Mechanical performance of blends of thermotropic liquid crystalline polymer spheres-dispersed polycarbonate

被引：3
作者：
Xue, YF [1 ]
Zhang, J [1 ]
Zheng, XJ [1 ]
He, JS [1 ]
机构：
[1] Chinese Acad Sci, Inst Chem, Ctr Mol Sci, State Key Lab Engn Plast, Beijing 100080, Peoples R China
来源：
JOURNAL OF APPLIED POLYMER SCIENCE | 2003年 / 89卷 / 06期
关键词：
polycarbonates; liquid-crystalline polymers; morphology; mechanical properties; compatibilization;
D O I：
10.1002/app.12166
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Liquid crystalline polymer (LCP) blends with a thermotropic LCP dispersed in the form of microspheres is studied to show the role of LCP spheres. Polycarbonate (PC), p-hydroxybenzoic acid-poly(ethylene terephthalate)copolyester, and random styrene-maleic anhydride copolymer are used as the matrix, the dispersed phase, and thecompatibilizer, respectively. A scanning electron microscopy observation shows the formation of LCP spheres with improved interfacial adhesion in the injection-molded samples via compatibilization. The mechanical tests show in-creased modulus, elongation at break, and fracture-absorbed energy of blends of LCP spheres-dispersed PC. This shows an optimistic potential for the dispersed LCP phase, in spite of its morphology in the form of fibrils for reinforcing the matrix or in the form of microspheres for toughening the matrix. (C) 2003 Wiley Periodicals, Inc.
引用
收藏
页码：1493 / 1499
页数：7
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