Ubwino wa mapaipi a PVC
1. Kutha Kunyamula: Zipangizo za UPVC zili ndi mphamvu yokoka yomwe ndi gawo limodzi mwa magawo khumi okha a chitsulo chopangidwa ndi chitsulo, zomwe zimapangitsa kuti kutumiza ndi kuyika kukhale kotsika mtengo.
2. UPVC ili ndi kukana kwambiri kwa asidi ndi alkali, kupatulapo ma asidi amphamvu ndi alkali omwe ali pafupi ndi malo okhutitsidwa kapena othandizira amphamvu owonjezera mphamvu pamlingo wapamwamba kwambiri.
3. Chosayendetsa: Popeza zinthu za UPVC siziyendetsa ndipo sizimawononga zikakumana ndi magetsi kapena magetsi, palibe chifukwa chowonjezera chokonzera magetsi.
4. Palibe nkhawa yokhudza chitetezo cha moto chifukwa sichingayatse kapena kuyambitsa kuyaka.
5. Kuyika ndi kosavuta komanso kotsika mtengo chifukwa cha kugwiritsa ntchito guluu wa PVC, womwe watsimikizika kuti ndi wodalirika komanso wotetezeka, wosavuta kugwiritsa ntchito, komanso wotsika mtengo. Kudula ndi kulumikiza nakonso ndikosavuta.
6. Kulimba bwino kwa nyengo komanso kukana dzimbiri la mabakiteriya ndi bowa kumapangitsa chilichonse kukhala cholimba.
7. Kukana pang'ono komanso kuthamanga kwambiri kwa madzi: khoma losalala lamkati limachepetsa kutaya madzi, limaletsa zinyalala kuti zisamamatire pakhoma losalala la chitoliro, ndipo zimapangitsa kukonza kukhala kosavuta komanso kotsika mtengo.

Pulasitiki si PVC.
PVC ndi pulasitiki yogwiritsidwa ntchito m'njira zosiyanasiyana yomwe ingagwiritsidwe ntchito pazinthu zosiyanasiyana, kuphatikizapo mipando wamba ndi malo omangira nyumba.
Kale, PVC inali pulasitiki yomwe imagwiritsidwa ntchito kwambiri padziko lonse lapansi ndipo inali ndi ntchito zosiyanasiyana. Imagwiritsidwa ntchito kwambiri pa zomangamanga, zinthu zamafakitale, zofunikira za tsiku ndi tsiku, chikopa cha pansi, matailosi a pansi, chikopa chopangidwa, mapaipi, mawaya, ndi zingwe, mafilimu opaka, mabotolo, ulusi, zinthu zotulutsa thovu, ndi zinthu zotsekera, pakati pa zinthu zina.

Bungwe la World Health Organization’s International Agency for Research on Cancer linalemba mndandanda wa zinthu zomwe zimayambitsa khansa pa Okutobala 27, 2017, ndipo polyvinyl chloride inali imodzi mwa mitundu itatu ya zinthu zomwe zimayambitsa khansa pamndandandawu.
Polima yopanda mawonekedwe okhala ndi mawonekedwe a kristalo, polyvinyl chloride ndi polima yomwe imalowa m'malo mwa atomu imodzi ya chlorine m'malo mwa atomu imodzi ya hydrogen mu polyethylene. Chikalatachi chakonzedwa motere: n [-CH2-CHCl] Ambiri mwa ma monomers a VCM amalumikizidwa mu kasinthidwe ka mutu ndi mchira kuti apange polima yolunjika yotchedwa PVC. Ma atomu onse a kaboni amalumikizidwa pamodzi ndi ma bond ndipo amakonzedwa mu mawonekedwe a zigzag. Atomu iliyonse ya kaboni ili ndi sp3 hybrid.

