Al2O3纤维增强环氧树脂/ WS2 - PEG复合涂层的电流体动力雾化增强耐磨性能

IF 6.1 1区 工程技术 Q1 ENGINEERING, MECHANICAL
Wear Pub Date : 2025-09-22 DOI:10.1016/j.wear.2025.206357
Junyan Wang, Jianxin Deng, Zhihui Zhang, Yichen Bao, Kexin Ma
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引用次数: 0

摘要

加入增强和润滑填料是提高环氧基涂层力学性能和摩擦学性能的有效途径。本研究采用电流体动力雾化(EHDA)方法,成功合成了两种具有良好耐磨性的纤维增强环氧/二硫化钨/聚乙二醇(WS2-PEG)复合涂层。一种是由原位合成环氧树脂(EP)、Al2O3纤维和WS2- peg纳米薄片(EP + Al + WS2)组成。另一种包括WS2- peg纳米薄片顶层和环氧树脂封装的Al2O3纤维底层(EP + Al/WS2)。系统地评估了涂层的微观结构、热性能、机械性能和摩擦学性能。结果表明,复合涂层的塑性指数和热变形温度均有提高。EP + Al/WS2在干摩擦条件下表现出优异的摩擦学性能,与原始环氧树脂相比,EP + Al/WS2的摩擦系数和磨损率分别降低了67.2%和67.4%。EP + Al + WS2涂层在水润滑条件下表现出良好的抗磨性能,磨损率比干摩擦条件下降低了一个数量级。因此,纤维增强复合涂层在抗磨涂层领域具有广阔的应用前景。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Al2O3 fiber reinforced epoxy / WS2 - PEG composite coatings for wear resistance enhancement by electrohydrodynamic atomization
Incorporating reinforcing and lubricating fillers is an efficient approach to improve the mechanical and tribological properties of epoxy-based coatings. In this study, two types of fiber reinforced epoxy/tungsten disulfide and polyethylene glycol (WS2-PEG) composite coatings with good wear resistance were successfully synthesized by electrohydrodynamic atomization (EHDA) method. One is constructed by the in-situ synthesized epoxy resin (EP), Al2O3 fibers and WS2-PEG nanoflakes hybrids (EP + Al + WS2). Another comprises a WS2-PEG nanoflakes top layer and an epoxy encapsulated Al2O3 fibers layer at the bottom (EP + Al/WS2). The coatings were systematically evaluated for their microstructure, thermal, mechanical, and tribological properties. Results showed that the plasticity index and heat distortion temperature of the composite coatings all improved. Furthermore, The EP + Al/WS2 exhibited superior good tribology property under dry friction condition, with a 67.2 % and 67.4 % reduction on friction coefficient and wear rate compared with pristine epoxy. EP + Al + WS2 coatings exhibited great anti-wear performance under water lubrication condition, showing an order of magnitude reduction of wear rate than in dry friction condition. Therefore, fiber reinforced composite coatings hold promising potential in anti-wear coatings field.
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来源期刊
Wear
Wear 工程技术-材料科学:综合
CiteScore
8.80
自引率
8.00%
发文量
280
审稿时长
47 days
期刊介绍: Wear journal is dedicated to the advancement of basic and applied knowledge concerning the nature of wear of materials. Broadly, topics of interest range from development of fundamental understanding of the mechanisms of wear to innovative solutions to practical engineering problems. Authors of experimental studies are expected to comment on the repeatability of the data, and whenever possible, conduct multiple measurements under similar testing conditions. Further, Wear embraces the highest standards of professional ethics, and the detection of matching content, either in written or graphical form, from other publications by the current authors or by others, may result in rejection.
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