{"id":5,"date":"2020-05-27T23:30:29","date_gmt":"2020-05-27T23:30:29","guid":{"rendered":"https:\/\/hotmelts.eu\/?page_id=5"},"modified":"2021-08-23T10:09:37","modified_gmt":"2021-08-23T10:09:37","slug":"hot-melt-adhesives","status":"publish","type":"page","link":"https:\/\/hotmelts.eu\/fr\/","title":{"rendered":"Adh\u00e9sifs thermofusibles"},"content":{"rendered":"<p>Les adh\u00e9sifs thermofusibles sont des produits sans solvant ou sans eau, plus ou moins solides \u00e0 temp\u00e9rature ambiante, pr\u00e9sents \u00e0 chaud sous forme de liquide visqueux et appliqu\u00e9s sur la surface adh\u00e9sive. Au refroidissement, ils se solidifient de mani\u00e8re r\u00e9versible et forment une liaison ferme. Ce groupe d&#039;adh\u00e9sifs est constitu\u00e9 de polym\u00e8res thermoplastiques \u00e0 base de diff\u00e9rentes mati\u00e8res premi\u00e8res chimiques<\/p>\n\n\n\n<div class=\"wp-block-nk-awb nk-awb\"><div class=\"nk-awb-wrap\" data-awb-type=\"yt_vm_video\" data-awb-video=\"https:\/\/www.youtube.com\/watch?v=SKlMGHs3XGY&amp;t=7s\" data-awb-video-mobile=\"false\"><div class=\"nk-awb-inner is-layout-constrained wp-block-awb-is-layout-constrained\"><\/div><\/div>\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"342\" height=\"341\" src=\"https:\/\/hotmelts.eu\/wp-content\/uploads\/2021\/08\/transp-leeg.png\" alt=\"\" class=\"wp-image-101\" srcset=\"https:\/\/hotmelts.eu\/wp-content\/uploads\/2021\/08\/transp-leeg.png 342w, https:\/\/hotmelts.eu\/wp-content\/uploads\/2021\/08\/transp-leeg-300x300.png 300w, https:\/\/hotmelts.eu\/wp-content\/uploads\/2021\/08\/transp-leeg-150x150.png 150w, https:\/\/hotmelts.eu\/wp-content\/uploads\/2021\/08\/transp-leeg-12x12.png 12w\" sizes=\"auto, (max-width: 342px) 100vw, 342px\" \/><\/figure>\n\n\n\n<p>Qu&#039;est-ce qu&#039;un adh\u00e9sif thermofusible ? <\/p>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Adh\u00e9sifs thermofusibles thermoplastiques et durcissants<\/h2>\n\n\n\n<p>Les adh\u00e9sifs thermofusibles peuvent \u00eatre divis\u00e9s en adh\u00e9sifs \u00e0 prise physique et chimique. Les adh\u00e9sifs \u00e0 prise physique sont des thermoplastiques, les adh\u00e9sifs \u00e0 prise chimique forment des thermodurcissables, c&#039;est-\u00e0-dire des r\u00e9seaux tridimensionnels. Un autre type de classification concerne le m\u00e9canisme de solidification. Ici, les adh\u00e9sifs thermofusibles sont divis\u00e9s en polym\u00e8res amorphes, polym\u00e8res semi-cristallins et polym\u00e8res \u00e0 haut poids mol\u00e9culaire, les deux premiers ayant une temp\u00e9rature de transition vitreuse sup\u00e9rieure \u00e0 la temp\u00e9rature ambiante et les derniers ayant une temp\u00e9rature de transition vitreuse inf\u00e9rieure \u00e0 la temp\u00e9rature ambiante. <\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"Adh\u00e9sifs Intercol Hotmelt\" width=\"680\" height=\"383\" src=\"https:\/\/www.youtube.com\/embed\/Ypzhe41eUCU?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen><\/iframe>\n<\/div><figcaption>Adh\u00e9sifs thermofusibles Intercol<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">EVA et polyol\u00e9fine<\/h2>\n\n\n\n<p>Les principaux polym\u00e8res utilis\u00e9s pour la prise physique des adh\u00e9sifs thermofusibles sont les r\u00e9sines polyamide, les polyesters satur\u00e9s, les copolym\u00e8res \u00e9thyl\u00e8ne-ac\u00e9tate de vinyle (EVA), les polyol\u00e9fines, les copolym\u00e8res blocs (styr\u00e8ne-butadi\u00e8ne-styr\u00e8ne ou styr\u00e8ne-isopr\u00e8ne-styr\u00e8ne) et les polyamides. <\/p>\n\n\n\n<h2 class=\"wp-block-heading\">PSA<\/h2>\n\n\n\n<p>Les adh\u00e9sifs sensibles \u00e0 la pression sont des syst\u00e8mes \u00e0 prise physique qui se caract\u00e9risent par leur adh\u00e9rence permanente. Les adh\u00e9sifs atteignent leur adh\u00e9rence aux mat\u00e9riaux \u00e0 coller au moyen d&#039;une pression de contact \u00e0 exercer - avec l&#039;augmentation de la pression de contact, une meilleure adh\u00e9rence est produite. Comme l&#039;assemblage d&#039;adh\u00e9sifs sensibles \u00e0 la pression peut avoir lieu \u00e0 la fois avant et apr\u00e8s le processus de prise, en fonction de la force de l&#039;adh\u00e9sif permanent, ils sont souvent utilis\u00e9s pour le pr\u00e9-rev\u00eatement. Cela signifie que le processus de candidature peut \u00eatre effectu\u00e9 ind\u00e9pendamment du collage en termes de temps et d&#039;espace.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"697\" height=\"606\" src=\"https:\/\/hotmelts.eu\/wp-content\/uploads\/2020\/05\/PSA-hot-melt-engineering.png\" alt=\"\" class=\"wp-image-6\" srcset=\"https:\/\/hotmelts.eu\/wp-content\/uploads\/2020\/05\/PSA-hot-melt-engineering.png 697w, https:\/\/hotmelts.eu\/wp-content\/uploads\/2020\/05\/PSA-hot-melt-engineering-300x261.png 300w\" sizes=\"auto, (max-width: 697px) 100vw, 697px\" \/><figcaption>Conception d&#039;un adh\u00e9sif thermofusible PSA<\/figcaption><\/figure>\n\n\n\n<p><br>Les adh\u00e9sifs sensibles \u00e0 la pression Hotmelt d&#039;Intercol se caract\u00e9risent par une forte adh\u00e9rence \u00e0 diff\u00e9rents mat\u00e9riaux, ainsi que par une r\u00e9sistance et une flexibilit\u00e9 \u00e9lev\u00e9es. Lors du traitement, ces adh\u00e9sifs modernes marquent des points en raison de leur adh\u00e9rence initiale sup\u00e9rieure \u00e0 la moyenne et de leur stabilit\u00e9 de viscosit\u00e9 exceptionnelle.<\/p>\n\n\n\n<p><\/p>\n\n\n\n<p><\/p>","protected":false},"excerpt":{"rendered":"<p>Hot-melt adhesives are solvent-free or water-free products that are more or less solid at room temperature, [&hellip;]<\/p>","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"template-full-width.php","meta":{"footnotes":""},"class_list":["post-5","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Hot melt adhesives - Hotmelt adhesives<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/hotmelts.eu\/fr\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Hot melt adhesives - 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