{"id":11210,"date":"2025-11-17T06:13:27","date_gmt":"2025-11-17T11:13:27","guid":{"rendered":"https:\/\/technetics.com\/?post_type=resource_library&#038;p=11210"},"modified":"2025-11-17T07:34:10","modified_gmt":"2025-11-17T12:34:10","slug":"understanding-silicone-rubber-ageing","status":"publish","type":"resource_library","link":"https:\/\/technetics.com\/fr\/resource_library\/understanding-silicone-rubber-ageing\/","title":{"rendered":"Comprendre le vieillissement du caoutchouc silicone"},"content":{"rendered":"<section  class='av_textblock_section av-mi30eazv-3afca9c21536be3818015d317ef9fb71'   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock av_inherit_color'  itemprop=\"text\" ><h1 style=\"text-align: center;\">Comprendre le vieillissement du caoutchouc silicone :<\/h1>\n<h1 style=\"text-align: center;\"><\/h1>\n<\/div><\/section>\n<section  class='av_textblock_section av-mi31e5u7-00260a5d44b2879c1ffddf50e97ed84c'   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock av_inherit_color'  itemprop=\"text\" ><h2 style=\"text-align: center;\">Le groupe Technetics \u00e0 la pointe de l'innovation<\/h2>\n<h1 style=\"text-align: center;\"><\/h1>\n<\/div><\/section>\n<div  class='flex_column av-10ux0kq-ead05c0a3b8be75da36321f7d0a341f6 av_two_third  avia-builder-el-2  el_after_av_textblock  el_before_av_one_third  first flex_column_div  column-top-margin'     ><section  class='av_textblock_section av-mi30tvn6-162906e14f9335d5d2a9e1c9d0c6f66d'   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><p><strong>Des joints d'\u00e9tanch\u00e9it\u00e9 des dispositifs m\u00e9dicaux aux technologies implantables, les mat\u00e9riaux en caoutchouc de silicone n'ont cess\u00e9 de gagner du terrain sur le march\u00e9 des sciences de la vie \u00e0 haute performance. Leurs propri\u00e9t\u00e9s in\u00e9gal\u00e9es en font un mat\u00e9riau id\u00e9al pour les applications critiques.<\/strong><\/p>\n<p>Mais comment r\u00e9sistent-ils \u00e0 des conditions extr\u00eames telles que la st\u00e9rilisation r\u00e9p\u00e9t\u00e9e ? Une exigence essentielle dans les environnements m\u00e9dicaux.<\/p>\n<p>Une \u00e9tude r\u00e9cente men\u00e9e par Technetics Group et le laboratoire MAPIEM de l'Universit\u00e9 de Toulon se penche sur cette question.<\/p>\n<p>La recherche s'est concentr\u00e9e sur un<strong> caoutchouc de silicone rempli de silice<\/strong>une formulation de choix pour les applications d'\u00e9tanch\u00e9it\u00e9. L'\u00e9quipe de recherche l'a soumis \u00e0<strong> cycles de vieillissement intense<\/strong>Le syst\u00e8me de st\u00e9rilisation est compos\u00e9 d'une s\u00e9rie d'\u00e9tapes : alternance de vide et de vapeur \u00e0 haute pression, reproduisant les proc\u00e9dures de st\u00e9rilisation en service, typiques de celles utilis\u00e9es dans les \u00e9tablissements m\u00e9dicaux.<\/p>\n<h2>Principaux r\u00e9sultats<\/h2>\n<p><strong>Contrairement aux id\u00e9es re\u00e7ues, le caoutchouc de silicone subit non seulement des transformations du r\u00e9seau de polym\u00e8res, notamment la scission hydrolytique des cha\u00eenes et la recombinaison inverse, mais aussi des r\u00e9arrangements substantiels aux interfaces silice-polym\u00e8re, o\u00f9 de nouvelles liaisons covalentes remplacent les interactions physiques initiales.<\/strong><\/p>\n<p>Cette \u00e9tude <strong>permet de mieux comprendre les voies de d\u00e9gradation du caoutchouc de silicone rempli de silice.