Ntawm ntau cov ntaub ntawv, PVC (polyvinyl chloride) muaj ntau cov chaw muaj feem xyuam nrog ib puag ncig hauv ntau thaj teb vim nws cov khoom tshwj xeeb.
Hauv kev kho kom zoo nkauj hauv tsev, daim ntawv thov ntawm PVC muaj ntau heev. Nws corrosion tsis kam, tshav kub tiv thaiv thiab ib puag ncig kev tiv thaiv ua nws ua lub luag haujlwm tseem ceeb hauv kev tso dej, cua sov thiab lwm yam hluav taws xob. Nyob rau tib lub sijhawm, PVC cov khoom kuj tau siv rau kev tiv thaiv kab, uas tuaj yeem tiv thaiv cov xov hlau thiab cov xaim hluav taws xob los ntawm kev puas tsuaj sab nraud thiab dej noo. Tsis tas li ntawd, PVC qhov rooj thiab lub qhov rais thav duab yog lub teeb thiab ruaj, thiab tseem muaj kev xaiv nrov rau kev kho kom zoo nkauj hauv tsev.
Nyob rau hauv kev lag luam teb, pvc kuj ua tau zoo. Hauv kev lag luam tshuaj, nws corrosion tsis kam ua rau pipelines uas siv rau cov kav dej uas thauj cov kua. Hauv kev lag luam ntau lawm, pvc kuj yog ib cov khoom siv rau cable tiv thaiv kev tiv thaiv kom tsis txhob raug puas tsuaj los ntawm lwm yam kev puas tsuaj los ntawm sab nraud yam. Hauv kev tsim kho kev tsim kho, PVC tuaj yeem siv los ua cov qauv ua kom lub tsev, scaffolding tsev, thiab lwm yam.
Nyob rau hauv lwm daim teb, pvc kuj tseem siv nyob rau hauv ib puag ncig. Hauv kev lim dej ua liaj ua teb, nws tau siv dav siv vim nws cov yam ntxwv ruaj khov thiab yooj yim; Hauv cov dej num hauv cov tswv yim txuag, nws tuaj yeem siv rau kev ua kom pom cov tshuab, dej nyab thiab tshuaj tiv thaiv dej nyab xeeb rau cov khoom lag luam ua khoom noj. Nws cov kev siv zog ruaj thiab tawm tsam kev laus ua rau nws cov khoom siv zoo rau kev siv.
Los ntawm cov qauv tshuaj ntsuam xyuas, PVC yog muaj li ntawm peb yam: Chlorine, carbon thiab hydrogen. Nws muaj lub zog zoo thiab ua rau nws siv hauv cov ntaub ntawv hauv tsev, muaj cov khoom siv txhua hnub, thiab lwm yam. Nws muaj cov yas muaj zog thiab tuaj yeem ua tiav rau hauv cov khoom lag luam sib txawv thiab ntau thiab tsawg hauv ntau txoj kev.
Txawm li cas los xij, pvc kuj muaj cov tsis txaus ntseeg. Nws muaj cov kev tsis zoo siab tiv thaiv, kuj cuam tshuam los ntawm cov muaj kua qaub lossis cov chaw alkali, thiab tso cov tshuaj tiv thaiv kev phom sij thaum lub sijhawm tsim khoom thiab kev ua haujlwm. Txawm li cas los xij, nrog kev txhim kho thev naus laus zis, nws cov teeb meem ib puag ncig muaj kev txhim kho maj. Nyob rau hauv dav dav, pvc yog haum rau ntau qhov chaw ib puag ncig thiab muaj cov ntawv thov tseem ceeb hauv ntau thaj teb.