{"id":5560,"date":"2022-09-14T09:15:26","date_gmt":"2022-09-14T09:15:26","guid":{"rendered":"https:\/\/longchangchemical.com\/?p=5560"},"modified":"2026-04-28T10:42:08","modified_gmt":"2026-04-28T10:42:08","slug":"uv-light-curing-coating-weather-resistance","status":"publish","type":"post","link":"https:\/\/longchangchemical.com\/hu\/uv-light-curing-coating-weather-resistance\/","title":{"rendered":"UV-f\u00e9nyben gy\u00f3gyul\u00f3 bevonat id\u0151j\u00e1r\u00e1s\u00e1ll\u00f3s\u00e1g"},"content":{"rendered":"<p>Az UV bevonatokat sz\u00e1mos fel\u00fcletbevon\u00e1si ter\u00fcleten haszn\u00e1lj\u00e1k kiv\u00e1l\u00f3 fel\u00fcleti tulajdons\u00e1gaik miatt: nagy szil\u00e1rds\u00e1g, nagy kem\u00e9nys\u00e9g, nagy kop\u00e1s\u00e1ll\u00f3s\u00e1g, nagy f\u00e9nyess\u00e9g, nagy old\u00f3szer\u00e1ll\u00f3s\u00e1g; az UV-h\u0151kezel\u00e9si technol\u00f3gia gyors h\u0151kezel\u00e9si sebess\u00e9g\u00e9vel, alacsony szennyez\u00e9s\u00e9vel \u00e9s energiatakar\u00e9koss\u00e1g\u00e1val k\u00f6rnyezetbar\u00e1t z\u00f6ld technol\u00f3gi\u00e1v\u00e1 v\u00e1lt. Az UV-bevonatok a sug\u00e1rz\u00e1ssal kikem\u00e9ny\u00edtett bevonatok mintegy 98% r\u00e9sz\u00e9t teszik ki. A belt\u00e9ri bevonatokt\u00f3l, mint p\u00e9ld\u00e1ul a padl\u00f3bevonatok \u00e9s a fa b\u00fatorbevonatok, az ipari bevonatokig, mint p\u00e9ld\u00e1ul a m\u0171anyag bevonatok, korr\u00f3zi\u00f3v\u00e9d\u0151 bevonatok, motorker\u00e9kp\u00e1r bevonatok \u00e9s aut\u00f3ipari bevonatok, egyre t\u00f6bb alkalmaz\u00e1s igazolja a Harbourne \"minden\u00fctt jelenl\u00e9v\u0151 sug\u00e1rz\u00e1ssal t\u00f6rt\u00e9n\u0151 kem\u00e9ny\u00edt\u00e9si technol\u00f3gia\" elk\u00e9pzel\u00e9s\u00e9t. Mivel az UV-bevonatokat k\u00fclt\u00e9ren haszn\u00e1lj\u00e1k, az id\u0151j\u00e1r\u00e1s\u00e1ll\u00f3s\u00e1g aggodalomra ad okot. Ez az \u00edr\u00e1s az UV fed\u0151lakkok id\u0151j\u00e1r\u00e1s\u00e1ll\u00f3s\u00e1g\u00e1nak el\u0151zetes t\u00e1rgyal\u00e1sa.<\/p>\n<p>1. Az id\u0151j\u00e1r\u00e1s\u00e1ll\u00f3s\u00e1g alapfogalma<br \/>\nA fest\u00e9k id\u0151j\u00e1r\u00e1s\u00e1ll\u00f3s\u00e1ga els\u0151sorban a mechanikai tulajdons\u00e1gokra, mint p\u00e9ld\u00e1ul a modulus, a szil\u00e1rds\u00e1g, a tapad\u00e1s \u00e9s az optikai tulajdons\u00e1gok (mint p\u00e9ld\u00e1ul a sz\u00edn- \u00e9s f\u00e9nyvisszatart\u00e1s), valamint a k\u00e9miai tulajdons\u00e1gok v\u00e1ltoz\u00e1saira (mint p\u00e9ld\u00e1ul a ridegs\u00e9g, a kr\u00e9ta \u00e9s a korr\u00f3zi\u00f3) vonatkozik, amikor a fest\u00e9k k\u00fclt\u00e9ri k\u00f6rnyezeti hat\u00e1soknak van kit\u00e9ve.<br \/>\nA f\u00e9ny, a leveg\u0151 \u00e9s a v\u00edz (savas es\u0151) hat\u00e1s\u00e1ra a bevonatok k\u00fclt\u00e9ri leboml\u00e1si folyamata f\u0151k\u00e9nt a f\u00e9ny \u00e1ltal kiv\u00e1ltott oxidat\u00edv leboml\u00e1st, a v\u00edz \u00e1ltali leboml\u00e1st, a termikus leboml\u00e1st \u00e9s a nagy energi\u00e1j\u00fa sug\u00e1rz\u00e1s okozta leboml\u00e1st foglalja mag\u00e1ban. 2.<\/p>\n<p>2. Az UV-kem\u00e9ny\u00edtett bevonatok k\u00fcl\u00f6nleges jellemz\u0151i<br \/>\nAz elm\u00e9letb\u0151l tudjuk, hogy a f\u00e9nyinduk\u00e1lt oxidat\u00edv degrad\u00e1ci\u00f3, a hidrol\u00edzis, a termikus degrad\u00e1ci\u00f3 \u00e9s a nagy energi\u00e1j\u00fa sug\u00e1rz\u00e1s okozta degrad\u00e1ci\u00f3 azok a t\u00e9nyez\u0151k, amelyek a bevonatfel\u00fclet id\u0151j\u00e1r\u00e1s\u00e1ll\u00f3s\u00e1g\u00e1nak roml\u00e1s\u00e1t okozz\u00e1k. Az id\u0151j\u00e1r\u00e1s\u00e1ll\u00f3s\u00e1g jav\u00edt\u00e1sa \u00e9rdek\u00e9ben a bevonat \u00f6sszet\u00e9tel\u00e9b\u0151l a lehet\u0151 legnagyobb m\u00e9rt\u00e9kben ki kell z\u00e1rni a k\u00f6vetkez\u0151 h\u00e1rom t\u00e9nyez\u0151t: (1) a 290 nm feletti hull\u00e1mhossz\u00fas\u00e1gok abszorpci\u00f3ja, (2) a hidrog\u00e9natom befog\u00e1s\u00e1ra hajlamos gyant\u00e1k \u00e9s (3) a hidrol\u00edzisre hajlamos funkci\u00f3s csoportok.<br \/>\nAz UV-bevonatok \u00f6sszet\u00e9tele azonban a fenti pontok k\u00f6z\u00fcl legal\u00e1bb kett\u0151vel rendelkezik: a fotoinici\u00e1tor elnyeli a 200~400 nm-es hull\u00e1mhosszakat; a fotoinici\u00e1tor akt\u00edv hidrog\u00e9natomokkal (gyant\u00e1b\u00f3l vagy adal\u00e9kanyagokb\u00f3l) szabad gy\u00f6k\u00f6ket hoz l\u00e9tre. Ez\u00e9rt az UV-kem\u00e9ny\u00edtett bevonatoknak m\u00e1r a kezdetekt\u0151l fogva probl\u00e9m\u00e1t jelent az id\u0151j\u00e1r\u00e1s\u00e1ll\u00f3s\u00e1g.