PVC cov khoom yog ib hom ntawm cov khoom yas zoo nkauj, uas yog qhov luv ntawm PVC khoom. PVC cob yog thermoplastic polymer polymerized los vinyl chloride monomer (VCM). PVC yog cov roj ntsha amorphous polymer nrog crystallinity ntawm 5% - 10% crystallinity (melting point 175 degrees), uas yog tsim los ntawm PVC resin ua cov khoom siv tseem ceeb thiab ntxiv tsim cov tshuaj tiv thaiv thiab tus neeg hloov kho uas tsim nyog.
Lub phaus molecular, crystallinity, softening taw tes thiab lwm lub zog ntawm lub cev ntawm PVC hloov nrog lub polymerization mob (kub). Raws li cov PVC cob, PVC yas yas yog tsim los ntawm kev sib xyaw nrog stabilizer, yas tov khoom, muab tub lim, colorant, hloov kho thiab lwm yam ntxiv los ntawm kev hloov kho yas thiab tshuaj molding. Cov khoom siv PVC muaj cov yam ntxwv ntawm lub teeb yuag, lub rwb thaiv tsev, kev tiv thaiv tshav kub, noo noo-pov thawj, nplaim hluav taws-tshem tawm thiab kev tsim kho yooj yim. Cov lus qhia tshwj xeeb, xim, qauv, kev nplua nuj nyob hauv kev kho kom zoo nkauj, yog dav siv hauv kev tsim khoom thiab lub neej. Piv txwv li, cov kav dej PVC, PVC yas qhov rooj thiab qhov rai, ntxiv rau cov khoom ua si yas uas muaj PVC, xov hlau thiab cable. Vim nws qhov kev puas tsuaj rau tib neeg lub cev, ntau lub teb chaws nyob hauv Europe, Nyij Pooj thiab Kaus Lim Qab Teb tau txwv cov khoom uas ua los ntawm PVC. Cov txiaj ntsig zoo ntawm cov khoom siv dav dav PVC yas yas yog nplaim hluav taws-hnav, hnav-resistant, tshuaj lom neeg-resistant, tsis tshua muaj roj thiab dej vapor paug.