{"id":14863,"date":"2022-12-09T16:24:04","date_gmt":"2022-12-09T21:24:04","guid":{"rendered":"https:\/\/www.alpha-technologies.com\/?p=14863"},"modified":"2023-10-02T16:21:11","modified_gmt":"2023-10-02T20:21:11","slug":"part-4-case-studies-determination-of-long-chain-branching-in-polymer-and-prediction-of-processability","status":"publish","type":"post","link":"https:\/\/www.alphatechnologies.cn\/en\/blog\/part-4-case-studies-determination-of-long-chain-branching-in-polymer-and-prediction-of-processability\/","title":{"rendered":"Part 4: Case Studies: Determination of Long Chain Branching in Polymer and Prediction of Processability"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"14863\" class=\"elementor elementor-14863\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" class=\"elementor-section elementor-top-section elementor-element elementor-element-681d5054 ot-traditional elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"681d5054\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-16bfe135 ot-flex-column-vertical\" data-id=\"16bfe135\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<section data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" class=\"elementor-section elementor-inner-section elementor-element elementor-element-7f8ef5b elementor-section-full_width ot-traditional elementor-section-height-default elementor-section-height-default\" data-id=\"7f8ef5b\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-2e8692f ot-flex-column-vertical\" data-id=\"2e8692f\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-53794bd elementor-widget elementor-widget-image\" data-id=\"53794bd\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/www.alphatechnologies.cn\/wp-content\/uploads\/2022\/06\/DSCF0010-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail wp-image-12924\" alt=\"Male Engineer near Alpha Technology instrument\" srcset=\"https:\/\/www.alphatechnologies.cn\/wp-content\/uploads\/2022\/06\/DSCF0010-150x150.jpg 150w, https:\/\/www.alphatechnologies.cn\/wp-content\/uploads\/2022\/06\/DSCF0010-720x720.jpg 720w\" sizes=\"(max-width: 150px) 100vw, 150px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-50af64b ot-column-items-center ot-flex-column-vertical\" data-id=\"50af64b\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-7c0778e elementor-widget elementor-widget-heading\" data-id=\"7c0778e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">Michele Scacchi<\/p>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a7affb3 elementor-widget elementor-widget-heading\" data-id=\"a7affb3\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h6 class=\"elementor-heading-title elementor-size-default\">Alpha Technologies<\/h6>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<div class=\"elementor-element elementor-element-bdccb5c elementor-widget elementor-widget-spacer\" data-id=\"bdccb5c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4726b6a4 elementor-widget elementor-widget-text-editor\" data-id=\"4726b6a4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><b><span data-contrast=\"auto\">ICYMI &#8211; Recap for people who go right to the fourth blog without reading the first one.<\/span><\/b><span data-ccp-props=\"{}\">\u00a0<\/span><\/p><p>The LAOS technique is very sensitive to detect the LCB in polymers and can be used for quality control in the thermoplastic and synthetic rubber production to check the polymer architecture and to predict the processability in their applications.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-66d85aa elementor-widget elementor-widget-spacer\" data-id=\"66d85aa\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2651d8b elementor-widget elementor-widget-heading\" data-id=\"2651d8b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Putting Theory Into Action: Case Studies <\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e4e20f5 elementor-widget elementor-widget-spacer\" data-id=\"e4e20f5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6eacb40 elementor-widget elementor-widget-text-editor\" data-id=\"6eacb40\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>To validate the approach presented in this blog and in several paper published by Alpha, we show\u00a0 several case studies in which we investigated several raw polymers, elastomer and thermoplastic materials such as Li-BR, EPDM, NBR, PE. Experiments were run on Alpha Technologies\u2019 Premier\u2122 RPAs using the LAOS test method.