Kuyini i-PVC?

I-PVClifinyeziwe igama elithi polyvinyl chloride, futhi ukubukeka kwalo kuyimpuphu emhlophe. I-PVC ingenye yepulasitiki ezinhlanu ezivamile emhlabeni. Isetshenziswa kabanzi emhlabeni jikelele, ikakhulukazi emkhakheni wokwakha. Kunezinhlobo eziningi ze-PVC. Ngokusho komthombo wezinto zokusetshenziswa, ingahlukaniswa ibei-calcium carbideindlela kanyeindlela ye-ethylene. Izinto zokusetshenziswa zendlela ye-calcium carbide zivela kakhulu kumalahle nosawoti. Izinto zokusetshenziswa zenqubo ye-ethylene zivela kakhulu ku-oyili ongahluziwe. Ngokwezinqubo ezahlukene zokukhiqiza, ingahlukaniswa ngendlela yokumiswa kanye nendlela ye-emulsion. I-PVC esetshenziswa ensimini yokwakha empeleni iyindlela yokumiswa, kanti i-PVC esetshenziswa ensimini yesikhumba empeleni iyindlela ye-emulsion. I-Suspension PVC isetshenziswa kakhulu ukukhiqiza: i-PVCamapayipi, I-PVCamaphrofayili, amafilimu e-PVC, izicathulo ze-PVC, izintambo nezintambo ze-PVC, phansi kwe-PVC njalo njalo. I-Emulsion PVC isetshenziswa kakhulu ukukhiqiza: amagilavu ​​​​e-PVC, isikhumba sokwenziwa se-PVC, iphepha lodonga le-PVC, amathoyizi e-PVC, njll.
Ubuchwepheshe bokukhiqiza i-PVC buvela eYurophu, e-USA naseJapane. Amandla okukhiqiza i-PVC emhlabeni wonke afinyelela amathani ayizigidi ezingama-60, kanti iShayina yakha ingxenye yomhlaba. EShayina, ama-80% e-PVC akhiqizwa ngenqubo ye-calcium carbide kanye nama-20% ngenqubo ye-ethylene, ngoba iShayina ibilokhu iyizwe elinamalahle amaningi namafutha amancane.