{"id":13277,"date":"2022-08-26T14:14:27","date_gmt":"2022-08-26T18:14:27","guid":{"rendered":"https:\/\/www.alpha-technologies.com\/?p=13277"},"modified":"2025-10-31T00:44:09","modified_gmt":"2025-10-31T04:44:09","slug":"collaborative-study-to-reduce-heat-build-up-testing","status":"publish","type":"post","link":"https:\/\/www.alphatechnologies.cn\/en\/blog\/collaborative-study-to-reduce-heat-build-up-testing\/","title":{"rendered":"Collaborative Study to Reduce Heat Build-up Testing"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"13277\" class=\"elementor elementor-13277\" 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\/08\/Alpha-Engineer-with-arms-crossed-near-Premier-RPA-dilip-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail wp-image-13896\" alt=\"Alpha-Engineer-with-arms-crossed-near-Premier-RPA-dilip\" \/>\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\">Author <\/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<p class=\"elementor-heading-title elementor-size-default\">Dilip Dhupia<\/p>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-85b589b elementor-widget elementor-widget-heading\" data-id=\"85b589b\" 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\">Application Engineer, India<\/p>\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-aaed6e5 elementor-widget elementor-widget-spacer\" data-id=\"aaed6e5\" 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-54081f4 elementor-widget elementor-widget-text-editor\" data-id=\"54081f4\" 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>Alpha&#8217;s engineers conducted a study in collaboration with the Hari Shankar Singhania Elastomer &amp; Tyre Research Institute (<a href=\"http:\/\/www.hasetri.com\/\">HASETRI<\/a>) in India to develop methods that accelerated testing of heat build-up properties of elastomer compounds from as much as 18 hours to about 30 minutes.\u00a0 Download the full technical report or read the summary below to learn more.<\/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-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-150d606 elementor-widget elementor-widget-heading\" data-id=\"150d606\" 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\"><br>Background On Heat Build-Up<\/h3>\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><span style=\"color: var( --e-global-color-text ); font-weight: var( --e-global-typography-text-font-weight );\">We all know why we use fillers, especially carbon black, in our rubber compounds. Carbon black fillers enhance the ultimate performance of rubber products such as good wear resistance, damping behavior and the ability to undergo very large deformation with nearly no permanent deformation. They can affect not only the dynamic modulus, both viscous modulus and elastic modulus, but also their ratio, i.e., loss factor, which is related to the portion of the energy dissipated during dynamic deformation.<\/span><\/p><p><span data-contrast=\"auto\">In practice, the energy loss in rubber products during dynamic strain is of great importance, for example, in vibration mounts and tires.\u00a0 Energy loss acts as service performance predictors of these products. Specifically, energy loss is a predictor of heat generation and fatigue life for the vibration mounts, and rolling resistance, traction, and skid resistance for tires.\u00a0 When rubber is deformed an energy input is involved which is released in part when the rubber returns to its original shape.\u00a0 The part which is not returned as mechanical energy is dissipated as heat.<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:0,&quot;335559740&quot;:240}\">\u00a0<\/span><\/p><p><span data-contrast=\"auto\">Rubber products under dynamic conditions and subjected to repeated deformations with sufficient magnitude and frequency, will result in the generation of considerable heat (depending on the rate of heat dissipation) and significant rise in temperature.\u00a0 The product\u2019s temperature reaches steady state after running for a certain period, when the rate of heat generation equals with the rate of heat dissipation.\u00a0 The extent of heat generation governs the change in viscoelastic properties of the product, which may lead to premature failure.