<br \/>\nAz UV-bevonatok id\u0151j\u00e1r\u00e1si probl\u00e9m\u00e1ja els\u0151sorban a f\u00e9ny \u00e1ltali \u00f6reged\u00e9s. K\u00fcl\u00f6nleges jellemz\u0151i a k\u00f6vetkez\u0151k: UV-f\u00e9nyre van sz\u00fcks\u00e9ge a kikem\u00e9nyed\u00e9shez, \u00e9s az UV-f\u00e9nynek val\u00f3 hossz\u00fa ideig tart\u00f3 expoz\u00edci\u00f3 a film min\u0151s\u00e9g\u00e9nek roml\u00e1s\u00e1hoz vezet. A napf\u00e9ny UVA \u00e9s UVB hossz\u00fa t\u00e1v\u00fa besug\u00e1rz\u00e1ssal gy\u00f3gy\u00edt\u00f3 bevonat k\u00f6nnyen teszi a karbonil, aril \u00e9s m\u00e1s f\u00e9nyelnyel\u0151 csoportok keresztk\u00f6t\u00e9s\u0171 h\u00e1l\u00f3zat\u00e1t, valamint a marad\u00e9k fotoinici\u00e1tor, fotoinici\u00e1tor prom\u00f3ter (f\u00e9ny\u00e9rz\u00e9keny\u00edt\u0151) \u00e9s m\u00e1s f\u00e9nyelnyel\u0151 szennyez\u0151d\u00e9sek UVB vagy ak\u00e1r UVA abszorpci\u00f3t \u00e9s k\u00e9miai k\u00f6t\u00e9s \u00e1trendez\u0151d\u00e9s\u00e9t \u00e9s az \u00f6reged\u00e9s roml\u00e1s\u00e1t. K\u00fcls\u0151 oxig\u00e9nes k\u00f6r\u00fclm\u00e9nyek k\u00f6z\u00f6tt a molekul\u00e1ris oxig\u00e9n f\u00e9ny\u00e9rz\u00e9keny\u00edt\u00e9ssel nagy reakci\u00f3k\u00e9pess\u00e9g\u0171 egyvonalas oxig\u00e9nt hozhat l\u00e9tre, amely oxid\u00e1ci\u00f3s term\u00e9keket \u00e9s a makromolekul\u00e1ris polimerek fotodegrad\u00e1ci\u00f3j\u00e1t eredm\u00e9nyezi, valamint peroxilgy\u00f6k\u00f6ket \u00e9s hidrog\u00e9nbefog\u00e1st, hasad\u00e1st, keresztk\u00f6t\u00e9st, \u00e1trendez\u0151d\u00e9st \u00e9s egy\u00e9b reakci\u00f3kat is k\u00e9pezhet. Ennek eredm\u00e9nyek\u00e9ppen a modulus kisebb lesz, a s\u00e1rgul\u00e1s megn\u0151, a bevon\u00f3film t\u00f6r\u00e9kenny\u00e9 v\u00e1lik, \u00e9s az id\u0151j\u00e1r\u00e1s\u00e1ll\u00f3s\u00e1g romlik. Ez\u00e9rt rendk\u00edv\u00fcl fontos, hogy meg\u00e9rts\u00fck az UV-kem\u00e9ny\u00edtett bevonatok id\u0151j\u00e1r\u00e1si tulajdons\u00e1gait az \u00f6sszet\u00e9tel\u00fckb\u0151l kiindulva.<\/p>\n<p>3 A W fed\u0151r\u00e9teg id\u0151j\u00e1r\u00e1s\u00e1ll\u00f3s\u00e1g\u00e1t befoly\u00e1sol\u00f3 t\u00e9nyez\u0151k<\/p>\n<p>3.1 A gyanta \u00f6sszet\u00e9tele<br \/>\nUV kikem\u00e9ny\u00edtett bevonatok a fejleszt\u00e9s a gyanta rendszer tel\u00edtetlen poli\u00e9szter rendszer \u00e1tmenet akril\u00e1t rendszer, az akril szerkezet elemezhet\u0151, ha ez egy tiszta akril\u00e1t bevonat, az id\u0151j\u00e1r\u00e1s\u00e1ll\u00f3s\u00e1g kell kiv\u00e1l\u00f3, de a k\u00f6lts\u00e9gek miatt, \u00e9s a m\u00f3dos\u00edt\u00e1s sz\u00fcks\u00e9gess\u00e9ge \u00e9s a bevezet\u00e9se m\u00e1s funkci\u00f3s csoportok, amely megv\u00e1ltoztatja a szerkezeti tulajdons\u00e1gokat. Jelenleg a vil\u00e1gon legink\u00e1bb haszn\u00e1ltak m\u00e9g mindig az epoxiakril\u00e1t \u00e9s az uret\u00e1n akril\u00e1t gyant\u00e1k. A k\u00f6vetkez\u0151 k\u00eds\u00e9rletek lehet\u0151v\u00e9 teszik sz\u00e1munkra, hogy meg\u00e9rts\u00fck a gyant\u00e1k n\u00e9h\u00e1ny kateg\u00f3ri\u00e1j\u00e1nak id\u0151j\u00e1r\u00e1si tulajdons\u00e1gait.<\/p>\n<p>3.1.1 Nyersanyagok \u00e9s k\u00e9sz\u00edtm\u00e9nyek<br \/>\nEATM (standard biszfenol-A epoxiakril\u00e1t gyanta), UVU6609 (alif\u00e1s uret\u00e1n akril\u00e1t gyanta), UVP9200 (poli\u00e9szter akril\u00e1t gyanta), UVA1000 (tiszta akril\u00e1t gyanta), amelyek mind a Longchang vegyipari v\u00e1llalat term\u00e9kei; UVU6200 (arom\u00e1s poli\u00e9ter uret\u00e1n UVU6200 (arom\u00e1s poli\u00e9ter poliuret\u00e1n akril\u00e1t gyanta), Longchang vegyipari v\u00e1llalat; 1173 (2-hidroxi-2-metil-1-fenilaceton), Longchang vegyipari v\u00e1llalat TPGDA (tripropil\u00e9nglikol-diacril\u00e1t), Longchang vegyipari v\u00e1llalat.<\/p>\n<p>3.1.3 Az eredm\u00e9nyek megvitat\u00e1sa<br \/>\n(1) A biszfenol-A epoxi akrilgyanta a legelterjedtebb az UV alkalmaz\u00e1sokban, \u00e9s el\u0151nyei a gyors kikem\u00e9nyed\u00e9si sebess\u00e9gben, a magas f\u00e9nyess\u00e9gben \u00e9s a j\u00f3 kem\u00e9nys\u00e9gben t\u00fckr\u00f6z\u0151dnek. Mivel a gyant\u00e1ban l\u00e9v\u0151 Ar-O-R 290 nm feletti UV-f\u00e9nyt k\u00e9pes elnyelni, \u00e9s fotokrakkol\u00e1son megy kereszt\u00fcl, hogy szabad gy\u00f6k\u00f6ket termeljen \u00e9s r\u00e9szt vegyen az oxidat\u00edv leboml\u00e1sban, a s\u00e1rgul\u00e1s kezdetben er\u0151sebb UV-f\u00e9nyben s\u00falyosabb, de term\u00e9szetes k\u00f6r\u00fclm\u00e9nyek k\u00f6z\u00f6tt nem jelent\u0151s.<br \/>\n(2) A poliuret\u00e1n akrilgyant\u00e1k a reakci\u00f3ban r\u00e9szt vev\u0151 - NCO-csoport szerkezete alapj\u00e1n arom\u00e1s \u00e9s alif\u00e1s csoportba sorolhat\u00f3k. Az arom\u00e1s karbam\u00e1tok (Ar-NH-COOR) 290 nm-es UV-f\u00e9nyt is k\u00e9pesek elnyelni \u00e9s k\u00f6zvetlen\u00fcl kinonszerkezetekre hasadni.