管材用抗冲共聚聚丙烯的研制  

Development of impact propylene block copolymer for tubing

作　　者：于建明[1] 袁春海[1] 成卫戍[1] 袁秀芳[1] 

机构地区：[1]中国石油化工股份有限公司北京燕山分公司聚丙烯事业部,北京102501

出　　处：《合成树脂及塑料》2007年第5期25-29,共5页China Synthetic Resin and Plastics

摘　　要：通过研究聚合、造粒生产工艺条件对管材用抗冲共聚聚丙烯(PP-B)产品性能的影响,并筛选出合适的抗氧剂体系.在工业装置上开发了PP-B管材专用树脂4240。其屈服拉伸强度超过21 MPa,低温冲击强度超过4.4 kJ/m^2,综合性能与国外同类产品相当。An appropriate antioxidant system was screened out for developing impact propylene block copolymer （PP-B） as speciality resin for tubing. The effects of process conditions of polymerization and pelletization on properties of the speciality resin were examined. The speciality resin produced in a commercial plant stood comparison with the overseas counterparts with its tensile yield strength over 21 MPa and low temperatuimpact strength above 4.4 k Jim2.

关 键 词：聚丙烯 抗冲共聚合 管材 研制 

分 类 号：TQ325.14[化学工程—合成树脂塑料工业]