\u00a0 The process is more severe in thick rubber blocks and causes the interior part of the block to become so hot that the rubber explodes.\u00a0 This is an important mode of failure in thick rubber products such as tire treads and tank track pads.<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:0,&quot;335559740&quot;:240}\">\u00a0<\/span><\/p><p><span data-contrast=\"auto\"><span style=\"color: var( --e-global-color-text ); font-weight: var( --e-global-typography-text-font-weight );\">Accurate, repeatable testing of rubber compounds to assess their heat build-up properties is essential for product manufacturers to safeguard the people using their products.\u00a0<\/span>Typically, tests for heat build-up characteristics involve multiple instruments such as those used in a <\/span><a href=\"https:\/\/doi.org\/10.5254\/1.3538558\"><span data-contrast=\"none\">this study<\/span><\/a><span data-contrast=\"auto\">.\u00a0 Specifically:\u00a0<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:0,&quot;335559740&quot;:240}\">\u00a0<\/span><\/p><ul><li style=\"list-style-type: none;\"><ul><li><span data-contrast=\"auto\">Rheometric properties were studied by using a Premier\u2122<\/span> <span data-contrast=\"auto\">MDR (Alpha Technologies, USA) in line with <a href=\"https:\/\/www.astm.org\/d5289-19a.html\">ASTM D5289<\/a>.\u00a0<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:0,&quot;335559740&quot;:240}\">\u00a0<\/span><\/li><li><span data-contrast=\"auto\">Shore A hardness was determined on Multi Unit Hardness Tester in line with <a href=\"https:\/\/www.astm.org\/d2240-15r21.html\">ASTM D2240<\/a>. <\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:0,&quot;335559740&quot;:240}\">\u00a0<\/span><\/li><li><span data-contrast=\"auto\">Stress strain and Hysteresis properties were ascertained by using Universal Testing Machine in line with <a href=\"https:\/\/www.astm.org\/d0412-16r21.html\">ASTM D412<\/a> using a die C dumbbell.\u00a0<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:0,&quot;335559740&quot;:240}\">\u00a0<\/span><\/li><li><span data-contrast=\"auto\">Density was carried out in line with <a href=\"https:\/\/www.iso.org\/standard\/72777.html\">ISO 2781.\u00a0<\/a><\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:0,&quot;335559740&quot;:240}\">\u00a0<\/span><\/li><li><span data-contrast=\"auto\">Rebound Resilience was tested in line with<a href=\"https:\/\/www.iso.org\/standard\/68111.html\"> ISO 4662<\/a> at 100\u00ba<\/span><span data-contrast=\"auto\">C.\u00a0<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:0,&quot;335559740&quot;:240}\">\u00a0<\/span><\/li><li><span data-contrast=\"auto\">Heat buildup (HBU) test was carried out on a Goodrich Flexometer in line with <a href=\"https:\/\/www.astm.org\/d0623-07r19e01.html\">ASTM D623<\/a>.\u00a0<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:0,&quot;335559740&quot;:240}\">\u00a0<\/span><\/li><li><span data-contrast=\"auto\">Dynamic Mechanical Analysis (DMA) of cured samples was carried out in line with <a href=\"https:\/\/www.astm.org\/d5992-96r18.html\">ASTM D5992<\/a>.<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:0,&quot;335559740&quot;:240}\">\u00a0<\/span><\/li><\/ul><\/li><\/ul><p><span data-contrast=\"auto\">Parallel testing was performed on identical samples on Alpha\u2019s Premier RPA.<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:0,&quot;335559740&quot;:240}\">\u00a0<\/span><\/p><p><span data-contrast=\"auto\">The study was performed in two phases: phase 1 establishes that filler is the primary reason for HBU in the rubber compound; phase 2 studies the effect of carbon black particle size on HBU.<\/span><\/p><p><span data-contrast=\"auto\">\u00a0<\/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-e7b7e4b elementor-widget elementor-widget-heading\" data-id=\"e7b7e4b\" 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\">Why Use a Premier RPA to Measure Heat Build-Up?