Imikhiqizo ye-PVC eyenza amagwebu imhlophe, kodwa ngezinye izikhathi iba phuzi uma igcinwe isikhathi eside. Siyini isizathu?

Okokuqala, udinga ukunquma ukuthi ngabe kunenkinga nge-ejenti ekhethiwe yokugwedla. Isilawuli se-PVC esenza amagwebu sisebenzisa i-ejenti ekhihlizayo ukubola nokukhiqiza igesi ebangela izimbotshana. Lapho izinga lokushisa lokucubungula lingafinyelela izinga lokushisa lokubola le-ejenti enegwebu, ngokwemvelo ngeke libe negwebu. Izinhlobo ezahlukene zama-ejenti agwebu zinamazinga okushisa ahlukene okubola, ngisho noma uhlobo olufanayo lwe-ejenti enegwebu lukhiqizwa abakhiqizi abahlukene, izinga lokushisa lokubola lingase lingafani ncamashi. Khetha isilawuli sogwebu se-PVC esikufanele. Akuwona wonke ama-PVC afaneleka ukwenza amagwebu, ngakho-ke kuyadingeka ukukhetha izinto ezineziqu eziphansi ze-polymerization. Izinto ezinjalo zinezinga lokushisa eliphansi lokucubungula, njenge-S700. Uma ufuna ukusebenzisa u-1000 no-700, kungase kuhluke. I-ejenti ekhipha amagwebu kungenzeka ukuthi isivele ibolile futhi i-PVC ayikancibiliki.

Ngaphezu kwalokho, kunezinye izithasiselo. Izinga lokushisa lokubola le-ejenti elenza amagwebu elivamile lingaphezulu kwezinga lokushisa lokucubungula le-PVC. Uma izithasiselo ezifanele zingengezwe, umphumela uba ukuthi i-PVC iyabola (iphenduka ibe phuzi noma ibe mnyama) futhi i-ACR ayikaboli (amagwebu). Ngakho-ke, kuyadingeka ukwengeza iziqinisi ukugcina i-PVC izinzile (ayiboli ekushiseni kwesilingo se-AC). Ngakolunye uhlangothi, izithasiselo ezikhuthaza ukugwebulwa kwe-AC ziyengezwa ukuze kuncishiswe izinga lokushisa lokubola le-AC futhi lihambisane nayo. Kukhona futhi izithasiselo zokwenza ama-foam pores amancane futhi aminyene, okuwukugwema ama-foam amakhulu aqhubekayo futhi unciphise amandla omkhiqizo. Njengoba izinga lokushisa liphansi futhi lingasaphuzi, ngingaqinisekisa ukuthi izinga lokushisa lakho eliphezulu langaphambilini libangele ukuthi i-PVC ibole futhi ibe phuzi. Ukubola kwe-PVC kuyindlela yokuzithuthukisa, okusho ukuthi izinto ezibolile zithuthukisa ukubola okwengeziwe. Ngakho-ke, kuvame ukubonakala ukuthi kulungile uma izinga lokushisa lingekho phezulu, kodwa uma izinga lokushisa liphakeme kancane, lizobola ngobuningi.