{"id":6172,"date":"2023-07-10T14:31:14","date_gmt":"2023-07-10T14:31:14","guid":{"rendered":"https:\/\/longchangchemical.com\/?p=6172"},"modified":"2026-04-28T10:42:18","modified_gmt":"2026-04-28T10:42:18","slug":"what-is-the-light-aging-protection-of-uv-absorbers-for-coatings","status":"publish","type":"post","link":"https:\/\/longchangchemical.com\/hu\/what-is-the-light-aging-protection-of-uv-absorbers-for-coatings\/","title":{"rendered":"Milyen f\u00e9nyv\u00e9d\u0151 hat\u00e1s\u00faak a bevonatok UV-abszorberei?"},"content":{"rendered":"<p><!-- lc-qa-start --><\/p>\n<p><strong>Gyors v\u00e1lasz:<\/strong> Az antioxid\u00e1ns, UV-abszorber \u00e9s HALS t\u00e9m\u00e1kban a formul\u00e1z\u00f3k \u00e1ltal\u00e1ban egy\u00fctt hasonl\u00edtj\u00e1k \u00f6ssze a hossz\u00fa t\u00e1v\u00fa v\u00e9delmet, a folyamatstabilit\u00e1st \u00e9s a sz\u00ednszab\u00e1lyoz\u00e1st, mert ezek a priorit\u00e1sok nem mindig ugyanazt az adal\u00e9kanyagot jel\u00f6lik.<\/p>\n<p><!-- lc-qa-end --><\/p>\n<p>Milyen f\u00e9nyv\u00e9d\u0151 hat\u00e1s\u00faak a bevonatok UV-abszorberei?<\/p>\n<p>&nbsp;<\/p>\n<p>UV-abszorbensok, mint p\u00e9ld\u00e1ul <a href=\"https:\/\/longchangchemical.com\/hu\/product\/uv-384-2\/\">UV-abszorber 384-2<\/a> egy\u00fctt haszn\u00e1lva <a href=\"https:\/\/longchangchemical.com\/hu\/product\/light-stabilizer-292\/\">K\u00f6nny\u0171 stabiliz\u00e1tor 292<\/a> hat\u00e9konynak bizonyulnak a kikem\u00e9ny\u00edtett bevonatok f\u00e9ny\u00f6reged\u00e9s\u00e9nek lass\u00edt\u00e1s\u00e1ban. K\u00fcl\u00f6nb\u00f6z\u0151, megfelel\u0151 UV-abszorbens \u00e9s f\u00e9nystabiliz\u00e1tor hozz\u00e1ad\u00e1sa a bevonatk\u00e9pz\u0151d\u00e9sekhez j\u00f3l bev\u00e1lt m\u00f3dszer a k\u00fclt\u00e9ri haszn\u00e1latra sz\u00e1nt szerves bevonatokn\u00e1l, ahol magas min\u0151s\u00e9gre \u00e9s hossz\u00fa \u00e9lettartamra van sz\u00fcks\u00e9g. Az olyan UV-abszorbensek, mint az EVERSORB 80, EVERSORB 93 stb. klasszikus \u00f6reged\u00e9sg\u00e1tl\u00f3 term\u00e9kek.<\/p>\n<p>A bevonatok f\u00e9ny\u00f6reged\u00e9si teljes\u00edtm\u00e9ny\u00e9t sokf\u00e9lek\u00e9ppen lehet jellemezni. A karbonilszerkezet n\u00e9lk\u00fcli polimerek eset\u00e9ben a f\u00e9ny\u00f6reged\u00e9si viselked\u00e9s\u00fck az infrav\u00f6r\u00f6s abszorpci\u00f3s spektrumban a karboniljel v\u00e1ltoz\u00e1s\u00e1val jellemezhet\u0151. Egyes bevonatok azonban \u00e9szter-karbonilt, amm\u00f3nia\u00e9szter k\u00f6t\u00e9st stb. tartalmaznak, bele\u00e9rtve a f\u00e9nykem\u00e9nyed\u0151 