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3f17efc elementor-widget elementor-widget-spacer\" data-id=\"3f17efc\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d02fba9 elementor-widget elementor-widget-heading\" data-id=\"d02fba9\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Case Study One<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0508a51 elementor-widget elementor-widget-spacer\" data-id=\"0508a51\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-21ae752 elementor-widget elementor-widget-text-editor\" data-id=\"21ae752\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Three PBD (&#8220;low cis polybutadiene&#8221;, Li-BR) samples having the nearly the same molecular weight and molecular weight distribution but with a subtle difference in the long chain branching content were investigated to assess the sensitivity of the above-mentioned test method. These materials were synthetized by anionic polymerization leading to polybutadienes with a medium cis-1,4 content. Some characteristics of the molecular structure are summarized in the following table:<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b629bad elementor-widget elementor-widget-spacer\" data-id=\"b629bad\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c896a96 elementor-widget elementor-widget-image\" data-id=\"c896a96\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"768\" height=\"159\" src=\"https:\/\/www.alphatechnologies.cn\/wp-content\/uploads\/2022\/12\/BP4-LAOS-T1-768x159.jpg\" class=\"attachment-medium_large size-medium_large wp-image-15066\" alt=\"\" srcset=\"https:\/\/www.alphatechnologies.cn\/wp-content\/uploads\/2022\/12\/BP4-LAOS-T1-768x159.jpg 768w, https:\/\/www.alphatechnologies.cn\/wp-content\/uploads\/2022\/12\/BP4-LAOS-T1-300x62.jpg 300w, https:\/\/www.alphatechnologies.cn\/wp-content\/uploads\/2022\/12\/BP4-LAOS-T1-720x149.jpg 720w, https:\/\/www.alphatechnologies.cn\/wp-content\/uploads\/2022\/12\/BP4-LAOS-T1.jpg 882w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/>\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Table 1: Table of the molecular data of the examined PBD samples<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-be69024 elementor-widget elementor-widget-text-editor\" data-id=\"be69024\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>We performed a LAOS experiment on all investigated PDD samples at the following testing conditions: \u00b11000% strain at 150\u00b0C and 0.1 Hz.<\/p><p>By comparing the Lissajou figures of the investigated samples, it is possible to observe the increasing in the LCB content from sample A to sample C: the higher is the level of LCB the more deviate the loading part of the stress signal from the unloading part thus, increasing the loop surface and balancing the distortion<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5ddbf03 elementor-widget elementor-widget-spacer\" data-id=\"5ddbf03\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5f58ed8 elementor-widget elementor-widget-image\" data-id=\"5f58ed8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"768\" height=\"502\" src=\"https:\/\/www.alphatechnologies.cn\/wp-content\/uploads\/2022\/12\/BP4-LAOS-F1-2-768x502.jpg\" class=\"attachment-medium_large size-medium_large wp-image-15143\" alt=\"\" srcset=\"https:\/\/www.alphatechnologies.cn\/wp-content\/uploads\/2022\/12\/BP4-LAOS-F1-2-768x502.jpg 768w, https:\/\/www.alphatechnologies.cn\/wp-content\/uploads\/2022\/12\/BP4-LAOS-F1-2-300x196.jpg 300w, https:\/\/www.alphatechnologies.cn\/wp-content\/uploads\/2022\/12\/BP4-LAOS-F1-2-1024x669.jpg 1024w, https:\/\/www.alphatechnologies.cn\/wp-content\/uploads\/2022\/12\/BP4-LAOS-F1-2-720x470.jpg 720w, https:\/\/www.alphatechnologies.cn\/wp-content\/uploads\/2022\/12\/BP4-LAOS-F1-2.jpg 1058w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/>\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Figure 1: Lissajou figures of the investigated PBD samples<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3dfab32 elementor-widget elementor-widget-text-editor\" data-id=\"3dfab32\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"color: var( --e-global-color-text ); font-weight: var( --e-global-typography-text-font-weight );\">Using the above mentioned LCB indexes it is possible to quantify the different level of long chain branching in the examined samples confirming the high sensitivity of this test method:<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c3a3a27 elementor-widget elementor-widget-spacer\" data-id=\"c3a3a27\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4ac2379 elementor-widget elementor-widget-image\" data-id=\"4ac2379\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"161\" src=\"https:\/\/www.alphatechnologies.cn\/wp-content\/uploads\/2022\/12\/BP4-LAOS-T2-768x161.jpg\" class=\"attachment-medium_large size-medium_large