Iyini i-PVC?

I-PVCimfushane nge-polyvinyl chloride, futhi ukubonakala kwayo kuyimpushana emhlophe. I-PVC ingelinye lamapulasitiki amahlanu ajwayelekile emhlabeni. Isetshenziswa kabanzi emhlabeni wonke, ikakhulukazi emkhakheni wokwakha. Kunezinhlobo eziningi ze-PVC. Ngokomthombo wezinto zokusetshenziswa, ingahlukaniswa ibei-calcium carbideindlela kanyeindlela ye-ethylene. Izinto ezingavuthiwe zendlela ye-calcium carbide ikakhulukazi zivela kumalahle nosawoti. Izinto ezingasetshenzisiwe zenqubo ye-ethylene ikakhulukazi zivela kuwoyela ongahluziwe. Ngokwezinqubo ezahlukene zokukhiqiza, ingahlukaniswa ngendlela yokumiswa kanye nendlela ye-emulsion. I-PVC esetshenziswa emkhakheni wokwakha ngokuyisisekelo iyindlela yokumiswa, futhi i-PVC esetshenziswa emkhakheni wesikhumba ngokuyisisekelo iyindlela ye-emulsion. I-PVC yokumiswa isetshenziselwa ikakhulukazi ukukhiqiza: i-PVCamapayipi, PVCamaphrofayili, amafilimu e-PVC, izicathulo ze-PVC, izintambo ze-PVC nezintambo, izitezi ze-PVC nokunye. I-emulsion PVC isetshenziselwa ukukhiqiza: amagilavu ​​e-PVC, isikhumba sokwenziwa se-PVC, i-wallpaper ye-PVC, amathoyizi e-PVC, njll.
Ubuchwepheshe bokukhiqiza be-PVC buhlala buvela eYurophu, e-USA naseJapane. Umthamo wokukhiqiza we-PVC womhlaba wonke ufinyelele amathani ayizigidi ezingama-60, futhi iChina yaba ingxenye yomhlaba. E-China, i-80% ye-PVC ikhiqizwa inqubo ye-calcium carbide kanye ne-20% ngenqubo ye-ethylene, ngoba i-China ibilokhu iyizwe elinamalahle amaningi namafutha amancane.