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用二维材料增强的棉织物/树脂层复合材料的tribological行为

Yonggang Guo¹, Chenyang Fang¹, Tingmei Wang²

¹School of Mechanical and Electrical Engineering, Henan University of Technology, Zhengzhou 450001, China.

|November 25, 2023

概括

石墨 (Gr) 增强了棉织物增强的树脂 (CPF) 复合材料的干燥摩擦,减少了78%的磨损. 二硫化物 (MoS2) 也改善了水滑下的磨损,显示了协同效应的潜力.

科学领域:

材料科学材料科学材料科学
部落学 (tribology) 是一个学科.
聚合物复合材料聚合物复合材料

背景情况:

树脂是广泛使用的聚合物,但它们的tribological特性往往需要加强要求高的应用.
像石墨碳化物 (g-C3N4),石墨 (Gr),二硫化物 (MoS2) 和六角化物 (h-BN) 这样的二维 (2D) 材料为材料改造提供了独特的特性.

研究的目的:

为了研究用四种不同的二维填充剂修改的棉织物增强树脂 (CPF) 复合材料的三元学性能.
在干燥摩擦和水滑条件下评估这些改性复合材料的有效性.
通过表面分析和分子动力学模拟,了解三元学行为的潜在机制.

主要方法:

制造含有g-C3N4,Gr,MoS2和h-BN的CPF复合材料.
在干燥摩擦和水滑条件下的tribological测试,以测量摩擦系数和磨损率.
使用扫描电子显微镜 (SEM) 和X射线光电谱 (XPS) 进行表面表征.
分子动力学 (MD) 模拟来分析对应物表面的吸附行为.

主要成果:

与未经修改的CPF相比,CPF/Gr复合材料的干燥摩擦性能优越,摩擦系数降低了24%,磨损率降低了78%.
在水滑下,Gr,g-C3N4和h-BN降低了磨损率,10%的MoS2实现了56%的磨损率降低.
SEM和XPS分析揭示了转移膜形成的差异,与观察到的部落学行为相关.
MD模拟突出了CPF/Gr和CPF/MoS2在对应物表面上的不同吸附能力.

结论:

石墨 (Gr) 显著提高了CPF复合材料的干 tribological 性能.
二硫化物 (MoS2) 证明了在水滑下减少磨损的有效性.
通过将MoS2和Gr作为辅充剂相结合,可以实现协同滑效应,以在不同的滑条件下提高性能.

关键词:

棉花面料织物棉花面料摩擦和磨损以及磨损的影响.分子动力学分子动力学烯酸树脂是一种烯酸树脂.两个维的材料是二维材料.

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