{"id":93621,"date":"2025-08-07T10:31:47","date_gmt":"2025-08-07T08:31:47","guid":{"rendered":"https:\/\/www.linseis.com\/non-classifiee\/identification-des-produits-de-degradation-et-surveillance-des-additifs-volatils-dans-les-thermoplastiques-par-ega-ftir\/"},"modified":"2025-09-02T15:01:07","modified_gmt":"2025-09-02T13:01:07","slug":"identification-des-produits-de-degradation-et-surveillance-des-additifs-volatils-dans-les-thermoplastiques-par-ega-ftir","status":"publish","type":"post","link":"https:\/\/www.linseis.com\/fr\/connaissance\/identification-des-produits-de-degradation-et-surveillance-des-additifs-volatils-dans-les-thermoplastiques-par-ega-ftir\/","title":{"rendered":"Identification des produits de d\u00e9gradation et surveillance des additifs volatils dans les thermoplastiques par EGA-FTIR"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"93621\" class=\"elementor elementor-93621 elementor-93538\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-7ac1a05 e-flex e-con-boxed e-con e-parent\" data-id=\"7ac1a05\" 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-0b9ff49 e-con-full e-flex e-con e-child\" data-id=\"0b9ff49\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-8d6f017 e-con-full e-flex e-con e-child\" data-id=\"8d6f017\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-8746a20 e-con-full e-flex e-con e-child\" data-id=\"8746a20\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-c125dd9 elementor-toc--minimized-on-tablet elementor-widget elementor-widget-table-of-contents\" data-id=\"c125dd9\" 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 des mati\u00e8res\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__c125dd9\" aria-expanded=\"true\" aria-label=\"Ouvrir la table des mati\u00e8res\"><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__c125dd9\" aria-expanded=\"true\" aria-label=\"Fermer la table des mati\u00e8res\"><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__c125dd9\" 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-f621ed6 elementor-widget elementor-widget-heading\" data-id=\"f621ed6\" 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\">Introduction et bases<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-75000e8 elementor-widget elementor-widget-text-editor\" data-id=\"75000e8\" 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>L&rsquo;analyse des gaz \u00e9volu\u00e9s en combinaison avec la spectroscopie infrarouge \u00e0 transform\u00e9e de Fourier <a href=\"https:\/\/www.linseis.com\/fr\/produits\/dispositifs-complementaires-et-accessoires\/l40-ega-ftir\/\"><strong>(EGA-FTIR)<\/strong><\/a> est une m\u00e9thode bien \u00e9tablie pour analyser la stabilit\u00e9 thermique et les \u00e9missions d&rsquo;additifs dans les thermoplastiques tels que <strong><a href=\"https:\/\/www.linseis.com\/fr\/connaissance\/polyethylene-haute-densite-pehd-une-vue-de-linterieur\/\">le poly\u00e9thyl\u00e8ne (PE)<\/a>, le<\/strong> polypropyl\u00e8ne (PP) et le polyamide (PA). En particulier, dans les premi\u00e8res \u00e9tapes d&rsquo;un processus thermique, l&rsquo;EGA-FTIR permet de d\u00e9tecter les produits de d\u00e9gradation et les additifs volatils, g\u00e9n\u00e9ralement de faible poids mol\u00e9culaire, avant m\u00eame l&rsquo;apparition de macro-d\u00e9fauts ou de dommages significatifs aux mat\u00e9riaux.