wp-image-15073\" alt=\"\" srcset=\"https:\/\/www.alphatechnologies.cn\/wp-content\/uploads\/2022\/12\/BP4-LAOS-T2-768x161.jpg 768w, https:\/\/www.alphatechnologies.cn\/wp-content\/uploads\/2022\/12\/BP4-LAOS-T2-300x63.jpg 300w, https:\/\/www.alphatechnologies.cn\/wp-content\/uploads\/2022\/12\/BP4-LAOS-T2-720x151.jpg 720w, https:\/\/www.alphatechnologies.cn\/wp-content\/uploads\/2022\/12\/BP4-LAOS-T2.jpg 1018w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/>\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Table 2: Table of LCB indexes comparison of the investigated PBD samples<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9da8217 elementor-widget elementor-widget-text-editor\" data-id=\"9da8217\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>The big advantage of this technique compared with the traditional rheological techniques (Van Gurp-Palmen plot, damping function by stress relaxation in shear and extensional rheology) is that allows to detect subtle variation in the degree of branching due to the different coupling agent content that can significantly affect the processability of the end-product. In this case the examined PBD samples are used in the ABS production and a subtle variation in the branching content can cause a worsening in the processability of this material.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4bcef2a elementor-widget elementor-widget-spacer\" data-id=\"4bcef2a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3de5dd8 elementor-widget elementor-widget-heading\" data-id=\"3de5dd8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Case Study Two<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6e7d91e elementor-widget elementor-widget-spacer\" data-id=\"6e7d91e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ebe74c5 elementor-widget elementor-widget-text-editor\" data-id=\"ebe74c5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>In this study we characterized different EPDM grades having different molecular architectures and especially a different branching content. Also, in this case by comparing the Lissajou plots, it was possible to detect the different molecular architecture of the examined EPDM grades: Nordel shows a linear macrostructure while Vistalon is characterized by a branched macrostructure<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-72ca398 elementor-widget elementor-widget-spacer\" data-id=\"72ca398\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-953fee4 elementor-widget elementor-widget-image\" data-id=\"953fee4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"782\" height=\"462\" src=\"https:\/\/www.alphatechnologies.cn\/wp-content\/uploads\/2022\/12\/BP4-LAOS-F2-2.jpg\" class=\"attachment-large size-large wp-image-15150\" alt=\"\" srcset=\"https:\/\/www.alphatechnologies.cn\/wp-content\/uploads\/2022\/12\/BP4-LAOS-F2-2.jpg 782w, https:\/\/www.alphatechnologies.cn\/wp-content\/uploads\/2022\/12\/BP4-LAOS-F2-2-300x177.jpg 300w, https:\/\/www.alphatechnologies.cn\/wp-content\/uploads\/2022\/12\/BP4-LAOS-F2-2-768x454.jpg 768w, https:\/\/www.alphatechnologies.cn\/wp-content\/uploads\/2022\/12\/BP4-LAOS-F2-2-720x425.jpg 720w\" sizes=\"(max-width: 782px) 100vw, 782px\" \/>\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Figure 2: Lissajou figures of the investigated EPDM grades<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d948de6 elementor-widget elementor-widget-text-editor\" data-id=\"d948de6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Both LCB indexes confirms this trend: the linear EPDM grade, Nordel, has a negative value of the second LCB index 2 while the branched EPDM grade, Vistalon, shows high LCB indexes values.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-bc7164e elementor-widget elementor-widget-spacer\" data-id=\"bc7164e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-de3b72d elementor-widget elementor-widget-image\" data-id=\"de3b72d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"145\" src=\"https:\/\/www.alphatechnologies.cn\/wp-content\/uploads\/2022\/12\/BP4-LAOS-T3-768x145.jpg\" class=\"attachment-medium_large size-medium_large wp-image-15080\" alt=\"\" srcset=\"https:\/\/www.alphatechnologies.cn\/wp-content\/uploads\/2022\/12\/BP4-LAOS-T3-768x145.jpg 768w, https:\/\/www.alphatechnologies.cn\/wp-content\/uploads\/2022\/12\/BP4-LAOS-T3-300x57.jpg 300w, https:\/\/www.alphatechnologies.cn\/wp-content\/uploads\/2022\/12\/BP4-LAOS-T3-720x136.jpg 720w, https:\/\/www.alphatechnologies.cn\/wp-content\/uploads\/2022\/12\/BP4-LAOS-T3.jpg 992w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/>\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Table of LCB indexes comparison of the investigated EPDM grade samples<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9146f60 elementor-widget elementor-widget-text-editor\" data-id=\"9146f60\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>This approach <u>is used for QC in the synthetic rubber production<\/u> <u>to check the polymer architecture<\/u>: in this case the LCB index of an EPDM grade is monitored\/tracked during the production run <u>to check the branching (LCB content) in <\/u>different lots, see the figure below. The same approach can also be used by compounder to check the quality of the raw material\/elastomers.