中国塑料 ›› 2012, Vol. 26 ›› Issue (01): 54-58 .DOI: 10.19491/j.issn.1001-9278.2012.01.010

• 材料与性能 • 上一篇    下一篇

聚丙烯/马来酸酐接枝聚丙烯/环氧树脂/玻璃纤维复合材料的制备及其性能研究

梁珊 罗筑 于杰 李杨 李庆丰 涂兴文   

  1. 国家复合改性聚合物材料工程技术研究中心
  • 收稿日期:2011-09-28 修回日期:1900-01-01 出版日期:2012-01-26 发布日期:2012-01-26

Preparation and Properties of Polypropylene/PP-g-MAH/Epoxy Resin/Glass Fiber Composites

LIANG Shan LUO Zhu YU Jie LI Yang LI Qingfeng TU Xingwen   

  • Received:2011-09-28 Revised:1900-01-01 Online:2012-01-26 Published:2012-01-26
  • Contact: LIANG Shan

摘要: 通过双螺杆挤出机制备了聚丙烯/马来酸酐接枝聚丙烯/环氧树脂/玻璃纤维(PP/PP-g-MAH/EP/GF)复合材料,并研究了PP-g-MAH含量、EP含量及固化剂对复合材料力学性能的影响。结果表明,PP-g-MAH含量为10份,含有固化剂EP的含量为3份时,复合材料的综合力学性能最佳;与不加EP的复合材料相比,其拉伸强度、弯曲强度、冲击强度分别提高了41 %、47 %、86 %。扫描电子显微镜分析表明,EP的加入明显改善了GF和PP基体的黏结强度。

关键词: 玻璃纤维, 聚丙烯, 环氧树脂, 力学性能, 黏结强度, 马来酸酐接枝聚丙烯

Abstract: The composites of polypropylene/maleic anhydride grafted polypropylene/epoxy resin/glass fiber (PP/PP-g-MAH/EP/GF) were prepared via a twin-screw extruder. Effects of contents of PP-g-MAH, epoxy resin and curing agent on mechanical properties of the composites were studied. It showed that the tensile strength, the flexural strength, and the impact strength of the composites were increased by 41 %, 47 % and 86 %, respectively, compared with the composites without epoxy resin. The optimal mechanical properties of the composites were obtained when the contents of PP-g-MAH and EP containing curing agent were 10 phr and 3 phr, respectively. SEM showed that the bonding strength between GF and PP had been improved with the addition of epoxy resin.

Key words: glass fiber, polypropylene, epoxy resin, mechanical property, bonding strength, maleic anhydride grafted polypropylene

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