热处理对聚甲醛/聚氧化乙烯共混材料结晶行为和力学性能的影响  

Effect of heat treatment on crystallization behaviors and mechanical properties of POM/PEO blends

作　　者：谢刚[1] 任德财[1,2] 张蕾[1] 马浩翔[1] 王百合[1] 迟旭阳[1] 高明月[1] 

机构地区：[1]黑龙江大学化学化工与材料学院功能高分子重点实验室,哈尔滨150080 [2]黑龙江东方学院食品与环境工程学部,哈尔滨150086

出　　处：《黑龙江大学工程学报》2011年第4期48-52,共5页Journal of Engineering of Heilongjiang University

基　　金：黑龙江省教育厅科学技术研究项目(12511378)

摘　　要：在聚甲醛(POM)/聚氧化乙烯(PEO)共混改性材料的成型加工过程中,采用了3种不同的热处理方法来改变共混材料的结晶形为,并且分析了对力学性能的影响。结果表明:共混材料在POM结晶温度下保温2h,然后在PEO结晶温度下保温2h,共混材料中POM的结晶度最大,PEO没有结晶,POM和PEO之间的分子作用力增强,有利于吸收能量增加韧性,因此可以获得综合力学性能良好的POM/PEO共混材料。The three heat treatment methods on crystallization behaviors and mechanical properties of POM/PEO blends in processing machinery were studied. It was showed that the blends were treated 2 hours at crystallization temperature of POM, and then 2 hours at crystallization temperature of PEO; At this moment, POM had crystallinity well and PEO did not have crystallinity in POM/PEO blend. POM and PEO had stronger force, it can absorbing energy and increase toughness. So the blends had pretty good comprehensive mechanical properties.

关 键 词：聚甲醛 聚氧化乙烯 热处理 结晶 力学性能 

分 类 号：O633.1[理学—高分子化学]