<br \/>\nEzenk\u00edv\u00fcl az \u00e9terk\u00f6t\u00e9sekkel rendelkez\u0151 poli\u00e9ter-poliuret\u00e1nok \u00e9terk\u00f6t\u00e9sei is nagyon \u00e9rz\u00e9kenyek a fotodegrad\u00e1ci\u00f3ra.<br \/>\nAz alif\u00e1s poliuret\u00e1nok els\u0151 kikem\u00e9nyed\u00e9s\u00fckkor enyh\u00e9n elsz\u00ednez\u0151dnek, de term\u00e9szetes k\u00f6r\u00fclm\u00e9nyek k\u00f6z\u00f6tt kiv\u00e1l\u00f3 id\u0151j\u00e1r\u00e1s\u00e1ll\u00f3s\u00e1got mutatnak, \u00e9s az egyenes l\u00e1ncszerkezet miatt a t\u00e9rh\u00e1l\u00f3s\u00edtott filmek valamivel kev\u00e9sb\u00e9 l\u00fag\u00e1ll\u00f3ak.<br \/>\n(3) A tiszta akril\u00e1tgyant\u00e1k kiv\u00e1l\u00f3 szerkezeti id\u0151j\u00e1r\u00e1s\u00e1ll\u00f3s\u00e1ggal rendelkeznek. B\u00e1r az akril\u00e1t polimerek kiv\u00e1l\u00f3 \u00f6reged\u00e9s\u00e1ll\u00f3s\u00e1ggal rendelkeznek, sz\u00e1mos h\u00e1tr\u00e1nya van, ha a bevonatok f\u0151 gyant\u00e1jak\u00e9nt haszn\u00e1lj\u00e1k: f\u0151k\u00e9nt a kikem\u00e9ny\u00edtett film gyenge sav- \u00e9s l\u00fag\u00e1ll\u00f3s\u00e1ggal, old\u00f3szer\u00e1ll\u00f3s\u00e1ggal rendelkezik, \u00e9s a filmk\u00e9pz\u00e9s ut\u00e1n 15 percig 10% KOH oldatban forralva a film a polimer hidrol\u00edzise miatt h\u00f3lyagosodik \u00e9s lev\u00e1lik.<br \/>\n(4) Poli\u00e9szter-akril\u00e1t gyanta, az el\u00e1gaz\u00f3 l\u00e1ncszerkezet miatt a keresztk\u00f6t\u00e9s er\u0151s\u00edt\u00e9se, szoros szerkezet, jobb szil\u00e1rds\u00e1g, old\u00f3szer\u00e1ll\u00f3s\u00e1g is er\u0151s. De a poli\u00e9szter szint\u00e9zis r\u00e9sze befoly\u00e1solja a s\u00e1rgul\u00e1s\u00e1t a benzolgy\u0171r\u0171 \u00e9s a heteroatomok sz\u00e1ma \u00e9s helyzete miatt.<br \/>\n3.2 Fotoinici\u00e1tor<br \/>\nAz UV-kem\u00e9ny\u00edtett bevonatokban a fotoinici\u00e1torok szabadgy\u00f6k\u00f6s inici\u00e1torok. Szerkezeti jellemz\u0151ik alapj\u00e1n a k\u00f6vetkez\u0151kre oszthat\u00f3k: karbonilvegy\u00fcletek, sz\u00ednez\u00e9kek, f\u00e9morganikus, halog\u00e9ntartalm\u00fa vegy\u00fcletek, azovegy\u00fcletek \u00e9s peroxivegy\u00fcletek. A szabadgy\u00f6k-k\u00e9pz\u0151d\u00e9s mechanizmusa szerint a szabadgy\u00f6k-k\u00e9pz\u0151d\u00e9s t\u00edpus\u00e1t has\u00edt\u00f3 \u00e9s hidrog\u00e9n-elvon\u00f3 t\u00edpusra lehet osztani.<br \/>\nJelenleg a glob\u00e1lis ipari alkalmaz\u00e1s m\u00e9g mindig f\u0151k\u00e9nt a szabad gy\u00f6k t\u00edpus\u00fa inici\u00e1tor, m\u00e1s oszt\u00e1lyok csak nagyon kis mennyis\u00e9gben haszn\u00e1latosak, \u00e9s m\u00e9g az egyes oszt\u00e1lyokat is csak laborat\u00f3riumban haszn\u00e1lj\u00e1k. K\u00edn\u00e1ban els\u0151sorban 1173, 184 (1-hidroxi-ciklohexil-fenil-keton, Longchang vegyi anyag), TPO (2,4,6-trimetil-benzoil-difenil-foszfin-oxid, Longchang vegyi anyag) \u00e9s m\u00e1s has\u00edt\u00f3 t\u00edpus\u00fa \u00e9s BP (benzofenon, Longchang vegyi anyag), ITX (izopropil-tioantron, Longchang vegyi anyag), CTX (2,4-dikl\u00f3r-tioxantron, Longchang vegyi anyag) \u00e9s m\u00e1s hidrog\u00e9n extrakci\u00f3s t\u00edpusok.<br \/>\n3.2.1 Hasad\u00e1si t\u00edpus<br \/>\nA has\u00edt\u00f3 t\u00edpus\u00fa fotoinici\u00e1tort akril\u00e1t rendszerben alkalmazz\u00e1k, amely nem k\u00f6nnyen s\u00e1rgul vagy kis s\u00e1rgul\u00e1si egy\u00fctthat\u00f3val rendelkezik. Ennek f\u0151 oka az, hogy a szubsztitu\u00e1lt benzil v\u00f6r\u00f6seltol\u00f3d\u00e1si hull\u00e1mhossza kicsi, \u00e9s nem k\u00f6nny\u0171 rezonanciaelsz\u00ednez\u0151d\u00e9st el\u0151id\u00e9zni. Kellemetlen szaga azonban alkalmaz\u00e1si akad\u00e1lyt jelent.<br \/>\n3.2.2 Hidrog\u00e9n extrakci\u00f3 t\u00edpusa<br \/>\nAz ilyen t\u00edpus\u00fa fotoinici\u00e1tornak akt\u00edv hidrog\u00e9nt tartalmaz\u00f3 vegy\u00fcletekkel kell egy\u00fctt lennie, hogy bimolekul\u00e1ris reakci\u00f3kat hozzon l\u00e9tre, \u00e9s szabad gy\u00f6k\u00f6ket hozzon l\u00e9tre a reakci\u00f3 el\u0151seg\u00edt\u00e9s\u00e9re. Az akt\u00edv hidrog\u00e9nt biztos\u00edt\u00f3 vegy\u00fcletek (m\u00e1s n\u00e9ven fotoszenzibiliz\u00e1torok) f\u0151k\u00e9nt tercier aminok, trietanolamin, akt\u00edv aminok, \u00e9s a k\u00fcl\u00f6nb\u00f6z\u0151 fotoszenzibiliz\u00e1torokkal v\u00e9gzett k\u00eds\u00e9rletek megmutathatj\u00e1k a bevon\u00f3film s\u00e1rgul\u00e1s\u00e1val val\u00f3 kapcsolatukat.