{"id":127884,"date":"2026-05-19T14:25:44","date_gmt":"2026-05-19T12:25:44","guid":{"rendered":"https:\/\/www.linseis.com\/unkategorisiert\/eva-ethylene-vinyl-acetate-material-science-properties-and-applications\/"},"modified":"2026-05-21T07:37:17","modified_gmt":"2026-05-21T05:37:17","slug":"eva-ethylene-vinyl-acetate-material-science-properties-and-applications","status":"publish","type":"post","link":"https:\/\/www.linseis.com\/en\/wiki\/eva-ethylene-vinyl-acetate-material-science-properties-and-applications\/","title":{"rendered":"EVA &#8211; ethylene vinyl acetate: material science, properties and applications"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"127884\" class=\"elementor elementor-127884 elementor-127652\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-b75441f e-flex e-con-boxed e-con e-parent\" data-id=\"b75441f\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-35d541b e-con-full e-flex e-con e-child\" data-id=\"35d541b\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-97683da elementor-toc--minimized-on-tablet elementor-widget elementor-widget-table-of-contents\" data-id=\"97683da\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;headings_by_tags&quot;:[&quot;h2&quot;],&quot;exclude_headings_by_selector&quot;:[],&quot;no_headings_message&quot;:&quot;No headings were found on this page.&quot;,&quot;marker_view&quot;:&quot;numbers&quot;,&quot;minimize_box&quot;:&quot;yes&quot;,&quot;minimized_on&quot;:&quot;tablet&quot;,&quot;hierarchical_view&quot;:&quot;yes&quot;,&quot;min_height&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]},&quot;min_height_tablet&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]},&quot;min_height_mobile&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]}}\" data-widget_type=\"table-of-contents.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-toc__header\">\n\t\t\t\t\t\t<h4 class=\"elementor-toc__header-title\">\n\t\t\t\tTable of contents\t\t\t<\/h4>\n\t\t\t\t\t\t\t\t\t\t<div class=\"elementor-toc__toggle-button elementor-toc__toggle-button--expand\" role=\"button\" tabindex=\"0\" aria-controls=\"elementor-toc__97683da\" aria-expanded=\"true\" aria-label=\"Open table of contents\"><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-chevron-down\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M207.029 381.476L12.686 187.132c-9.373-9.373-9.373-24.569 0-33.941l22.667-22.667c9.357-9.357 24.522-9.375 33.901-.04L224 284.505l154.745-154.021c9.379-9.335 24.544-9.317 33.901.04l22.667 22.667c9.373 9.373 9.373 24.569 0 33.941L240.971 381.476c-9.373 9.372-24.569 9.372-33.942 0z\"><\/path><\/svg><\/div>\n\t\t\t\t<div class=\"elementor-toc__toggle-button elementor-toc__toggle-button--collapse\" role=\"button\" tabindex=\"0\" aria-controls=\"elementor-toc__97683da\" aria-expanded=\"true\" aria-label=\"Close table of contents\"><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-chevron-up\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M240.971 130.524l194.343 194.343c9.373 9.373 9.373 24.569 0 33.941l-22.667 22.667c-9.357 9.357-24.522 9.375-33.901.04L224 227.495 69.255 381.516c-9.379 9.335-24.544 9.317-33.901-.04l-22.667-22.667c-9.373-9.373-9.373-24.569 0-33.941L207.03 130.525c9.372-9.373 24.568-9.373 33.941-.001z\"><\/path><\/svg><\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<div id=\"elementor-toc__97683da\" class=\"elementor-toc__body\">\n\t\t\t<div class=\"elementor-toc__spinner-container\">\n\t\t\t\t<svg class=\"elementor-toc__spinner eicon-animation-spin e-font-icon-svg e-eicon-loading\" aria-hidden=\"true\" viewBox=\"0 0 1000 1000\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M500 975V858C696 858 858 696 858 500S696 142 500 142 142 304 142 500H25C25 237 238 25 500 25S975 237 975 500 763 975 500 975Z\"><\/path><\/svg>\t\t\t<\/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-d69a620 elementor-widget elementor-widget-spacer\" data-id=\"d69a620\" 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-f563fb9 elementor-widget elementor-widget-text-editor\" data-id=\"f563fb9\" 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>Ethylene-vinyl acetate (EVA) is a soft, semi-crystalline copolymer that impresses with its high flexibility, excellent damping properties and an exceptionally wide property window &#8211; precisely where classic polyethylenes, rigid thermoplastics or brittle elastomers reach their limits. By specifically adjusting the vinyl acetate (VA) content and the degree of cross-linking, EVA can be adjusted from transparent and soft to structurally stable and highly cushioning. This makes it the first choice in areas such as shoe soles, cushioning elements, solar encapsulants or flexible films.    <sup>[1]<\/sup><\/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-89c0869 elementor-widget elementor-widget-spacer\" data-id=\"89c0869\" 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\t\t\t\n\t\t\t<img class=\"e-image-base e-21f92a0-4b1c716\" \n\t\t\t\t\tdata-interaction-id=\"21f92a0\" \n\t\t \n\t\t data-e-type=\"widget\" data-id=\"21f92a0\"\n\t\t\t\t\t\t\t\t\tid=\"127878\"\n\t\t\t\t\t\t\t\t\t\t\t\tsrc=\"https:\/\/www.linseis.com\/wp-content\/uploads\/2026\/05\/EVA-Polymer_Moosgummi.png\"\n\t\t\t\t\t\t\t\t\t\t\t\twidth=\"1140\"\n\t\t\t\t\t\t\t\t\t\t\t\theight=\"641\"\n\t\t\t\t\t\t\t\t\t\t\t\tsrcset=\"https:\/\/www.linseis.com\/wp-content\/uploads\/2026\/05\/EVA-Polymer_Moosgummi.png 1140w, https:\/\/www.linseis.com\/wp-content\/uploads\/2026\/05\/EVA-Polymer_Moosgummi-300x169.png 300w, https:\/\/www.linseis.com\/wp-content\/uploads\/2026\/05\/EVA-Polymer_Moosgummi-1024x576.png 1024w, https:\/\/www.linseis.com\/wp-content\/uploads\/2026\/05\/EVA-Polymer_Moosgummi-768x432.png 768w\"\n\t\t\t\t\t\t\t\t\t\t\t\talt=\"Colorful EVA foam letters made of flexible polymer foam that illustrate the soft nature, cushioning properties and versatility of EVA in consumer and industrial applications.\"\n\t\t\t\t\t\t\/>\n\t\t\t\t\t<div class=\"elementor-element elementor-element-2779a66 elementor-widget elementor-widget-spacer\" data-id=\"2779a66\" 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-70a90bd elementor-widget elementor-widget-heading\" data-id=\"70a90bd\" 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\">Crystallinity: the key to flexibility and damping<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-36f5a88 elementor-widget elementor-widget-spacer\" data-id=\"36f5a88\" 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-035f339 elementor-widget elementor-widget-text-editor\" data-id=\"035f339\" 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>EVA is a random copolymer of ethylene and vinyl acetate in which the VA content significantly interferes with the crystallization of the polyethylene segment. As the VA content increases, the crystalline content decreases from around 50-60% in pure PE to almost amorphous structures at around 40% VA by weight, making the material significantly softer and more rubbery. <sup>[2]<\/sup><\/p><p>The <a href=\"https:\/\/www.linseis.com\/en\/wiki\/crystallization-and-recrystallization-of-polymers\/\"><strong>crystallinity<\/strong><\/a> controls both stiffness and resilience: higher crystallinity provides mechanical strength, while lower crystallinity leads to pronounced damping and energy absorption &#8211; a key reason why EVA performs so well under cyclic loads, for example in sports shoes or vibration pads. In cross-linked EVA networks (cEVA), the crystalline domains can also be used as physical anchor points, improving strength and dimensional stability even at higher temperatures.   <sup>[1]<\/sup><\/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-ac9afd3 elementor-widget elementor-widget-spacer\" data-id=\"ac9afd3\" 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\t\t\t\n\t\t\t<img class=\"e-image-base e-1883e7c-cc392f0\" \n\t\t\t\t\tdata-interaction-id=\"1883e7c\" \n\t\t \n\t\t data-e-type=\"widget\" data-id=\"1883e7c\" \n\t\t\t\t\t\t\t\t\tid=\"127879\"\n\t\t\t\t\t\t\t\t\t\t\t\tsrc=\"https:\/\/www.linseis.com\/wp-content\/uploads\/2026\/05\/Effect-of-Vinyl-Acetate-Content-on-Crystallinity-and-Properties-of-EVA.png\"\n\t\t\t\t\t\t\t\t\t\t\t\twidth=\"1536\"\n\t\t\t\t\t\t\t\t\t\t\t\theight=\"1024\"\n\t\t\t\t\t\t\t\t\t\t\t\tsrcset=\"https:\/\/www.linseis.com\/wp-content\/uploads\/2026\/05\/Effect-of-Vinyl-Acetate-Content-on-Crystallinity-and-Properties-of-EVA.png 