UV-bevonatokat is, amelyek nem alkalmasak arra, hogy a karbonil\u00e9rt\u00e9ket haszn\u00e1lj\u00e1k f\u00e9ny\u00f6reged\u00e9si viselked\u00e9s\u00fck jellemz\u00e9s\u00e9re. Ebben az esetben a s\u00e1rgul\u00e1si indexet (YI) haszn\u00e1lhatjuk a jellemz\u00e9s\u00fckh\u00f6z. A nemzetk\u00f6zi szabv\u00e1nyos m\u00f3dszer az ASTM D1925 szabv\u00e1nyt k\u00f6veti, amelyben a kikem\u00e9ny\u00edtett filmet UV-f\u00e9nynek teszik ki, \u00e9s minden egyes expoz\u00edci\u00f3s id\u0151szak ut\u00e1n a kikem\u00e9ny\u00edtett film \u00e1tereszt\u0151k\u00e9pess\u00e9g\u00e9t t\u00f6bb meghat\u00e1rozott hull\u00e1mhosszon UV-l\u00e1that\u00f3 spektrofotom\u00e9terrel m\u00e9rik, \u00e9s a besug\u00e1rz\u00e1s forr\u00e1sa lehet egy k\u00f6zepes nyom\u00e1s\u00fa higanyl\u00e1mpa, amelynek Pyrex-\u00fcvege kisz\u0171ri a 320 nm alatti r\u00f6vidhull\u00e1m\u00fa UV-f\u00e9nyt.<\/p>\n<p>A s\u00e1rgas\u00e1gi indexet a k\u00f6vetkez\u0151k\u00e9ppen hat\u00e1rozz\u00e1k meg.<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>A mesters\u00e9ges f\u00e9nyforr\u00e1st haszn\u00e1l\u00f3 \u00f6reged\u00e9si tesztet gyors\u00edtott \u00f6reged\u00e9snek nevezik, a gyors\u00edtott \u00f6reged\u00e9st gyakran tov\u00e1bbi eszk\u00f6z\u00f6kkel, p\u00e9ld\u00e1ul p\u00e1ratartalom, h\u0151m\u00e9rs\u00e9klet, s\u00f3permet stb. p\u00e1ros\u00edtj\u00e1k annak \u00e9rdek\u00e9ben, hogy objekt\u00edvebben \u00e9s \u00e1tfog\u00f3an \u00e9rt\u00e9kelj\u00e9k a bevonat \u00f6reged\u00e9sg\u00e1tl\u00f3 teljes\u00edtm\u00e9ny\u00e9t. Az ultraibolya f\u00e9nyforr\u00e1s mellett a n\u00e9h\u00e1ny sz\u00e1z wattos xenonl\u00e1mpa teljes\u00edtm\u00e9nye, spektr\u00e1lis kimenete 250 nm-es folyamatos spektrumb\u00f3l, \u00e9s a nap spektr\u00e1lis s\u00e1veloszl\u00e1s\u00e1nak f\u00f6ldj\u00e9t el\u00e9rve hasonl\u00f3 a mesters\u00e9ges \u00f6reged\u00e9si g\u00e9p f\u00e9nyforr\u00e1s\u00e1ban \u00e1ltal\u00e1nosan haszn\u00e1lthoz. M\u00e1s mesters\u00e9ges \u00f6reged\u00e9si f\u00e9nyforr\u00e1sok k\u00f6z\u00e9 tartozik a QUVA \u00e9s a QUVB. A QUVA egy hossz\u00fa hull\u00e1m\u00fa ultraibolya kimenet, \u00e9s a QUVB kimeneti hull\u00e1mhossza 280-360nm, a k\u00f6zpont 310mm-n\u00e9l tal\u00e1lhat\u00f3. primit\u00edvebb, de teljesen \u00f6sszhangban van a term\u00e9szetes \u00f6reged\u00e9s a f\u00e9ny \u00f6reged\u00e9si tesztet k\u00f6zvetlen napf\u00e9nyben v\u00e9gzik, mint p\u00e9ld\u00e1ul az Egyes\u00fclt \u00c1llamokban, a floridai 45 fokos sz\u00f6gben t\u00f6rt\u00e9n\u0151 expoz\u00edci\u00f3s teszt haszn\u00e1lata.