<\/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-60e3adc elementor-widget elementor-widget-heading\" data-id=\"60e3adc\" 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\">Principe de fonctionnement de la m\u00e9thode EGA-FTIR<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9274b8b elementor-widget elementor-widget-heading\" data-id=\"9274b8b\" 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\">Principe de mesure<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-616e9ce elementor-widget elementor-widget-text-editor\" data-id=\"616e9ce\" 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>Dans l&rsquo;EGA-FTIR, le polym\u00e8re \u00e0 analyser est chauff\u00e9 pendant un programme de temp\u00e9rature contr\u00f4l\u00e9e. Les substances volatiles lib\u00e9r\u00e9es (par exemple, les \u00e9missions d&rsquo;additifs, les produits de d\u00e9composition, les monom\u00e8res r\u00e9siduels) sont directement transf\u00e9r\u00e9es dans une cellule de gaz du spectrom\u00e8tre IRTF o\u00f9 elles sont analys\u00e9es (4). Les spectres infrarouges obtenus permettent une identification qualitative et quantitative (avec \u00e9talonnage) des substances lib\u00e9r\u00e9es \u00e0 l&rsquo;aide de bandes d&rsquo;absorption caract\u00e9ristiques.  <\/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-a0c4be9 elementor-widget elementor-widget-heading\" data-id=\"a0c4be9\" 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\">D\u00e9roulement de la proc\u00e9dure<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-fbee7f0 elementor-widget elementor-widget-text-editor\" data-id=\"fbee7f0\" 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<ul><li><strong>Chauffage de l&rsquo;\u00e9chantillon :<\/strong> le mat\u00e9riau polym\u00e8re est chauff\u00e9 dans un four sp\u00e9cial de thermobalance (par exemple, en mode TGA) dans des conditions contr\u00f4l\u00e9es (mont\u00e9e en temp\u00e9rature, atmosph\u00e8re d\u00e9finie).<\/li><li><strong>Lib\u00e9ration de compos\u00e9s volatils :<\/strong> Les additifs, les plastifiants, les composants de faible poids mol\u00e9culaire ou les premiers produits de d\u00e9gradation s&rsquo;\u00e9vaporent d\u00e9j\u00e0 \u00e0 des temp\u00e9ratures mod\u00e9r\u00e9es et sont \u00e9vacu\u00e9s du four sous forme de flux gazeux (\u00ab\u00a0evolved gases\u00a0\u00bb).<\/li><li><strong>Transfert vers l&rsquo;IRTF :<\/strong> ces gaz sont transport\u00e9s en continu ou par \u00e9tapes via une ligne de transfert vers une cuvette \u00e0 gaz du spectrom\u00e8tre IRTF.<\/li><li><strong>Analyse IR :<\/strong> En IRTF, les mol\u00e9cules sont identifi\u00e9es par leur bande d&rsquo;absorption infrarouge caract\u00e9ristique. Chaque additif ou produit de d\u00e9gradation poss\u00e8de un spectre IR sp\u00e9cifique (empreinte digitale), de sorte que m\u00eame les m\u00e9langes complexes peuvent \u00eatre analys\u00e9s qualitativement et &#8211; avec \u00e9talonnage &#8211; quantitativement. <\/li><\/ul>\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-e844e6a elementor-widget elementor-widget-spacer\" data-id=\"e844e6a\" 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-fb61d0c elementor-widget elementor-widget-image\" data-id=\"fb61d0c\" 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\/2025\/08\/Blog-1024x576.png\" class=\"attachment-large size-large wp-image-93599\" alt=\"\" srcset=\"https:\/\/www.linseis.com\/wp-content\/uploads\/2025\/08\/Blog-1024x576.png 1024w, https:\/\/www.linseis.com\/wp-content\/uploads\/2025\/08\/Blog-300x169.png 300w, https:\/\/www.linseis.com\/wp-content\/uploads\/2025\/08\/Blog-768x432.png 768w, https:\/\/www.linseis.com\/wp-content\/uploads\/2025\/08\/Blog.