{"id":254,"date":"2021-01-20T22:24:59","date_gmt":"2021-01-20T22:24:59","guid":{"rendered":"https:\/\/www.purhotmelt.com\/?page_id=254"},"modified":"2021-01-20T22:25:00","modified_gmt":"2021-01-20T22:25:00","slug":"low-application-temperature-hot-melt-adhesives","status":"publish","type":"page","link":"https:\/\/www.purhotmelt.com\/nb\/low-application-temperature-hot-melt-adhesives\/","title":{"rendered":"LAVT ANVENDELSESTEMPERATUR VARM SMELTLIM"},"content":{"rendered":"<h1 class=\"wp-block-heading\"><\/h1>\n\n\n\n<p>P\u00e5f\u00f8ringstemperaturen p\u00e5 smeltelim b\u00f8r presenteres p\u00e5 produktets tekniske datablad, da andre detaljer som kort sammendrag av p\u00e5f\u00f8ring og viskositet ogs\u00e5 er nyttige, selv som smeltepunktet. Valgfrie data kan v\u00e6re sammensetningen av smeltelimet, det er farge og form.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">LAVT ANVENDELSESTEMPERATUR VARM SMELTLIM<\/h2>\n\n\n\n<p>Det er en trend med smeltelim med lav p\u00e5f\u00f8ringstemperatur, men disse kan ha noen ulemper. Den typiske temperaturen p\u00e5 standard smeltelim i emballasjeindustrien er 160 \u00b0 C, hvor den typiske smeltelimet med lav p\u00e5f\u00f8ringstemperatur er 120 \u00b0 C. De to viktigste grunnene til \u00e5 fremme smeltelim med lav p\u00e5f\u00f8ringstemperatur er:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>H\u00f8y ytelse p\u00e5 et bredt utvalg av applikasjoner<ul><li>Smeltelim med lav p\u00e5f\u00f8ringstemperatur krever polymerer med lavt smeltepunkt. Disse polymerene dekker omtrent bare 25% av polymerens tilgjengelighet. Med fokus p\u00e5 smeltelim med standard applikasjonstemperatur \u00f8ker valget i basispolymerer med 75% til 100%. S\u00e5 flere alternativer hvis standard OG lav p\u00e5f\u00f8ringstemperatur vurderes.<\/li><\/ul><\/li><li>Ingen r\u00f8yk<ul><li>Smeltelim av h\u00f8y kvalitet avgasser ikke ved 160 \u00b0 C, heller ikke ved 180 \u00b0 C<\/li><\/ul><\/li><li>Lavere energiforbruk<ul><li>Dette er mulig, det kan v\u00e6re en fin sideeffekt s\u00e5 lenge smelting ved lave temperaturer sparer forbruk (mengden) og linjeeffektivitet (ingen maskin stopper eller langsommere behandlingstid for emballasjemaskinen). Det kan betraktes som &quot;en dr\u00e5pe i b\u00f8tta&quot;.<\/li><\/ul><\/li><li>Forbedret sikkerhet<ul><li>Det er ogs\u00e5 en &quot;drop in te bucket&quot;, forbrenning ved 120 \u00b0 C er fremdeles veldig farlig, og sikkerhetsm\u00e5linger er lik forbrenninger ved 160 \u00b0 C. Snarere investere i lite limforbruk, vedlikehold og trening. Mindre maskinforstyrrelser vil gi et \u00f8kende sikkerhetsniv\u00e5 mer sannsynlig.<\/li><\/ul><\/li><li>Gjennomsnittlig forbruksreduksjon p\u00e5 20 % kontra tradisjonelle smeltelim<ul><li>Ekte; mot standard gulaktig EVA. ettersom de fleste smeltelim med lav temperatur er basert p\u00e5 polyolefin. Nye polyolefin smeltelim ved 160 \u00b0 C tillater til og med mindre limforbruk opp til 60%. (s\u00e5 smeltelim ved lave temperaturer er 50% mindre effektive!)<\/li><\/ul><\/li><li>Problemfritt vedlikehold<ul><li>Ekte; lavere p\u00e5f\u00f8ringstemperatur vil gi mindre kulling og varm smelting ved oksidasjon. Men hvit EVA av h\u00f8y kvalitet og polyolefin av h\u00f8y kvalitet vil ogs\u00e5 v\u00e6re stabile ved 160 \u00b0 C.<\/li><\/ul><\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">TEMPERATURMOTSTAND<\/h2>\n\n\n\n<p>Mange antar at smeltepunktet til et smeltelim er lik varmebestandigheten til et smeltelim p\u00e5 en emballasje. Ettersom de fleste smeltelimene er termoplastiske, vil de bli mykere selv langt under smeltepunktet. Smeltepunktet er bare det fysiske punktet der fast tilstand blir flytende. En annen viktig temperaturparameter for et smeltelim er&nbsp;<strong>EN<\/strong>dhesjon&nbsp;<strong>F<\/strong>sykdom<strong>&nbsp;T<\/strong>keiser, dette kan v\u00e6re en Shear-SAFT og en Peal-PAFT. Dette betyr temperaturen der et lim ikke klarer \u00e5 binde seg under en belastning.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">NOE TYPISKE TEMPERATURER P\u00c5 EMBALLASJEN VARMT SMELTLIM.<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td>Lim<\/td><td>applikasjon<br>temperatur<\/td><td>Smelting<br>punkt<\/td><td>Vedheft<br>Mislykkes<br>Temp.<\/td><\/tr><tr><td>Lav smeltetemperatur<\/td><td>120 \u00b0 C<\/td><td>85 \u00b0 C<\/td><td>38 \u00b0 C<\/td><\/tr><tr><td>Standard emballasje hot melt<\/td><td>160 \u00b0 C<\/td><td>110 \u00b0 C<\/td><td>50 \u00b0 C<\/td><\/tr><tr><td>Varmesmelt med h\u00f8y varmebestandighet<\/td><td>170 \u00b0 C<\/td><td>110 \u00b0 C<\/td><td>65 \u00b0 C<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">KONKLUSJON<\/h2>\n\n\n\n<p>Smeltelim med lav p\u00e5f\u00f8ringstemperatur kan v\u00e6re et alternativ, men vi anbefaler heller \u00e5 fokusere p\u00e5 den totale emballasjeprosessen, noe som g\u00e5r mer effektivt. Videre mislykkes risikoen for vedheft ved vanlig transport, spesielt i, til og over land rundt ekvator. Husk ogs\u00e5 at transporttemperaturen i varme somre kan bli oftere og oftere h\u00f8yere enn 40 \u00b0 C selv i land som ikke er i n\u00e6rheten av ekvator.<\/p>","protected":false},"excerpt":{"rendered":"<p>The\u00a0application temperature of hot melt adhesives\u00a0should be presented on the Product Technical datasheet, som other details [&hellip;]<\/p>","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-254","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v17.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>LOW APPLICATION TEMPERATURE HOT MELT ADHESIVES - PUR hot melt 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:\/\/www.purhotmelt.com\/nb\/low-application-temperature-hot-melt-adhesives\/\" \/>\n<meta property=\"og:locale\" content=\"nb_NO\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"LOW APPLICATION TEMPERATURE HOT MELT ADHESIVES - 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