<br \/>\nA f\u00e9ny\u00e9rz\u00e9keny\u00edt\u0151k jelenl\u00e9te val\u00f3sz\u00edn\u0171leg a sz\u00ednkibocs\u00e1t\u00f3 csoportok jelenl\u00e9t\u00e9nek is k\u00f6sz\u00f6nhet\u0151: amino- vagy arom\u00e1s gy\u0171r\u0171kh\u00f6z konjug\u00e1lt karbonilcsoportok, amelyek fokozz\u00e1k a s\u00e1rgul\u00e1si \u00e9s leboml\u00e1si reakci\u00f3t. Egy m\u00e1sik ok az, hogy a fotoinici\u00e1tor UV bevonatokban marad 1~2% a rendszerben reag\u00e1lni, ez a r\u00e9sze a fotoinici\u00e1tor term\u00e9szetes f\u00e9ny abszorpci\u00f3ja ultraibolya f\u00e9ny okozta marad\u00e9k kett\u0151s k\u00f6t\u00e9s m\u00e9ly keresztk\u00f6t\u00e9s, ami elsz\u00ednez\u0151d\u00e9s, reped\u00e9s vagy r\u00e1ncosod\u00e1s a bevonat film.<br \/>\n3.3 Monomer<br \/>\nA k\u00fcl\u00f6nb\u00f6z\u0151 monomerek k\u00fcl\u00f6nb\u00f6z\u0151 reakci\u00f3sebess\u00e9ggel reag\u00e1lnak a kem\u00e9nyed\u00e9si folyamat sor\u00e1n, min\u00e9l gyorsabb a reakci\u00f3, ann\u00e1l t\u00f6bb kett\u0151s k\u00f6t\u00e9s marad vissza a monomerben. Az \u00e9terk\u00f6t\u00e9sekkel rendelkez\u0151 funkci\u00f3s csoportok jelenl\u00e9te hajlamos a fotodegrad\u00e1ci\u00f3ra, \u00edgy a TPGDA, DPGDA (dipropil\u00e9nglikol-diacril\u00e1t), (EO)TMPTA (etoxitrimetilolprop\u00e1ntrikril\u00e1t), (PO)TMPTA (propoxitrimetilolprop\u00e1ntrikril\u00e1t) \u00e9s m\u00e1s, alkohol-kondenz\u00e1lt \u00e9terszerkezetet tartalmaz\u00f3 monomerek hajlamosabbak a fotodegrad\u00e1ci\u00f3s reakci\u00f3ra, azt jelentett\u00e9k, hogy az etoxi, mint a propil\u00e9n-oxid szerkezet kev\u00e9sb\u00e9 stabil, mint a f\u00e9ny. Az etoxiszerkezet f\u00e9nystabilit\u00e1sa rosszabb, mint a propoxiszerkezet\u00e9, \u00e9s a f\u00e9nystabilit\u00e1s sorrendje t\u00f6bb hagyom\u00e1nyos monomer k\u00f6z\u00f6tt a k\u00f6vetkez\u0151.<br \/>\nTMPTA &gt; NPGDA (neopentilglikol-diacril\u00e1t) &gt; HDDA &gt; TPGDA &gt; (EO)TMPTA \u2248 (P0)TMPTA<\/p>\n<p>4 Int\u00e9zked\u00e9sek az UV-fed\u0151r\u00e9teg id\u0151j\u00e1r\u00e1s\u00e1ll\u00f3s\u00e1g\u00e1nak jav\u00edt\u00e1s\u00e1ra<\/p>\n<p>4.1 A gyanta kiv\u00e1laszt\u00e1sa<br \/>\nA k\u00fclt\u00e9ri UV-fest\u00e9kek id\u0151j\u00e1r\u00e1s\u00e1ll\u00f3s\u00e1g\u00e1nak jav\u00edt\u00e1sa \u00e9rdek\u00e9ben olyan gyant\u00e1kat kell kiv\u00e1lasztani, amelyek ellen\u00e1llnak a s\u00e1rgul\u00e1snak, a bevonatfilm modulus\u00e1nak a k\u00f6rnyezeti v\u00e1ltoz\u00e1sokhoz val\u00f3 alkalmazkod\u00e1shoz sz\u00fcks\u00e9ges v\u00e1ltoz\u00e1s\u00e1nak, nagy kem\u00e9nys\u00e9g\u00e9nek, j\u00f3 rugalmass\u00e1g\u00e1nak \u00e9s karc\u00e1ll\u00f3s\u00e1g\u00e1nak. A legmegfelel\u0151bb gyanta ezekre a k\u00f6vetelm\u00e9nyekre a t\u00f6bb funkci\u00f3s csoportot tartalmaz\u00f3 alif\u00e1s akril\u00e1t poliuret\u00e1ngyanta. A k\u00f6lts\u00e9gek cs\u00f6kkent\u00e9se \u00e9rdek\u00e9ben v\u00e1laszthatjuk a m\u00f3dos\u00edtott epoxi-akril\u00e1t gyanta \u00e9s az alif\u00e1s uret\u00e1n-akril\u00e1t vagy a tiszta akrilgyanta kombin\u00e1ci\u00f3j\u00e1nak egy r\u00e9sz\u00e9t is.<\/p>\n<p>4.2 A monomer kiv\u00e1laszt\u00e1sa<br \/>\nA monomerek haszn\u00e1lat\u00e1ban ellentmond\u00e1s van: a b\u0151rirrit\u00e1ci\u00f3 szempontj\u00e1b\u00f3l az alkoxi\u00e1lt akril\u00e1t monomerekb\u0151l kell v\u00e1lasztani, az id\u0151j\u00e1r\u00e1s\u00e1ll\u00f3s\u00e1g szempontj\u00e1b\u00f3l nem szabad az alkoxi\u00e1lt akril\u00e1t monomerekb\u0151l v\u00e1lasztani. A szerz\u0151 azt javasolja, hogy a monomerek legjobb v\u00e1laszt\u00e1sa az id\u0151j\u00e1r\u00e1s\u00e1ll\u00f3 fed\u0151r\u00e9tegekhez a k\u00f6vetkez\u0151: TMPTA, HDDA, TPGDA, amelyek cs\u00f6kkenthetik a fotodegrad\u00e1ci\u00f3t.<\/p>\n<p>4.3 A fotoinici\u00e1torok kiv\u00e1laszt\u00e1sa<br \/>\nA hidrog\u00e9n-emel\u0151 fotoinici\u00e1tor s\u00e1rgul\u00e1si egy\u00fctthat\u00f3ja nagyobb, \u00e1ltal\u00e1ban a reped\u00e9s t\u00edpus\u00e1t kell v\u00e1lasztani a s\u00e1rgul\u00e1s cs\u00f6kkent\u00e9se \u00e9rdek\u00e9ben, \u00e1ltal\u00e1ban az 1173, 184, TPO \u00e9s m\u00e1s t\u00edpusokat v\u00e1lasztj\u00e1k a tiszta bevonat vagy a sz\u00ednes rendszer alkalmaz\u00e1sokban.