Self-lubricant composite is a flourish scope of technology that merits academic and industry attention, as it is a specific part which essentially employed in acute operation conditions. In the present study, the mechanical properties of the self-lubricating composite of two-dimensional (2D) and three-dimensional (3D) braid were investigated. The composites contained Polytetrafluoroethylene (PTFE) fibers as a lubricant and glass, carbon, and Kevlar as a reinforcement, hierarchically incorporated into the structure. In order to study the composite behavior as well as to determine the modulus and hardness of the sample, an indentation test, which is very similar in loading to abrasion tests, was applied. A microband test was also conducted to assess the adhesion between the resin and the PTFE fiber. Shear punch tests were performed to evaluate the total shear strength and impact test to estimate energy absorption and impact strength. The results showed that PTFE/epoxy matrix has poor adhesion. Composites with higher PTFE volume fraction had good energy absorption and, at the same time, low shear strength. The higher modulus of carbon composites was concerned.

自润滑复合材料是一项值得学术和行业关注的蓬勃发展的技术领域，因为它是一个特定的部件，主要用于紧急操作条件。在本研究中，研究了二维 (2D) 和三维 (3D) 编织物的自润滑复合材料的机械性能。复合材料包含聚四氟乙烯 (PTFE) 纤维作为润滑剂，玻璃、碳和凯夫拉纤维作为增强材料，分层整合到结构中。为了研究复合材料的行为以及确定样品的模量和硬度，进行了压痕试验，该试验在载荷和磨损试验方面非常相似。还进行了微带测试以评估树脂和 PTFE 纤维之间的附着力。进行剪切冲头试验以评估总剪切强度和冲击试验以估计能量吸收和冲击强度。结果表明，聚四氟乙烯/环氧树脂基体的附着力较差。具有较高 PTFE 体积分数的复合材料具有良好的能量吸收性，同时具有较低的剪切强度。碳复合材料的较高模量受到关注。