材料科学
环氧树脂
涂层
复合材料
石墨烯
模数
摩擦学
氧化物
复合数
耐久性
电泳沉积
分层(地质)
纳米复合材料
纳米技术
冶金
生物
古生物学
构造学
俯冲
作者
You He,Xiaoqiang Fan,Yin Huang,Changbao Liu,Zhuofeng Zhao,Minhao Zhu
出处
期刊:Carbon
[Elsevier]
日期:2024-01-01
卷期号:217: 118629-118629
被引量:3
标识
DOI:10.1016/j.carbon.2023.118629
摘要
A Polyethyleneimine functionalized graphene oxide (GO) hybrid epoxy resin composite coating was prepared by electrophoretic deposition technology to construct the parallel-aligned GO in the coating toward high-performance friction/wear resistance. Results from experiments and molecular dynamics clarify that the addition of parallel-aligned GO into epoxy coating can significantly reduce the wear rate up to 71%. Meanwhile, its Young's modulus, shear modulus and bulk modulus were strengthened by 70%, 36%, and 65%, respectively, with pure epoxy coating as a comparison. The improvement in composite coating's mechanical and tribological properties is attributed to the strong interaction between the functionalized-GO and the matrix, as well as the efficient barrier effect from the parallel arrangement of functionalized-GO. The parallel-aligned GO can effectively prevent the coating from cracking and flaking, improve mechanical qualities and produce the tribo-protective film, resulting in high load-carrying and wear resistance capabilities. Our work provides effective guidance for designing nanocomposites with long-term durability.
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