{"id":22493,"date":"2024-07-17T07:43:15","date_gmt":"2024-07-17T05:43:15","guid":{"rendered":"https:\/\/www.linseis.com\/polyethyleneterephthalate-pet-an-in-depth-investigation\/"},"modified":"2024-09-13T15:58:23","modified_gmt":"2024-09-13T13:58:23","slug":"polyethyleneterephthalate-pet-an-in-depth-investigation","status":"publish","type":"post","link":"https:\/\/www.linseis.com\/en\/wiki\/polyethyleneterephthalate-pet-an-in-depth-investigation\/","title":{"rendered":"Polyethyleneterephthalate (PET): An in-depth investigation"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"22493\" class=\"elementor elementor-22493 elementor-8388\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-9eb8745 e-flex e-con-boxed e-con e-parent\" data-id=\"9eb8745\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-030ae6e elementor-toc--minimized-on-tablet elementor-widget elementor-widget-table-of-contents\" data-id=\"030ae6e\" 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;marker_view&quot;:&quot;numbers&quot;,&quot;no_headings_message&quot;:&quot;No headings were found on this page.&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__030ae6e\" 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__030ae6e\" 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__030ae6e\" 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-8a9139e elementor-widget elementor-widget-heading\" data-id=\"8a9139e\" 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 of PET<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ffaef65 elementor-widget elementor-widget-text-editor\" data-id=\"ffaef65\" 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><strong>Polyethylene<\/strong> <strong>Terephthalate<\/strong> <strong>(PET)<\/strong>, commonly known as PET, holds a significant place in various industrial and commercial productions.<\/p><p>This thermoplastic reveals variable <a href=\"https:\/\/www.linseis.com\/en\/wiki\/crystallization-and-recrystallization-of-polymers\/\"><strong>crystallinity<\/strong><\/a>, which largely determines its characteristic properties. This versatile plastic can range from a stable, solid form to a supple and flexible nature.<\/p><p>The flexibility in the structural composition of <strong>PET<\/strong> allows its use across a broad spectrum of product categories. Notably, it is used in the manufacturing of beverage bottles, leveraging the material\u2019s inherent strength and translucent nature.<\/p><p>A high proportion of crystalline structures in <strong>PET<\/strong> provides these bottles with the necessary robustness to safely store liquids while maintaining ease of handling in everyday use. These properties are crucial for a sustainable packaging solution that meets the demands of both product integrity and consumer convenience.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-cb5c309 e-con-full e-flex e-con e-child\" data-id=\"cb5c309\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-8f88511 e-con-full e-flex e-con e-child\" data-id=\"8f88511\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-96556fa elementor-widget elementor-widget-image\" data-id=\"96556fa\" 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 fetchpriority=\"high\" decoding=\"async\" width=\"800\" height=\"450\" src=\"https:\/\/www.linseis.com\/wp-content\/uploads\/2024\/07\/11-1024x576.png\" class=\"attachment-large size-large wp-image-16346\" alt=\"\" srcset=\"https:\/\/www.linseis.com\/wp-content\/uploads\/2024\/07\/11-1024x576.png 1024w, https:\/\/www.linseis.com\/wp-content\/uploads\/2024\/07\/11-300x169.png 300w, https:\/\/www.linseis.com\/wp-content\/uploads\/2024\/07\/11-768x432.png 768w, https:\/\/www.linseis.com\/wp-content\/uploads\/2024\/07\/11.png 1140w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\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<\/div>\n\t\t<div class=\"elementor-element elementor-element-97f0f26 e-con-full e-flex e-con e-child\" data-id=\"97f0f26\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-54dd63e elementor-widget elementor-widget-image\" data-id=\"54dd63e\" 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=\"800\" height=\"450\" src=\"https:\/\/www.linseis.com\/wp-content\/uploads\/2024\/07\/10-1024x576.png\" class=\"attachment-large size-large wp-image-19567\" alt=\"\" srcset=\"https:\/\/www.linseis.com\/wp-content\/uploads\/2024\/07\/10-1024x576.png 