Kev tshuaj xyuas ntawm Cov Ntsiab Cai thiab Daim Ntawv Thov Cov yam ntxwv ntawm UV Txheej

Nyob rau hauv cov ntsiab lus ntawm ntsuab thiab zoo kev loj hlob ntawm txheej txheej kev lag luam, UV txheej, vim lawv qhov zoo ntawm kev kho sai thiab kev ua tau zoo ntawm ib puag ncig, tau tsim cov kab ke ua tiav. Lawv tuaj yeem muab faib ua ke raws li kev kho cov txheej txheem, zaj duab xis- tsim cov tshuaj morphology, thiab cov yam ntxwv ua haujlwm kom tau raws li cov kev xav tau txheej txheej ntawm ntau qhov chaw.

Raws li cov txheej txheem kho, UV txheej feem ntau muab faib ua dawb radical curing hom thiab cationic curing hom. Dawb radical curing hom yog siv dav tshaj plaws, vam khom ntawm photoinitiators los tsim cov dawb radicals, tsav cov saw polymerization ntawm resins uas muaj unsaturated ob daim ntawv cog lus thiab monomers. Nws nta ceev ceev curing ceev thiab cov cuab yeej paub tab, ua rau nws tsim nyog rau txheej txheej thiab ntau lawm. Cationic curing hom siv cationic photoinitiators ua lub hauv paus, tsim tus ntoo khaub lig- txuas network los ntawm lub nplhaib- qhib polymerization. Kev kho yog tsawg inhibited los ntawm oxygen, ua rau nws ntau tus phooj ywg rau cov yeeb yaj kiab tuab thiab cua sov-sensitive substrates, thiab nthuav tawm cov nyhuv curing ntau dua nyob rau hauv qhov tsaus ntuj - xim tshuab.

Raws li zaj duab xis- tsim cov tshuaj morphology, lawv tuaj yeem muab faib ua cov kuab tshuaj-raws li UV txheej thiab dej-raws li UV txheej. Cov tshuaj hnyav ib txwm siv-raws li UV pleev xim siv acrylate oligomers yaj nyob rau hauv ib qho me me ntawm cov active monomers, uas ua rau yooj yim tswj tau viscosity thiab ruaj khov zaj duab xis kev ua tau zoo. Waterborne UV xim, ntawm qhov tod tes, koom nrog hydrophilic pawg rau hauv cov resin los yog disperse lawv los ntawm ib tug emulsion system, combining lub low VOC zoo ntawm waterborne systems nrog npaum UV curing, ua rau lawv haum rau ib puag ncig xav tau daim ntaub ntawv xws li cov rooj tog hauv tsev thiab cov khoom siv rau menyuam yaus.

Raws li cov yam ntxwv ua haujlwm, UV xim tuaj yeem muab faib ua ntau yam - lub hom phiaj, puas tsuaj - tiv taus, ntiv tes - tiv taus, stain - tiv taus, thiab hom kho qhov muag tshwj xeeb. Piv txwv li, abrasion- hom resistant txhim kho qhov tawv tawv thiab khawb tsis kam, thiab feem ntau yog siv rau hauv pem teb thiab cov khoom siv hluav taws xob; ntiv tes- hom resistant txo cov ntiv tes seem los ntawm kev hloov hluav taws xob saum npoo av thiab feem ntau pom muaj nyob hauv siab -kawg vaj huam sib luag thiab cov khoom siv kov; hom kho qhov muag tsom rau lub teeb xa hluav taws xob thiab kev tswj xyuas refraction, ua haujlwm rau cov khoom siv kho qhov muag thiab cov iav zoo nkauj.

Cov ntau yam ntawm pawg no tso cai rau UV pleev xim rau hloov pauv mus rau cov txheej txheem kev xav tau ntawm ntau yam xws li rooj tog tsim khoom, cov khoom siv kho kom zoo nkauj, hluav taws xob, thiab tsheb sab hauv, thiab txuas ntxiv nthuav dav nws daim ntawv thov ciam teb raws li kev tswj hwm ib puag ncig, dhau los ua tus ncej tseem ceeb ntawm cov txheej txheem niaj hnub.