<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<table style=\"border-collapse: collapse; width: 435.77pt;\" border=\"0\" width=\"581\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt; width: 215.25pt;\" width=\"287\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/hu\/product\/photoinitiator-tpo-cas-75980-60-8\/\"><span style=\"color: #00ccff;\">Fotoinici\u00e1tor TPO<\/span><\/a><\/td>\n<td style=\"width: 220.50pt;\" width=\"294\">CAS 75980-60-8<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/hu\/product\/cas-270586-78-2\/\"><span style=\"color: #00ccff;\">Fotoinici\u00e1tor TMO<\/span><\/a><\/td>\n<td>CAS 270586-78-2<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/hu\/product\/photoinitiator-pd-01-cas-579-07-7\/\"><span style=\"color: #00ccff;\">PD-01 fotoinici\u00e1tor<\/span><\/a><\/td>\n<td>CAS 579-07-7<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/hu\/product\/photoinitiator-pbz-cas-2128-93-0\/\"><span style=\"color: #00ccff;\">Fotoinici\u00e1tor PBZ<\/span><\/a><\/td>\n<td>CAS 2128-93-0<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/hu\/product\/photoinitiator-oxe-02-cas-478556-66-0\/\"><span style=\"color: #00ccff;\">OXE-02 fotoinici\u00e1tor<\/span><\/a><\/td>\n<td>CAS 478556-66-0<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/hu\/product\/photoinitiator-ombb\/\"><span style=\"color: #00ccff;\">Fotoinici\u00e1tor OMBB<\/span><\/a><\/td>\n<td>CAS 606-28-0<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/hu\/product\/photoinitiator-mpbz-6012\/\"><span style=\"color: #00ccff;\">Fotoinici\u00e1tor MPBZ (6012)<\/span><\/a><\/td>\n<td>CAS 86428-83-3<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/hu\/product\/photoinitiator-mbp-cas-134-84-9\/\"><span style=\"color: #00ccff;\">Fotoinici\u00e1tor MBP<\/span><\/a><\/td>\n<td>CAS 134-84-9<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/hu\/product\/photoinitiator-mbf-cas-15206-55-0\/\"><span style=\"color: #00ccff;\">Fotoinici\u00e1tor MBF<\/span><\/a><\/td>\n<td>CAS 15206-55-0<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/hu\/product\/photoinitiator-lap-cas-85073-19-4\/\"><span style=\"color: #00ccff;\">Fotoinici\u00e1tor LAP<\/span><\/a><\/td>\n<td>CAS 85073-19-4<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/hu\/product\/photoinitiator-itx-cas-5495-84-1\/\"><span style=\"color: #00ccff;\">Fotoinici\u00e1tor ITX<\/span><\/a><\/td>\n<td>CAS 5495-84-1<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/hu\/product\/photoinitiator-emk\/\"><span style=\"color: #00ccff;\">EMK fotoinici\u00e1tor<\/span><\/a><\/td>\n<td>CAS 90-93-7<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/hu\/product\/photoinitiator-eha-cas-21245-02-3\/\"><span style=\"color: #00ccff;\">Fotoinici\u00e1tor EHA<\/span><\/a><\/td>\n<td>CAS 21245-02-3<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/hu\/product\/photoinitiator-edb-cas-10287-53-3\/\"><span style=\"color: #00ccff;\">Fotoinici\u00e1tor EDB<\/span><\/a><\/td>\n<td>CAS 10287-53-3<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/hu\/product\/photoinitiator-detx-cas-82799-44-8\/\"><span style=\"color: #00ccff;\">DETX fotoinici\u00e1tor<\/span><\/a><\/td>\n<td>CAS 82799-44-8<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/hu\/product\/photoinitiator-cq\/\"><span style=\"color: #00ccff;\">Fotoinici\u00e1tor CQ \/ k\u00e1mforkinon<\/span><\/a><\/td>\n<td>CAS 10373-78-1<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/hu\/product\/photoinitiator-cbp-cas-134-85-0\/\"><span style=\"color: #00ccff;\">Fotoinici\u00e1tor CBP<\/span><\/a><\/td>\n<td>CAS 134-85-0<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/hu\/product\/photoinitiator-bp-cas-119-61-9\/\"><span style=\"color: #00ccff;\">BP \/ benzofenon fotoinici\u00e1tor<\/span><\/a><\/td>\n<td>CAS 119-61-9<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/hu\/product\/photoinitiator-bms\/\"><span style=\"color: #00ccff;\">Fotoinici\u00e1tor BMS<\/span><\/a><\/td>\n<td>CAS 83846-85-9<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/hu\/product\/photoinitiator-938\/\"><span style=\"color: #00ccff;\">F\u00e9nykezdem\u00e9nyez\u0151 938<\/span><\/a><\/td>\n<td>CAS 61358-25-6<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/hu\/product\/photoinitiator-937-cas-71786-70-4\/\"><span style=\"color: #00ccff;\">Fotoinici\u00e1tor 937<\/span><\/a><\/td>\n<td>CAS 71786-70-4<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/hu\/product\/photoinitiator-819-dw\/\"><span style=\"color: #00ccff;\">Fotoinici\u00e1tor 819 DW<\/span><\/a><\/td>\n<td>CAS 162881-26-7<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/hu\/product\/photoinitiator-819-irgacure-819-cas-162881-26-7\/\"><span style=\"color: #00ccff;\">Fotoinici\u00e1tor 819<\/span><\/a><\/td>\n<td>CAS 162881-26-7<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/hu\/product\/photoinitiator-784-cas-125051-32-3\/\"><span style=\"color: #00ccff;\">Fotoinici\u00e1tor 784<\/span><\/a><\/td>\n<td>CAS 