<\/p>\n<p>A f\u00f6ldi l\u00e9gk\u00f6r \u00f3zonelnyel\u00e9se miatt a l\u00e9gk\u00f6r\u00f6n kereszt\u00fcl a f\u00f6ldre \u00e9rkez\u0151 napf\u00e9ny 295 nm alatt a nagy energi\u00e1j\u00fa r\u00f6vidhull\u00e1m\u00fa ultraibolya f\u00e9nyt alapvet\u0151en kisz\u0171ri. Ez\u00e9rt a f\u00f6ldi napf\u00e9ny a polimer bevonat f\u00e9ny \u00f6reged\u00e9se er\u0151s hat\u00e1ssal van a hull\u00e1mhossz\u00fa s\u00e1vban els\u0151sorban a 295 ~ 400nm koncentr\u00e1l\u00f3dik, min\u00e9l r\u00f6videbb a hull\u00e1mhossz, ann\u00e1l nagyobb az energia, a polimer bevonat f\u00e9ny \u00f6reged\u00e9si hat\u00e1sa intenz\u00edvebb lesz. Az \u00e9vszak, az id\u0151, a magass\u00e1g, a f\u00f6ldrajzi sz\u00e9less\u00e9g, az id\u0151j\u00e1r\u00e1s, a l\u00e9gszennyez\u00e9s \u00e9s sok m\u00e1s t\u00e9nyez\u0151 hat\u00e1s\u00e1ra a f\u00f6ldi napf\u00e9ny UV-intenzit\u00e1sa v\u00e1ltozhat. Az \u00f3zonr\u00e9teg elnyeli a 320 nm alatti ultraibolya f\u00e9nyt, de a l\u00e9gk\u00f6ri szennyez\u00e9ssel, az \u00f3zonr\u00e9teg pusztul\u00e1s\u00e1val a talajra \u00e9rkez\u0151 r\u00f6vidhull\u00e1m\u00fa ultraibolya f\u00e9ny intenzit\u00e1sa \u00e9vr\u0151l \u00e9vre n\u0151. A k\u00fcl\u00f6nb\u00f6z\u0151 f\u00e9nyforr\u00e1sok haszn\u00e1lat\u00e1val a f\u00e9ny \u00f6reged\u00e9si eredm\u00e9nyei nem felt\u00e9tlen\u00fcl k\u00f6vetkezetesek, f\u0151k\u00e9nt a k\u00fcl\u00f6nb\u00f6z\u0151 f\u00e9nyforr\u00e1sok hull\u00e1mhossz-eloszl\u00e1sa, intenzit\u00e1sa, a k\u00f6rnyezeti p\u00e1ratartalom, a h\u0151m\u00e9rs\u00e9klet \u00e9s egy\u00e9b felt\u00e9telek nem teljesen k\u00f6vetkezetesek.<\/p>\n<p>A s\u00e1rgas\u00e1gi indexen k\u00edv\u00fcl a kikem\u00e9ny\u00edtett film \u00f6reged\u00e9sg\u00e1tl\u00f3 teljes\u00edtm\u00e9nye az abszorpci\u00f3s spektrum, a f\u00e9nyess\u00e9g, a hom\u00e1lyoss\u00e1g, a tapad\u00e1s, a mechanikai tulajdons\u00e1gok, a termodinamikai mechanikai viselked\u00e9s \u00e9s a v\u00e1ltoz\u00e1s egy\u00e9b mutat\u00f3inak vizsg\u00e1lat\u00e1val is jellemezhet\u0151. A f\u00e9ny-oxid\u00e1ci\u00f3nak a f\u00e9ny-\u00f6reged\u00e9si folyamatban val\u00f3 t\u00fals\u00falya miatt a bevonat hidroxil-index\u00e9nek vagy peroxid-index\u00e9nek v\u00e1ltoz\u00e1s\u00e1t gyakran haszn\u00e1lj\u00e1k a f\u00e9ny-\u00f6reged\u00e9st t\u00fckr\u00f6z\u0151 param\u00e9terk\u00e9nt. A polimerek k\u00fcl\u00f6nb\u00f6z\u0151 szerkezetei az \u00e9rz\u00e9keny csoportok koncentr\u00e1ci\u00f3j\u00e1nak v\u00e1ltoz\u00e1sa alapj\u00e1n is jellemezhet\u0151k.