1024w, https:\/\/www.linseis.com\/wp-content\/uploads\/2024\/07\/10-300x169.png 300w, https:\/\/www.linseis.com\/wp-content\/uploads\/2024\/07\/10-768x432.png 768w, https:\/\/www.linseis.com\/wp-content\/uploads\/2024\/07\/10.png 1140w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\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<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9bfc116 elementor-widget elementor-widget-heading\" data-id=\"9bfc116\" 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 enthalpy of PET<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f3a894e elementor-widget elementor-widget-text-editor\" data-id=\"f3a894e\" 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\/phase-transition-of-a-substance-melting\/\"><strong>melting<\/strong> <strong>point<\/strong> <strong>of<\/strong> <strong>PET<\/strong><\/a> generally ranges between 250\u00b0C and 260\u00b0C, which is particularly utilized in the production of textile fibers.<\/p><p>Textiles made of <strong>PET<\/strong> are favored for their light weight and high tensile strength. The fine structure and durability of <strong>PET<\/strong> contribute to creating garments that are both breathable and long-lasting.<\/p><p>To determine the <strong>melting<\/strong> <strong>point<\/strong>, a <a href=\"https:\/\/www.linseis.com\/en\/products\/dsc-differential-scanning-calorimetry\/\"><strong>Differential<\/strong> <strong>Scanning<\/strong> <strong>Calorimeter<\/strong> <strong>(DSC)<\/strong><\/a> is typically used.<\/p><p>For precise quantification of <strong>crystallinity<\/strong> and <a href=\"https:\/\/www.linseis.com\/en\/properties\/enthalpy\/\"><strong>melting<\/strong> <strong>enthalpy<\/strong><\/a>, the specialized and patented <strong>Chip-DSC<\/strong> is employed.<\/p><p>Near their <strong>melting<\/strong> point of about 255\u00b0C, <strong>PET<\/strong> pellets are extruded into fibers which are then spun into yarns. Notably, although both the pellets and the resulting fibers share the same <strong>melting point,<\/strong> the textile fibers acquire their unique properties through the extrusion and spinning processes.<\/p><p>Post-spinning, these fibers gain high toughness and strength, enabling the production of durable yet lightweight textiles such as sportswear, which are both breathable and resilient to the stresses of intense physical activity.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-1e7d97c e-con-full e-flex e-con e-child\" data-id=\"1e7d97c\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-e53ff6a e-con-full e-flex e-con e-child\" data-id=\"e53ff6a\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-3c88d58 elementor-widget elementor-widget-image\" data-id=\"3c88d58\" 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=\"800\" height=\"450\" src=\"https:\/\/www.linseis.com\/wp-content\/uploads\/2024\/07\/12-1024x576.png\" class=\"attachment-large size-large wp-image-16371\" alt=\"\" srcset=\"https:\/\/www.linseis.com\/wp-content\/uploads\/2024\/07\/12-1024x576.png 1024w, https:\/\/www.linseis.com\/wp-content\/uploads\/2024\/07\/12-300x169.png 300w, https:\/\/www.linseis.com\/wp-content\/uploads\/2024\/07\/12-768x432.png 768w, https:\/\/www.linseis.com\/wp-content\/uploads\/2024\/07\/12.png 1140w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\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<\/div>\n\t\t<div class=\"elementor-element elementor-element-5871a10 e-con-full e-flex e-con e-child\" data-id=\"5871a10\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-17612ce elementor-widget elementor-widget-image\" data-id=\"17612ce\" 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 loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"450\" src=\"https:\/\/www.linseis.com\/wp-content\/uploads\/2024\/07\/13-1024x576.png\" class=\"attachment-large size-large wp-image-19574\" alt=\"\" srcset=\"https:\/\/www.linseis.com\/wp-content\/uploads\/2024\/07\/13-1024x576.png 1024w, https:\/\/www.linseis.com\/wp-content\/uploads\/2024\/07\/13-300x169.png 300w, https:\/\/www.linseis.com\/wp-content\/uploads\/2024\/07\/13-768x432.png 768w, https:\/\/www.linseis.com\/wp-content\/uploads\/2024\/07\/13.png 1140w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\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<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-227b6c4 elementor-widget elementor-widget-heading\" data-id=\"227b6c4\" 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\">Diversity and consistency of PET<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3112811 elementor-widget elementor-widget-text-editor\" data-id=\"3112811\" 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><strong>PET<\/strong> excels in diversity and durability. Fine-tuning processing parameters can optimize the mechanical and optical properties of the final product.