125051-32-3<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/hu\/product\/photoinitiator-754-cas-211510-16-6-442536-99-4\/\"><span style=\"color: #00ccff;\">754 fotoinici\u00e1tor<\/span><\/a><\/td>\n<td>CAS 211510-16-6 442536-99-4<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/hu\/product\/photoinitiator-6993-cas-71449-78-0\/\"><span style=\"color: #00ccff;\">Fotoinici\u00e1tor 6993<\/span><\/a><\/td>\n<td>CAS 71449-78-0<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/hu\/product\/photoinitiator-6976\/\"><span style=\"color: #00ccff;\">6976 fotoinici\u00e1tor<\/span><\/a><\/td>\n<td>CAS 71449-78-0 89452-37-9 108-32-7<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/hu\/product\/photoinitiator-379-cas-119344-86-4\/\"><span style=\"color: #00ccff;\">Fotoinici\u00e1tor 379<\/span><\/a><\/td>\n<td>CAS 119344-86-4<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/hu\/product\/photoinitiator-369-cas-119313-12-1\/\"><span style=\"color: #00ccff;\">Fotoinici\u00e1tor 369<\/span><\/a><\/td>\n<td>CAS 119313-12-1<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><span style=\"color: #00ccff;\"><a style=\"color: #00ccff;\" href=\"https:\/\/longchangchemical.com\/hu\/product\/photoinitiator-160\/\">Fotoinici\u00e1tor 160<\/a><\/span><\/td>\n<td>CAS 71868-15-0<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/hu\/product\/photoinitiator-1206\/\"><span style=\"color: #00ccff;\">F\u00e9nyind\u00edt\u00f3 1206<\/span><\/a><\/td>\n<td><\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/hu\/product\/irgacure-1173-cas-7473-98-5\/\"><span style=\"color: #00ccff;\">1173 fotoinici\u00e1tor<\/span><\/a><\/td>\n<td>CAS 7473-98-5<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<p>4.4 Egy\u00e9b adal\u00e9kanyagok kiv\u00e1laszt\u00e1sa<br \/>\n(1) UV-abszorber<br \/>\nM\u00e1s t\u00edpus\u00fa bevonatokn\u00e1l az UV-abszorbereket \u00e1ltal\u00e1ban a polimerek UV-abszorpci\u00f3j\u00e1nak cs\u00f6kkent\u00e9s\u00e9re haszn\u00e1lj\u00e1k, vagy egyszer\u0171 gerjesztett \u00e1llapot\u00fa csapd\u00e1z\u00f3kat adnak hozz\u00e1 a szabad gy\u00f6k\u00f6k elt\u00e1vol\u00edt\u00e1s\u00e1ra az id\u0151j\u00e1r\u00e1s\u00e1ll\u00f3s\u00e1g jav\u00edt\u00e1sa \u00e9rdek\u00e9ben. Az UV-vel kikem\u00e9ny\u00edtett bevonatoknak maxim\u00e1lis UV f\u00e9nyelnyel\u00e9sre van sz\u00fcks\u00e9g\u00fck ahhoz, hogy a kikem\u00e9nyed\u00e9s sor\u00e1n t\u00f6bb gy\u00f6k keletkezzen, ez\u00e9rt az UV-abszorberek hozz\u00e1ad\u00e1sa t\u00f6bb\u00e9-kev\u00e9sb\u00e9 le\u00e1rny\u00e9kolja a rendszerben l\u00e9v\u0151 fotoinici\u00e1tort, ami alacsonyabb kikem\u00e9nyed\u00e9si sebess\u00e9get \u00e9s alacsonyabb polimer konverzi\u00f3t eredm\u00e9nyez. A legjobb &lt;0,1 % hozz\u00e1ad\u00e1si mennyis\u00e9get vizsg\u00e1lt\u00e1k, \u00e9s a formamidin hozz\u00e1ad\u00e1sa jobb, mint a benzotriazol \u00e9s az arom\u00e1s \u00e9szter vegy\u00fcletek\u00e9.<\/p>\n<p>(2) Akad\u00e1lyozott amin f\u00e9nystabiliz\u00e1torok (HALS) \u00e9s antioxid\u00e1nsok<br \/>\nA HALS f\u0151 jellemz\u0151je a fotooxid\u00e1ci\u00f3 nitron gy\u00f6k\u00f6kk\u00e9 (R2NO - ), R: NO - a polimer gy\u00f6k\u00f6kben \u00e9s a reakci\u00f3 befejez\u00e9se a diszkordancia reakci\u00f3 vagy a kapcsol\u00e1si reakci\u00f3 \u00e1ltal, illetve hidroxil-aminok \u00e9s \u00e9terek hidroxil-aminok \u00e9s \u00e9terek el\u0151\u00e1ll\u00edt\u00e1sa \u00e9rdek\u00e9ben, majd hidroperoxidokk\u00e1 bomlik, \u00e9s ezt k\u00f6vet\u0151en keletkezik R: NO -\u00e9s \u00edgy tov\u00e1bb, ami nagyban cs\u00f6kkenti a gyanta leboml\u00e1s\u00e1nak lehet\u0151s\u00e9g\u00e9t. Egyes szak\u00e9rt\u0151k \u00fagy v\u00e9lik, hogy a HALS hozz\u00e1ad\u00e1sa el\u0151ny\u00f6s lesz az UV-bevonatok id\u0151j\u00e1r\u00e1s\u00e1ll\u00f3s\u00e1ga szempontj\u00e1b\u00f3l.<br \/>\nUgyanaz az elv, mint az UV-abszorber, a HALS hozz\u00e1ad\u00e1sa is zavarja a szabad gy\u00f6k\u00f6k reakci\u00f3j\u00e1t a f\u00e9nykem\u00e9nyed\u00e9si folyamatban. 0,1% hozz\u00e1ad\u00e1sa 0,05%-hez, matt bevonatrendszerben (f\u00e9nyess\u00e9g &lt;50 60\u00b0-on), az a jelens\u00e9g, hogy a fel\u00fclet egy\u00e1ltal\u00e1n nem sz\u00e1rad meg. Ez\u00e9rt nem aj\u00e1nlott a HALS hozz\u00e1ad\u00e1sa.<br \/>\nAz antioxid\u00e1nsokat el\u0151oxid\u00e1nsokra \u00e9s l\u00e1ncbont\u00f3 antioxid\u00e1nsokra osztj\u00e1k. Mivel els\u0151sorban a peroxid reakci\u00f3j\u00e1t g\u00e1tolja a redoxireakci\u00f3val, kev\u00e9sb\u00e9 hat az UV-kem\u00e9ny\u00edt\u00e9sre, ez\u00e9rt opcion\u00e1lis, \u00e9s \u00e1ltal\u00e1ban jobb a trifenilfoszfitot v\u00e1lasztani.