PA6/UHMWPE/HDPE-g-MAH共混物反应增容作用的研究  

A STUDY ON REACTIVE COMPATIBILIZATION OF PA6/UHMWPE/HDPE-g-MAH BLNED

作　　者：孙国恩[1] 任露泉[1] 刘朝宗[1] 佟金[1] 殷敬华[2] 尹志辉[2] 姚占海[2] 

机构地区：[1]吉林工业大学化学分析中心,吉林长春130025 [2]中国科学院长春应用化学研究所,吉林长春130022

出　　处：《高分子材料科学与工程》2001年第2期64-67,共4页Polymer Materials Science & Engineering

基　　金：机械工业部技术发展基金资助项目

摘　　要：通过 DSC、SEM、Molau试验和力学性能测试 ,研究了 PA6/ UHMWPE共混过程中 HDPE- g- MAH对体系的增容作用、力学性能及结晶行为的影响。结果表明 ,共混体系为热力学不相容体系 ;在熔融共混过程中 ,PA6和 HDPE- g- MAH发生化学反应 ,生成的接枝共聚物对 PA6/ UHMWPE体系有增容作用 ,分散性和界面形态以及力学性能明显改善 ;共混体系中两相的结晶行为亦发生变化 。The reactive compatibilization of PA6/UHMWPE/HDPE g MAH copolymer as well as effects of HDPE g MAH on mechanic properties and crystallizing behavior of PA6/UHMWPE blend were studied through DSC, SEM, Molau and mechanical property test. The experimental results show that the two components in blends were in compatible thermodynamically. The grafted copolymer resulted from the reaction between PA6 and HDPE g MAH during melt blending act as compatibilizer, improving dispersion, interfacial morphology and mechanical property of blends obviously. The crystallization behavior of two components in PA6/UHMWPE blending system is also affected by the interactions between two phases. Compared with pure PA6, the Δ H f of PA6 components in PA6/UHMWPE blending system decreases obviously, while its T c increases.

关 键 词：尼龙6 超高分子 聚乙烯 反应性共混 相容性 反应增容作用 

分 类 号：TQ325.12[化学工程—合成树脂塑料工业]