Izindaba
Ukuvikelwa kwemvelo kanye nokusebenza kahle okuphezulu kuba isiqondiso sokuthuthukiswa kwezithasiselo zepulasitiki
Ukuvikelwa kwemvelo okuluhlaza kuyindikimba yokuthuthukiswa komphakathi wezimboni manje ezinsukwini, futhi Izithasiselo zePlastiki ziyingxenye ebalulekile yemboni yepulasitiki, kodwa inokungcola okungenakunakwa. I-China ingumkhiqizi omkhulu kunayo yonke emhlabeni kanye nomthengi wezithasiselo zepulasitiki, ngakho-ke isiqondiso sokuthuthukiswa esikhathini esizayo sigxile kakhulu ekulungisweni kwesakhiwo somkhiqizo kanye nokuthuthukiswa komkhiqizo.
Izithasiselo zokuguqulwa kwe-PVC
Izinsiza Zokucubungula ze-Pvc ziyizinsiza ezingathuthukisa ukusebenza kokucubungula kwe-resin, futhi kunezindlela ezintathu eziyinhloko zokwenza: ukukhuthaza ukuncibilika kwe-resin, ukuthuthukisa izakhiwo ze-rheological zokuncibilika nokunikeza umsebenzi wokugcoba. Khuthaza ukuncibilika kwe-resin: I-PVC resin esimweni sokushisa, ngaphansi kwesenzo sokuncibilika kwe-shear force ethile, i-modifier yokucubungula kuqala iyancibilika futhi inamathele ebusweni bezinhlayiya ze-resin ye-PVC, ukuhambisana kwayo ne-resin kanye nesisindo sayo samangqamuzana aphezulu, ukuze i-PVC viscosity kanye nokungqubuzana kukhule, ngaleyo ndlela kuphumelela ukucindezeleka kwe-shear kanye nokudlulisa ukushisa kwe-PVC ku-amel. Thuthukisa izakhiwo ze-rheological zokuncibilika: I-PVC yokuncibilika inamaphutha njengamandla angenamandla, i-ductility empofu kanye nokuqhekeka kwe-ncibilika, futhi izilungisi zokucubungula zingathuthukisa izakhiwo ze-rheological zokuncibilika. Indlela yokwenza kanje: ukwandisa i-viscoelasticity ye-VC melt, ngaleyo ndlela uthuthukise ukukhuliswa kwesikhunta futhi ukwandise amandla okuncibilika. Ukunikeza ukuthambisa: ingxenye ehambisanayo yesishintshi sokucubungula kanye ne-PVC iqala ukuncibilika ukuze kuthuthukiswe ukuncibilika; Izingxenye ezingahambelani ne-PVC zifuduka ngaphandle kwesistimu ye-resin encibilikisiwe, ngaleyo ndlela ithuthukise indawo yokukhulula.