<\/strong> La compr\u00e9hension de ces changements aide les ing\u00e9nieurs \u00e0 s\u00e9lectionner les mati\u00e8res premi\u00e8res appropri\u00e9es pour <strong>concevoir des joints d'\u00e9tanch\u00e9it\u00e9 plus durables et plus r\u00e9sistants pour :<\/strong><\/p>\n<ul>\n<li>\u00c9quipements de st\u00e9rilisation m\u00e9dicale<\/li>\n<li>Installations de sciences de la vie<\/li>\n<li>Appareils industriels \u00e0 haute performance<\/li>\n<\/ul>\n<p>Permettre un contr\u00f4le total de chaque \u00e9tape de la cha\u00eene de valeur, de la s\u00e9lection des mati\u00e8res premi\u00e8res \u00e0 la transformation et \u00e0 l'assemblage final.<\/p>\n<h2>L'expertise du Groupe Technetics<\/h2>\n<p>La contribution du groupe Technetics \u00e0 cette recherche met en \u00e9vidence <strong>son leadership dans le domaine des sciences des mat\u00e9riaux<\/strong> et son engagement <strong>\u00e0 l'innovation pour r\u00e9pondre aux exigences des environnements extr\u00eames.<\/strong> En combinant des m\u00e9thodes d'essai avanc\u00e9es telles que la RMN du solide, le gonflement modifi\u00e9 au NH3, l'ATG et l'IRTF... avec des simulations du monde r\u00e9el, l'\u00e9quipe a \u00e9tabli une nouvelle r\u00e9f\u00e9rence dans la compr\u00e9hension des m\u00e9canismes de d\u00e9gradation du caoutchouc silicone.<\/p>\n<p><strong>Curieux de mieux comprendre comment le caoutchouc silicone se d\u00e9grade sous l'effet de la vapeur \u00e0 l'\u00e9chelle micromol\u00e9culaire ?<\/strong><\/p>\n<p>Consultez notre dernier article publi\u00e9 dans Polymer Degradation and Stability, Elsevier : <a href=\"http:\/\/doi.org\/10.1016\/j.polymdegradstab.2025.111332\">http:\/\/doi.org\/10.1016\/j.polymdegradstab.2025.111332<\/a><\/p>\n<\/div><\/section><\/div><div  class='flex_column av-lwiq8a-acae2e85ad84fcff7d2e9213f3761522 av_one_third  avia-builder-el-4  el_after_av_two_third  avia-builder-el-last  flex_column_div  column-top-margin'     ><style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-mi30myof-6ec3e96d56599faee19ecf6701762b6f\">\n.avia-image-container.av-mi30myof-6ec3e96d56599faee19ecf6701762b6f img.avia_image{\nbox-shadow:none;\n}\n.avia-image-container.av-mi30myof-6ec3e96d56599faee19ecf6701762b6f .av-image-caption-overlay-center{\ncolor:#ffffff;\n}\n<\/style>\n<div  class='avia-image-container av-mi30myof-6ec3e96d56599faee19ecf6701762b6f av-styling- avia-align-center  avia-builder-el-5  avia-builder-el-no-sibling'   itemprop=\"image\" itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/ImageObject\" ><div class=\"avia-image-container-inner\"><div class=\"avia-image-overlay-wrap\"><img decoding=\"async\" fetchpriority=\"high\" class='wp-image-11212 avia-img-lazy-loading-not-11212 avia_image' src=\"https:\/\/technetics.com\/wp-content\/uploads\/2025\/11\/Article-Understanding_Silicone_Rubber.jpg\" alt='Silicone Rubber Ageing' title='Article-Comprendre le caoutchouc silicon\u00e9'  height=\"628\" width=\"1200\"  itemprop=\"thumbnailUrl\" srcset=\"https:\/\/technetics.com\/wp-content\/uploads\/2025\/11\/Article-Understanding_Silicone_Rubber.jpg 1200w, https:\/\/technetics.com\/wp-content\/uploads\/2025\/11\/Article-Understanding_Silicone_Rubber-768x402.jpg 768w, https:\/\/technetics.com\/wp-content\/uploads\/2025\/11\/Article-Understanding_Silicone_Rubber-18x9.jpg 18w, https:\/\/technetics.com\/wp-content\/uploads\/2025\/11\/Article-Understanding_Silicone_Rubber-705x369.jpg 705w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/div><\/div><\/div><\/div><\/p>","protected":false},"excerpt":{"rendered":"","protected":false},"featured_media":11212,"template":"","categories":[67],"product_category":[],"application":[],"product":[],"class_list":["post-11210","resource_library","type-resource_library","status-publish","has-post-thumbnail","hentry","category-articles"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.2 - 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