复合材料科学与工程 ›› 2015, Vol. 0 ›› Issue (2): 28-31.

• 基础研究 • 上一篇    下一篇

短切碳纤维增强硬质聚氨酯泡沫复合材料压缩强度与形貌研究

余训章   

  1. 上海玻璃钢研究院有限公司,上海201404
  • 收稿日期:2014-08-14 出版日期:2015-02-28 发布日期:2021-09-14
  • 作者简介:余训章(1981-),男,工程师,主要从事复合材料方面的研究,shfrpyxz@163.com。

STUDY ON COMPRESSION STRENGTH AND MORPHOLOGY OF CHOPPED CARBON FIBER REINFORCED POLYURETHANE FOAM

YU Xun-zhang   

  1. Shanghai FRP Research Institute Co., Ltd., Shanghai 201404, China
  • Received:2014-08-14 Online:2015-02-28 Published:2021-09-14

摘要: 本文研究了短切碳纤维增强硬质聚氨酯泡沫复合材料的压缩强度和形貌。探讨了不同短切碳纤维含量对硬质聚氨酯泡沫力学性能的影响,利用光学显微镜和扫描电镜观察了不同短切碳纤维含量情况下,硬质聚氨酯泡沫复合材料泡孔形成情况及试样破坏的微观相貌。研究结果表明,当短切碳纤维含量为30%时,硬质聚氨酯泡沫复合材料的压缩强度最大,泡体泡孔均匀致密;当短切碳纤维含量超过30%后,开始出现了大量闭孔和塌泡,碳纤维与聚氨酯泡孔剥离,力学强度下降。

关键词: 短切碳纤维, 聚氨酯泡沫, 压缩强度, 微观形貌

Abstract: The compression strength and morphology of chopped carbon fiber reinforced polyurethane foam was studied in this paper. The effects of chopped carbon fiber content on the mechanical properties of polyurethane foam were discussed, and the formation conditions of polyurethane foam holes and the destruction of microstructure were investigated by optical microscope and SEM. Results showed that when the chopped carbon fiber content is 30%, the compression strength of polyurethane foam was optimum and the holes were uniform. When the chopped carbon fiber content exceeded 30%, obturators and bubble collapse began to appear, and carbon fiber separated from polyurethane foam and the mechanical strength decreased.

Key words: chopped carbon fiber, polyurethane foam, compression strength, microstructure

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