Kini awọn adanu ti o ṣẹlẹ nipasẹ CPE polyethylene chlorinated didara kekere ni sisẹ PVC

Polyethylene Chlorinated (CPE) jẹ ọja iyipada chlorinated ti polyethylene iwuwo giga (HDPE).Gẹgẹbi iyipada sisẹ fun PVC, akoonu chlorine ti CPE yẹ ki o wa laarin 35-38%.Nitori awọn oniwe-o tayọ oju ojo resistance, tutu resistance, ina resistance, epo resistance, ikolu resistance (CPE jẹ ẹya elastomer), ati kemikali iduroṣinṣin.

Polyethylene Chlorinated (CPE) jẹ ọja iyipada chlorinated ti polyethylene iwuwo giga (HDPE).Gẹgẹbi iyipada sisẹ fun PVC, akoonu chlorine ti CPE yẹ ki o wa laarin 35-38%.Nitori awọn oniwe-o tayọ oju ojo resistance, tutu resistance, ina resistance, epo resistance, ikolu resistance (CPE jẹ ẹya elastomer), ati kemikali iduroṣinṣin, bi daradara bi awọn oniwe-dara ibamu pẹlu PVC, CPE ti di awọn julọ commonly lo ikolu toughening modifier ni PVC processing.

1. Molikula iṣeto ni ti HDPE
Nitori awọn ipo ilana oriṣiriṣi lakoko iṣesi polymerization ti PE, awọn iyatọ kan wa ninu iṣeto molikula ati awọn ohun-ini ti polima HDPE rẹ.Awọn ohun-ini ti CPE lẹhin chlorination ti HDPE pẹlu awọn ohun-ini oriṣiriṣi tun yatọ.Awọn olupilẹṣẹ CPE gbọdọ yan awọn resini lulú pataki HDPE ti o yẹ lati ṣe agbejade awọn resini CPE ti o peye.

2. Awọn ipo chlorination, ie ilana chlorination
CPE, gẹgẹbi oluyipada sisẹ PVC kan, jẹ idasile nigbagbogbo nipasẹ iṣesi chlorination nipa lilo ọna chlorination idadoro olomi.Awọn ipo bọtini ti ilana chlorination yii jẹ agbara ina, iwọn lilo olupilẹṣẹ, titẹ ifaseyin, iwọn otutu ifaseyin, akoko ifaseyin, ati awọn ipo ifasilẹ didoju.Awọn opo ti PE chlorination jẹ jo o rọrun, ṣugbọn awọn chlorination siseto jẹ eka sii.

Nitori idoko-owo kekere diẹ ninu ohun elo fun iṣelọpọ CPE, ọpọlọpọ awọn ohun ọgbin iṣelọpọ kekere ti CPE ti tuka tẹlẹ jakejado Ilu China.Eyi kii ṣe fa idoti nikan si agbegbe ilolupo, ṣugbọn tun jẹ ọkan ninu awọn idi pataki fun aisedeede ti didara CPE.

Lọwọlọwọ, nọmba nla ti CPE didara kekere wa lori ọja naa.Ni gbogbogbo, awọn oriṣi meji ti CPE didara kekere wa.Ọkan jẹ nitori diẹ ninu awọn iṣelọpọ iṣelọpọ ti ko ni awọn ipo imọ-ẹrọ ati awọn ilana chlorination ti igba atijọ.Ọna miiran ni lati dapọ iye kan ti kalisiomu carbonate tabi talc lulú ni CPE lati ṣe alabapin ninu idije ti ko tọ.