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 class=\"elementor-element elementor-element-4a66649 elementor-widget elementor-widget-heading\" data-id=\"4a66649\" 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\">Produits d'\u00e9mission sp\u00e9cifiques des thermoplastiques<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-80693b5 elementor-widget elementor-widget-heading\" data-id=\"80693b5\" 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\">Poly\u00e9thyl\u00e8ne (PE)<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-32d8a7f elementor-widget elementor-widget-text-editor\" data-id=\"32d8a7f\" 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<ul><li><strong>Principaux produits :<\/strong> Hydrocarbures aliphatiques pendant la pyrolyse, produits gazeux tels que l&rsquo;\u00e9thane, l&rsquo;\u00e9th\u00e8ne, le propane, le prop\u00e8ne, les pentanes et autres compos\u00e9s d&rsquo;alcane et d&rsquo;alc\u00e8ne de faible poids mol\u00e9culaire<\/li><li><strong>Produits d&rsquo;oxydation :<\/strong> CO, CO\u2082 lors de l&rsquo;oxydation, en particulier \u00e0 un stade ult\u00e9rieur ou \u00e0 une temp\u00e9rature \u00e9lev\u00e9e<\/li><li><strong>Caract\u00e9ristiques de la FTIR :<\/strong> Bandes intenses pour les vibrations d&rsquo;\u00e9tirement C-H des cha\u00eenes aliphatiques<\/li><li><strong>Caract\u00e9ristiques particuli\u00e8res :<\/strong> Pratiquement pas de compos\u00e9s azot\u00e9s, car le PE ne contient pas de groupes azot\u00e9s<\/li><\/ul>\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-87d1666 elementor-widget elementor-widget-heading\" data-id=\"87d1666\" 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\">Polypropyl\u00e8ne (PP)<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c11b06e elementor-widget elementor-widget-text-editor\" data-id=\"c11b06e\" 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<ul><li><strong>Principaux produits :<\/strong> Comparable au PE, mais \u00e9missions accrues d&rsquo;alc\u00e8nes tels que le prop\u00e8ne, le 2-m\u00e9thylprop\u00e8ne et divers d\u00e9riv\u00e9s d&rsquo;alc\u00e8nes et d&rsquo;alcane.<\/li><li><strong>Produits de d\u00e9gradation oxyd\u00e9s :<\/strong> Ald\u00e9hydes, c\u00e9tones (surtout ac\u00e9tald\u00e9hyde, ac\u00e9tones) et acides carboxyliques (par ex. acide ac\u00e9tique), en particulier en cas de d\u00e9gradation oxydative (2)<\/li><li><strong>Autres gaz :<\/strong> CO, CO\u2082, H\u2082 et petites quantit\u00e9s d&rsquo;hydrog\u00e8ne<\/li><li><strong>Caract\u00e9ristiques de la FTIR :<\/strong> Oscillations de valence C-H typiques \u00e0 des nombres d&rsquo;onde l\u00e9g\u00e8rement diff\u00e9rents de PE en raison des structures des groupes m\u00e9thyle<\/li><\/ul>\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-1426a8a elementor-widget elementor-widget-heading\" data-id=\"1426a8a\" 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\">Polyamide (PA)<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a49a52e elementor-widget elementor-widget-text-editor\" data-id=\"a49a52e\" 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<ul><li><strong>Produits sp\u00e9cifiques :<\/strong> Ammoniac (NH\u2083), caprolactame (pour PA6), amides de faible poids mol\u00e9culaire et cyclohexanone d\u00e9j\u00e0 \u00e0 des temp\u00e9ratures mod\u00e9r\u00e9es (150-300\u00b0C)<\/li><li><strong>Autres \u00e9missions :<\/strong> butadi\u00e8ne, alkylamides et petites quantit\u00e9s de compos\u00e9s azot\u00e9s aliphatiques et aromatiques<\/li><li><strong>Caract\u00e9ristiques de la FTIR :<\/strong> En particulier la bande carbonyle (C=O) autour de 1712 cm-\u00b9 et les bandes d&rsquo;absorption pour les groupes NH et CO, qui distinguent clairement le PA-6 du PE et du PP.