Zeziphi izithako zokwaleka kweUV ezinyangekayo?

I-Ultraviolet curing (UV) i-coating luhlobo olutsha lokukhusela indalo.Isantya sokumisa kwayo sikhawuleza kakhulu.Inokunyangwa kukukhanya kwe-UV kwimizuzwana embalwa, kwaye ukusebenza kakuhle kwemveliso kuphezulu.

Iingubo ezinyangekayo ze-UV zenziwa ikakhulu zii-oligomers, ii-diluents ezisebenzayo, ii-photoinitiators kunye nezongezo.

1. oligomer

Ukwenziwa kwefilimu yeyona nto iphambili yokwaleka, kwaye yinxalenye yolwelo lokwaleka.Ukusebenza kwefilimu, ukusebenza kunye nezinye iimpawu ezikhethekileyo zokugquma ngokuyinhloko zixhomekeke kwizinto zokwenza ifilimu.Ifilimu yokwenza ifilimu ye-UV yokugqoka i-oligomer.Ukusebenza kwayo ngokusisiseko kumisela ukusebenza kwesicelo, izinga lokunyanga ukukhanya, ukusebenza kwefilimu kunye nezinye iimpawu ezikhethekileyo zokugquma ngaphambi kokunyanga.

Iingubo ze-UV ubukhulu becala ziinkqubo zokunyanga ukukhanya kweradical, ngoko ke ii-oligomers ezisetyenzisiweyo ziintlaka ezahlukeneyo ze-acrylic.I-Cationic UV yokugquma iioligomers ziyi-epoxy resin kunye ne-vinyl ether compounds.

2. i-diluent esebenzayo

I-diluent esebenzayo lelinye icandelo elibalulekileyo lotyatyazo lwe-UV.Iyakwazi ukuhlambulula kwaye inciphise i-viscosity, kwaye inokulungelelanisa nokusebenza kwefilimu ephilisiwe.Iimonomers ezisebenzayo ze-Acrylate zine-reactivity ephezulu kunye nokuguquguquka okuphantsi, ngoko ke zisetyenziswa ngokubanzi kwiingubo ze-UV.I-Acrylic esters isetyenziswa njenge-diluent esebenzayo kwiingubo ze-UV.Kuqulunqo lwangempela, i-mono -, i-Bi -, kunye ne-acrylates enemisebenzi emininzi iya kusetyenziswa kunye ukwenza iipropathi zabo zihambelane kwaye zifezekise umphumo omuhle obanzi.

3. ifotoinitiator

I-Photoinitiator yinto ekhethekileyo yokuvuselela ii-UV.Lilungu elibalulekileyo leengubo ze-UV kwaye limisela izinga lokunyanga le-UV leengubo ze-UV.

Kwivarnish engenambala yeengubo ze-UV, i-1173, 184, 651 kunye ne-bp / i-amine ephezulu zihlala zisetyenziswa njenge-photoinitiators.I-184 inomsebenzi ophezulu, ivumba eliphantsi kunye nokuchasana nokutyheli, yeyona nto ikhethiweyo yefotonitiator yokugquma kwe-UV enganyangekiyo.Ukuze kuphuculwe izinga lokunyanga ukukhanya, lihlala lisetyenziswa ngokudibanisa ne-TPO.

Kwiingubo ze-UV ezingenayo i-ferrous, i-photoinitiators kufuneka ibe yi-itx, i-907, i-369, i-TPO, i-819, njl. Ngamanye amaxesha, ukwenzela ukunciphisa i-oxygen polymerization inhibition kunye nokuphucula izinga lokunyanga kwe-UV, inani elincinci le-amine esebenzayo lihlala lidityaniswe kwi-UV. iingubo.

4. izongezo

Izongezo zizinto ezincedisayo kwiingubo ze-UV.Indima yezongezo kukuphucula ukusebenza kokucubungula, ukugcinwa kokugcinwa kunye nokusebenza kwesicelo sokugquma, ukuphucula ukusebenza kwefilimu kunye nokunika ifilimu ngemisebenzi ekhethekileyo.Izongezo ezisetyenziswa ngokuqhelekileyo kwiingubo ze-UV ziquka i-defoamer, i-ejenti yokulinganisa, i-disperant yokumanzisa, umgqugquzeli wokubambelela, i-agent yokulinganisa, i-polymerization inhibitor, njl., edlala indima eyahlukileyo kwiingubo ze-UV.