Isikhumba se-PVC siyinto yokwenziwa, eyaziwa nangokuthi isikhumba sokwenziwa noma isikhumba sokulingisa. Yenziwe nge-polyvinyl chloride (PVC) resin nezinye izithasiselo ngochungechunge lwamasu okucubungula, futhi inokubukeka okufana nesikhumba nomuzwa. Kodwa-ke, uma kuqhathaniswa nesikhumba sangempela, isikhumba se-PVC sihambisana nemvelo, kulula ukusihlanza, asikwazi ukugqokwa, futhi simelana nesimo sezulu. Ngakho-ke, isetshenziswe kabanzi kufenisha, izimoto, izingubo, izikhwama kanye neminye imikhakha.
Okokuqala, impahla eluhlaza yesikhumba se-PVC ngokuyinhloko i-polyvinyl chloride resin, okuyizinto ezivamile zepulasitiki ezinepulasitiki enhle kanye nokumelana nesimo sezulu. Lapho kwenziwa isikhumba se-PVC, ezinye izinto ezisizayo ezifana ne-plasticizers, stabilizers, fillers, kanye ne-pigment kanye nama-ejenti okwelapha angaphezulu ayengezwa ukwenza izitayela ezihlukahlukene kanye nokusebenza kwezinto zesikhumba ze-PVC ngokuxuba, i-calendering, i-coating nezinye izinqubo.
Okwesibili, isikhumba se-PVC sinezinzuzo eziningi. Okokuqala, inqubo yayo yokukhiqiza ilula futhi izindleko ziphansi, ngakho-ke intengo iphansi, engahlangabezana nezidingo zokusetshenziswa kobuningi. Okwesibili, isikhumba se-PVC sinokumelana kahle nokugqokwa kanye nokumelana nesimo sezulu, akulula ukuguga noma ukonakala, futhi sinempilo ende yesevisi. Okwesithathu, isikhumba se-PVC kulula ukusihlanza, kulula ukusinakekela, akulula ukusigcoba, futhi kulula ukusisebenzisa. Ngaphezu kwalokho, isikhumba se-PVC sinezici ezithile ezingangeni manzi, ezingamelana nokuguguleka kwamanzi ngezinga elithile, ngakho-ke iye yasetshenziswa kabanzi kwezinye izikhathi ezidinga izakhiwo ezingangeni manzi.
Kodwa-ke, isikhumba se-PVC sibuye sibe nokubi. Okokuqala, uma kuqhathaniswa nesikhumba sangempela, isikhumba se-PVC sinokungena kahle komoya futhi sivame ukungakhululeki ngesikhathi sokusetshenziswa isikhathi eside. Okwesibili, ukuvikelwa kwemvelo kwesikhumba se-PVC nakho kuyimpikiswano, ngoba izinto eziyingozi zingase zikhishwe ngesikhathi sokukhiqiza nokusetshenziswa, okuzothinta imvelo nempilo yabantu.
Okwesithathu, isikhumba se-PVC sinepulasitiki elimpofu futhi akulula ukwenza izakhiwo eziyinkimbinkimbi ezinezinhlangothi ezintathu, ngakho-ke sinqunyelwe kwezinye izikhathi zokufaka izicelo ezikhethekile.
Ngokuvamile, isikhumba se-PVC, njengento yokwenziwa, sisetshenziswe kabanzi kufenisha, izimoto, izingubo zokugqoka, izikhwama kanye nezinye izinkambu. Izinzuzo zayo ezifana nokumelana nokugqoka, ukumelana nesimo sezulu kanye nokuhlanza kalula kwenza kube indawo yesikhumba sangempela. Kodwa-ke, ukushiyeka kwayo njengokungangeni kahle komoya kanye nokuvikelwa kwemvelo okungabazekayo nakho kudinga ukuthi sinake lapho siyisebenzisa, futhi sikhethe izinto ezifanele ukuhlangabezana nezidingo ezahlukene.