Abstract

The paper presents the study results of the effect of carbon fibers with mechanically activated bentonite on the physical and mechanical properties, and tribological characteristics of polytetrafluoroethylene. It is shown that the introduction of combined fillers (carbon fibers with bentonite) in polytetrafluoroethylene leads to a significant improvement in the wear resistance of the material while maintaining a low friction coefficient. Structural studies of a worn surface by IR spectroscopy and scanning electron microscopy indicate: the localization of carbon fibers and activated bentonite particles on friction surfaces with the formation of wear-resistant secondary structures; the progress of tribochemical reactions with the oxidation of fragments of the PTFE tribodecay; and the subsequent structuring of surface layers.

中文翻译：

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碳纤维和膨润土对PTFE摩擦学性能影响的研究

摘要

本文介绍了碳纤维与机械活化的膨润土对聚四氟乙烯的物理机械性能和摩擦学特性的影响的研究结果。结果表明，在聚四氟乙烯中引入混合填料（碳纤维和膨润土）可以显着改善材料的耐磨性，同时保持较低的摩擦系数。通过红外光谱和扫描电子显微镜对磨损表面的结构研究表明：碳纤维和活性膨润土颗粒在摩擦表面上的定位，形成了耐磨的二级结构；摩擦学反应与PTFE摩擦分解的碎片氧化的进展; 以及随后的表面层结构化。