{"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\/da\/","title":{"rendered":"Smeltelim"},"content":{"rendered":"<p>Varmesmeltende kl\u00e6bemidler er opl\u00f8sningsmiddelfrie eller vandfrie produkter, der er mere eller mindre faste ved stuetemperatur, er til stede i den varme tilstand som en tyktflydende v\u00e6ske og p\u00e5f\u00f8res p\u00e5 kl\u00e6bemiddeloverfladen. Ved afk\u00f8ling st\u00f8rkner de reversibelt og danner en fast binding. Denne gruppe kl\u00e6bemidler er termoplastiske polymerer baseret p\u00e5 forskellige kemiske r\u00e5materialer<\/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>Hvad er en smeltelim? <\/p>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Termoplastisk og h\u00e6rdende smeltelim<\/h2>\n\n\n\n<p>Hotmelt-kl\u00e6bemidler kan opdeles i fysisk og kemisk h\u00e6rdende kl\u00e6bemidler. De fysisk h\u00e6rdende kl\u00e6bemidler er termoplastiske, de kemisk h\u00e6rdende danner termoh\u00e6rdende, dvs. tredimensionelle netv\u00e6rk. En anden type klassificering vedr\u00f8rer st\u00f8rkningsmekanismen. Her er hotmelt-kl\u00e6bemidler opdelt i amorfe polymerer, semi-krystallinske polymerer og h\u00f8jmolekyl\u00e6re polymerer, hvor de f\u00f8rste to har en glasovergangstemperatur over stuetemperatur, og sidstn\u00e6vnte har en glasovergangstemperatur under stuetemperatur <\/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=\"Intercol Hotmelt Lim\" 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>Intercol smeltelim<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">EVA og polyolefin<\/h2>\n\n\n\n<p>De vigtigste polymerer anvendt til fysisk h\u00e6rdning af smeltelim er polyamidharpikser, m\u00e6ttede polyestere, ethylen-vinylacetat (EVA) copolymerer, polyolefiner, blokcopolymerer (styren-butadien-styren eller styren-isopren-styren) og polyamider. <\/p>\n\n\n\n<h2 class=\"wp-block-heading\">PSA<\/h2>\n\n\n\n<p>Trykf\u00f8lsomme kl\u00e6bemidler er fysisk h\u00e6rdende systemer, der er karakteriseret ved deres permanente kl\u00e6bning. Kl\u00e6bemidlerne opn\u00e5r deres vedh\u00e6ftning til de materialer, der skal bindes, ved hj\u00e6lp af et kontakttryk, der skal ud\u00f8ves - med stigende kontakttryk frembringes en bedre vedh\u00e6ftning. Da sammenf\u00f8jning af trykf\u00f8lsomme kl\u00e6bemidler kan finde sted b\u00e5de f\u00f8r og efter h\u00e6rdningsprocessen, afh\u00e6ngigt af styrken af den permanente kl\u00e6bning, bruges de ofte til pr\u00e6coating. Dette betyder, at ans\u00f8gningsprocessen kan udf\u00f8res uafh\u00e6ngigt af bindingen med hensyn til tid og rum.<\/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>Udvikling af et PSA-smeltelim<\/figcaption><\/figure>\n\n\n\n<p><br>Hotmelt trykf\u00f8lsomme kl\u00e6bemidler fra Intercol er kendetegnet ved h\u00f8j vedh\u00e6ftning til forskellige materialer og af h\u00f8j styrke og fleksibilitet. Ved behandling scorer disse moderne kl\u00e6bemidler point p\u00e5 grund af deres indledende kl\u00e6bning over gennemsnittet og enest\u00e5ende viskositetsstabilitet.<\/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\/da\/\" \/>\n<meta property=\"og:locale\" content=\"da_DK\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Hot melt adhesives - 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