<\/p>\n<p><!-- lc-commercial-start --><\/p>\n<h2>Antioxid\u00e1ns, UV-elnyel\u0151 \u00e9s HALS csomagok praktikus kiv\u00e1laszt\u00e1si \u00fatvonala<\/h2>\n<p>Most stabiliz\u00e1tor-d\u00f6nt\u00e9sek akkor m\u0171k\u00f6dnek a legjobban, ha csomagolt d\u00f6nt\u00e9sk\u00e9nt kezelik \u0151ket, nem pedig egyedi term\u00e9kd\u00f6nt\u00e9sk\u00e9nt. A technikai v\u00e1s\u00e1rl\u00f3k \u00e1ltal\u00e1ban a leger\u0151sebb v\u00e1laszt kapj\u00e1k, ha egy\u00fcttesen vizsg\u00e1lj\u00e1k a hossz\u00fa t\u00e1v\u00fa h\u0151t\u0171r\u00e9st, a folyamatstabilit\u00e1st, az id\u0151j\u00e1r\u00e1si expoz\u00edci\u00f3t \u00e9s a sz\u00edntoleranci\u00e1t.<\/p>\n<ul>\n<li><strong>V\u00e1laszd sz\u00e9t a feldolgoz\u00e1s elleni v\u00e9delmet a hossz\u00fa t\u00e1v\u00fa stabilit\u00e1st\u00f3l:<\/strong> Az olvad\u00e1si t\u00f6rt\u00e9nelemhez legjobb adal\u00e9kanyag nem mindig ugyanaz, mint ami a legjobb \u00e9lettartam-megtart\u00e1st biztos\u00edtja.<\/li>\n<li><strong>Haszn\u00e1lja tudatosan a szinergi\u00e1t:<\/strong> sok polimer- \u00e9s bevonatrendszer akkor teljes\u00edt a legjobban, ha az els\u0151dleges \u00e9s a m\u00e1sodlagos stabiliz\u00e1torokat sz\u00e1nd\u00e9kosan p\u00e1ros\u00edtj\u00e1k.<\/li>\n<li><strong>Sz\u00edn- \u00e9s tisztas\u00e1gi k\u00f6vetelm\u00e9nyek \u00e1ttekint\u00e9se:<\/strong> A vil\u00e1gos, halv\u00e1ny, \u00e9lelmiszer-\u00e9rintkez\u00e9s\u0171 vagy feh\u00e9r rendszerek gyakran szigor\u00fabb csomagol\u00e1st ig\u00e9nyelnek, mint a s\u00f6t\u00e9t ipari term\u00e9kek.<\/li>\n<li><strong>Ellen\u0151rizze a val\u00f3s \u00f6reged\u00e9si \u00e1llapotot:<\/strong> A h\u0151, az UV sug\u00e1rz\u00e1s, a p\u00e1ratartalom \u00e9s a k\u00fclt\u00e9ri k\u00f6r\u00fclm\u00e9nyek mind befoly\u00e1solhatj\u00e1k, hogy melyik stabiliz\u00e1tor-\u00fatvonal a kereskedelmileg leghat\u00e9konyabb.<\/li>\n<\/ul>\n<h3>Aj\u00e1nlott term\u00e9kreferenci\u00e1k<\/h3>\n<ul>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/hu\/product\/cas-270586-78-2\/\">CHLUMINIT TMO<\/a>:<\/strong> \u00c9rt\u00e9kes \u00f6sszehasonl\u00edt\u00e1si pont, amikor az alacsonyabb s\u00e1rgul\u00e1s vagy a TPO-csere megbesz\u00e9l\u00e9se fontos.<\/li>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/hu\/product\/light-stabilizer-123-tinuvin-123-cas-129757-67-1\/\">CHLUMILS UV-123<\/a>:<\/strong> Er\u0151s HALS referenciaprofil a bevonatokban \u00e9s polimerekben alkalmazott UV-\u00e1ll\u00f3s\u00e1got c\u00e9lz\u00f3 bevonatokhoz.