<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-36ac4b2 elementor-widget elementor-widget-text-editor\" data-id=\"36ac4b2\" 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 class=\"TextRun SCXW195689134 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"auto\"><span class=\"NormalTextRun SCXW195689134 BCX0\">T<\/span><span class=\"NormalTextRun SCXW195689134 BCX0\">he Premier<\/span><\/span> <span class=\"TextRun SCXW195689134 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"auto\"><span class=\"NormalTextRun SCXW195689134 BCX0\">RPA <\/span><span class=\"NormalTextRun SCXW195689134 BCX0\">is<\/span><span class=\"NormalTextRun SCXW195689134 BCX0\"> an ideal instrument for measurement of heat build-up in <\/span><span class=\"NormalTextRun SCXW195689134 BCX0\">a <\/span><span class=\"NormalTextRun SCXW195689134 BCX0\">cured rubber sample, because of its favorable sample surface area to sample volume ratio and ability to appl<\/span><span class=\"NormalTextRun SCXW195689134 BCX0\">y v<\/span><span class=\"NormalTextRun SCXW195689134 BCX0\">ery high strains (<\/span><\/span><span class=\"TextRun SCXW195689134 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"auto\"><span class=\"NormalTextRun SCXW195689134 BCX0\">\u00b1<\/span><\/span><span class=\"TextRun SCXW195689134 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"auto\"><span class=\"NormalTextRun SCXW195689134 BCX0\"> 90\u00b0<\/span><\/span><span class=\"TextRun SCXW195689134 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"auto\"><span class=\"NormalTextRun SCXW195689134 BCX0\">\u00a0{<\/span><\/span><span class=\"TextRun SCXW195689134 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"auto\"><span class=\"NormalTextRun SCXW195689134 BCX0\">\u00b1<\/span><\/span><span class=\"TextRun SCXW195689134 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"auto\"><span class=\"NormalTextRun SCXW195689134 BCX0\"> 1256%}).\u00a0 This was found to be an ideal strain range for measurement of heat build-up. The RPA die design has a high surface area in relation to the mass of the sample itself. This design was deliberate to assure rapid temperature recovery for the sample, once the dies close and the test starts. <\/span><\/span><span class=\"TextRun SCXW195689134 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"none\"><span class=\"NormalTextRun SCXW195689134 BCX0\">Premier<\/span><\/span> <span class=\"TextRun SCXW195689134 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"none\"><span class=\"NormalTextRun SCXW195689134 BCX0\">RPA maintains the temperature of rubber sample within <\/span><\/span><span class=\"TextRun SCXW195689134 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"none\"><span class=\"NormalTextRun SCXW195689134 BCX0\">\u00b1<\/span><\/span><span class=\"TextRun SCXW195689134 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"none\"><span class=\"NormalTextRun SCXW195689134 BCX0\"> 0.2<\/span><\/span><span class=\"TextRun SCXW195689134 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"none\"><span class=\"NormalTextRun SCXW195689134 BCX0\">\u00b0<\/span><\/span><span class=\"TextRun SCXW195689134 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"none\"><span class=\"NormalTextRun SCXW195689134 BCX0\">C of set temperature, utilizing combination of its custom designed heating control system and forced air cooling system (across the dies). <\/span><span class=\"NormalTextRun SCXW195689134 BCX0\">E<\/span><span class=\"NormalTextRun SCXW195689134 BCX0\">very effort is applied to keep the temperature constant to obtain precise dynamic properties of the rubber sample.\u00a0 Dynamic property measurements such as G\u2019, G\u2019\u2019, <\/span><\/span><span class=\"TextRun SCXW195689134 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"none\"><span class=\"NormalTextRun SCXW195689134 BCX0\">h<\/span><\/span><span class=\"TextRun SCXW195689134 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"none\"><span class=\"NormalTextRun SCXW195689134 BCX0\">\u2018, and <\/span><\/span><span class=\"TextRun SCXW195689134 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"none\"><span class=\"NormalTextRun SCXW195689134 BCX0\">h<\/span><\/span><span class=\"TextRun SCXW195689134 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"none\"><span class=\"NormalTextRun SCXW195689134 BCX0\">* would not have much validity if the sample temperature was allowed to rise from viscous heating due to test conditions. <\/span><\/span><\/p><p><span class=\"TextRun SCXW195689134 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"none\"><span class=\"NormalTextRun SCXW195689134 BCX0\">However, a special modification of the Premier RPA disabled the forced air-cooling system to allow the temperature of the upper and lower dies to freely rise from viscous heating.