Effect of sizing agent on interfacial shear strength of carbon fibre composites

被引：5
作者：
Guo, C. C. [1 ]
Zhao, Y. [1 ]
Chen, D. [1 ]
Zhan, M. S. [1 ]
机构：
[1] Beihang Univ, Sch Mat Sci & Engn, Beijing 100191, Peoples R China
来源：
MATERIALS RESEARCH INNOVATIONS | 2014年 / 18卷
关键词：
Carbon fibre; Sizing agent; Surface characterisation; Interfacial shear strength; TRIBOLOGICAL PROPERTIES; TENSILE PROPERTIES; SURFACE; OXIDATION; ADSORPTION; PROPERTY; ADHESION; EPOXY; PITCH;
D O I：
10.1179/1432891714Z.000000000880
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The influence of two types of sizings (3#, 4#) on the surface of carbon fibres, and interface of carbon fibre composites were investigated. It was found that the surface topography of carbon fibres studied appeared to consist of grooves along the fibre axial direction. Sizing decreased the roughness of fibres surface, and the surface roughness value (Ra) for the 3# sized fibre was higher than that of the 4# sized fibre. X-ray photoelectron spectroscopy (XPS) result shows that the percentages of functional group -C-OH or -C-OR on the 4# sized fibre was less than that of 3# sized fibre, but the percentages of functional group containing oxygen -C=O on the 4# sized fibre was more than that of 3# sized fibre. The 4# sizing can improve the soakage of LY-1 epoxy resin to carbon fibre when compared to the 3# sizing. In addition, the IFSS of 4# sized fibre/LY-1 epoxy resin monofilament composite was 44.66 MPa, presenting 120% higher than 3# sized fibre. Therefore, 4# sized fibre has a stronger bond with the resin matrix compared with 3# sizing fibre.
引用
收藏
页码：997 / 1002
页数：6
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