<br \/>\n(3) R\u00e9szben \u00e1tl\u00e1tsz\u00f3 sz\u00ednez\u00e9kek kiv\u00e1laszt\u00e1sa<br \/>\nA s\u00f6t\u00e9t vagy egysz\u00edn\u0171 bevonatok m\u00e9g mindig probl\u00e9m\u00e1t jelentenek az UV-bevonatok sz\u00e1m\u00e1ra, de a v\u00e9kony bevonatokhoz &lt; 3% \u00e1tl\u00e1tsz\u00f3 sz\u00ednez\u00e9kek adhat\u00f3k hozz\u00e1, hogy er\u0151s\u00edts\u00e9k a term\u00e9szetes f\u00e9ny UVA \u00e1rny\u00e9kol\u00e1s\u00e1t, k\u00fcl\u00f6n\u00f6sen a napf\u00e9ny abszorpci\u00f3j\u00e1t vagy visszaver\u0151d\u00e9s\u00e9t a 330 ~ 400 nm-es ultraibolya f\u00e9nyben, hogy cs\u00f6kkents\u00e9k a bevonat f\u00e9ny\u00e9nek \u00f6reged\u00e9s\u00e9t.<\/p>\n<h2><strong>F\u00e9nystabiliz\u00e1torok Ugyanaz a sorozat term\u00e9kei<\/strong><\/h2>\n<p><!-- lc-qa-start --><\/p>\n<p><strong>Quick answer:<\/strong> Antioxidants and stabilizers are usually selected by heat history, long-term aging target, color requirements, and whether the system needs a single grade or a package. The best commercial answer often comes from synergy, not from one product alone.<\/p>\n<p><!-- lc-qa-end --><\/p>\n<table width=\"546\">\n<tbody>\n<tr>\n<td width=\"399\">\n<h4><a href=\"https:\/\/longchangchemical.com\/hu\/product\/hals-119-light-stabilizer-119-chimassorb-119\/\"><span style=\"color: #0000ff;\">HALS 119 \/ F\u00c9NYSTABILIZ\u00c1TOR 119 \/ CHIMASSORB 119<\/span><\/a><\/h4>\n<\/td>\n<td width=\"147\">\n<h4>106990-43-6<\/h4>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<h4><a href=\"https:\/\/longchangchemical.com\/hu\/product\/light-stabilizer-123-tinuvin-123-cas-129757-67-1\/\"><span style=\"color: #0000ff;\">HALS 123 \/ F\u00c9NYSTABILIZ\u00c1TOR 123 \/ TINUVIN 123<\/span><\/a><\/h4>\n<\/td>\n<td>\n<h4>129757-67-1<\/h4>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<h4><a href=\"https:\/\/longchangchemical.com\/hu\/product\/light-stabilizer-622-tinuvin-622-cas-65447-77-0\/\"><span style=\"color: #0000ff;\">HALS 622 \/ K\u00d6NNY\u0170 STABILIZ\u00c1TOR 622 \/ TINUVIN 622<\/span><\/a><\/h4>\n<\/td>\n<td>\n<h4><span style=\"color: #000000;\">65447-77-0<\/span><\/h4>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<h4><a href=\"https:\/\/longchangchemical.com\/hu\/product\/light-stabilizer-770-tinuvin-770-cas-52829-07-9\/\"><span style=\"color: #0000ff;\">HALS 770 \/ K\u00d6NNY\u0170 STABILIZ\u00c1TOR 770 \/ TINUVIN 770<\/span><\/a><\/h4>\n<\/td>\n<td>\n<h4>52829-07-9<\/h4>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<h4><a href=\"https:\/\/longchangchemical.com\/hu\/product\/uv-light-stabilizer-783-tinuvin-783\/\"><span style=\"color: #0000ff;\">HALS 783 \/ UV F\u00c9NYSTABILIZ\u00c1TOR 783 \/ TINUVIN 783<\/span><\/a><\/h4>\n<\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>\n<h4><a href=\"https:\/\/longchangchemical.com\/hu\/product\/light-stabilizer-791-tinuvin-791\/\"><span style=\"color: #0000ff;\">HALS 791 \/ K\u00d6NNY\u0170 STABILIZ\u00c1TOR 791 \/ TINUVIN 791<\/span><\/a><\/h4>\n<\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>\n<h4><a href=\"https:\/\/longchangchemical.com\/hu\/product\/light-stabilizer-944-cas-70624-18-9\/\"><span style=\"color: #0000ff;\">HALS 944 F\u00c9NYSTABILIZ\u00c1TOR-944 CHIMASORB 944<\/span><\/a><\/h4>\n<\/td>\n<td>\n<h4>70624-18-9 \/ 71878-19-8<\/h4>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<p>(4) A fluoreszk\u00e1l\u00f3 feh\u00e9r\u00edt\u0151szer kiv\u00e1laszt\u00e1sa<br \/>\nA fluoreszcens f\u00e9nyes\u00edt\u0151szereket az UV-f\u00e9ny elnyel\u00e9s\u00e9re haszn\u00e1lj\u00e1k, \u00e9s a bevonat k\u00e9k vagy lila sz\u00edn\u0171 lesz, ami azt jelenti, hogy a bevonat \"k\u00e9k f\u00e9ny\u0171\" lesz, hogy kik\u00fcsz\u00f6b\u00f6lje a s\u00e1rga sz\u00ednt. A fluoreszcens feh\u00e9r\u00edt\u0151szer haszn\u00e1lata ut\u00e1n probl\u00e9ma, hogy a feh\u00e9r\u00edt\u0151szer versenyez a fotoinici\u00e1torral a f\u00e9ny elnyel\u00e9s\u00e9re, ez\u00e9rt magas inici\u00e1l\u00e1si hat\u00e9konys\u00e1g\u00fa fotoinici\u00e1tort kell v\u00e1lasztani.<\/p>\n<p>5 K\u00f6vetkeztet\u00e9s<br \/>\n(1) A gyanta, a fotoinici\u00e1tor \u00e9s a monomer szerkezet\u00e9t az UV-fed\u0151r\u00e9teg \u00f6sszet\u00e9tel\u00e9b\u0151l elemezt\u00e9k, hogy befoly\u00e1solja az id\u0151j\u00e1r\u00e1s\u00e1ll\u00f3s\u00e1got.<br \/>\n(2) Az alif\u00e1s poliuret\u00e1n-akril\u00e1t gyanta \u00e9s a repeszt\u0151 fotoinici\u00e1tor \u00e9s t\u00f6bb monomer v\u00e1laszt\u00e1sa alkoxil\u00e1l\u00e1s n\u00e9lk\u00fcl jav\u00edthatja a bevon\u00f3film id\u0151j\u00e1r\u00e1s\u00e1ll\u00f3s\u00e1g\u00e1t.