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2e71171 elementor-widget elementor-widget-spacer\" data-id=\"2e71171\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7357a9e elementor-widget elementor-widget-image\" data-id=\"7357a9e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"472\" height=\"299\" src=\"https:\/\/www.alphatechnologies.cn\/wp-content\/uploads\/2022\/12\/BP4-LAOS-F3-2.jpg\" class=\"attachment-medium_large size-medium_large wp-image-15157\" alt=\"\" srcset=\"https:\/\/www.alphatechnologies.cn\/wp-content\/uploads\/2022\/12\/BP4-LAOS-F3-2.jpg 472w, https:\/\/www.alphatechnologies.cn\/wp-content\/uploads\/2022\/12\/BP4-LAOS-F3-2-300x190.jpg 300w\" sizes=\"(max-width: 472px) 100vw, 472px\" \/>\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Figure 3: LCB index detection for QC of EPDM <\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-28e6879 elementor-widget elementor-widget-spacer\" data-id=\"28e6879\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-fc9d8e7 elementor-widget elementor-widget-heading\" data-id=\"fc9d8e7\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Case Study Three<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-96fb630 elementor-widget elementor-widget-spacer\" data-id=\"96fb630\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8b85d1b elementor-widget elementor-widget-text-editor\" data-id=\"8b85d1b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>In this case study we investigated three e-NBR samples with a different acrylonitrile (ACN) content, varying from 28% to 39%. <u>Despite the different acrylonitrile content<\/u>, all the considered grades have similar Mooney Torque at standard conditions, i.e., ML(1+4) at 2 rpm and T = 100\u00b0C.<\/p><p>By comparing the Lissajou figures of the investigated materials, it was possible to detect the different ACN content in the examined NBR samples.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c0dcc43 elementor-widget elementor-widget-spacer\" data-id=\"c0dcc43\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-fd759f2 elementor-widget elementor-widget-image\" data-id=\"fd759f2\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"485\" height=\"296\" src=\"https:\/\/www.alphatechnologies.cn\/wp-content\/uploads\/2022\/12\/BP4-LAOS-F4.jpg\" class=\"attachment-medium_large size-medium_large wp-image-15164\" alt=\"\" srcset=\"https:\/\/www.alphatechnologies.cn\/wp-content\/uploads\/2022\/12\/BP4-LAOS-F4.jpg 485w, https:\/\/www.alphatechnologies.cn\/wp-content\/uploads\/2022\/12\/BP4-LAOS-F4-300x183.jpg 300w\" sizes=\"(max-width: 485px) 100vw, 485px\" \/>\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Figure 4: Lissajou figures of the investigated NBR samples<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6cc0aea elementor-widget elementor-widget-spacer\" data-id=\"6cc0aea\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-567bb9a elementor-widget elementor-widget-image\" data-id=\"567bb9a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"145\" src=\"https:\/\/www.alphatechnologies.cn\/wp-content\/uploads\/2022\/12\/BP4-LAOS-T3-768x145.jpg\" class=\"attachment-medium_large size-medium_large wp-image-15080\" alt=\"\" srcset=\"https:\/\/www.alphatechnologies.cn\/wp-content\/uploads\/2022\/12\/BP4-LAOS-T3-768x145.jpg 768w, https:\/\/www.alphatechnologies.cn\/wp-content\/uploads\/2022\/12\/BP4-LAOS-T3-300x57.jpg 300w, https:\/\/www.alphatechnologies.cn\/wp-content\/uploads\/2022\/12\/BP4-LAOS-T3-720x136.jpg 720w, https:\/\/www.alphatechnologies.cn\/wp-content\/uploads\/2022\/12\/BP4-LAOS-T3.jpg 992w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/>\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Table 4: Table of LCB indexes comparison of the investigated NBR samples<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3f62924 elementor-widget elementor-widget-spacer\" data-id=\"3f62924\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b208c4c elementor-widget elementor-widget-text-editor\" data-id=\"b208c4c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Also, in this case the LAOS technique allows to detect the different branching content in the investigated e-NBR samples as confirmed by both LCB indexes. Additionally, the LAOS method can be used <u>to check the presence of gel content<\/u>. A significant gel content can affect the processability of this material in the mixing and in the extrusion process.