Plasma penetration depth and mechanical properties of atmospheric plasma-treated 3D aramid woven composites

被引:25
作者
Chen, X. [1 ,2 ]
Yao, L. [1 ,2 ]
Xue, J. [1 ,2 ]
Zhao, D. [1 ,2 ]
Lan, Y. [1 ,2 ]
Qian, X. [1 ,2 ]
Wang, C. X. [1 ,2 ,3 ]
Qiu, Y. [1 ,2 ]
机构
[1] Donghua Univ, Dept Text Mat Sci & Prod Design, Coll Text, Shanghai 201620, Peoples R China
[2] Donghua Univ, Key Lab Text Sci & Technol, Minist Educ, Shanghai 201620, Peoples R China
[3] Yancheng Inst Technol, Coll Text & Clothing, Jiangsu 224003, Peoples R China
基金
国家高技术研究发展计划(863计划);
关键词
Plasma treatment; 3D composites; Aramid fibers; Interfacial adhesion; Penetration depth; Mechanical properties;
D O I
10.1016/j.apsusc.2008.08.028
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 [物理化学]; 081704 [应用化学];
摘要
Three-dimensional aramid woven fabrics were treated with atmospheric pressure plasmas, on one side or both sides to determine the plasma penetration depth in the 3D fabrics and the influences on final composite mechanical properties. The properties of the fibers from different layers of the single side treated fabrics, including surface morphology, chemical composition, wettability and adhesion properties were investigated using scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), contact angle measurement and microbond tests. Meanwhile, flexural properties of the composites reinforced with the fabrics untreated and treated on both sides were compared using three-point bending tests. The results showed that the fibers from the outer most surface layer of the fabric had a significant improvement in their surface roughness, chemical bonding, wettability and adhesion properties after plasma treatment; the treatment effect gradually diminished for the fibers in the inner layers. In the third layer, the fiber properties remained approximately the same to those of the control. In addition, three-point bending tests indicated that the 3D aramid composite had an increase of 11% in flexural strength and 12% in flexural modulus after the plasma treatment. These results indicate that composite mechanical properties can be improved by the direct fabric treatment instead of fiber treatment with plasmas if the fabric is less than four layers thick. (C) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码:2864 / 2868
页数:5
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