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Mphira ndi zinthu zake pokonza, kusungirako ndi kugwiritsa ntchito, chifukwa cha kuphatikizika kwa zinthu zamkati ndi zakunja zomwe zimayambitsidwa ndi kuwonongeka kwapang'onopang'ono kwa mphira wakuthupi ndi mankhwala ndi zida zamakina, ndipo pamapeto pake kutaya mtengo wogwiritsa ntchito, kusinthaku kumatchedwa. kukalamba kwa rabara. Pamwamba, imakhala yosweka, yomata, yolimba, yofewa, ya ufa, yosinthika, ndi mildew.

PVC yolimba ndi imodzi mwazinthu zomwe zimagwiritsidwa ntchito kwambiri ndi pulasitiki. PVC ndi chinthu cha amorphous.
Zipangizo za PVC nthawi zambiri zimawonjezeredwa pakugwiritsa ntchito kwenikweni kwa zolimbitsa thupi, mafuta opangira mafuta, othandizira othandizira, mitundu, othandizira ndi zina zowonjezera.
PVC zinthu ali sanali kuyaka, mphamvu mkulu, kukana nyengo ndi kukhazikika kwambiri ma geometric.
PVC ili ndi kukana kwambiri kwa okosijeni, kuchepetsa wothandizila ndi ma asidi amphamvu. Komabe, imatha kuipitsidwa ndi ma oxidizing acids okhazikika monga sulfuric acid, acidity ya nitric ndipo siyenera kulumikizana ndi ma hydrocarbon onunkhira ndi ma hydrocarbons a chlorinated.

Monga imodzi mwazosintha zofunika kwambiri pamsika wapulasitiki wapadziko lonse lapansi,CPEchimagwiritsidwa ntchito pokonza PVC extrusion ndi jekeseni akamaumba mankhwala, kuphatikizapo okhwima mbiri PVC, mipope, zovekera chitoliro, mapepala ndi mapanelo. Ikhoza kupititsa patsogolo mphamvu ya zinthu zolimba za PVC ndikupatsa malondawo ntchito yabwino kwambiri yotsika kutentha, kukana kwanyengo. Makasitomala ena amagwiritsanso ntchito popanga zinthu zapulasitiki za PE kapena PP ndi kuchuluka koyenera.

Poyerekeza ndi zosintha zina monga AIM (Acrylic Impact Modifier), MBS ndi ABS, CPE ndi yopikisana kwambiri pamachitidwe ake athunthu ndi mtengo. CPE imakondedwa ndi makasitomala ochulukirachulukira ndipo ikukula mpaka gawo lalikulu pamsika wosintha zinthu.