Ngenxa yokuthi izinsiza zokucubungula i-PVC ziyahambisana kakhulu ne-PVC futhi zinesisindo sama-molecule esiphezulu (cishe (1-2) × 105-2.5 × 106g/mol) futhi azinawo ufulawa wokumboza, zitholwa ukushisa nokuxubana ngesikhathi senqubo yokubumba. Ziqala zithambise futhi zibophe ngokuqinile izinhlayiya ze-resin ezizungezile. Ngokungqubuzana nokudluliselwa kokushisa, ukuncibilika (ijeli) kuyakhuthazwa. I-viscosity yokuncibilika ayinciphi, noma ikhuphuke; Ngenxa yokubanjwa kwamaketanga ama-molecule, ukuqina, amandla, kanye nokwandiswa kwe-PVC kuthuthukisiwe.
Ngaphezu kwalokho, ngenxa yokuthi izingxenye ezihambisanayo nezingahambisani ze-PVC zakha izinsiza zokucubungula ezinesakhiwo segobolondo eliyinhloko. Sekukonke, ayihambisani ne-PVC ngakho-ke isebenza njenge-lubricant yangaphandle, kodwa ayisheshi futhi yakha izikali, okunomthelela wokulibazisa ekuncibilikeni. Ngakho-ke, ngokusekelwe kulezi zici zohlelo lokusebenza, izinsiza zokucubungula i-PVC zingahlukaniswa ngezigaba ezimbili: ezibanzi nezigcobayo. Umsebenzi wezinsiza zokucubungula i-PVC ezibanzi ukunciphisa izinga lokushisa lokuncibilika, ukuthuthukisa amandla okushisa kanye nokufana, ukunciphisa ukuqhekeka kokuncibilika, nokunikeza ukuguguleka okukhulu. Le misebenzi inezinzuzo ezinkulu zokucubungula i-PVC: ukunciphisa izinga lokushisa lokuncibilika kusho ukwandisa isikhathi sokuqina kokushisa, ukuhlinzeka ngesici sokuphepha sokusetshenziswa kwezinto eziphinde zasetshenziswa, nokuvumela ukucutshungulwa okuqhubekayo; Amandla okushisa athuthukisiwe kanye nokuguguleka kokuncibilika okuncibilikile okuncibilikile, okusho ukuthi kungandisa isivinini sokucubungula, kusheshise ukubamba, futhi kuthuthukise ikhwalithi ebonakalayo kanye nokwenzeka; Kuthuthukise ukufana kokuncibilika, okunganciphisa ama-ripple ebusweni kanye nokuqhekeka kokuncibilika kwezinto ezikhishwe, ngaleyo ndlela kwandise umkhiqizo, kuthuthukise ukuguguleka kanye nokwakheka kokushisa.
Isikhathi sokuthunyelwe: Septhemba-05-2024