<br \/>\n(3) Az adal\u00e9kanyagok kiv\u00e1laszt\u00e1s\u00e1b\u00f3l azt javasolj\u00e1k, hogy kis mennyis\u00e9g\u0171 UV-abszorberek, antioxid\u00e1nsok \u00e9s sz\u00ednez\u00e9kek hozz\u00e1ad\u00e1s\u00e1val a term\u00e9szetes f\u00e9ny UV-f\u00e9ny\u00e9t le lehet \u00e1rny\u00e9kolni, hogy cs\u00f6kkents\u00e9k a foto\u00f6reged\u00e9st; a fluoreszk\u00e1l\u00f3 feh\u00e9r\u00edt\u0151szereket a k\u00e9k kieg\u00e9sz\u00edt\u00e9s\u00e9re haszn\u00e1lj\u00e1k a s\u00e1rgul\u00e1s kik\u00fcsz\u00f6b\u00f6l\u00e9s\u00e9re.<\/p>\n<p><!-- lc-commercial-start --><\/p>\n<h2>A practical selection route for antioxidant, UV absorber, and HALS packages<\/h2>\n<p>Most stabilizer decisions work best when they are treated as package decisions rather than single-product decisions. Technical buyers usually get the strongest answer by reviewing long-term heat aging, process stability, weather exposure, and color sensitivity together.<\/p>\n<ul>\n<li><strong>Separate processing protection from long-term stability:<\/strong> the best additive for melt history is not always the same one that gives the best service-life retention.<\/li>\n<li><strong>Use synergy deliberately:<\/strong> many polymer and coating systems perform best when primary and secondary stabilizers are paired intentionally.<\/li>\n<li><strong>Review color and clarity requirements:<\/strong> clear, pale, food-contact, or white systems often need a tighter package than dark industrial products.<\/li>\n<li><strong>Check the real aging condition:<\/strong> heat, UV, humidity, and outdoor exposure can each change which stabilizer route is commercially strongest.<\/li>\n<\/ul>\n<h3>Recommended product references<\/h3>\n<ul>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/hu\/product\/photoinitiator-tpo-l-cas-84434-11-7\/\">CHLUMINIT TPO-L<\/a>:<\/strong> A strong low-yellowing reference for LED-oriented UV systems.<\/li>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/hu\/product\/cas-270586-78-2\/\">CHLUMINIT TMO<\/a>:<\/strong> A valuable comparison point when lower yellowing or TPO-replacement discussions matter.<\/li>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/hu\/product\/photoinitiator-819-irgacure-819-cas-162881-26-7\/\">CHLUMINIT 819<\/a>:<\/strong> Useful when a formulation needs stronger absorption and deeper cure support.<\/li>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/hu\/product\/photoinitiator-184-cas-947-19-3\/\">CHLUMINIT 184<\/a>:<\/strong> A classic free-radical benchmark for fast surface cure in many UV systems.<\/li>\n<\/ul>\n<h3>FAQ for buyers and formulators<\/h3>\n<p><strong>Why are stabilizer packages often stronger than a single additive?<\/strong><br \/>Because different products can protect different parts of the degradation pathway, so the package often covers more risk than one grade alone.<\/p>\n<p><strong>Does adding more antioxidant or UV stabilizer always improve performance?<\/strong><br \/>Not necessarily. Over-dosing can increase cost and sometimes create side effects, so most systems perform best inside a tested dosage window.<\/p>\n<p><!-- lc-commercial-end --><\/p>\n<h2><strong><b>L\u00e9pjen kapcsolatba vel\u00fcnk most!<\/b><\/strong><\/h2>\n<h4><strong><b>Ha COA, MSDS vagy TDS-re van sz\u00fcks\u00e9ge, k\u00e9rj\u00fck, t\u00f6ltse ki el\u00e9rhet\u0151s\u00e9g\u00e9t az al\u00e1bbi \u0171rlapon, \u00e1ltal\u00e1ban 24 \u00f3r\u00e1n bel\u00fcl felvessz\u00fck \u00d6nnel a kapcsolatot. \u00d6n is k\u00fcldhet nekem e-mailt <span style=\"color: #0000ff;\"><a style=\"color: #0000ff;\" href=\"mailto:info@longchangchemical.com\">info@longchangchemical.com<\/a><\/span> munkaid\u0151ben ( 8:30-18:00 UTC+8 H.-Szombat ) vagy haszn\u00e1lja a weboldal \u00e9l\u0151 chatj\u00e9t, hogy azonnali v\u00e1laszt kapjon.<\/b><\/strong><\/h4>","protected":false},"excerpt":{"rendered":"<p>UV coatings are used in many surface coating fields for their excellent surface properties: high strength, high hardness, high abrasion resistance, high gloss, high solvent resistance; UV curing technology has<\/p>","protected":false},"author":1,"featured_media":5414,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[114],"tags":[],"class_list":["post-5560","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-catalysts-chemical-auxiliary-agents"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.3.1 - 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