<\/li><\/ul>\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-19d7595 elementor-widget elementor-widget-spacer\" data-id=\"19d7595\" 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-8c436b6 elementor-widget elementor-widget-heading\" data-id=\"8c436b6\" 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\">Aper\u00e7u comparatif<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a3b74fc elementor-widget elementor-widget-shortcode\" data-id=\"a3b74fc\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"shortcode.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-shortcode\">\n<table id=\"tablepress-231\" class=\"tablepress tablepress-id-231\">\n<thead>\n<tr class=\"row-1\">\n\t<th class=\"column-1\">Polymer<\/th><th class=\"column-2\">Hauptemissionsprodukte<\/th><th class=\"column-3\">Spezifische Molek\u00fcle<\/th><th class=\"column-4\">Spektrale Besonderheiten<\/th>\n<\/tr>\n<\/thead>\n<tbody class=\"row-striping row-hover\">\n<tr class=\"row-2\">\n\t<td class=\"column-1\">PE<\/td><td class=\"column-2\">Aliphatische KW, CO, CO\u2082<\/td><td class=\"column-3\">Ethan, Ethen, Propan, Pentane<\/td><td class=\"column-4\">C\u2013H aliphatisch<\/td>\n<\/tr>\n<tr class=\"row-3\">\n\t<td class=\"column-1\">PP<\/td><td class=\"column-2\">Aliphatische KW, Aldehyde, CO\u2082<\/td><td class=\"column-3\">Propen, Acetaldehyd, Essigs\u00e4ure<\/td><td class=\"column-4\">C\u2013H + Methylgruppen<\/td>\n<\/tr>\n<tr class=\"row-4\">\n\t<td class=\"column-1\">PA<\/td><td class=\"column-2\">Amide, Stickstoffverbindungen<\/td><td class=\"column-3\">Ammoniak, Caprolactam, Cyclohexanon<\/td><td class=\"column-4\">NH-, C=O-Banden, aromatische Fragmente<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<!-- #tablepress-231 from cache --><\/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-f2a33f1 elementor-widget elementor-widget-heading\" data-id=\"f2a33f1\" 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\">Exemples d'application et r\u00e9sultats de recherche<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-182b93f elementor-widget elementor-widget-text-editor\" data-id=\"182b93f\" 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>Biale et al. ont montr\u00e9 que les profils de d\u00e9gradation thermique du polypropyl\u00e8ne (PP) et du poly\u00e9thyl\u00e8ne (PE) peuvent \u00eatre d\u00e9tect\u00e9s de mani\u00e8re tr\u00e8s sensible \u00e0 l&rsquo;aide des enregistrements EGA. Par exemple, pour le PP, la m\u00e9thode a montr\u00e9 une baisse de la temp\u00e9rature de d\u00e9but de d\u00e9gradation due \u00e0 un vieillissement artificiel, associ\u00e9e \u00e0 des \u00e9missions de gaz modifi\u00e9es (1).  <\/p><p>Park et al. ont pu utiliser la TG-FTIR pour d\u00e9terminer avec pr\u00e9cision les temps et les temp\u00e9ratures d&rsquo;\u00e9mission de produits de pyrolyse sp\u00e9cifiques \u00e0 partir de diff\u00e9rents thermoplastiques. En particulier, les gaz de faible poids mol\u00e9culaire &#8211; tels que les additifs ou les monom\u00e8res &#8211; ont \u00e9t\u00e9 quantifi\u00e9s tr\u00e8s t\u00f4t dans le programme de temp\u00e9rature (2).  <\/p><p>Cuthbertson et al. ont d\u00e9crit la possibilit\u00e9 d&rsquo;identifier les additifs d\u00e8s les spectres FTIR en mode EGA et de suivre leur concentration en fonction de l&rsquo;\u00e9volution de la temp\u00e9rature (3). <\/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-735dcb1 elementor-widget elementor-widget-heading\" data-id=\"735dcb1\" 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\">Avantages et domaines d'application<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e3a3821 elementor-widget elementor-widget-heading\" data-id=\"e3a3821\" 