Effects of CaCl2 and Dopamine Treatment on Surface Structure and Properties of Aramid Fiber

被引：0
|
作者：
Zhu D. [1 ]
Gu T. [1 ]
Zheng Q. [1 ]
Yu J. [1 ,2 ]
Lu S. [1 ,2 ]
机构：
[1] Department of Polymer Materials and Engineering, College of Materials and Metallurgy, Guizhou University, Guiyang
[2] National Engineering Research Center for Compounding and Modification of Polymeric Materials, Guiyang
来源：
Lu, Shengjun (sjlu@gzu.edu.cn) | 1600年 / Sichuan University卷 / 33期
关键词：
Aramid fibers; Calcium chloride; Composites; Dopamine; Surface treatment;
D O I：
10.16865/j.cnki.1000-7555.2017.10.006
中图分类号：
学科分类号：
摘要：
Calcium chloride(CaCl2) ethanol solution and dopamine aqueous solution immersion method were used to treat aramid fiber for surface modification and chemical structure, microstructure, surface roughness, monofilament tensile strength of aramid fiber and aramid interface property of fiber/epoxy composites were studied. The results show that after the aramid fibers are treated with CaCl2 ethanol, etching out the groove on the aramid fiber surface, the surface roughness increases, the interlaminar shear strength of aramid fiber/epoxy resin composites is improved significantly, and due to damage of the fiber structure, monofilament tensile strength is decreased by 11.12%; using aqueous solution of dopamine processing, dopamine coating is deposited on the surface of aramid fiber, the surface roughness increases, the interlaminar shear strength of aramid fiber/epoxy resin composite material raises further, the fiber structure is almost unaffected, monofilament tensile strength decreases slightly; using CaCl2 ethanol solution and dopamine aqueous solution to deal with aramid fiber, poly(dopamine) coating on the surface of the fiber becomes more dense, the interlaminar shear strength of the composite reaches the maximum, and the modified fiber has certain ultraviolet resistance. This method is the optimal modification effect. © 2017, Editorial Board of Polymer Materials Science & Engineering. All right reserved.
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页码：29 / 33
页数：4
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