Abstract—

For the primary assessment of the operability of a number of filled polymer composites based on polytetrafluoroethylene (PTFE) as a material of antifriction layers, Brinell hardness, stiffness under free compression up to 10% deformation, stiffness under tight compression up to 160 MPa, friction coefficients and resistance to reverse sliding according to the plane-by-plane scheme of polished austenitic stainless steel were studied at room temperature as a counterbody. Seven types of PTFE-based composites filled with coke, bronze, colloidal graphite, as well as modified carbon fiber with a fluoropolymer coating and various additives (composites of the Superfluvis family) were studied. According to the totality of indicators, the composites of the Superfluvis family are superior to materials filled with coke or bronze, and the material filled with colloidal graphite as the main filler did not pass the tests for resistance to reverse sliding. The performance of the Superfluvis composite based on PTFE PN90 in reverse sliding tests under the pressure of 65 MPa at a distance of 10 000 m has been confirmed.

中文翻译：

---

PTFE 复合材料作为球面支撑部件减摩层的性能评估

摘要——

用于初步评估多种基于聚四氟乙烯 (PTFE) 的填充聚合物复合材料作为减摩层材料的可操作性，布氏硬度、自由压缩高达 10% 变形下的刚度、高达 160 MPa 的紧密压缩下的刚度、摩擦力根据抛光奥氏体不锈钢的逐面方案，在室温下作为反体研究了系数和抗反向滑动能力。研究了七种填充焦炭、青铜、胶体石墨的 PTFE 基复合材料，以及带有含氟聚合物涂层和各种添加剂的改性碳纤维（Superfluvis 系列复合材料）。从总体指标来看，Superfluvis系列复合材料优于焦炭或青铜填充材料，以胶体石墨为主要填料的材料未通过抗反向滑动试验。基于PTFE PN90的Superfluvis复合材料在65 MPa压力、10 000 m距离的反向滑动试验中的性能已得到证实。