1536w, https:\/\/www.linseis.com\/wp-content\/uploads\/2026\/05\/Effect-of-Vinyl-Acetate-Content-on-Crystallinity-and-Properties-of-EVA-300x200.png 300w, https:\/\/www.linseis.com\/wp-content\/uploads\/2026\/05\/Effect-of-Vinyl-Acetate-Content-on-Crystallinity-and-Properties-of-EVA-1024x683.png 1024w, https:\/\/www.linseis.com\/wp-content\/uploads\/2026\/05\/Effect-of-Vinyl-Acetate-Content-on-Crystallinity-and-Properties-of-EVA-768x512.png 768w\"\n\t\t\t\t\t\t\t\t\t\t\t\talt=\"Scientific infographic showing how increasing vinyl acetate (VA) content affects EVA crystallinity, flexibility, damping behavior, stiffness, and mechanical properties from rigid semicrystalline structures to soft amorphous materials.\"\n\t\t\t\t\t\t\/>\n\t\t\t\t\t<div class=\"elementor-element elementor-element-72b4575 elementor-widget elementor-widget-spacer\" data-id=\"72b4575\" 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-1b982d6 elementor-widget elementor-widget-heading\" data-id=\"1b982d6\" 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\">Melting point and thermal processability<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-92f5197 elementor-widget elementor-widget-spacer\" data-id=\"92f5197\" 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-5df331d elementor-widget elementor-widget-text-editor\" data-id=\"5df331d\" 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 <a href=\"https:\/\/www.linseis.com\/en\/wiki\/melting-point-crystallization-and-glass-transition-in-polymers\/\"><strong>melting point<\/strong><\/a> of EVA is directly linked to the crystallinity and thus to the VA content. While crystalline, PE-rich EVA grades have melting peaks in the range of around 110-120 \u00b0C, the melting range shifts to a wider, significantly lower interval of around 40-60 \u00b0C at high VA contents (around 40 wt.%). <sup>[2]<\/sup> <\/p><p>In practice, this means that EVA grades with a moderate VA content combine a sufficiently high melting point for thermal resilience with good processability in extrusion, injection molding or foaming processes. In cross-linked EVA systems, the classic melting point becomes less important as the chemical cross-linking prevents complete flow &#8211; the thermal transitions, however, remain in the <a href=\"https:\/\/www.linseis.com\/en\/instruments\/differential-scanning-calorimeter-dsc\/\"><strong>DSC signal<\/strong><\/a> visible. <sup>[1]<\/sup> <\/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-c348815 elementor-widget elementor-widget-spacer\" data-id=\"c348815\" 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-95aac46 elementor-widget elementor-widget-heading\" data-id=\"95aac46\" 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\">Glass transition temperature and attenuation behavior<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6dd2e47 elementor-widget elementor-widget-spacer\" data-id=\"6dd2e47\" 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-a18f69c elementor-widget elementor-widget-text-editor\" data-id=\"a18f69c\" 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 <a href=\"https:\/\/www.linseis.com\/en\/wiki\/glass-transition-temperature\/\"><strong>glass transition temperature<\/strong><\/a> (<sub>Tg<\/sub>) of EVA is typically between about -25 \u00b0C and -30 \u00b0C, depending on VA content and network morphology, whereby the influence of VA content on <sub>Tg<\/sub> is comparatively low. Dynamic mechanical analyses (DMA) also show two relaxation processes: a deep relaxation around approx. -90 \u00b0C, which is assigned to amorphous PE segments, and a further relaxation between approx. -50 \u00b0C and +30 \u00b0C with a pronounced damping maximum between -32 \u00b0C and -3 \u00b0C. <sup>[1]<\/sup> <\/p><p>These relaxation processes are decisive for the damping behavior: In the area of the loss factor maximum, EVA shows particularly high energy absorption and vibration damping &#8211; a key reason for its use in sports shoes, protective padding and acoustic applications. If components are specifically operated in the temperature window of the main relaxation, damping can be maximized without having to switch to separate elastomers.   <sup>[5]<\/sup><\/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-3b379d1 elementor-widget elementor-widget-spacer\" data-id=\"3b379d1\" 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\t\t\t\n\t\t\t<img class=\"e-image-base e-04f427c-617bc41\" \n\t\t\t\t\tdata-interaction-id=\"04f427c\" \n\t\t \n\t\t data-e-type=\"widget\" data-id=\"04f427c\" \n\t\t\t\t\t\t\t\t\tid=\"127880\"\n\t\t\t\t\t\t\t\t\t\t\t\tsrc=\"https:\/\/www.linseis.com\/wp-content\/uploads\/2026\/05\/Energy-Absorption-and-Recovery-Behavior-of-EVA-Foam.png\"\n\t\t\t\t\t\t\t\t\t\t\t\twidth=\"1536\"\n\t\t\t\t\t\t\t\t\t\t\t\theight=\"1024\"\n\t\t\t\t\t\t\t\t\t\t\t\tsrcset=\"https:\/\/www.linseis.com\/wp-content\/uploads\/2026\/05\/Energy-Absorption-and-Recovery-Behavior-of-EVA-Foam.png 1536w, https:\/\/www.linseis.com\/wp-content\/uploads\/2026\/05\/Energy-Absorption-and-Recovery-Behavior-of-EVA-Foam-300x200.png 300w, https:\/\/www.linseis.com\/wp-content\/uploads\/2026\/05\/Energy-Absorption-and-Recovery-Behavior-of-EVA-Foam-1024x683.png 1024w, https:\/\/www.linseis.com\/wp-content\/uploads\/2026\/05\/Energy-Absorption-and-Recovery-Behavior-of-EVA-Foam-768x512.png 768w\"\n\t\t\t\t\t\t\t\t\t\t\t\talt=\"Scientific infographic illustrating the compression, energy absorption, and recovery behavior of EVA foam, including cellular foam structure deformation, damping performance, resilience, and typical industrial applications.\"\n\t\t\t\t\t\t\/>\n\t\t\t\t\t<div class=\"elementor-element elementor-element-0e0a422 elementor-widget elementor-widget-spacer\" data-id=\"0e0a422\" 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-1632185 elementor-widget elementor-widget-heading\" data-id=\"1632185\" 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\">Thermal stability and degradation mechanisms<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d6035da elementor-widget elementor-widget-spacer\" data-id=\"d6035da\" 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-cc80029 elementor-widget elementor-widget-text-editor\" data-id=\"cc80029\" 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><a href=\"https:\/\/www.linseis.com\/en\/instruments\/tga-thermogravimetry\/\"><strong>Thermogravimetric<\/strong><\/a> investigations show a two-stage thermal degradation for EVA: First, <strong>deacetylation<\/strong> of the VA segments occurs between approx. 300-410 \u00b0C, followed by <strong>chain degradation of the ethylene backbone<\/strong> between approx. 420-510 \u00b0C.<\/p><p>This mechanism explains why EVA can be processed safely at moderate processing temperatures (typically below 250 \u00b0C), but tends to release acetic acid and cause structural degradation when exposed to excessive thermal stress.  <sup>[1]<\/sup><\/p><p>The <a href=\"https:\/\/www.linseis.com\/en\/wiki\/measurement-of-thermal-stability\/\"><strong>thermal stability<\/strong><\/a> can be significantly improved by using suitable stabilizers and cross-linking, which enables use in photovoltaic laminates, cable insulation and technical foams at elevated temperatures. In dynamically thermomechanically stressed applications, cross-linked EVA grades ensure stable module and damping properties over an extended temperature range.   <sup>[4]<\/sup><\/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-c7225d7 elementor-widget elementor-widget-spacer\" data-id=\"c7225d7\" 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-2c36fea elementor-widget elementor-widget-heading\" data-id=\"2c36fea\" 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\">Chemical, UV and mechanical resistance<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5093464 elementor-widget elementor-widget-spacer\" data-id=\"5093464\" 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-2b2fdfa elementor-widget elementor-widget-text-editor\" data-id=\"2b2fdfa\" 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>Chemically, EVA shows good resistance to water, many polar media and aqueous solutions; there are limitations to strongly oxidizing chemicals or certain organic solvents. Compared to pure <a