优化赫斯特工艺操作提升PE100级管材产品质量  

Improving the quality of PE100 grade pipe products by optimizing operation of Hotchest process

作　　者：陈丽[1] 李福贵[2] 于现建[2] 刘爱民[2] 曹晶磊[2] 

机构地区：[1]吉林化工学院化工与生物技术学院,吉林吉林132022 [2]中国石油吉林石化公司乙烯厂,吉林吉林132022

出　　处：《弹性体》2014年第2期64-68,共5页China Elastomerics

摘　　要：介绍了中国石油吉林石化公司30万t/a高密度聚乙烯装置提升PE100级管材产品JHMGC100S质量情况。通过优化赫斯特低压淤浆法中催化剂制备和聚合等生产工艺,指出关键参数熔融指数、熔流比和密度的调整思路,使产品熔融指数稳定性、拉伸屈服应力、拉伸断裂标称应变、简支梁冲击强度等重要指标不断提升,逐步解决PE100级管材产品氧化诱导期不稳定、加工性能差、内壁有麻点、拉伸屈服强度不够和个别批次静液压实验通不过等诸多难题。This article described the quality situation improving of the PE100 grade pipe products, which named JHMGC100S in high density polyethylene unit of PetroChina Jilin petrochemical company. I3y optimizing catalyst preparation and production in the low pressure slurry process, we pointed out the adjust thinking of the key parameter of melt index, melt flow ratio and density, which improving the production index of the stability of melt index, tensile yield stress, tensile breaking nominal strain,simply-supported beam impact stress and other important indexes. We gradually resolved the unstable oxidation induction of the PE100 grade pipe products,meanwhile resolved many other problems such as poor workability, inner wall pitting, inadequate tensile yield strength, static hydrostatic test can not be passed.

关 键 词：聚乙烯 催化剂 聚合 PE100级 产品质量 

分 类 号：TQ325.12[化学工程—合成树脂塑料工业]