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a7a6b9f elementor-widget elementor-widget-spacer\" data-id=\"a7a6b9f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-43c889b elementor-widget elementor-widget-heading\" data-id=\"43c889b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Case Study Four<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3165ef8 elementor-widget elementor-widget-spacer\" data-id=\"3165ef8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0cfbf43 elementor-widget elementor-widget-text-editor\" data-id=\"0cfbf43\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Finally, the LAOS technique is used to check the presence of the LCB in PEs grades and to quantify this content. In this study we compared a linear PE grade with a long chain branched PE grade.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-338f050 elementor-widget elementor-widget-spacer\" data-id=\"338f050\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5e36226 elementor-widget elementor-widget-image\" data-id=\"5e36226\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"754\" height=\"471\" src=\"https:\/\/www.alphatechnologies.cn\/wp-content\/uploads\/2022\/12\/BP4-LAOS-F5.jpg\" class=\"attachment-large size-large wp-image-15171\" alt=\"\" srcset=\"https:\/\/www.alphatechnologies.cn\/wp-content\/uploads\/2022\/12\/BP4-LAOS-F5.jpg 754w, https:\/\/www.alphatechnologies.cn\/wp-content\/uploads\/2022\/12\/BP4-LAOS-F5-300x187.jpg 300w, https:\/\/www.alphatechnologies.cn\/wp-content\/uploads\/2022\/12\/BP4-LAOS-F5-720x450.jpg 720w\" sizes=\"(max-width: 754px) 100vw, 754px\" \/>\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Figure 5: Lissajou figures of the investigated PE samples<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6d44894 elementor-widget elementor-widget-spacer\" data-id=\"6d44894\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0abfec8 elementor-widget elementor-widget-text-editor\" data-id=\"0abfec8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Also, in this case by comparing the Lissajou plots, it was possible to detect the different molecular architecture of the examined PE grades: sample 1 shows a linear macrostructure while sample 2 is characterized by a branched macrostructure.<\/p><p>Table of LCB indexes comparison of the investigated PE samples<\/p><p>Using both LCB indexes it was possible to confirm the completely linear macrostructure of the sample 1 (negative value of the second LCB index 2)\u00a0 and the long chain branched structure of sample 2.<\/p><p>Also, in this case the LCB has a profound effect on the processability of this class of material, because the long branches for PEs has been used to delay the onset of melt fracture toward higher shear rates, and the LAOS technique is very sensitive to detect this kind of branching content<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7b1fac9 elementor-widget elementor-widget-spacer\" data-id=\"7b1fac9\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ec4b882 elementor-widget elementor-widget-image\" data-id=\"ec4b882\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"160\" src=\"https:\/\/www.alphatechnologies.cn\/wp-content\/uploads\/2022\/12\/BP4-LAOS-T5-768x160.jpg\" class=\"attachment-medium_large size-medium_large wp-image-15094\" alt=\"\" srcset=\"https:\/\/www.alphatechnologies.cn\/wp-content\/uploads\/2022\/12\/BP4-LAOS-T5-768x160.jpg 768w, https:\/\/www.alphatechnologies.cn\/wp-content\/uploads\/2022\/12\/BP4-LAOS-T5-300x63.jpg 300w, https:\/\/www.alphatechnologies.cn\/wp-content\/uploads\/2022\/12\/BP4-LAOS-T5-720x150.jpg 720w, https:\/\/www.alphatechnologies.cn\/wp-content\/uploads\/2022\/12\/BP4-LAOS-T5.jpg 940w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/>\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Table of LCB indexes comparison of the investigated PE samples<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c3289a1 elementor-widget elementor-widget-text-editor\" data-id=\"c3289a1\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Using both LCB indexes it was possible to confirm the completely linear macrostructure of the sample 1 (negative value of the second LCB index 2)\u00a0 and the long chain branched structure of sample 2.