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\">Avantages sp\u00e9cifiques<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4627a25 elementor-widget elementor-widget-text-editor\" data-id=\"4627a25\" 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<ul><li><strong>Haute sensibilit\u00e9<\/strong> aux additifs organiques volatils et semi-volatils<\/li><li><strong>D\u00e9tection pr\u00e9coce :<\/strong> tous les additifs volatils et semi-volatils sont d\u00e9tect\u00e9s d\u00e8s le d\u00e9but du processus de chauffage, avant m\u00eame que les changements macroscopiques ne soient visibles sur le corps solide.<\/li><li><strong>Identification sp\u00e9cifique<\/strong> des \u00e9missions individuelles via des bandes FTIR caract\u00e9ristiques<\/li><li><strong>Int\u00e9grabilit\u00e9<\/strong> dans les syst\u00e8mes de thermobalance existants (5)<\/li><li><strong>Large \u00e9ventail d&rsquo;applications :<\/strong> outre les additifs, les monom\u00e8res r\u00e9siduels, les solvants ou les modifications chimiques peuvent \u00eatre surveill\u00e9s via leurs \u00e9missions de gaz.<\/li><\/ul>\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-cf8d73f elementor-widget elementor-widget-heading\" data-id=\"cf8d73f\" 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\">Domaines d'application<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a90ae64 elementor-widget elementor-widget-text-editor\" data-id=\"a90ae64\" 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<ul><li>Assurance qualit\u00e9 des polym\u00e8res bruts<\/li><li>Stabilit\u00e9 des additifs dans le processus de recyclage<\/li><li>D\u00e9veloppement de formulations \u00e0 faible teneur en polluants<\/li><li>Analyse des erreurs dans le quotidien du laboratoire<\/li><li>Suivi rapide et non destructif de la qualit\u00e9<\/li><li>Recherche des causes profondes des processus de laboratoire, de production ou de recyclage<\/li><li>Contr\u00f4le des mati\u00e8res premi\u00e8res<\/li><li>D\u00e9veloppement de nouveaux syst\u00e8mes d&rsquo;additifs<\/li><\/ul>\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-6f57c82 elementor-widget elementor-widget-spacer\" data-id=\"6f57c82\" 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-47a57e4 elementor-widget elementor-widget-heading\" data-id=\"47a57e4\" 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-6866e1d elementor-widget elementor-widget-text-editor\" data-id=\"6866e1d\" 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<ul><li><p>La m\u00e9thode EGA-FTIR est id\u00e9ale pour le suivi proactif et le d\u00e9veloppement de formulations de polym\u00e8res durables avec des profils d&rsquo;\u00e9mission contr\u00f4l\u00e9s. Ces produits d&rsquo;\u00e9mission sp\u00e9cifiques permettent une identification pr\u00e9coce et s\u00e9lective des thermoplastiques et de leurs additifs d\u00e8s le stade pr\u00e9coce du processus thermique. Les utilisateurs de laboratoire et les ing\u00e9nieurs trouveront dans l&rsquo;EGA-FTIR un package complet et performant pour les analyses de routine, les analyses de d\u00e9faillance et le contr\u00f4le en cours de processus.  <\/p><\/li><\/ul>\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-12377b2 elementor-widget elementor-widget-spacer\" data-id=\"12377b2\" 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-5502298 elementor-widget elementor-widget-spacer\" data-id=\"5502298\" 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-0175788 elementor-widget elementor-widget-text-editor\" data-id=\"0175788\" 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>R\u00e9pertoire des sources<\/strong><\/p><p>(1) Biale, G. et al. (2021). Une \u00e9tude syst\u00e9matique sur les produits de d\u00e9gradation du polypropyl\u00e8ne et d&rsquo;autres polym\u00e8res communs via des analyses EGA-MS et Py-GC-MS. PMC. <a href=\"https:\/\/pmc.ncbi.nlm.nih.gov\/articles\/PMC8234390\/\" target=\"_blank\" rel=\"noopener\">https:\/\/pmc.ncbi.nlm.nih.gov\/articles\/PMC8234390\/<\/a><\/p><p>(2) Park, K.B. et al. (2023). Produits de pyrolyse de diff\u00e9rents types de plastiques en utilisant la TG-FTIR. <em>ScienceDirect.<\/em> <a href=\"https:\/\/www.sciencedirect.com\/science\/article\/abs\/pii\/S0165237023001274\" target=\"_blank\" rel=\"noopener\">https:\/\/www.sciencedirect.com\/science\/article\/abs\/pii\/S0165237023001274<\/a><\/p><p>(3) Cuthbertson, A.A. et al. (2024). Caract\u00e9risation des propri\u00e9t\u00e9s des polym\u00e8res et identification des additifs : opportunit\u00e9s avec TGA-FTIR. <em>Publication RSC.<\/em> <a href=\"https:\/\/pubs.rsc.org\/en\/content\/articlehtml\/2024\/gc\/d4gc00659c\" target=\"_blank\" rel=\"noopener\">https:\/\/pubs.rsc.org\/en\/content\/articlehtml\/2024\/gc\/d4gc00659c<\/a><\/p><p>(4) Measurlabs (2006). Evolved Gas Analysis (EGA) | TGA-FTIR &amp; TGA-MS.   <a href=\"https:\/\/measurlabs.com\/methods\/evolved-gas-analysis\/\" target=\"_blank\" rel=\"noopener\">https:\/\/measurlabs.com\/methods\/evolved-gas-analysis\/<\/a><\/p><p>(5) Linseis Messger\u00e4te GmbH (2025). Description de la Gas Analysis L40 EGA FTIR pour thermobalances. <a href=\"https:\/\/www.linseis.com\/en\/instruments\/additional-devices-support\/l40-ega-ftir\/ct\">https:\/\/www.linseis.com\/en\/instruments\/additional-devices-support\/l40-ega-ftir\/ct*.<\/a> <a href=\"https:\/\/www.sciencedirect.com\/science\/article\/abs\/pii\/S0165237023001274\" target=\"_blank\" rel=\"noopener\">https:\/\/www.sciencedirect.com\/science\/article\/abs\/pii\/S0165237023001274<\/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<\/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>L&rsquo;analyse des gaz d\u00e9velopp\u00e9s combin\u00e9e \u00e0 la spectroscopie infrarouge \u00e0 transform\u00e9e de Fourier (EGA-FTIR) est une m\u00e9thode bien \u00e9tablie pour analyser la stabilit\u00e9 thermique et les \u00e9missions d&rsquo;additifs dans les thermoplastiques tels que le poly\u00e9thyl\u00e8ne (PE), le polypropyl\u00e8ne (PP) et le polyamide (PA).  <\/p>\n","protected":false},"author":15,"featured_media":93587,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[187],"tags":[],"class_list":["post-93621","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-connaissance"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.linseis.com\/fr\/wp-json\/wp\/v2\/posts\/93621","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.linseis.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.linseis.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.linseis.com\/fr\/wp-json\/wp\/v2\/users\/15"}],"replies":[{"embeddable":true,"href":"https:\/\/www.linseis.com\/fr\/wp-json\/wp\/v2\/comments?post=93621"}],"version-history":[{"count":0,"href":"https:\/\/www.linseis.com\/fr\/wp-json\/wp\/v2\/posts\/93621\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.linseis.com\/fr\/wp-json\/wp\/v2\/media\/93587"}],"wp:attachment":[{"href":"https:\/\/www.linseis.com\/fr\/wp-json\/wp\/v2\/media?parent=93621"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.linseis.com\/fr\/wp-json\/wp\/v2\/categories?post=93621"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.linseis.com\/fr\/wp-json\/wp\/v2\/tags?post=93621"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}