Improvement of interfacial strength and fatigue stability of aramid fiber/rubber composites by constructing multiscale interphase structures

被引:0
|
作者
Xu, Hui [1 ]
Chen, Yahui [1 ]
Xue, Junxiu [1 ]
Zhu, Donglin [1 ]
Bian, Huiguang [1 ]
Tian, Xiaolong [1 ]
Wang, Chuansheng [1 ,2 ]
机构
[1] College of Electromechanical Engineering, Qingdao University of Science and Technology, Shandong, Qingdao, China
[2] National Engineering Laboratory for Advanced Tire Equipment and Key Materials, Qingdao University of Science and Technology, Shandong Province, Qingdao,266061, China
基金
中国国家自然科学基金; 中国博士后科学基金;
关键词
Fatigue testing - High modulus textile fibers - Natural fibers - Rubber testing - Tensile strength - Tensile testing;
D O I
10.1016/j.jmrt.2024.09.257
中图分类号
学科分类号
摘要
In this paper, employing nanomechanical scrutiny of aramid fibers and rubber, novel interfacial layers of different thicknesses were designed between aramid fibers and rubber using polymerizable deep eutectic solvents. The investigation explored the correlations between interfacial layers of different thicknesses and the interfacial bonding properties, fatigue resistance and hysteresis of composites. Atomic force microscopy was used to identify the changes in the thickness and modulus of the interfacial layer before and after cyclic tensile fatigue testing. The interfacial modulus decreased rapidly at different locations after the fatigue test, and was even lower than the modulus of the rubber matrix. When the thickness of the interfacial layer was ∼1000 nm, the H pull-out force was increased by 282.3% compared with the unmodified AF, and the fatigue resistance was significantly improved and the fatigue loss was reduced from 52.39% to 14.93%. The smooth transition of modulus between aramid fibers and rubber and the appropriately thickness interfacial layer improved the mechanical properties of the composites. The microcrack extension was transferred from the surface of high modulus aramid fibers to the rubber side. In future research, this method can readily adjust the interfacial layer thickness and modulus according to different rubber types, which promotes the application of high-performance fibers in rubber. © 2024 The Authors
引用
收藏
页码:3395 / 3404
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