I-PVC ingenye yepulasitiki esetshenziswa kakhulu embonini. I-Plasticol, inkampani yase-Italy eseduze neVarese ibilokhu ikhiqiza ama-granule e-PVC iminyaka engaphezu kwengu-50 manje futhi ulwazi oluqoqwe eminyakeni edlule luvumele ibhizinisi ukuthi lithole izinga elijulile lolwazi kangangokuthi manje sesingalusebenzisa ukwanelisa zonke izicelo zamakhasimende ezinikeza imikhiqizo emisha nethembekile.
Iqiniso lokuthi i-PVC isetshenziswa kabanzi ekukhiqizeni izinto eziningi ezahlukene libonisa ukuthi izici zayo zangaphakathi ziwusizo kakhulu futhi zikhethekile. Ake siqale ukukhuluma ngokuqina kwe-PVC: izinto ziqinile kakhulu uma zihlanzekile kodwa ziyaguquguquka uma zixutshwe nezinye izinto. Lesi sici esihlukile senza i-PVC ifanelekele ukwenziwa kwemikhiqizo esetshenziswa emikhakheni ehlukene, kusukela kweyakhayo kuya kweyezimoto.
Kodwa-ke, akuyona yonke into eyingqayizivele elula. Izinga lokushisa lokuncibilika kwale polymer liphansi impela, okwenza i-PVC ingafaneleki kulezo zindawo lapho amazinga okushisa aphezulu kakhulu angafinyelelwa khona.
Ngaphezu kwalokho, izingozi zingabangelwa iqiniso lokuthi, uma kushisa kakhulu, i-PVC ikhipha ama-molecule e-chlorine njenge-hydrochloric acid noma i-dioxin. Ukuthintana nalesi sici kungabangela izinkinga zempilo ezingenakulungiswa.
Ukuze i-polymer ihambisane nokukhiqizwa kwayo kwezimboni, ixutshwa neziqinisi, ama-plasticizer, ama-colorant, kanye nezinto zokugcoba ezisiza enqubweni yokukhiqiza kanye nasekwenzeni i-PVC ibe lula ukuyiguga futhi ingagugi kalula.
Ngokusekelwe ezicini zayo kanye nokuba yingozi kwayo, ama-granule e-PVC kufanele akhiqizwe ezitshalweni ezikhethekile. I-Plasticol inomugqa wokukhiqiza ozinikele kuphela kule nto yepulasitiki.
Isigaba sokuqala sokukhiqizwa kwama-granule e-PVC siqukethe ukudalwa kwamashubhu amade ezinto ezenziwe ngesitshalo esikhethekile sokukhipha. Isinyathelo esilandelayo siqukethe ukusika ipulasitiki ibe ubuhlalu obuncane kakhulu. Inqubo empeleni ilula kakhulu, kodwa kubaluleke kakhulu ukusebenzisa ukuqapha lapho uphatha izinto, uthatha izinyathelo zokuphepha eziyisisekelo ezingase zenze kube nzima kakhulu.
Isikhathi sokuthunyelwe: Novemba-23-2022