中国塑料 ›› 2007, Vol. 21 ›› Issue (4): 35-38.

• 材料与性能 • 上一篇    下一篇

温差共混法制备聚丙烯/热致液晶原位增强复合材料

杨乐,梁军,杨卫民,丁玉梅*,杨高品,粟志彪   

  1. 北京化工大学机电工程学院,北京100029
  • 出版日期:2007-04-26 发布日期:2021-05-11
  • 基金资助:
    北京市自然科学基金资助项目(3062015)

In-situ Reinforced PP/TLCP Composite Prepared by Temperature Difference Blending#br#

YANG Le,LIANG Jun,YANG Wei-min,DING Yu-mei*,YANG Gao-pin,SU Zhi-biao   

  1. School of Mechanical and Electrical Engineering, Beijing University of Chemical Technology, Beijing 100029, China
  • Online:2007-04-26 Published:2021-05-11

摘要: 采用温差共混法制备了聚丙烯艰}致液晶(PP/TLCP)原位增强复合材料,研究了其共混物微观形貌以及力学性能。SEM分析表明,TLCP在体系中的成纤效果受到其含量的影响,当TLCP含量达到30%时,体系的表层和芯层均形成取向良好的TLCP纤维。力学性能分析表明,当TLCP含量低于20%时,PP/TLCP共混物的拉伸强度和拉伸模量均随着TLCP含量的增加而提高,断裂伸长率则有所下降。

关键词: 聚丙烯, 热致液晶聚合物, 原位增强复合材料, 温差法

Abstract: Temperature difference blending (TDB) was applied to the preparation of PP/TLCP in situ reinforcement composites. Scanning electron micrographs (SEM) revealed that the deformation of TL-CP from droplets to fibrils in PP/TLCP system was affected by the content of the TLCP.  While the loading of TLCP approached 30%,TLCP fibrils took preferred orientation in both skin and core of the composites. The tensile strength and modulus increased with increasing content of TLCP (below 20%) at a cost of decreasing elongation at break.

Key words: polypropylene,  , thermotropic liquid crystalline polymer,  , in-situ reinforcement composite, temperature difference blending

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