Taw qhia ntawm PVC Yas Cov Khoom thiab Cov Xim Xim Xim

Raws li cov khoom zoo tshaj plaws ntawm PVC yas, tam sim no siv rau ntau qhov chaw ntawm lub neej. Thiab cov ntawv PVC no, feem ntau yog cov khoom ua tiav. Nws ntxiv qee cov xim xim hauv cov txheej txheem tsim khoom kom cov khoom zoo nkauj dua. Tab sis qee tus neeg tsis paub ntau txog qhov no, hnub no tsab xov xwm no yuav qhia kom meej.

PVC resin yog cov thermoplastic nrog cov qauv tsis tau txhais. Lub softening point ntawm cov resin yog ze rau lub decomposition kub. Nws tau pib decompose ntawm 140 ℃, thiab tseem ceev tshaj ntawm 170 ℃. Vim nws cov ntsiab lus ntawm chloride atoms, polyethylene molecule thiab nws cov copolymer feem ntau yog nplaim taws-resistant nrog nws tus kheej-quenching thiab poob-dawb zog. Nws yog ib qho tsis ruaj khov dua polymer uas tseem degraded los ntawm lub teeb thiab kub. Nws kuj muaj tshuaj lom neeg ruaj khov zoo zog, thiab nws muaj txiaj ntsig zoo li cov khoom siv tiv thaiv corrosion. PVC yog ruaj khov rau feem ntau inorganic acids thiab hauv paus thiab muab faib rau hydrogen chloride.Nws tuaj yeem yaj hauv ketones thiab cov kuab tshuaj tsw qab.

Cov xim uas siv rau PVC plastics yog cov organic thiab inorganic pigments. PVC plastics muaj cov kev xav tau siab rau cov xim, xws li kub tsis kam thaum ua haujlwm, tsis muaj kev tsiv teb tsaws hauv kev ua, lub teeb ua haujlwm, thiab lwm yam. Feem ntau siv cov xim yog: 1, liab feem ntau yog soluble azo pigment, cadmium liab inorganic pigment, hlau oxide liab pigment, phthalocyanine liab, thiab lwm yam.; 2, daj mas chromium daj, cadmium daj thiab fluorescent daj; 3, orchid xim mas phthalocyanine xiav; 4, ntsuab mas phthalocyanine ntsuab; 5, dawb mas siv titanium dioxide; 6, ntshav feem ntau yog xim liab; 7, dub feem ntau yog carbon dub. Tsis tas li ntawd, fluorescent whitening tus neeg sawv cev yog siv rau kev ntxuav hniav dawb; kub thiab nyiaj hmoov yog siv rau xim luam ntawv; thiab hlaws hmoov astigmatism cov yas zoo li hlaws.

Qhov ntawd yog cov lus qhia ntxaws txog "PVC yas khoom thiab cov xim sib xws". Yog xav paub ntxiv, thov ua tib zoo mloog rau peb.