Properties of Chopped Fiber Reinforced Polyimide Composites

ZHANG Peng; DU Jianan; BAO Jianwen; ZHONG Xiangyu; LIU Gang; CHEN Xiangbao

doi:10.16080/j.issn1671-833x.2018.14.079

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Properties of Chopped Fiber Reinforced Polyimide Composites

更新时间：2025-10-30

- Properties of Chopped Fiber Reinforced Polyimide Composites
- Aeronautical Manufacturing Technology Vol. 61, Issue 14, Pages: 78-82(2018)
- 作者机构：
  
  1. 航空工业复合材料技术中心先进复合材料重点实验室,北京,101300
  2. 江西财经大学统计学院,南昌,330013
- 作者简介：
- 基金信息：
- DOI：10.16080/j.issn1671-833x.2018.14.079
  CLC：
- Published：2018
- 稿件说明：
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张朋1，杜家楠2，包建文1，钟翔屿1，刘刚1，陈祥宝1. 短切碳纤维增强聚酰亚胺复合材料性能[J]. 航空制造技术, 2018, 61(14): 78-82.

ZHANG Peng1, DU Jianan2, BAO Jianwen1, ZHONG Xiangyu1, LIU Gang1, CHEN Xiangbao1. Properties of Chopped Fiber Reinforced Polyimide Composites. Aeronautical Manufacturing Technology, 2018, 61(14): 78-82.
张朋1，杜家楠2，包建文1，钟翔屿1，刘刚1，陈祥宝1. 短切碳纤维增强聚酰亚胺复合材料性能[J]. 航空制造技术, 2018, 61(14): 78-82. DOI： 10.16080/j.issn1671-833x.2018.14.079.

ZHANG Peng1, DU Jianan2, BAO Jianwen1, ZHONG Xiangyu1, LIU Gang1, CHEN Xiangbao1. Properties of Chopped Fiber Reinforced Polyimide Composites. Aeronautical Manufacturing Technology, 2018, 61(14): 78-82. DOI： 10.16080/j.issn1671-833x.2018.14.079.

摘要

以短切T700（C–T700）碳纤维为增强材料，HT–350RTM 聚酰亚胺为树脂基体，采用模压成型工艺制备了短切碳纤维增强热固性聚酰亚胺复合材料（C–T700/HT–350RTM），研究了短切纤维体积分数对短切纤维聚酰亚胺复合材料线膨胀系数和力学性能的影响规律。结果表明，短切纤维聚酰亚胺复合材料的线膨胀系数随着短切纤维体积分数的增加而降低，拉伸、压缩、弯曲模量均随着短切纤维体积分数的提高而增加，而拉伸强度和弯曲强度先增加后降低，压缩强度则呈现随纤维体积分数缓慢增加的趋势。

Abstract

The chopped fiber reinforced thermosetting polyimide composites (C–T700/HT–350RTM) were produced through molding process

and the chopped T700 carbon fiber (C–T700) were chosen as reinforcing material

the HT–350RTM polyimide were chosen as resin matrix. The influences of changing carbon fiber volume fraction on the coefficient of linear expansion and mechanical properties of C–T700/HT–350RTM composites were investigated. The experimental results showed that the coefficient of linear expansion of C–T700/HT–350RTM composites decreased with the chopped fiber volume fraction increased

and the tensile modulus

compression modulus

flexural modulus increased with increasing chopped fiber volume fraction

while the tensile strength and flexural strength first increased and then decreased

the compressive strength has slowly increased with the increasing of chopped fiber volume fraction.

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