<\/p><p>Also, in this case the LCB has a profound effect on the processability of this class of material, because the long branches for PEs has been used to delay the onset of melt fracture toward higher shear rates, and the LAOS technique is very sensitive to detect this kind of branching content<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" class=\"elementor-section elementor-top-section elementor-element elementor-element-9bc2ce4 ot-traditional elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"9bc2ce4\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-f1ee84d ot-flex-column-vertical\" data-id=\"f1ee84d\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-9716899 elementor-grid-eael-col-4 elementor-grid-tablet-eael-col-2 elementor-grid-mobile-eael-col-1 elementor-widget elementor-widget-eael-post-grid\" data-id=\"9716899\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;eael_post_grid_columns&quot;:&quot;eael-col-4&quot;,&quot;eael_post_grid_columns_tablet&quot;:&quot;eael-col-2&quot;,&quot;eael_post_grid_columns_mobile&quot;:&quot;eael-col-1&quot;}\" data-widget_type=\"eael-post-grid.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div id=\"eael-post-grid-9716899\" class=\"eael-post-grid-container\">\n            <div class=\"eael-post-grid eael-post-appender eael-post-appender-9716899 eael-post-grid-style-one\" data-layout-mode=\"masonry\"><article class=\"eael-grid-post  eael-post-grid-column eael-pg-post-14877 category-blog tags-laos-large-amplitude-oscillatory-shear-rpa-rubber-process-analyzer\" data-id=\"14877\">\n        <div class=\"eael-grid-post-holder\">\n            <div class=\"eael-grid-post-holder-inner\"><div class=\"eael-entry-wrapper\"><header class=\"eael-entry-header\"><h2 class=\"eael-entry-title\"><a class=\"eael-grid-post-link\" href=\"https:\/\/www.alphatechnologies.cn\/en\/blog\/part-3-using-laos-to-quantify-long-chain-branching-and-to-predict-processability\/\" title=\"Part 3: Using LAOS to Quantify Long Chain Branching and to Predict Processability\">Part 3: Using LAOS to Quantify Long Chain Branching and to Predict Processability<\/a><\/h2><\/header><div class=\"eael-entry-content\">\n                        <div class=\"eael-grid-post-excerpt\"><p>Michele Scacchi Alpha Technologies ICYMI \u2013 Recap for people who...<\/p><a href=\"https:\/\/www.alphatechnologies.cn\/en\/blog\/part-3-using-laos-to-quantify-long-chain-branching-and-to-predict-processability\/\" class=\"eael-post-elements-readmore-btn\">Read More<\/a><\/div>\n                    <\/div><div class=\"eael-entry-footer\"><div class=\"eael-author-avatar\"><a href=\"https:\/\/www.alphatechnologies.cn\/en\/author\/amiesedlock\/\"><img alt='Amie Sedlock' src='https:\/\/secure.gravatar.com\/avatar\/fb9f11b8e87f9e5cf4376bec7b97805f31f284050697ff9e90f192c000186ebf?s=96&#038;d=mm&#038;r=g' srcset='https:\/\/secure.gravatar.com\/avatar\/fb9f11b8e87f9e5cf4376bec7b97805f31f284050697ff9e90f192c000186ebf?s=192&#038;d=mm&#038;r=g 2x' class='avatar avatar-96 photo' height='96' width='96' \/><\/a><\/div><div class=\"eael-entry-meta\"><span class=\"eael-posted-by\"><a href=\"https:\/\/www.alphatechnologies.cn\/en\/author\/amiesedlock\/\" title=\"Posts by Amie Sedlock\" rel=\"author\">Amie Sedlock<\/a><\/span><span class=\"eael-posted-on\"><time datetime=\"2022\u5e7412\u670812\u65e5\">2022\u5e7412\u670812\u65e5<\/time><\/span><\/div><\/div><\/div><\/div>\n        <\/div>\n    <\/article><article class=\"eael-grid-post  eael-post-grid-column eael-pg-post-14863 category-blog tags-laos-large-amplitude-oscillatory-shear-rpa-rubber-process-analyzer\" data-id=\"14863\">\n        <div class=\"eael-grid-post-holder\">\n            <div class=\"eael-grid-post-holder-inner\"><div class=\"eael-entry-wrapper\"><header class=\"eael-entry-header\"><h2 class=\"eael-entry-title\"><a class=\"eael-grid-post-link\" href=\"https:\/\/www.alphatechnologies.cn\/en\/blog\/part-4-case-studies-determination-of-long-chain-branching-in-polymer-and-prediction-of-processability\/\" title=\"Part 4: Case Studies: Determination of Long Chain Branching in Polymer and Prediction of Processability\">Part 4: Case Studies: Determination of Long Chain Branching in Polymer and Prediction of Processability<\/a><\/h2><\/header><div class=\"eael-entry-content\">\n                        <div class=\"eael-grid-post-excerpt\"><p>Michele Scacchi Alpha Technologies ICYMI &#8211; Recap for people who...