<\/p>\n<p>Its versatility allows for the creation of a variety of products, from robust to flexible structures.<\/p>\n<p>An example of this are <strong>PET<\/strong> films: They are resistant to physical stress and various environmental influences, which is why they are often used in packaging or as screen protector films.<\/p>\n<p>Their resilience and longevity make them an economical solution of high quality.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-f5b9810 e-con-full e-flex e-con e-child\" data-id=\"f5b9810\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-9d4761a e-con-full e-flex e-con e-child\" data-id=\"9d4761a\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-cd7a0d4 elementor-widget elementor-widget-image\" data-id=\"cd7a0d4\" 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 loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"450\" src=\"https:\/\/www.linseis.com\/wp-content\/uploads\/2024\/07\/9-1024x576.png\" class=\"attachment-large size-large wp-image-16381\" alt=\"\" srcset=\"https:\/\/www.linseis.com\/wp-content\/uploads\/2024\/07\/9-1024x576.png 1024w, https:\/\/www.linseis.com\/wp-content\/uploads\/2024\/07\/9-300x169.png 300w, https:\/\/www.linseis.com\/wp-content\/uploads\/2024\/07\/9-768x432.png 768w, https:\/\/www.linseis.com\/wp-content\/uploads\/2024\/07\/9.png 1140w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\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<\/div>\n\t\t<div class=\"elementor-element elementor-element-f891ff5 e-con-full e-flex e-con e-child\" data-id=\"f891ff5\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-8d95817 elementor-widget elementor-widget-image\" data-id=\"8d95817\" 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 loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"450\" src=\"https:\/\/www.linseis.com\/wp-content\/uploads\/2024\/07\/14-1024x576.png\" class=\"attachment-large size-large wp-image-19584\" alt=\"\" srcset=\"https:\/\/www.linseis.com\/wp-content\/uploads\/2024\/07\/14-1024x576.png 1024w, https:\/\/www.linseis.com\/wp-content\/uploads\/2024\/07\/14-300x169.png 300w, https:\/\/www.linseis.com\/wp-content\/uploads\/2024\/07\/14-768x432.png 768w, https:\/\/www.linseis.com\/wp-content\/uploads\/2024\/07\/14.png 1140w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\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<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c85ce21 elementor-widget elementor-widget-heading\" data-id=\"c85ce21\" 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 glass transition temperature of PET<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-224c225 elementor-widget elementor-widget-text-editor\" data-id=\"224c225\" 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\/measurement-of-thermal-stability\/\"><strong>thermal<\/strong> <strong>stability<\/strong><\/a> <strong>of<\/strong> <strong>PET<\/strong> allows its use in numerous products. For instance, <strong>PET<\/strong> films maintain their shape and transparency across varying temperatures, making them an ideal choice for packaging, especially for food items.<\/p><p>Thanks to this temperature resistance, <strong>PET<\/strong> films can be used in both cool shelves and warm environments without losing clarity or shrinking. They are also chemically resistant, so they don\u2019t react with the packaged food or cause undesirable taste or odor changes.<\/p><p>Because of the <strong>thermal<\/strong> <strong>stability<\/strong>, <strong>PET<\/strong> films are also employed in technical applications. For example, in the electronics industry, they are used as insulating materials or substrates for flexible circuits. Their ability to withstand high temperatures without deforming makes them particularly valuable for such critical applications.