Cov khoom

Qhov zoo: Rigid PVC yog ib qho ntawm cov khoom siv dav siv ntau tshaj plaws.Cov khoom siv PVC yog cov khoom siv tsis muaj crystalline.

Hauv kev siv tiag tiag, cov ntaub ntawv PVC feem ntau ntxiv nrog cov stabilizers, lubricants, auxiliary processing agents, pigments, impact agents and other additives.

Cov khoom siv PVC tsis muaj nplaim taws, siab zog, huab cua tsis kam thiab zoo heev geometric stability.

PVC muaj zog tiv thaiv oxidants, txo cov neeg ua haujlwm thiab muaj zog acids.Txawm li cas los xij, nws tuaj yeem corroded los ntawm cov concentrated oxidizing acids, xws li concentrated sulfuric acid thiab concentrated nitric acid, thiab tsis haum rau kev sib cuag nrog cov ntxhiab hydrocarbons thiab chlorinated hydrocarbons.

Qhov tsis zoo: Cov yam ntxwv ntws ntawm PVC yog qhov tsis zoo, thiab nws cov txheej txheem yog nqaim heev.Tshwj xeeb, cov ntaub ntawv PVC nrog qhov hnyav molecular hnyav dua yog qhov nyuaj rau kev ua haujlwm (cov ntaub ntawv no feem ntau yuav tsum tau ntxiv cov roj nplua nyeem los txhim kho cov yam ntxwv ntws), yog li cov ntaub ntawv PVC uas muaj qhov hnyav molecular feem ntau yog siv.

Lub shrinkage ntawm PVC yog tsawg heev, feem ntau 0, 2 - 0, 6%.

PVC yog ib qho yooj yim los tso cov pa roj hauv cov txheej txheem molding.