Modification of tensile, wear and interfacial properties of Kevlar fibers under cryogenic treatment

注意:本论文已在Composites Part B: Engineering, 2017, 116: 398-405.发表

Fujun Xu a, b, Wangxizi Fan a, Yinnan Zhang a, Yang Gao a, Zhemin Jia c, Yiping Qiu a, b, **,
David Hui d, *
a Key Laboratory of Textile Science & Technology, Ministry of Education, Donghua University, Shanghai 201620, People's Republic of China
b College of Textiles, Donghua University, Shanghai 201620, People's Republic of China
c School of Aerospace Engineering and Applied Mechanics, Tongji University, Shanghai 200092, People's Republic of China
d Department of Mechanical Engineering, University of New Orleans, New Orleans, LA 70148, USA

The weak wear and interfacial properties of the aramid fiber were the main obstacles to limit its practical applications. In this study, a simple and environmental friendly method, cryogenic treatment was adopted to treat the Kevlar fiber by different cooling rates. After cryogenic conditions, the tensile, wear and interfacial shear strength (IFSS) properties of Kevlar fiber were all enhanced. The tensile strength of the aramid fiber conditioned in sharp cooling rate (QM process) increased by 24.9%, while that of the fiber conditioned in low cooling rate (TPCM process) slightly increased. Moreover, the abrasion duration of the fiber increased 51.6% and 51.1% under QM and TPCM treatments. The scanning electron microscope (SEM) and atomic force microscope (AFM) results showed that the surface roughness of the aramid fibers increased 32% and 73% after conditioned in QM and TPCM processes, respectively. Consequently, the IFSS of the fiber/epoxy resin increased 5.7% and 19% once treated by QM and TPCM processes. The cryogenic treatment was demonstrated as an effective method to enhance tensile strength, abrasion resistance and interfacial properties of Kevlar fiber for practical applications.
Keywords:Aramid fibre;Fibre/matrix bond;Wear;Mechanical testing;Cryogenic

1浏览PDF格式全文需要使用软件--Abode Acrobat(由于软件较大并常见,我站不提供下载)



1、 Tensile and interfacial properties of polyacrylonitrile-based carbon fiber after different cryogenic treated condition
2、Characterization of enhanced interfacial bonding between epoxy and plasma functionalized carbon nanotube films
3、X-ray 3D microscopy analysis of fracture mechanisms for 3D orthogonal woven E-glass/epoxy composites with drilled and moulded-in holes
4、Flexible strain sensor based on aerogel-spun carbon nanotube yarn with a core-sheath structure



返回首页 | CIMS论文 | 并行工程 | 虚拟制造 | 敏捷制造 | 其他论文 | 项目开发 | 学术资源 | 站内全文搜索 | 免费论文网站大全 |

line.gif (4535 字节)





All rights reserved, all contents copyright 2000-2019