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

doi:10.19936/j.cnki.2096-8000.20230428.005

Abstract

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

CLC Number:

TB332

ZHANG Zhen, WANG Wanjie, PENG Yunsong, CAO Yanxia, LI Xiang. Effect of coupling agent on the interfacial properties of carbon fiber reinforced vinyl resin composites[J]. COMPOSITES SCIENCE AND ENGINEERING, 2023, 0(4): 34-40.

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