<\/p><a href=\"https:\/\/www.alphatechnologies.cn\/en\/blog\/part-4-case-studies-determination-of-long-chain-branching-in-polymer-and-prediction-of-processability\/\" class=\"eael-post-elements-readmore-btn\">Read More<\/a><\/div>\n                    <\/div><div class=\"eael-entry-footer\"><div class=\"eael-author-avatar\"><a href=\"https:\/\/www.alphatechnologies.cn\/en\/author\/amiesedlock\/\"><img alt='Amie Sedlock' src='https:\/\/secure.gravatar.com\/avatar\/fb9f11b8e87f9e5cf4376bec7b97805f31f284050697ff9e90f192c000186ebf?s=96&#038;d=mm&#038;r=g' srcset='https:\/\/secure.gravatar.com\/avatar\/fb9f11b8e87f9e5cf4376bec7b97805f31f284050697ff9e90f192c000186ebf?s=192&#038;d=mm&#038;r=g 2x' class='avatar avatar-96 photo' height='96' width='96' \/><\/a><\/div><div class=\"eael-entry-meta\"><span class=\"eael-posted-by\"><a href=\"https:\/\/www.alphatechnologies.cn\/en\/author\/amiesedlock\/\" title=\"Posts by Amie Sedlock\" rel=\"author\">Amie Sedlock<\/a><\/span><span class=\"eael-posted-on\"><time datetime=\"2022\u5e7412\u670809\u65e5\">2022\u5e7412\u670809\u65e5<\/time><\/span><\/div><\/div><\/div><\/div>\n        <\/div>\n    <\/article><article class=\"eael-grid-post  eael-post-grid-column eael-pg-post-13345 category-blog tags-laos-large-amplitude-oscillatory-shear-rpa-rubber-process-analyzer\" data-id=\"13345\">\n        <div class=\"eael-grid-post-holder\">\n            <div class=\"eael-grid-post-holder-inner\"><div class=\"eael-entry-wrapper\"><header class=\"eael-entry-header\"><h2 class=\"eael-entry-title\"><a class=\"eael-grid-post-link\" href=\"https:\/\/www.alphatechnologies.cn\/en\/blog\/part-1-ft-rheology-via-large-amplitude-oscillatory-shear-laos-a-five-part-series\/\" title=\"Part 1: FT Rheology via Large Amplitude Oscillatory Shear (LAOS) &#8211; a five part series\">Part 1: FT Rheology via Large Amplitude Oscillatory Shear (LAOS) &#8211; a five part series<\/a><\/h2><\/header><div class=\"eael-entry-content\">\n                        <div class=\"eael-grid-post-excerpt\"><p>Michele Scacchi Alpha Technologies Optimizing your Mixing Process Using LAOS...<\/p><a href=\"https:\/\/www.alphatechnologies.cn\/en\/blog\/part-1-ft-rheology-via-large-amplitude-oscillatory-shear-laos-a-five-part-series\/\" class=\"eael-post-elements-readmore-btn\">Read More<\/a><\/div>\n                    <\/div><div class=\"eael-entry-footer\"><div class=\"eael-author-avatar\"><a href=\"https:\/\/www.alphatechnologies.cn\/en\/author\/amiesedlock\/\"><img alt='Amie Sedlock' src='https:\/\/secure.gravatar.com\/avatar\/fb9f11b8e87f9e5cf4376bec7b97805f31f284050697ff9e90f192c000186ebf?s=96&#038;d=mm&#038;r=g' srcset='https:\/\/secure.gravatar.com\/avatar\/fb9f11b8e87f9e5cf4376bec7b97805f31f284050697ff9e90f192c000186ebf?s=192&#038;d=mm&#038;r=g 2x' class='avatar avatar-96 photo' height='96' width='96' \/><\/a><\/div><div class=\"eael-entry-meta\"><span class=\"eael-posted-by\"><a href=\"https:\/\/www.alphatechnologies.cn\/en\/author\/amiesedlock\/\" title=\"Posts by Amie Sedlock\" rel=\"author\">Amie Sedlock<\/a><\/span><span class=\"eael-posted-on\"><time datetime=\"2022\u5e7411\u670811\u65e5\">2022\u5e7411\u670811\u65e5<\/time><\/span><\/div><\/div><\/div><\/div>\n        <\/div>\n    <\/article><article class=\"eael-grid-post  eael-post-grid-column eael-pg-post-14282 category-blog tags-laos-large-amplitude-oscillatory-shear-rpa-rubber-process-analyzer\" data-id=\"14282\">\n        <div class=\"eael-grid-post-holder\">\n            <div class=\"eael-grid-post-holder-inner\"><div class=\"eael-entry-wrapper\"><header class=\"eael-entry-header\"><h2 class=\"eael-entry-title\"><a class=\"eael-grid-post-link\" href=\"https:\/\/www.alphatechnologies.cn\/en\/blog\/finding-balance-measure-cure-and-blowing-reactions-using-an-rpa\/\" title=\"Finding Balance: Measure Cure &#038; Blowing Reactions Using an RPA\u00a0\">Finding Balance: Measure Cure &#038; Blowing Reactions Using an RPA\u00a0<\/a><\/h2><\/header><div class=\"eael-entry-content\">\n                        <div class=\"eael-grid-post-excerpt\"><p>Whether you are extruding or injection molding, the production of...<\/p><a href=\"https:\/\/www.alphatechnologies.cn\/en\/blog\/finding-balance-measure-cure-and-blowing-reactions-using-an-rpa\/\" class=\"eael-post-elements-readmore-btn\">Read More<\/a><\/div>\n                    <\/div><div class=\"eael-entry-footer\"><div class=\"eael-author-avatar\"><a href=\"https:\/\/www.alphatechnologies.cn\/en\/author\/amiesedlock\/\"><img alt='Amie Sedlock' src='https:\/\/secure.gravatar.com\/avatar\/fb9f11b8e87f9e5cf4376bec7b97805f31f284050697ff9e90f192c000186ebf?s=96&#038;d=mm&#038;r=g' srcset='https:\/\/secure.gravatar.com\/avatar\/fb9f11b8e87f9e5cf4376bec7b97805f31f284050697ff9e90f192c000186ebf?s=192&#038;d=mm&#038;r=g 2x' class='avatar avatar-96 photo' height='96' width='96' \/><\/a><\/div><div class=\"eael-entry-meta\"><span class=\"eael-posted-by\"><a href=\"https:\/\/www.alphatechnologies.cn\/en\/author\/amiesedlock\/\" title=\"Posts by Amie Sedlock\" rel=\"author\">Amie Sedlock<\/a><\/span><span class=\"eael-posted-on\"><time