<\/p><p>In the automotive industry, <strong>PET<\/strong> films are used for window films due to their excellent thermal properties and UV resistance. They protect occupants from harmful UV radiation and simultaneously reduce the interior temperature, which decreases the need for air conditioning and thus optimizes fuel consumption.<\/p><p>Finally, <strong>PET<\/strong> films are also sought after in solar technology. Here, they serve as protective and cover films for photovoltaic modules, shielding the solar cells from the elements while still allowing sunlight to pass through efficiently.<\/p><p>The glass transition temperature of <strong>PET<\/strong> typically ranges between 70\u00b0C and 80\u00b0C, meaning it remains stable over a broad temperature range.<\/p><p>A pertinent example is <strong>PET<\/strong> packaging films that withstand temperature fluctuations without becoming brittle or losing their flexibility. The <strong>Chip-DSC<\/strong> also allows for the precise determination of the temperature at which the glass transition occurs.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-716d24e e-con-full e-flex e-con e-child\" data-id=\"716d24e\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-a9d25b9 e-con-full e-flex e-con e-child\" data-id=\"a9d25b9\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-db4dbc0 elementor-widget elementor-widget-image\" data-id=\"db4dbc0\" 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 loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"450\" src=\"https:\/\/www.linseis.com\/wp-content\/uploads\/2024\/07\/17-1024x576.png\" class=\"attachment-large size-large wp-image-16391\" alt=\"\" srcset=\"https:\/\/www.linseis.com\/wp-content\/uploads\/2024\/07\/17-1024x576.png 1024w, https:\/\/www.linseis.com\/wp-content\/uploads\/2024\/07\/17-300x169.png 300w, https:\/\/www.linseis.com\/wp-content\/uploads\/2024\/07\/17-768x432.png 768w, https:\/\/www.linseis.com\/wp-content\/uploads\/2024\/07\/17.png 1140w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\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<\/div>\n\t\t<div class=\"elementor-element elementor-element-a0d70da e-con-full e-flex e-con e-child\" data-id=\"a0d70da\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-62a8403 elementor-widget elementor-widget-image\" data-id=\"62a8403\" 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 loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"450\" src=\"https:\/\/www.linseis.com\/wp-content\/uploads\/2024\/07\/15-1024x576.png\" class=\"attachment-large size-large wp-image-19591\" alt=\"\" srcset=\"https:\/\/www.linseis.com\/wp-content\/uploads\/2024\/07\/15-1024x576.png 1024w, https:\/\/www.linseis.com\/wp-content\/uploads\/2024\/07\/15-300x169.png 300w, https:\/\/www.linseis.com\/wp-content\/uploads\/2024\/07\/15-768x432.png 768w, https:\/\/www.linseis.com\/wp-content\/uploads\/2024\/07\/15.png 1140w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\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<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e315f33 elementor-widget elementor-widget-heading\" data-id=\"e315f33\" 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\">Different types of PET<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-26b9ead elementor-widget__width-initial elementor-widget elementor-widget-text-editor\" data-id=\"26b9ead\" 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 terms of the various types of\u00a0<strong>PET<\/strong>, differences in\u00a0<strong>crystallinity<\/strong>\u00a0and additives lead to products with diverse physical properties.<\/p>\n\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-6d2a6b0 elementor-widget__width-initial elementor-widget elementor-widget-text-editor\" data-id=\"6d2a6b0\" 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=\"text-decoration: underline;\">For example:<\/span><\/p>\n<ul>\n<li><strong>Bottles:<\/strong>\u00a0Often made from crystalline PET, known for its transparency and strength.<\/li>\n<li><strong>Electronic components:<\/strong>\u00a0Amorphous PET, which is valued for its shape stability and electrical insulation properties.<\/li>\n<li><strong>Sportswear:<\/strong>\u00a0Elastic PET, often used for breathable yet durable clothing.