Yikuphi ukulahlekelwa okuzobangelwa i-CPE ye-polyethylene e-chlorine esezingeni eliphansi ekucutshungulweni kwe-PVC?

I-Chlorinated polyethylene (CPE) iwumkhiqizo wokulungiswa kwe-chlorinated we-polyethylene (i-HDPE), esetshenziswa njengesilungisi sokucubungula se-PVC, Okuqukethwe kwe-chlorine ku-CPE kufanele kube phakathi kuka-35-38%. Ngenxa yokumelana nesimo sezulu esihle kakhulu, ukumelana nokubanda, ukumelana nelangabi, ukumelana nowoyela, ukumelana nomthelela (CPE i-elastomer), kanye nokuzinza kwamakhemikhali.
I-Chlorinated polyethylene (CPE) iwumkhiqizo wokulungiswa kwe-chlorinated we-polyethylene (i-HDPE), esetshenziswa njengesilungisi sokucubungula se-PVC, Okuqukethwe kwe-chlorine ku-CPE kufanele kube phakathi kuka-35-38%. Ngenxa yokumelana nesimo sezulu esihle kakhulu, ukumelana nokubanda, ukumelana nelangabi, ukumelana nowoyela, ukumelana nomthelela (i-CPE iyi-elastomer), nokuzinza kwamakhemikhali, kanye nokuhambisana kwayo okuhle ne-PVC, i-CPE isiphenduke isilungisi esiqinisa umthelela esisetshenziswa kakhulu ku-PVC. ukucubungula.
1 Ukumiswa Kwemolekyuli ye-HDPE
Ngenxa yezimo zenqubo ehlukene ngesikhathi sokusabela kwe-polymerization ye-PE, kunomehluko othile ekucushweni kwamangqamuzana nezakhiwo ze-polymer HDPE yayo. Izakhiwo ze-CPE ngemuva kokucwiliswa kwe-HDPE enezakhiwo ezahlukene nazo ziyahlukahluka. Abakhiqizi be-CPE kumele bakhethe i-HDPE ekhethekile ye-powder resins ukuze bakhiqize ama-CPE resins afanelekayo.
2. Izimo ze-chlorination, okungukuthi inqubo ye-chlorination
I-CPE, njengesilungisi se-PVC sokucubungula, ivamise ukwakhiwa ngokusabela kwe-chlorination kusetshenziswa indlela ye-aqueous suspension chlorination. Izimo eziyinhloko zale nqubo ye-chlorination amandla alula, isilinganiso sokuqalisa, ingcindezi yokusabela, izinga lokushisa lokusabela, isikhathi sokusabela, nezimo zokusabela ze-neutralization. Umgomo we-PE chlorination ulula, kodwa indlela yokufaka i-chlorination iyinkimbinkimbi kakhulu.
Ngenxa yokutshalwa kwezimali okuncane kumishini yokukhiqiza i-CPE, izitshalo eziningi ezincane zokukhiqiza ze-CPE sezivele zisakazeke kulo lonke elaseShayina. Lokhu akudali nje kuphela ukungcoliswa kwemvelo, kodwa futhi kungesinye sezizathu ezibalulekile zokungazinzi kwekhwalithi ye-CPE.
Njengamanje, kunenombolo enkulu ye-CPE yekhwalithi ephansi emakethe. Ngokuvamile, kunezinhlobo ezimbili ze-CPE yekhwalithi ephansi. Enye ingenxa yokuthi ezinye izitshalo ezikhiqizayo azinazo izimo zobuchwepheshe kanye nezinqubo zokugcotshwa kwe-chlorine eziphelelwe yisikhathi. Enye indlela ukuxuba inani elithile le-calcium carbonate noma i-talc powder ku-CPE ukuze uhlanganyele emncintiswaneni ongalungile.