Kodi zosakaniza za zokutira zochizika ndi UV ndi chiyani?

Kupaka kwa UV Curring (UV) ndi mtundu watsopano wa zokutira zachilengedwe.Kuwuma kwake kumathamanga kwambiri.Ikhoza kuchiritsidwa ndi kuwala kwa UV mumasekondi pang'ono, ndipo kupanga bwino kumakhala kwakukulu.

Zovala zochiritsira za UV zimapangidwa makamaka ndi oligomers, diluents yogwira, photoinitiators ndi zowonjezera.

1. Oligomer

Kupanga filimu ndiye chigawo chachikulu cha zokutira, chomwe ndi gawo lamadzimadzi la zokutira.Mawonekedwe a filimu, ntchito yomanga ndi zina zapadera za zokutira makamaka zimadalira filimu yopangira mafilimu.Mafilimu opangidwa ndi filimu ya UV ndi oligomer, ndipo machitidwe ake amatsimikizira momwe ntchito yomangamanga imagwirira ntchito komanso kuwala kwa machiritso a zokutira musanachiritse, filimuyo pambuyo pochiritsa ndi zina zapadera.

Zotchingira za UV nthawi zambiri zimakhala njira zochiritsira zaulere, kotero ma oligomer omwe amagwiritsidwa ntchito ndi mitundu yonse ya utomoni wa acrylic.Cationic UV zokutira oligomers ndi epoxy resin ndi vinyl ether mankhwala.

2.Active diluent

Kusungunula kochititsa chidwi ndi chinthu china chofunika kwambiri pa zokutira za UV.Ikhoza kuchepetsa ndi kuchepetsa mamasukidwe akayendedwe, komanso ili ndi katundu wokonza filimu yochiritsa.Acrylate functional monomers ali ndi reactivity kwambiri komanso kusinthasintha kochepa, kotero amagwiritsidwa ntchito kwambiri pakupaka kwa UV.Acrylic esters amagwiritsidwa ntchito ngati zosungunulira zopangira zokutira za UV.M'njira yeniyeni, ma acrylates a mono -, omwe amagwira ntchito ziwiri komanso osiyanasiyana adzagwiritsidwa ntchito palimodzi kuti katundu wawo akhale wogwirizana ndikukwaniritsa cholinga chokhala ndi zotsatira zabwino.

3. Photoinitiator

Photoinitiator ndi chothandizira chapadera mu zokutira za UV.Ndi gawo lofunikira la zokutira za UV ndipo limatsimikizira kuchuluka kwa machiritso a UV a zokutira za UV.

Kwa zokutira za UV zopanda mtundu, 1173, 184, 651 ndi bp/ tertiary amine zimagwiritsidwa ntchito ngati ma photoinitiators.184 yokhala ndi zochitika zambiri, fungo lochepa komanso kukana kwachikasu, ndiye chojambula chomwe chimakondedwa pa zokutira za UV zosagwira chikasu.Pofuna kukonza kuwala kwa kuwala, nthawi zambiri amagwiritsidwa ntchito limodzi ndi TPO.

Kwa zokutira zamtundu wa UV, ma photoinitiators ayenera kukhala itx, 907, 369, TPO, 819, ndi zina zotero. Nthawi zina, pofuna kuchepetsa kuletsa kwa mpweya wa polymerization ndikuwongolera mlingo wa machiritso a UV, amine wokhazikika nthawi zambiri amawonjezeredwa mu zokutira za UV.

4. Zowonjezera

Zowonjezera ndi zigawo zothandizira za zokutira za UV.Udindo wa zowonjezera ndikuwongolera magwiridwe antchito, kasungidwe kasungidwe ndi kamangidwe ka zokutira, kukonza filimuyo ndikupangitsa kuti filimuyo ikhale ndi ntchito zina zapadera.Zowonjezera zomwe zimagwiritsidwa ntchito nthawi zambiri zokutira za UV ndi monga defoamer, leveling agent, wetting dispersant, adhesion promotioner, matting agent, polymerization inhibitor, ndi zina zotero, zomwe zimagwira ntchito zosiyanasiyana mu zokutira za UV.