datetime=\"2022\u5e7410\u670825\u65e5\">2022\u5e7410\u670825\u65e5<\/time><\/span><\/div><\/div><\/div><\/div>\n        <\/div>\n    <\/article><\/div>\n            <div class=\"clearfix\"><\/div>\n        <\/div>            <div class=\"eael-load-more-button-wrap eael-force-hide\">\n                <button class=\"eael-load-more-button\" id=\"eael-load-more-btn-9716899\" data-widget-id=\"9716899\" data-widget=\"9716899\" data-page-id=\"14863\" data-template=\"{&quot;dir&quot;:&quot;lite&quot;,&quot;file_name&quot;:&quot;one.php&quot;,&quot;name&quot;:&quot;Post-Grid&quot;}\" data-class=\"Essential_Addons_Elementor\\Elements\\Post_Grid\" data-layout=\"masonry\" data-page=\"1\" data-args=\"orderby=date&amp;order=desc&amp;ignore_sticky_posts=1&amp;post_status=publish&amp;posts_per_page=4&amp;offset=0&amp;post_type=post&amp;tax_query%5B0%5D%5Btaxonomy%5D=post_tag&amp;tax_query%5B0%5D%5Bfield%5D=term_id&amp;tax_query%5B0%5D%5Bterms%5D%5B0%5D=127&amp;tax_query%5Brelation%5D=AND\" data-max-page=\"2\">\n                    <span class=\"eael-btn-loader button__loader\"><\/span>\n                    <span class=\"eael_load_more_text\">Load More<\/span>\n                <\/button>\n            <\/div>\n            \t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" class=\"elementor-section elementor-top-section elementor-element elementor-element-87d2b48 ot-traditional elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"87d2b48\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-e8ff2cb ot-flex-column-vertical\" data-id=\"e8ff2cb\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<section data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" class=\"elementor-section elementor-inner-section elementor-element elementor-element-a09896b elementor-section-full_width elementor-section-content-bottom ot-traditional elementor-section-height-default elementor-section-height-default\" data-id=\"a09896b\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-inner-column elementor-element elementor-element-9ef113a ot-flex-column-vertical\" data-id=\"9ef113a\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-e3f4d24 elementor-widget elementor-widget-heading\" data-id=\"e3f4d24\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Related Links<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" class=\"elementor-section elementor-inner-section elementor-element elementor-element-ec5f2d4 ot-traditional elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"ec5f2d4\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-inner-column elementor-element elementor-element-da3b6bc ot-flex-column-vertical\" data-id=\"da3b6bc\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-7544b05 elementor-align-center elementor-widget elementor-widget-button\" data-id=\"7544b05\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"\/blog\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">More Thought Leadership<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Michele Scacchi Alpha Technologies ICYMI &#8211; Recap for people who go right to the fourth blog without reading the first one.\u00a0 The LAOS [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_eb_attr":"","footnotes":""},"categories":[19],"tags":[127,128,21,173],"post_folder":[],"class_list":["post-14863","post","type-post","status-publish","format-standard","hentry","category-blog","tag-laos","tag-large-amplitude-oscillatory-shear","tag-rpa","tag-rubber-process-analyzer"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.alphatechnologies.cn\/en\/wp-json\/wp\/v2\/posts\/14863","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.alphatechnologies.cn\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.alphatechnologies.cn\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.alphatechnologies.cn\/en\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.alphatechnologies.cn\/en\/wp-json\/wp\/v2\/comments?post=14863"}],"version-history":[{"count":10,"href":"https:\/\/www.alphatechnologies.cn\/en\/wp-json\/wp\/v2\/posts\/14863\/revisions"}],"predecessor-version":[{"id":16423,"href":"https:\/\/www.alphatechnologies.cn\/en\/wp-json\/wp\/v2\/posts\/14863\/revisions\/16423"}],"wp:attachment":[{"href":"https:\/\/www.alphatechnologies.cn\/en\/wp-json\/wp\/v2\/media?parent=14863"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.alphatechnologies.cn\/en\/wp-json\/wp\/v2\/categories?post=14863"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.alphatechnologies.cn\/en\/wp-json\/wp\/v2\/tags?post=14863"},{"taxonomy":"post_folder","embeddable":true,"href":"https:\/\/www.alphatechnologies.cn\/en\/wp-json\/wp\/v2\/post_folder?post=14863"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}