\u00a0 Thus, the heat from the sample was a result of carefully controlled high sinusoidal strain movement of the lower die.\u00a0 <\/span><span class=\"NormalTextRun SCXW195689134 BCX0\">As a result, <\/span><\/span><span class=\"TextRun SCXW195689134 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"auto\"><span class=\"NormalTextRun SCXW195689134 BCX0\">this unique die cavity geometry also provides effective measurements of heat build-up when the test conditions in Premier RPA are properly optimized.<\/span><\/span><span class=\"EOP SCXW195689134 BCX0\" data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:0,&quot;335559740&quot;:240}\">\u00a0<\/span><\/p><p><span class=\"EOP SCXW195689134 BCX0\" data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:0,&quot;335559740&quot;:240}\">\u00a0<\/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-ce4a562 elementor-widget elementor-widget-spacer\" data-id=\"ce4a562\" 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-34780a2 elementor-widget elementor-widget-heading\" data-id=\"34780a2\" 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\">The Takeaway: Excellent Correlation. Faster Results. <\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-43f97cd elementor-widget elementor-widget-text-editor\" data-id=\"43f97cd\" 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 data-contrast=\"auto\">This <\/span><span data-contrast=\"none\">study<\/span> <span data-contrast=\"auto\">demonstrates excellent correlation between Premier RPA tan \u03b4 and the<\/span><span data-contrast=\"auto\"> \u0394T of Goodrich\u00a0<\/span><span style=\"color: var( --e-global-color-text ); font-weight: var( --e-global-typography-text-font-weight );\" data-contrast=\"auto\">Flexometer, UTM hysteresis (Mullin\u2019s effect), and DMA tan \u03b4 with R\u00b2<\/span><span style=\"color: var( --e-global-color-text ); font-weight: var( --e-global-typography-text-font-weight );\" data-contrast=\"auto\">\u00a0value above 0.900.\u00a0 Also, inverse correlation of RPA tan \u03b4 with rebound resilience is observed. The data indicates that the defined test method utilizing a Premier<\/span> <span style=\"color: var( --e-global-color-text ); font-weight: var( --e-global-typography-text-font-weight );\" data-contrast=\"auto\">RPA is both effective and efficient in measuring HBU properties of cured rubber sample.<\/span><span style=\"color: var( --e-global-color-text ); font-weight: var( --e-global-typography-text-font-weight );\" data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:0,&quot;335559740&quot;:240}\">\u00a0<\/span><\/p><p><span data-contrast=\"auto\">This test procedure utilizing the Premier<\/span> <span data-contrast=\"auto\">RPA shows it is efficient and effective in measuring HBU in a rubber compound. The test sequence in the Premier<\/span> <span data-contrast=\"auto\">RPA involves sample curing and subsequent testing in single sample placement. Total test duration for the rubber compound which cures at 16\u00b0<\/span><span data-contrast=\"auto\">C\/20min is 30 minutes. The <a href=\"https:\/\/www.alpha-technologies.com\/instruments\/premier-rpa\/\">Premier RPA<\/a><\/span> can <span data-contrast=\"auto\">estimate the HBU properties in about half an hour as compared to other laboratory tests which involve sample conditioning time for 18 hours after sample curing.<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:0,&quot;335559740&quot;:240}\">\u00a0<\/span><\/p><p><span data-contrast=\"auto\">To read the <\/span><span data-contrast=\"none\">Technical Report<\/span><span data-contrast=\"auto\"> detailing this test of Premier RPA for measuring HBU, or if you have any questions about this topic, please do not hesitate to <\/span><span data-contrast=\"none\"><a href=\"https:\/\/www.alpha-technologies.com\/contact\/\">contact us<\/a>.<\/span><span 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