UV Number Of Txhais Lus Thiab Ntsiab Cai

UV number case yog tus number case uas tsis siv cov kuab tshuaj, muaj kev ceev kom qhuav, lub ntsej muag zoo, xim ci, xim tsis kam, tiv taus hnyav thiab hnav tsis kam. UV number case tau dhau los ua cov thev naus laus zis ntau thev naus laus zis, thiab nws cov pa paug paug yuav luag xoom. Raws li kev txheeb cais, txhua xyoo tawm ntawm UV inks yog txog 16, 000 tons hauv Nyij Pooj, txog 18, 000 tons hauv Tebchaws Europe, thiab txog 19, 000 tons hauv North America. Nws yuav tsum tau sau tseg tias cov dej raws li UV number case hauv UV number case yog cov kev tshawb fawb tshiab qhia hauv thaj tsam ntawm UV number case. Vim tias qhov viscosity ntawm prepolymers nyob rau hauv dog dig UV inks feem ntau loj heev, nws yuav tsum tau diluted nrog reactive diluents, thiab diluent acrylate tebchaw siv tau sib txawv qib ntawm daim tawv nqaij voos thiab lom. Yog li ntawd, qis viscosity prepolymers thiab qis Nyob rau tib lub sijhawm ua cov tshuaj lom rau lub cev, lwm txoj kev loj hlob yog kawm txog dej-raws UV inks, uas yog, dej thiab ethanol siv los ua cov tsis haum. Dej-based UV inks tau zoo tsim thiab siv hauv qee cov tuam txhab luam ntawv.

Lub hauv paus ntsiab lus: UV number case muaj cov yam ntxwv ntawm kev xaiv nqus ntawm UV teeb. Kev ziab kom qhuav yog cuam tshuam los ntawm tag nrho cov zog ntawm UV lub teeb thiab faib hluav taws xob ntawm lub teeb hluav taws xob sib txawv. Hauv qhov kev tsis nkag siab ntawm UV lub teeb, UV number case photopolymerization initiator absorbs photons ntawm qee yam nthwv dej thiab ua rau muaj siab rau lub xeev zoo siab, tsim cov dawb radicals lossis ions. Tom qab ntawd, dhau los ntawm lub zog hloov intermolecular, lub polymerized prepolymer thiab lub teeb-rhiab monomer thiab polymer tau coj mus rau hauv lub xeev zoo siab, uas ua rau lub txim hloov chaw. Cov kev hais tawm nyuaj ua ntu zus txuas nrog thiab polymerized, solidifying rau hauv zaj duab xis.