Zeziphi iilahleko eziya kubangelwa yi-CPE ye-chlorine ekumgangatho ophantsi ekucutshungulweni kwe-PVC?

I-polyethylene ekhlorini (CPE) yimveliso yokuguqulwa kwe-chlorine eyenziwe nge-polyethylene enoxinano oluphezulu (HDPE), esetyenziswa njengesilungisi sokucubungula i-PVC, Umxholo we-chlorine we-CPE kufuneka ube phakathi kwama-35-38%. Ngenxa yokumelana kwayo nemozulu okuhle kakhulu, ukumelana nokubanda, ukumelana nelangatye, ukumelana neoyile, ukumelana nempembelelo (i-CPE yi-elastomer), kunye nokuzinza kweekhemikhali.
I-polyethylene ekhlorini (CPE) yimveliso yokuguqulwa kwe-chlorine eyenziwe nge-polyethylene enoxinano oluphezulu (HDPE), esetyenziswa njengesilungisi sokucubungula i-PVC. Umxholo we-chlorine we-CPE kufuneka ube phakathi kwama-35-38%. Ngenxa yokumelana kwayo kakuhle kwemozulu, ukumelana nokubanda, ukumelana nomlilo, ukumelana neoyile, ukumelana nempembelelo (CPE yi-elastomer), kunye nokuzinza kweekhemikhali, kunye nokuhambelana kwayo okuhle ne-PVC, i-CPE ibe yeyona modifier yokuqinisa impembelelo esetyenziswa kakhulu ekucutshungulweni kwe-PVC.
1 Uqwalaselo lweeMolekyuli zeHDPE
Ngenxa yeemeko ezahlukeneyo zenkqubo ngexesha le-polymerization reaction ye-PE, kukho umahluko othile kulwakhiwo lweemolekyuli kunye neempawu ze-polymer HDPE yayo. Iimpawu ze-CPE emva kwe-chlorination ye-HDPE eneempawu ezahlukeneyo nazo ziyahluka. Abavelisi be-CPE kufuneka bakhethe ii-resin zepowder ezikhethekileyo ze-HDPE ezifanelekileyo ukuze bavelise ii-resin ze-CPE ezifanelekileyo.
2. Iimeko ze-chlorination, oko kukuthi inkqubo ye-chlorination
I-CPE, njenge-modifier yokucubungula i-PVC, idla ngokwenziwa yi-chlorination reaction esebenzisa indlela ye-aqueous suspension chlorination method. Iimeko eziphambili zale nkqubo ye-chlorination ngamandla okukhanya, umthamo wokuqalisa, uxinzelelo lokuphendula, ubushushu bokuphendula, ixesha lokuphendula, kunye neemeko zokusabela ze-neutralization. Umgaqo we-PE chlorination ulula kakhulu, kodwa indlela ye-chlorination iyinkimbinkimbi ngakumbi.
Ngenxa yotyalo-mali oluncinci kwizixhobo zokwenza i-CPE, izityalo ezininzi ezincinci zemveliso ye-CPE sele zisasazeke kulo lonke elaseTshayina. Oku akupheleli nje ekubangeleni ungcoliseko kwindalo esingqongileyo, kodwa kukwangenye yezizathu ezibalulekileyo zokungazinzi komgangatho we-CPE.
Okwangoku, kukho inani elikhulu le-CPE ekumgangatho ophantsi kwimarike. Ngokubanzi, kukho iintlobo ezimbini ze-CPE ekumgangatho ophantsi. Enye ibangelwa kukuba ezinye izityalo zemveliso azinazo iimeko zobugcisa kunye neenkqubo ze-chlorination ezindala. Enye indlela kukuxuba inani elithile le-calcium carbonate okanye i-talc powder kwi-CPE ukuze kukhuphiswane ngokungafanelekanga.