Ua ntej, qhia. Vim tias cov khoom siv khau ntxiv ntau cov plasticizer (feem ntau hauv 60 ~ 100 PHR), thiab cov kua plasticizer (tshwj xeeb tshaj yog cov tshuaj chlorine paraffin, kua paraffin, roj dawb, thiab lwm yam) thiab PVC compatibility tsis zoo heev, thaum kub nce, nws. yog ib qho yooj yim rau precipitate rau saum npoo ntawm cov khoom khau, uas ua rau daj ib leeg.
Kev daws: Siv cov yas yas nrog qhov hnyav molecular thiab zoo sib xws nrog PVC, xws li polyester plasticizer; siv cov mesh calcium hmoov kom ua rau kom muaj kev sib cais thiab cov roj nqus cov nqi; txo tus nqi ntawm stearic acid xab npum thiab stearic acid lubricant, hloov polyol ester lubricant; siv ntu 2 thiab hom 3 resin hmoov txhawm rau txhawm rau nce cov nqi nqus roj; ntxiv ACR resin los txhim kho cov plasticizing uniformity, ua rau saum npoo ntom thiab txo exudation.
Thib ob, ua paug paug. Lub caij ntuj sov kub yog siab, kev siv lead ua ntsev stabilizer, tshwj xeeb tshaj yog hmoov peb ntsev ob ntsev, qhov kub thiab txias, ntsib cov ntsiab lus sulfur (xws li lub thawv ntim) yuav tshwm sim ua paug paug los yog hu ua sulfur pollution, daj thiab discoloration.
Kev daws: hloov PVC tshwj xeeb lead ntsev stabilizer rau cov khoom khau lossis hloov calcium thiab zinc stabilizer rau ib leeg; txo qhov raug tus kab mob sulfur; txo qhov kub thiab txias, thiab lwm yam.
Thib peb, kev ruaj ntseg tsis txaus. PVC tsis muaj kev ruaj ntseg yuav tshwm sim los ntawm dawb mus rau daj mus rau liab mus rau xim av kom txog rau thaum kev sib tham ua tsaus nti. Stability yog muab faib ua photostability, thermal stability, thiab oxygen stability.
Kev daws: hloov mus rau qhov zoo stabilizer lossis nce tus nqi stabilizer; ntxiv ultraviolet lub teeb absorber; ntxiv antioxidant, thiab lwm yam.
