{"id":733,"date":"2025-06-22T13:49:28","date_gmt":"2025-06-22T13:49:28","guid":{"rendered":"https:\/\/saphydrogels.com\/?p=733"},"modified":"2025-06-23T00:59:31","modified_gmt":"2025-06-23T00:59:31","slug":"super-absorbent-polymer-referred-to-as-sap","status":"publish","type":"post","link":"https:\/\/saphydrogels.com\/fr\/super-absorbent-polymer-referred-to-as-sap\/","title":{"rendered":"Polym\u00e8re super absorbant (appel\u00e9 SAP)"},"content":{"rendered":"

Polym\u00e8re super absorbant<\/a> (appel\u00e9 SAP) est un type r\u00e9volutionnaire de mat\u00e9riau polym\u00e8re fonctionnel connu pour ses capacit\u00e9s d'absorption exceptionnelles. Contrairement aux mat\u00e9riaux traditionnels qui absorbent l'eau comme le papier de soie, le coton, l'\u00e9ponge et la p\u00e2te en flocons, le SAP peut absorber des centaines, voire des milliers de fois son poids et se transformer en un hydrogel qui retient l'eau m\u00eame sous pression.<\/p>\r\n

\"Polym\u00e8re<\/p>\r\n\r\n\r\n\r\n

L'histoire des SAP remonte aux ann\u00e9es 1960, lorsque le minist\u00e8re am\u00e9ricain de l'agriculture (USDA) a entam\u00e9 des recherches sur les mat\u00e9riaux destin\u00e9s \u00e0 am\u00e9liorer la conservation de l'eau dans les sols. Leurs efforts ont abouti \u00e0 la mise au point d'une r\u00e9sine bas\u00e9e sur le greffage d'un polym\u00e8re d'acrylonitrile sur des mol\u00e9cules d'amidon, ce qui a donn\u00e9 naissance \u00e0 un nouveau mat\u00e9riau absorbant capable d'absorber plus de 400 fois son poids sans lib\u00e9rer d'eau liquide sous pression.<\/p>\r\n\r\n\r\n\r\n

Simultan\u00e9ment, des entreprises japonaises, non impliqu\u00e9es dans les recherches de l'USDA, ont entam\u00e9 des \u00e9tudes ind\u00e9pendantes sur l'amidon, la carboxym\u00e9thylcellulose (CMC), l'acide acrylique, l'alcool polyvinylique (PVA) et l'anhydride mal\u00e9ique d'isobutyl\u00e8ne (IMA).<\/p>\r\n\r\n\r\n\r\n

Dans les ann\u00e9es 1970, les SAP ont \u00e9t\u00e9 utilis\u00e9s pour la premi\u00e8re fois dans le commerce, principalement dans des produits hygi\u00e9niques jetables plut\u00f4t que pour les applications d'amendement des sols auxquelles ils \u00e9taient destin\u00e9s \u00e0 l'origine.<\/p>\r\n\r\n\r\n\r\n

La perc\u00e9e a eu lieu en 1982 lorsque le SAP a \u00e9t\u00e9 incorpor\u00e9 dans les couches pour b\u00e9b\u00e9s en Europe, suivi de peu par son introduction dans les couches pour b\u00e9b\u00e9s super absorbantes au Japon par UniCharm.<\/p>\r\n\r\n\r\n\r\n

Les progr\u00e8s technologiques ont depuis lors r\u00e9duit l'utilisation de polym\u00e8res super absorbants greff\u00e9s sur l'amidon dans les produits hygi\u00e9niques jetables, la plupart des super absorbants \u00e9tant d\u00e9sormais des homopolym\u00e8res acryliques r\u00e9ticul\u00e9s (g\u00e9n\u00e9ralement neutralis\u00e9s au sodium) dans ces produits.<\/p>\r\n\r\n\r\n\r\n

En revanche, les superabsorbants utilis\u00e9s pour l'amendement des sols sont souvent des copolym\u00e8res acrylique-acrylamide r\u00e9ticul\u00e9s (g\u00e9n\u00e9ralement neutralis\u00e9s au potassium). Cette \u00e9volution de la technologie des SAP a contribu\u00e9 de mani\u00e8re significative au d\u00e9veloppement de mat\u00e9riaux de r\u00e9tention d'eau tr\u00e8s efficaces ayant des applications diverses dans tous les secteurs.<\/p>","protected":false},"excerpt":{"rendered":"

Super Absorbent Polymer (referred to as SAP) is a revolutionary type of functional polymer material known for its exceptional absorbency […]<\/p>\n","protected":false},"author":1,"featured_media":2377,"comment_status":"open","ping_status":"open","sticky":true,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"site-sidebar-layout":"right-sidebar","site-content-layout":"","ast-site-content-layout":"normal-width-container","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":"default","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-opacity":"","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-opacity":"","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-opacity":"","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-opacity":"","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-opacity":"","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-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[3],"tags":[66],"class_list":["post-733","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-super-absorbent-polymer-referred-to-as-sap"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/saphydrogels.com\/fr\/wp-json\/wp\/v2\/posts\/733","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/saphydrogels.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/saphydrogels.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/saphydrogels.com\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/saphydrogels.com\/fr\/wp-json\/wp\/v2\/comments?post=733"}],"version-history":[{"count":0,"href":"https:\/\/saphydrogels.com\/fr\/wp-json\/wp\/v2\/posts\/733\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/saphydrogels.com\/fr\/wp-json\/wp\/v2\/media\/2377"}],"wp:attachment":[{"href":"https:\/\/saphydrogels.com\/fr\/wp-json\/wp\/v2\/media?parent=733"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/saphydrogels.com\/fr\/wp-json\/wp\/v2\/categories?post=733"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/saphydrogels.com\/fr\/wp-json\/wp\/v2\/tags?post=733"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}