Investigation on Molding Process and Film Compatibility of Carbon Fiber/Epoxy Ultra-Thin Prepregs

ZHANG Guangcheng; ZHANG Hongming; XU Hengyuan; FENG Shaohong; LI Jianchuan

doi:10.16080/j.issn1671-833x.2018.14.040

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Investigation on Molding Process and Film Compatibility of Carbon Fiber/Epoxy Ultra-Thin Prepregs

更新时间：2025-10-30

- Investigation on Molding Process and Film Compatibility of Carbon Fiber/Epoxy Ultra-Thin Prepregs
- Aeronautical Manufacturing Technology Vol. 61, Issue 14, Pages: 40-44(2018)
- 作者机构：
  
  1. 西北工业大学理学院,西安,710072
  2. 航空工业成都飞机工业（集团）有限责任公司复材厂,成都,610092
- 作者简介：
- 基金信息：
- DOI：10.16080/j.issn1671-833x.2018.14.040
  CLC：
- Published：2018
- 稿件说明：
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张广成1，张鸿鸣1，徐恒元2，冯邵红2，李建川2. 碳纤维/环氧树脂超薄预浸料成型工艺及胶膜匹配性研究[J]. 航空制造技术, 2018, 61(14): 40-44.

ZHANG Guangcheng1, ZHANG Hongming1, XU Hengyuan2, FENG Shaohong2, LI Jianchuan2. Investigation on Molding Process and Film Compatibility of Carbon Fiber/Epoxy Ultra-Thin Prepregs. Aeronautical Manufacturing Technology, 2018, 61(14): 40-44.
张广成1，张鸿鸣1，徐恒元2，冯邵红2，李建川2. 碳纤维/环氧树脂超薄预浸料成型工艺及胶膜匹配性研究[J]. 航空制造技术, 2018, 61(14): 40-44. DOI： 10.16080/j.issn1671-833x.2018.14.040.

ZHANG Guangcheng1, ZHANG Hongming1, XU Hengyuan2, FENG Shaohong2, LI Jianchuan2. Investigation on Molding Process and Film Compatibility of Carbon Fiber/Epoxy Ultra-Thin Prepregs. Aeronautical Manufacturing Technology, 2018, 61(14): 40-44. DOI： 10.16080/j.issn1671-833x.2018.14.040.

摘要

采用DSC 分析了超薄碳纤维预浸料CF832/T700 所用树脂体系的固化反应动力学参数，通过正交试验研究了预吸胶工艺参数及固化工艺参数对超薄碳纤维复合材料层合板力学性能的影响规律，选用EA9696NW、LWF–2B 和FM73M 3 种不同胶膜对超薄预浸料面板与蜂窝芯共固化以确定最匹配的胶膜。结果表明，CF832/T700 预浸料的固化反应活化能为85.98kJ/mol，反应级数为一级反应，固化反应较慢，前固化温度、固化温度和后固化温度分别为115℃、135℃、171℃ ；通过弯曲及拉伸性能确定出的最佳预吸胶工艺参数为预吸胶温度60℃、预吸胶压力0.3MPa、预吸胶时间10min，最佳固化工艺参数为固化温度130℃、固化压力0.4MPa、固化时间2.5h；EA9696NW 胶膜对超薄预浸料面板及蜂窝芯的共固化效果最好。

Abstract

The curing reaction kinetic parameters of CF832/T700 ultra-thin carbon fiber prepreg/epoxy resin systems were studied through DSC tests. The influence laws of pre-absorbing process parameters and curing process parameters on the mechanical properties of ultra-thin carbon fiber composite laminates were investigated by orthogonal tests. The most suitable adhesive film was determined by using three different adhesive films of EA9696NW

LWF–2B and FM73M to co-cure the ultra-thin prepreg laminates and Nomex honeycomb. The results show that the curing reaction activation energy of CF832/T700 prepregs is 85.98kJ/mol

the curing reaction is a slow first-order reaction. The pre-curing temperature

curing temperature and post-curing temperature are 115℃

135℃ and 171℃

respectively. The bending and stretching experiments were carried out with the orthogonal analysis

the best pre-absorbing and curing process parameters are obtained

including pre-absorbing temperature 60℃

pre-absorbing pressure magnitude 0.3MPa and pre-absorbing time 10min. The best curing parameters of curing temperature

curing pressure and curing time are 130℃

0.4MPa and 2.5h. The EA9696NW adhesive film presents the best co-curing performance.

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