href=\"https:\/\/www.linseis.com\/en\/applications\/polymers\/lfa-500-polyethylene-pe-thermal-diffusivity\/\"><strong>PE<\/strong><\/a> adhesion and compatibility with fillers &#8211; an important advantage for compounds, adhesives and composite systems. <sup>[4]<\/sup> <\/p><p>Under UV exposure, ageing processes such as yellowing, brittleness and changes in mechanical properties occur, particularly with prolonged exposure. These effects are strongly influenced by the additive package: formulated EVA grades with suitable UV absorbers and antioxidants achieve significantly improved long-term resistance and are therefore suitable for outdoor applications such as PV modules, outdoor soles and seals.   <sup>[3]<\/sup><\/p><p>Mechanically, EVA is characterized by high impact strength, good tear resistance and excellent resilience, especially with medium to high VA contents and\/or cross-linking. The combination of a soft matrix and cross-linked structures enables simultaneous damping and dimensional stability &#8211; a property profile that other commodity thermoplastics often do not cover.   <sup>[4]<\/sup><\/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-ab69d4f elementor-widget elementor-widget-spacer\" data-id=\"ab69d4f\" 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-e8790b5 elementor-widget elementor-widget-heading\" data-id=\"e8790b5\" 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\">EVA variants: From low VA content to hotmelt<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3b81415 elementor-widget elementor-widget-spacer\" data-id=\"3b81415\" 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-5d6b329 elementor-widget elementor-widget-text-editor\" data-id=\"5d6b329\" 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 variability of EVA is based on three central control variables: VA content, molecular weight distribution and degree of crosslinking. [ <sup>4]<\/sup> Typical grades can be roughly divided into three groups: EVA with a low VA content (approx. 4-10 %) behaves more like PE, is semi-crystalline and offers a good compromise between strength and flexibility. Medium VA contents (approx. 10-28 %) provide highly flexibilized materials with improved transparency and damping &#8211; typical qualities for films and foams. [ <sup>2]<\/sup> High VA contents (\u2265 30-40 %) result in almost amorphous, rubber-like materials with very good energy absorption and adhesion, which are often used in adhesive systems. <sup>[5]<\/sup> <\/p><p>Chemical cross-linking, for example using peroxide, creates cEVA networks with increased thermal dimensional stability, higher modulus and improved long-term durability &#8211; a key design principle for EVA encapsulants in photovoltaic modules. EVA blends with polyolefins or biopolymers such as <a href=\"https:\/\/www.linseis.com\/en\/wiki\/polylactide-pla-from-bioplastic-to-high-tech-material-with-a-sustainable-future\/\"><strong>PLA<\/strong><\/a> reduce brittleness and specifically increase toughness and damping without fundamentally changing the processing concept. <\/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-49c8dc2 elementor-widget elementor-widget-spacer\" data-id=\"49c8dc2\" 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-6d63769 elementor-widget elementor-widget-heading\" data-id=\"6d63769\" 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\">Typical fields of application: Where EVA shows its strengths<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d5a1734 elementor-widget elementor-widget-spacer\" data-id=\"d5a1734\" 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-8bd1831 elementor-widget elementor-widget-text-editor\" data-id=\"8bd1831\" 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 combination of a soft, semi-crystalline structure, low <sub>Tg<\/sub>, adjustable cross-linking and good adhesion makes EVA the preferred material in damping and flexible applications. <sup>[5]<\/sup><\/p><p>Shoe soles and insoles: EVA foams offer light weight, high energy absorption and low-fatigue cushioning &#8211; especially in sports shoes and orthopaedic insoles. Sports and leisure articles such as mats, protective pads and swimming aids benefit from the soft feel, pleasant compressibility and robust resilience. Vibration and oscillation dampers in machines, vehicles or electronics utilize the wide damping window of EVA as well as the possible combination of thermal stability and flexibility.    <sup>[5]<\/sup><\/p><p>Photovoltaic encapsulants made of cross-linked EVA encapsulate solar cells, protect against moisture, mechanical stress and UV light and ensure defined module elasticity. [ <sup>4]<\/sup> Cable insulation utilizes the electrical insulation capability, flexibility at low temperatures and chemical resistance of EVA. EVA-based hotmelt adhesives combine adhesion, toughness and processing safety and are widely used in the packaging, wood and construction sectors.   <sup>[5]<\/sup><\/p><p>In many of these scenarios, low temperature dependency of damping, low <sub>Tg<\/sub> and adaptable cross-linking determine whether components still function reliably even after millions of load cycles &#8211; and this is where EVA shows its strengths over more brittle thermoplastics or elastomers that are difficult to process. <sup>[5]<\/sup><\/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-a477b16 elementor-widget elementor-widget-spacer\" data-id=\"a477b16\" 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-2f6d72f elementor-widget elementor-widget-heading\" data-id=\"2f6d72f\" 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\">Instrumental characterization of EVA<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c43d94c elementor-widget elementor-widget-spacer\" data-id=\"c43d94c\" 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\t\t\t\n\t\t\t<img class=\"e-image-base e-06deb5a-c300e16\" \n\t\t\t\t\tdata-interaction-id=\"06deb5a\" \n\t\t \n\t\t data-e-type=\"widget\" data-id=\"06deb5a\" \n\t\t\t\t\t\t\t\t\tid=\"127881\"\n\t\t\t\t\t\t\t\t\t\t\t\tsrc=\"https:\/\/www.linseis.com\/wp-content\/uploads\/2026\/05\/EVA-Polymer_Simultane-Thermische-Analyse.png\"\n\t\t\t\t\t\t\t\t\t\t\t\twidth=\"1140\"\n\t\t\t\t\t\t\t\t\t\t\t\theight=\"641\"\n\t\t\t\t\t\t\t\t\t\t\t\tsrcset=\"https:\/\/www.linseis.com\/wp-content\/uploads\/2026\/05\/EVA-Polymer_Simultane-Thermische-Analyse.png 1140w, https:\/\/www.linseis.com\/wp-content\/uploads\/2026\/05\/EVA-Polymer_Simultane-Thermische-Analyse-300x169.png 300w, https:\/\/www.linseis.com\/wp-content\/uploads\/2026\/05\/EVA-Polymer_Simultane-Thermische-Analyse-1024x576.png 1024w, https:\/\/www.linseis.com\/wp-content\/uploads\/2026\/05\/EVA-Polymer_Simultane-Thermische-Analyse-768x432.png 768w\"\n\t\t\t\t\t\t\t\t\t\t\t\talt=\"Simultaneous Thermal Analysis (STA) instruments for characterizing thermal stability, decomposition behavior, crystallinity, and phase transitions of EVA polymers and advanced polymer materials.\"\n\t\t\t\t\t\t\/>\n\t\t\t\t\t<div class=\"elementor-element elementor-element-9e11adc elementor-widget elementor-widget-spacer\" data-id=\"9e11adc\" 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-3d70752 elementor-widget elementor-widget-text-editor\" data-id=\"3d70752\" 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>For laboratory users who want to optimize EVA grades specifically for flexibility, damping and thermal resistance, comprehensive thermal analyses are essential. With the Simultaneous Thermal Analysis (<a href=\"https:\/\/www.linseis.com\/en\/instruments\/thermal-analysis\/simultaneous-thermal-analyzer-tga-dsc\/\"><strong>STA, TGA-DSC<\/strong><\/a>), melting processes, crystallinity, glass transitions and two-stage thermal decomposition (deacetylation, backbone degradation) can be determined and directly correlated in a single measurement run. In addition, DSC systems offer a high-resolution analysis of melting and crystallization behaviour, <sub>Tg<\/sub> and enthalpies, while dilatometry and thermophysical measurement methods support the design of EVA components with regard to thermal expansion and heat transfer. On this basis, researchers and engineers can precisely adapt EVA formulations to their application requirements &#8211; in terms of flexibility and damping as well as long-term and process stability.   <\/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-422900a elementor-widget elementor-widget-spacer\" data-id=\"422900a\" 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-d311197 elementor-widget elementor-widget-heading\" data-id=\"d311197\" 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\">Bibliography<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-bc5a2c1 elementor-widget elementor-widget-spacer\" data-id=\"bc5a2c1\" 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-7ec0ae5 elementor-widget elementor-widget-text-editor\" data-id=\"7ec0ae5\" 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>[1] Li, G. et al. (2019): &#8220;The thermal and mechanical properties of poly(ethylene-co-vinyl acetate) copolymers and their crosslinked analogs.&#8221; <em>Polymers.<\/em> PMC6631310. <\/p><p><a href=\"https:\/\/pmc.ncbi.nlm.nih.gov\/articles\/PMC6631310\/\" target=\"_blank\" rel=\"noopener\">https:\/\/pmc.ncbi.nlm.nih.gov\/articles\/PMC6631310\/<\/a><\/p><p>[2] G\u00e9tenga, C. et al. (2019): &#8220;Viscoelasticity evolution of ethylene-vinyl acetate copolymers.&#8221; <em>Chemical Engineering Transactions,<\/em> Vol. 74, pp. 183-188.  <\/p><p><a href=\"https:\/\/www.aidic.it\/cet\/19\/74\/183.pdf\" target=\"_blank\" rel=\"noopener\">https:\/\/www.aidic.it\/cet\/19\/74\/183.pdf<\/a><\/p><p>[3] Jin, J. et al. (2010): &#8220;UV aging behavior of ethylene-vinyl acetate (EVA) copolymers with different vinyl acetate contents.&#8221; <em>Polymer Degradation and Stability.<\/em> <\/p><p><a href=\"https:\/\/www.sciencedirect.com\/science\/article\/abs\/pii\/S0141391010000911\" target=\"_blank\" rel=\"noopener\">https:\/\/www.sciencedirect.com\/science\/article\/abs\/pii\/S0141391010000911<\/a><\/p><p>[4] Renner, K. et al. (2022): &#8220;Comparison of the crosslinking kinetics of UV-transparent EVA and POE encapsulants.&#8221; <em>Polymers.<\/em> PMC9003555. <\/p><p><a href=\"https:\/\/pmc.ncbi.nlm.nih.gov\/articles\/PMC9003555\/\" target=\"_blank\" rel=\"noopener\">https:\/\/pmc.ncbi.nlm.nih.gov\/articles\/PMC9003555\/<\/a><\/p><p>[5] Sinocure Chemical (2024): &#8220;Applications, benefits and strategies to prevent aging and yellowing in cross-linked EVAs.&#8221;<\/p><p><a href=\"https:\/\/www.sinocurechem.com\/2024\/06\/25\/applications-benefits-and-strategies-for-preventing-aging-and-yellowing-of-crosslinked-evas\/\" target=\"_blank\" rel=\"noopener\">https:\/\/www.sinocurechem.com\/2024\/06\/25\/applications-benefits-and-strategies-for-preventing-aging-and-yellowing-of-crosslinked-evas\/<\/a><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Ethylene-vinyl acetate (EVA) is a soft, semi-crystalline copolymer that impresses with its high flexibility, excellent damping properties and an exceptionally wide property window &#8211; precisely where classic polyethylenes, rigid thermoplastics or brittle elastomers reach their limits. By specifically adjusting the vinyl acetate content (VA) and the degree of cross-linking, EVA can be adjusted from transparent-soft to structurally stable and highly damping.   <\/p>\n","protected":false},"author":3,"featured_media":127882,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[106],"tags":[],"class_list":["post-127884","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-wiki"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.linseis.com\/en\/wp-json\/wp\/v2\/posts\/127884","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.linseis.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.linseis.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.linseis.com\/en\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/www.linseis.com\/en\/wp-json\/wp\/v2\/comments?post=127884"}],"version-history":[{"count":0,"href":"https:\/\/www.linseis.com\/en\/wp-json\/wp\/v2\/posts\/127884\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.linseis.com\/en\/wp-json\/wp\/v2\/media\/127882"}],"wp:attachment":[{"href":"https:\/\/www.linseis.com\/en\/wp-json\/wp\/v2\/media?parent=127884"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.linseis.com\/en\/wp-json\/wp\/v2\/categories?post=127884"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.linseis.com\/en\/wp-json\/wp\/v2\/tags?post=127884"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}