1. I-polyethylene eklorini, ekwaziwa ngokuba yi-CPE ngesiNgesi, luhlobo lwe-polyethylene. I-polyethylene eklorini (CPE) yinto efunyanwa ngokutshintsha ii-athomu ze-hydrogen kwi-polyethylene enoxinano oluphezulu (HDPE) ngee-athomu ze-chlorine. I-CPE ibonakala njengomgubo omhlophe, ongenatyhefu kwaye ongenavumba.
2. I-polyethylene ene-chlorine eyenziwe nge-polyethylene ene-low-pressure HDPE inokumelana ngcono nobushushu obuphezulu kunye nokuguga okushushu kune-polyethylene ene-chlorine eyenziwe nge-polyethylene ene-high-pressure. Ngokuqhelekileyo, i-polyethylene enobunzima obuyi-0.93-0.96g/cm3, ubunzima obuphakathi be-molecular obuyi-50000 ukuya kwi-250000, kunye ne-melt index ephakathi kwe-0.01 kunye ne-2.0g/10min isetyenziswa kakhulu ukuvelisa i-chlorine ene-chlorine. Iqondo le-chlorine ye-chlorine ene-chlorine linempembelelo enkulu kwiimpawu zayo. Xa umxholo we-chlorine ungaphantsi kwe-15%, uba yiplastiki; Xa umxholo we-chlorine uyi-16-24%, iba yi-thermoplastic elastomer; Ii-elastomers ezifana nerabha ezinomxholo we-chlorine phakathi kwe-25-48%; Xa umxholo we-chlorine uyi-49-58%, iba yi-semi-elastic hard polymer efana nesikhumba; Xa umxholo we-chlorine ufikelela kwi-73%, uba yi-resin ebuthathaka. Ukungenisa malunga ne-27% ye-chlorine kwi-polyethylene enoxinzelelo oluphezulu kuphelisa ngokupheleleyo i-crystallization, ngelixa ukufaka malunga ne-30% ye-chlorine kwi-polyethylene enoxinzelelo oluphantsi kunye ne-crystallinity ephezulu kuphelisa ngokupheleleyo i-crystallization. Njenge-elastomer yerabha, umxholo we-chlorine ungcono phakathi koluhlu lwe-30-40%. Okwangoku, umxholo we-chlorine werabha ye-polyethylene ene-chlorine yorhwebo uninzi lwayo lukuluhlu lwe-25-45%. Xa umxholo we-chlorine unyuka, ukumelana neoyile, ukuphefumla, kunye nokungalali kakuhle komlilo kuyaphucuka; Xa umxholo we-chlorine uncipha, ukumelana nokubanda, ukuqina, kunye nokusebenza kokugoba okucinezelweyo kungcono.
2. Iimpawu zeChlorinated Polyethylene CPE
1) I-CPE yirabha egcweleyo enokumelana kakuhle nobushushu kunye neoksijini, ukumelana nokuguga kwe-ozone, ukumelana ne-asidi kunye ne-alkali, kunye neempawu zeekhemikhali.
2) I-CPE inokumelana kakuhle neoyile, inokumelana okuhle neoyile ye-ASTM 1 kunye neoyile ye-ASTM 2, efana ne-NBR; Ukumelana okuhle neoyile ye-ASTM No. 3, ingaphezulu kune-CR kwaye ifana ne-CSM.
3) I-CPE iqulethe i-chlorine element, eneempawu ezibalaseleyo zokungatshisi ilangatye kwaye ineempawu zokutsha kunye nokungatyisi. Ingadityaniswa ne-antimony based flame retardants, i-chlorinated paraffin, kunye ne-Al (OH) 3 ngokwemilinganiselo efanelekileyo ukuze kufunyanwe izinto zokungatshisi ilangatye ezinexabiso eliphantsi kunye nokungatshisi ilangatye.
4) I-CPE ayinabungozi, ayinazo iintsimbi ezinzima kunye nee-PAH, kwaye ihlangabezana ngokupheleleyo neemfuno zokusingqongileyo.
5) I-CPE inomgangatho ophezulu wokuzalisa kwaye inokuvelisa iimveliso ezihlangabezana neemfuno ezahlukeneyo zokusebenza. I-CPE inomgangatho omhle wokucubungula, kwaye kukho amanqanaba amaninzi onokukhetha kuwo nge-Mooney viscosity ephakathi kwama-50-100.
Ixesha leposi: Matshi-01-2025
