热致液晶／PEEK／嵌段共聚物共混体系的结构与性能  

Structure, Properties of the Blend of Thermotropic Liquid Crystalline Polymer PEEK and Block Copolymer

作　　者：马宇[1] 王尚尔[1] 杨宝泉[1] 张宏放[1] 莫志深[1] 王军佐[1] 吴忠文 

机构地区：[1]中国科学院长春应用化学研究所高分子物理开放实验室,吉林大学化学系

出　　处：《应用化学》1996年第5期25-28,共4页Chinese Journal of Applied Chemistry

基　　金：国家自然科学基金;吉林省科委基金

摘　　要：用ＷＡＸＤ、ＳＥＭ及力学性能测试等研究热致液晶／ＰＥＥＫ／嵌段共聚物三元共混体系形态、结构和性能。结果表明嵌段共聚物的加入，使体系具有一定的相容性和较好的界面粘接，共混物的强度、模量有一定的提高，对共混物的结晶行为具有明显的影响，当热致液晶含量高时，基材与液晶两相间出现明显的分离现象，即“皮－芯”结构．The morphology, structure and properties of ternary blends VECTRA, PEEK,TOBC-PEEK were investigated using WAXD, SEM and mechanical test. With interfacial adhersion, the liquid crystalline polymer(LCP) could form microfiber in certain extent and disperse into the matrix of PEEK. The strength and modulus increased and reached the maximum in the blend containing 20% VECTRA. The crystallization behavior of the blend was obviously affected by the addition of block copolymer. SEM photographs showed that the high content of LCP possessed 'core-shell' structure.

关 键 词：三元共混物 结构 性能 热致液晶 聚醚醚酮 

分 类 号：O632[理学—高分子化学] TQ325[理学—化学]