<\/li>\n<\/ul>\n\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-9fbf0b6 elementor-widget elementor-widget-heading\" data-id=\"9fbf0b6\" 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\">Application<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-408c60a elementor-widget__width-initial elementor-widget elementor-widget-image\" data-id=\"408c60a\" 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=\"800\" height=\"550\" src=\"https:\/\/www.linseis.com\/wp-content\/uploads\/2024\/07\/Chip-DSC-PET-Sample-2-1024x704.png\" class=\"attachment-large size-large wp-image-25335\" alt=\"\" srcset=\"https:\/\/www.linseis.com\/wp-content\/uploads\/2024\/07\/Chip-DSC-PET-Sample-2-1024x704.png 1024w, https:\/\/www.linseis.com\/wp-content\/uploads\/2024\/07\/Chip-DSC-PET-Sample-2-300x206.png 300w, https:\/\/www.linseis.com\/wp-content\/uploads\/2024\/07\/Chip-DSC-PET-Sample-2-768x528.png 768w, https:\/\/www.linseis.com\/wp-content\/uploads\/2024\/07\/Chip-DSC-PET-Sample-2-1536x1056.png 1536w, https:\/\/www.linseis.com\/wp-content\/uploads\/2024\/07\/Chip-DSC-PET-Sample-2-2048x1408.png 2048w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">App. Nr. 02-011-002 Chip-DSC 10 \u2013 Polymere \u2013 PET<\/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-af91780 elementor-widget elementor-widget-text-editor\" data-id=\"af91780\" 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>As an example, a <strong>PET<\/strong> <strong>(polyethylenetherephtalate)<\/strong> granulate was heated, quench cooled to freeze the amorphous state and afterwards analyzed by <strong>Chip-DSC<\/strong> with a linear heating rate of 50 K\/min.<\/p>\n<p>The resulting curve shows a significant glass transition around 80\u00b0C, followed by a cold <strong>crystallization<\/strong> of the amorphous parts starting around 148\u00b0C and a <strong>melting<\/strong> <strong>peak<\/strong> at 230\u00b0C.<\/p>\n<p>The <strong>enthalpy<\/strong> of the cold <strong>crystallization<\/strong> peak can be used to determine the degree of <strong>crystallinity<\/strong> by comparison with the <strong>enthalpy<\/strong> of pure crystalline <strong>PET<\/strong>. Depending on the thermal history of the sample, the grade of crystallinity changes and therefore can be used as indicator for the history and mechanical behavior of the polymer.<\/p>\n\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-d240cb5 elementor-widget elementor-widget-heading\" data-id=\"d240cb5\" 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\">Conclusion<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-27d0ae9 elementor-widget elementor-widget-text-editor\" data-id=\"27d0ae9\" 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>Overall, <strong>PET<\/strong> demonstrates impressive diversity due to its varying <strong>crystallinity<\/strong>, <strong>thermal<\/strong> <strong>stability<\/strong> and <strong>specific<\/strong> <strong>melting<\/strong> and <strong>glass<\/strong> <strong>transition<\/strong> <strong>temperatures<\/strong>.<\/p>\n<p>It is an essential building block in many sectors and it will be exciting to see the future innovations and applications of <strong>PET<\/strong> in the plastics world.<\/p>\n\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-6336c86 elementor-widget elementor-widget-spacer\" data-id=\"6336c86\" 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<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Polyethylene terephthalate, commonly referred to as PET, occupies an important place in numerous industrial and commercial productions.<\/p>\n","protected":false},"author":3,"featured_media":13737,"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-22493","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\/22493","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=22493"}],"version-history":[{"count":0,"href":"https:\/\/www.linseis.com\/en\/wp-json\/wp\/v2\/posts\/22493\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.linseis.com\/en\/wp-json\/wp\/v2\/media\/13737"}],"wp:attachment":[{"href":"https:\/\/www.linseis.com\/en\/wp-json\/wp\/v2\/media?parent=22493"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.linseis.com\/en\/wp-json\/wp\/v2\/categories?post=22493"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.linseis.com\/en\/wp-json\/wp\/v2\/tags?post=22493"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}