复合材料科学与工程 ›› 2023, Vol. 0 ›› Issue (4): 34-40.DOI: 10.19936/j.cnki.2096-8000.20230428.005

• 基础研究 • 上一篇    下一篇

偶联剂对碳纤维增强乙烯基树脂复合材料界面性能影响研究

张振1,2, 王万杰1*, 彭运松2, 曹艳霞1, 李想2   

  1. 1.郑州大学 材料科学与工程学院,郑州450000;
    2.中国船舶重工集团第七二五研究所,洛阳471000
  • 收稿日期:2022-03-14 出版日期:2023-04-28 发布日期:2023-08-22
  • 通讯作者: 王万杰(1976—),男,博士,教授,主要从事高分子复合材料方面的研究,wwj@zzu.edu.cn。
  • 作者简介:张振(1996—),男,硕士研究生,主要从事高分子复合材料方面的研究。

Effect of coupling agent on the interfacial properties of carbon fiber reinforced vinyl resin composites

ZHANG Zhen1,2, WANG Wanjie1*, PENG Yunsong2, CAO Yanxia1, LI Xiang2   

  1. 1. School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450000, China;
    2. The 725 Research Institute of China Shipbuilding Industry Corporation, Luoyang 471000, China
  • Received:2022-03-14 Online:2023-04-28 Published:2023-08-22

摘要: 本文采用偶联剂添加的方法,分别研究了偶联剂种类、偶联剂用量、添加工艺对碳纤维增强乙烯基树脂复合材料性能的影响。分别使用硅烷偶联剂和大分子偶联剂对复合材料进行改性,结果显示大分子偶联剂对碳纤维增强乙烯基树脂复合材料的性能提升更为显著。对于不同种类的碳纤维织物,大分子偶联剂的增强效果不同。对于某国产T700碳纤维织物,随着大分子偶联剂的加入,复合材料性能不断提升,当用量为1.5%时,其层间剪切强度提升了41.4%(由24.4 MPa升至34.5 MPa)。而将大分子偶联剂用于某东丽T700碳纤维织物的改性时,其性能呈现出下降的趋势。此外,对比采用不同添加工艺时复合材料的性能提升幅度和数据分散性发现,大分子偶联剂在树脂中添加使用的工艺优于对碳纤维织物表面喷涂使用的工艺。

关键词: 碳纤维增强树脂基复合材料, 偶联剂, 界面

Abstract: In this paper, the effects of the types of coupling agent, the amounts of coupling agent and the adding process on the properties of carbon fiber reinforced vinyl resin composites were studied by adding coupling agent. Silane coupling agent and macromolecule coupling agent were used to modify the composites respectively. The results showed that macromolecule coupling agent improved the properties of carbon fiber reinforced vinyl resin composites more significantly. For different kinds of carbon fiber fabric, the enhancement effect of macromolecule coupling agent is different. For a domestic T700 carbon fiber fabric, with the addition of macromolecular coupling agent, the performance of the composite material is constantly improved, and when the dosage is 1.5%, the interlaminar shear strength increases 41.4% (from 24.4 MPa to 34.5 MPa). However, when the macromolecule coupling agent is used to modify a Toray T700 carbon fiber fabric, its properties show a trend of decline. In addition, by comparing the performance improvement and data dispersion of composite materials with different adding processes, it is found that the process of adding macromolecule coupling agent into resin is better than that of spraying on the surface of carbon fiber fabric.

Key words: carbon fiber reinforced resin matrix composites, coupling agent, interface

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