<\/li>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/hu\/product\/uv-5151-cas-104810-48-2\/\">CHLUMILS UV-5151<\/a>:<\/strong> Praktikus stabiliz\u00e1tor-csomag referencialap, ha sz\u00e9lesebb k\u00f6r\u0171 f\u00e9ny\u00e1ll\u00f3s\u00e1gi v\u00e9delemre van sz\u00fcks\u00e9g.<\/li>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/hu\/product\/light-stabilizer-770-tinuvin-770-cas-52829-07-9\/\">CHLUMILS UV-770<\/a>:<\/strong> Egy j\u00f3l ismert HALS benchmark, amikor az id\u0151j\u00e1r\u00e1s\u00e1ll\u00f3s\u00e1got \u00e9s a megjelen\u00e9s megtart\u00e1s\u00e1t vizsg\u00e1lj\u00e1k.<\/li>\n<\/ul>\n<h3>GYIK v\u00e1s\u00e1rl\u00f3knak \u00e9s formul\u00e1l\u00f3knak<\/h3>\n<p><strong>Mi\u00e9rt er\u0151sebbek gyakran a stabiliz\u00e1tor csomagok, mint egyetlen adal\u00e9kanyag?<\/strong><br \/>Mivel a k\u00fcl\u00f6nb\u00f6z\u0151 term\u00e9kek az elm\u00e9rgesed\u00e9si \u00fat k\u00fcl\u00f6nb\u00f6z\u0151 r\u00e9szeit k\u00e9pesek v\u00e9deni, \u00edgy a csomag gyakran egyn\u00e9l t\u00f6bb fokozatn\u00e1l nagyobb kock\u00e1zatot fed le.<\/p>\n<p><strong>Mindig jav\u00edtja a teljes\u00edtm\u00e9nyt t\u00f6bb antioxid\u00e1ns vagy UV-stabiliz\u00e1tor hozz\u00e1ad\u00e1sa?<\/strong><br \/>Nem felt\u00e9tlen\u00fcl. A t\u00faladagol\u00e1s n\u00f6velheti a k\u00f6lts\u00e9geket \u00e9s n\u00e9ha mell\u00e9khat\u00e1sokat is okozhat, \u00edgy a legt\u00f6bb rendszer a tesztelt adagol\u00e1si ablakon bel\u00fcl teljes\u00edt a legjobban.<\/p>\n<p><!-- lc-commercial-end --><\/p>","protected":false},"excerpt":{"rendered":"<p>Az UV-abszorberek \u00e9s f\u00e9nystabiliz\u00e1torok hat\u00e9konyan lass\u00edtj\u00e1k a kikem\u00e9nyedett bevonatok f\u00e9ny\u00f6reged\u00e9si magatart\u00e1s\u00e1t. K\u00fcl\u00f6nb\u00f6z\u0151 megfelel\u0151 UV-abszorberek \u00e9s f\u00e9nystabiliz\u00e1torok hozz\u00e1ad\u00e1sa a bevonatformul\u00e1ci\u00f3khoz<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[114],"tags":[],"class_list":["post-6172","post","type-post","status-publish","format-standard","hentry","category-catalysts-chemical-auxiliary-agents"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.3.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>What is the light aging protection of UV absorbers for coatings? - Longchang Chemical<\/title>\n<meta name=\"description\" content=\"UV absorbers and light stabilizers are effective in slowing down the light aging behavior of cured coatings. 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