Daim ntawv thov ntawm PVP nyob rau hauv lub tsev muag tshuaj - Siv los ua zaj duab xis txheej khoom

Feem ntau, PVP ntawm cov lus qhia tshwj xeeb tuaj yeem siv los ua cov khoom siv tshuaj yeeb yaj kiab los yog ua ke nrog lwm cov ntaub ntawv zaj duab xis vim nws qhov zoo tshaj plaws hloov tau. Kev xyaum tau ua pov thawj tias PVP tuaj yeem siv rau hauv cov txheej txheem txheej txheem ntawm cov dej thiab cov organic hnyav. Nws qhov zoo ntawm txheej txheej yog: nws tuaj yeem txhim kho qhov adhesion ntawm zaj duab xis rau saum npoo, txhim kho qhov sib txawv ntawm cov pas dej lossis cov dyes, thiab tuaj yeem siv los ua cov yeeb yaj kiab plasticizer. Nws tuaj yeem hloov lub sijhawm tawg ntawm zaj duab xis raws li cov khoom siv hydrophobic. Cov concentration li niaj zaus thaum txheej txheej yog 0.5% --- 5%. Tam sim no, PVP / VA series khoom tshwj xeeb yog siv los ua cov ntaub ntawv ua yeeb yaj kiab. Lawv yog copolymer ntawm VP (vinyl pyrrolidone) thiab VA (vinyl acetate).