复合材料科学与工程 ›› 2020, Vol. 0 ›› Issue (12): 59-63.

• 应用研究 • 上一篇    下一篇

中低温固化碳纤维预浸料的制备与性能

廖国峰1,2, 杨小兵1,2, 吕飘飘1,2, 叶国方1,2, 高艳1,2, 刘端娜1,2   

  1. 1.精功(绍兴)碳纤维复合材料有限公司,绍兴312030;
    2.精功(绍兴)复合材料技术研发有限公司,绍兴312030
  • 收稿日期:2020-03-20 发布日期:2020-12-30
  • 作者简介:廖国峰(1992-),男,硕士,工程师,主要从事环氧树脂配方以及复合材料设计开发方面的研究,wish_liao@163.com。
  • 基金资助:
    浙江省绍兴市柯桥区高层次人才引进创新项目(ACX201806)

PREPARATION AND PROPERTIES OF MODERATE TO LOW TEMPERATURE CURING CARBON FIBER PREPREG

LIAO Guo-feng1,2, YANG Xiao-bing1,2, LV Piao-piao1,2, YE Guo-fang1,2   

  1. 1. Jinggong (Shaoxing) Carbon Fiber Composite Materials Co., Ltd., Shaoxing 312030, China;
    2. Jinggong (Shaoxing) Composite Material Technology R&D Co., Ltd., Shaoxing 312030, China
  • Received:2020-03-20 Published:2020-12-30

摘要: 开发了可在中低温下完成固化并适用于热熔法制备预浸料的环氧树脂体系。通过对树脂体系的粘度-温度变化、凝胶时间-温度关系和固化特征的分析,确定了树脂体系的组分配方及固化制度。同时探究了滚筒的温度和压力对纤维浸润性的影响,确定了最佳工艺参数。研究表明,制备的T700碳纤维预浸料具有良好的工艺性以及力学性能,其纵向拉伸强度为2588 MPa,纵向压缩强度为1229 MPa,弯曲强度为1749 MPa,层间剪切强度为83 MPa。

关键词: 复合材料, 预浸料, 环氧树脂, 中低温固化

Abstract: The epoxy resin system were developed, which can be cured at moderate to low temperatures and suitable for hot-melt processing of perpergs. The formulation and curing system of the resin system were determined by analyzing the viscosity-temperature change of the resin system, the gel time-temperature relationship and the curing characteristics. The effects of temperature and pressure of the drum on fiber wettability were studied. The results show that the preperg T700 carbon fiber perperg exhibits good processibility and mechanical properties. Moreover, the longitudinal tensile, longitudinal compressive, bending strength, short beam shear strength of the T700 carbon fiber perperg was 2588 MPa, 1229 MPa, 1749 MPa, and 83 MPa, respectively.

Key words: composite, perperg, epoxy resin, moderate to low temperatures curing

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