Effect of grafting alkoxysilane on the surface properties of Kevlar fiber

被引：53

作者：

Ai, Tao ^{[1
]}

Wang, Rumin ^{[1
]}

Zhou, Wenying ^{[1
]}

机构：

[1] Northwestern Polytech Univ, Sch Sci, Dept Appl Chem, Xian 710072, Peoples R China

来源：

POLYMER COMPOSITES | 2007年 / 28卷 / 03期

关键词：

D O I：

10.1002/pc.20313

中图分类号：

TB33 [复合材料];

学科分类号：

摘要：

This research applied the methodology of metalation and grafting alkoxysilane to modify the surface of Kevlar-29 fiber. The surface properties of the modified Kevlar fiber were characterized by scanning electron microscopy, X-ray photoelectron spectroscopy, Fourier transform infrared spectroscopy, atomic force microscopy, and Brunauer-Emmett-Teller isothermal adsorption analysis. The relationship between surface characteristics of Kevlar fiber and its interfacial adhesion of Kevlar fiber-reinforced epoxy resin composites was also discussed. Compared with the untreated fiber, the surface of the modified Kevlar fiber was much rougher, its oxygen content increased by about 12%, the surface area enlarged about 10 times, and the wetting behavior improved. Due to the modification of the fiber, the adhesion between the fiber and the resin matrix was markedly improved and the Interlaminar Shear Strength of its epoxy composites increased by about 57%.

引用

页码：412 / 416

页数：5

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