氢等离子体处理纳米金刚石对聚四氟乙烯基纳米复合涂层摩擦学性能的影响

IF 2.1 4区材料科学 Q3 MATERIALS SCIENCE, COMPOSITES

Composite Interfaces Pub Date : 2023-02-25 DOI:10.1080/09276440.2023.2182464

Yoo-Choon Park, E. Lee, Choong-hyun Lee, Tae-Gyun Kwon, D. Lim

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引用次数: 0

摘要

研究了氢等离子体对纳米金刚石(ND)表面碳原子复合和蚀刻的影响及其对聚四氟乙烯(PTFE)纳米复合涂层分散性和摩擦学性能的影响。采用FESEM、HRTEM、拉曼光谱、FT-IR光谱和XPS对经等离子体处理的表面改性ND样品进行了表征。结果表明，等离子体处理有利于ND表面的刻蚀和复合，改变了石墨非晶碳的结晶度。改性ND制备的ptfe基纳米复合涂层的摩擦学性能取决于表面sp - 3键合碳的含量和ND的结晶度。氢等离子体处理导致PTFE/ND纳米复合涂层的分散性能和摩擦学性能显著改善。图形抽象

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Effect of hydrogen plasma treatment of nanodiamond on the tribological properties of polytetrafluoroethylene-based nanocomposite coating

ABSTRACT Carbon atom recombination and etching of the surface of nanodiamond (ND) by hydrogen plasma and their effects on the dispersion and the tribological properties of a polytetrafluoroethylene (PTFE) nanocomposite coating were investigated. The surface-modified ND samples subjected to plasma treatment were characterized using FESEM, HRTEM, Raman spectroscopy, FT-IR spectroscopy and XPS. The results showed that the plasma treatment facilitates etching and recombination of the ND surface and modifies the crystallinity of the graphitic amorphous carbon. The tribological properties of the PTFE-based nanocomposite coatings prepared with the modified ND depended on the content of sp 3 -bonded carbon on the surface and the crystallinity of the ND. Hydrogen plasma treatment caused a significant improvement in the dispersion and tribological properties of the PTFE/ND nanocomposite coating due to surface modification of the ND. GRAPHICAL ABSTRACT

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来源期刊

Composite Interfaces 工程技术-材料科学：复合

CiteScore

5.00

自引率

3.80%

发文量

审稿时长

3 months

期刊介绍： Composite Interfaces publishes interdisciplinary scientific and engineering research articles on composite interfaces/interphases and their related phenomena. Presenting new concepts for the fundamental understanding of composite interface study, the journal balances interest in chemistry, physical properties, mechanical properties, molecular structures, characterization techniques and theories. Composite Interfaces covers a wide range of topics including - but not restricted to: -surface treatment of reinforcing fibers and fillers- effect of interface structure on mechanical properties, physical properties, curing and rheology- coupling agents- synthesis of matrices designed to promote adhesion- molecular and atomic characterization of interfaces- interfacial morphology- dynamic mechanical study of interphases- interfacial compatibilization- adsorption- tribology- composites with organic, inorganic and metallic materials- composites applied to aerospace, automotive, appliances, electronics, construction, marine, optical and biomedical fields