{"id":2248,"date":"2024-11-20T08:56:07","date_gmt":"2024-11-20T00:56:07","guid":{"rendered":"https:\/\/www.meltextruder.com\/?page_id=2248"},"modified":"2024-11-20T08:58:43","modified_gmt":"2024-11-20T00:58:43","slug":"what-is-coextrusion%ef%bc%9f","status":"publish","type":"page","link":"https:\/\/www.meltextruder.com\/fr\/what-is-coextrusion%ef%bc%9f","title":{"rendered":"Qu'est-ce que la coextrusion\uff1f ?"},"content":{"rendered":"

La coextrusion est le processus de formation d'un extrudat compos\u00e9 de plus d'un flux de mati\u00e8re thermoplastique fondue. Elle est tr\u00e8s similaire \u00e0 l'extrusion plastique, mais avec la coextrusion, vous ins\u00e9rez plusieurs polym\u00e8res dans les fili\u00e8res d'extrusion pour produire un profil\u00e9 unique avec une gamme de caract\u00e9ristiques physiques.<\/p>\n\n\n\n

Certaines demandes du march\u00e9, en particulier de l'industrie de l'emballage, ne pouvaient \u00eatre satisfaites par un seul polym\u00e8re, mais elles pouvaient l'\u00eatre par une combinaison de polym\u00e8res. La coextrusion a d'abord \u00e9t\u00e9 pratiqu\u00e9e dans la production de films coul\u00e9s et est maintenant \u00e9galement utilis\u00e9e dans l'extrusion de films souffl\u00e9s et de feuilles. L'objectif est normalement de produire une structure laminaire dans laquelle chaque couche apporte une propri\u00e9t\u00e9 essentielle \u00e0 la performance globale du produit. Les films coextrud\u00e9s peuvent \u00eatre des structures tr\u00e8s complexes compos\u00e9es de nombreuses couches fonctionnelles diff\u00e9rentes, y compris des couches de liaison dont le but est de lier des couches voisines de compatibilit\u00e9 limit\u00e9e.<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

Melt est fabricant, fournisseur et exportateur d'extrudeuse \u00e0 vis unique de laboratoire, d'extrudeuse \u00e0 double vis de laboratoire, de machine de soufflage de film de laboratoire, de ligne d'extrusion de filament pour imprimante 3D Mni, de machine d'extrusion de film coul\u00e9 de laboratoire, de broyeur \u00e0 deux rouleaux de laboratoire, de m\u00e9langeur banbury de laboratoire, de ligne d'extrusion de mati\u00e8re thermofusible, etc.<\/strong><\/p>\n\n\n\n

<\/p>","protected":false},"excerpt":{"rendered":"

Coextrusion is the process of forming an extrudate composed of more than one thermoplastic melt stream. It’s very similar to Plastic Extrusion,however, with co-extrusion you are inserting multiple polymers into the extrusion dies to produce a single profile with a range of physical characteristics. Cause of some demands from market, particularly from the packaging industry, could not be satisfied by […]<\/p>\n","protected":false},"author":2,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"footnotes":""},"class_list":["post-2248","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.meltextruder.com\/fr\/wp-json\/wp\/v2\/pages\/2248","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.meltextruder.com\/fr\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.meltextruder.com\/fr\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.meltextruder.com\/fr\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.meltextruder.com\/fr\/wp-json\/wp\/v2\/comments?post=2248"}],"version-history":[{"count":2,"href":"https:\/\/www.meltextruder.com\/fr\/wp-json\/wp\/v2\/pages\/2248\/revisions"}],"predecessor-version":[{"id":2250,"href":"https:\/\/www.meltextruder.com\/fr\/wp-json\/wp\/v2\/pages\/2248\/revisions\/2250"}],"wp:attachment":[{"href":"https:\/\/www.meltextruder.com\/fr\/wp-json\/wp\/v2\/media?parent=2248"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}