PE100级管材专用树脂的组成与流变性能  

Composition and rheological properties of PE-100 pipe resins

作　　者：黄强[1] 张凤波[1] 娄立娟[1] 王莉[1] 姜凯[1] 林海[2] 王艳芳[1] 吴林美[1] 

机构地区：[1]中国石油天然气股份有限公司石油化工研究院,北京市100195 [2]中国石油天然气股份有限公司华南化工销售分公司,广东省广州市510000

出　　处：《合成树脂及塑料》2015年第4期73-76,共4页China Synthetic Resin and Plastics

摘　　要：采用高温凝胶色谱仪、升温淋洗分级仪和旋转流变仪,研究了PE100级管材专用树脂的相对分子质量及其分布、化学组成及其对耐环境应力开裂性和加工性能的影响。结果表明：PE100级管材专用树脂的重均分子量约为20.0×10^4,相对分子质量分布约为18.0;组成按淋洗温度可分为3个组分（25-40,40-96,96-110℃）;双峰PE100级管材树脂的零切黏度约为5.00×10^5 Pa·s,而单峰PE100级管材树脂约为1.00×10^6 Pa·s。The relative molecular mass and its distribution and chemical constitution and their effects on environmental stress cracking resistance and processing properties of the PE100 pipe resins were studied by high temperature gel permeation chromatography（GPC）,temperature rising elution fractionation（TREF） and rotary rheometer.The results show that the weight average molecular mass of the PE100 pipe resins is about 20.0 × 10^4,the relative molecular mass distribution is about 18.0.The chemical constitution of the resins can be divided into three components（25-40,40-96 and 96-110 ℃） according to the elution temperature.The zero shear viscosity of bimodal PE-100 pipe resins is about 5.0 × 10^5 Pa· s,and that of unimodal PE-100 pipe resins is about 1.0×10^6Pa·s.

关 键 词：管材专用树脂 PE100级 耐环境应力开裂 双峰 支链 淋洗分级 零切黏度 

分 类 号：TQ325.12[化学工程—合成树脂塑料工业]