Unyolo wa mamolekyu wa PVC uli ndi kapangidwe kafupi ka syndiotactic. Kuchuluka kwa syndiotactic kumawonjezeka pamene kutentha kwa polymerization kumatsika. Pali zinthu zosakhazikika kuphatikizapo kapangidwe ka mutu ndi mutu, unyolo wofalikira, ma bond awiri, allyl chloride, ndi tertiary chlorine mu kapangidwe ka macromolecular ka polyvinyl chloride, zomwe zimapangitsa kuti pakhale zovuta monga kukana kutentha pang'ono komanso kukana ukalamba. Zolakwika zotere zimatha kukonzedwa zitawoneka ngati zolumikizidwa.

Njira yolumikizira PVC:
1. Guluu wapadera umagwiritsidwa ntchito polumikiza zolumikizira mapaipi a PVC; guluu uyenera kugwedezeka musanagwiritse ntchito.
2. Chigawo cha soketi ndi chitoliro cha PVC ziyenera kutsukidwa. Malo ochepa pakati pa soketi, pamwamba pa malo olumikizirana payenera kukhala posalala. Kenako, pukutani guluu mofanana mu soketi iliyonse ndikupukuta guluu kawiri kunja kwa soketi iliyonse. Masekondi 40 mutauma, ikani. Ikani guluu pambali ndipo samalani ngati nthawi youma iyenera kuwonjezeredwa kapena kuchepetsedwa malinga ndi nyengo.
3. Paipi iyenera kudzazidwanso maola 24 mutalumikiza youma, payipi iyenera kuyikidwa mu ngalande, ndipo kunyowa n'koletsedwa kwambiri. Mukadzazanso, sungani malo olumikizira, dzazani malo ozungulira payipi ndi mchenga, ndipo dzazaninso kwambiri.
4. Kuti mulumikize chitoliro cha PVC ku chitoliro chachitsulo, yeretsani malo olumikizira chitoliro chachitsulo cholumikizidwa, chitenthetseni kuti chitoliro cha PVC chifewetse (popanda kuchiwotcha), kenako ikani chitoliro cha PVC mu chitoliro chachitsulo kuti chizizire. Zotsatira zake zidzakhala bwino ngati zingwe zopangidwa ndi chitoliro chachitsulo ziphatikizidwa.
Mapaipi a PVCakhoza kulumikizidwa mu imodzi mwa njira zinayi:
1. Ngati payipi yawonongeka kwambiri, zonsemapaipiiyenera kusinthidwa. Cholumikizira cha madoko awiri chingagwiritsidwe ntchito pochita izi.
2. Njira yosungunulira madzi ingagwiritsidwe ntchito kuletsa kutuluka kwa guluu wosungunulira madzi. Pa nthawiyi, madzi a paipi yayikulu amatuluka, zomwe zimapangitsa kuti paipi ikhale ndi mphamvu yoipa musanalowetse guluu m'dzenje pamalo otayikira madzi. Guluuyo adzakokedwa m'mabowo chifukwa cha kutsika kwa mphamvu yoipa ya paipi, zomwe zimaletsa kutuluka kwa madzi.
3. Cholinga chachikulu cha njira yokonza chigoba cha manja ndi kutulutsa kwa chigoba kudzera m'ming'alu ndi mabowo ang'onoang'ono. Chitoliro chomwecho tsopano chasankhidwa kuti chidulidwe kwa nthawi yayitali ndipo chimakhala ndi kutalika kuyambira 15 mpaka 500 px. Pamwamba pa chigoba ndi pamwamba pa chitoliro chokonzedwacho zimalumikizidwa pamalo olumikizirana mogwirizana ndi njira yomwe yagwiritsidwa ntchito. Mukayika guluu, pamwamba pake pamakhala powuma, kenako chimamangiriridwa mwamphamvu komwe kwachokera kutayikira.
4. Kuti mupange yankho la resin pogwiritsa ntchito epoxy resin curating agent, gwiritsani ntchito njira ya ulusi wagalasi. Imalukidwa mofanana pamwamba pa payipi kapena pamalo olumikizirana madzi mutanyowa mu yankho la resin ndi nsalu yagalasi ya ulusi, ndipo ikatha, imakhala FRP.