Cuprous sulfide (Cu₂S) nanoparticles as functional fillers were in-situ synthesized in Polyamideimide (PAI) - Polytetrafluoroethylene (PTFE) bonded solid lubricating coatings. The results indicated that Cu₂S nanoparticles were homogeneously dispersed in lubricating coatings with small grain size. Agglomeration problem of nano-functional fillers in lubricating coatings during its fabrication process was well resolved. When incorporation mass percent of Cu₂S nanoparticles reached 5.0%, the micro-hardness of lubricating coatings elevated about 109%, wear rate decreased about 40% and wear life ascended about 3 times, respectively. Subsequently, the adaptability research of lubricating coatings under various applied loads and sliding frequencies indicated that the lubricating coatings exhibited the most excellent anti-wear ability under applied load of 10 N and sliding frequency of 7 Hz. Load-carrying capacity of the lubricating coatings was substantially promoted by appropriate incorporation of in-situ synthesized Cu₂S nanoparticles. In pace with enlarged sliding frequencies, wear degree of lubricating coatings adversely alleviated, but superhigh sliding frequency brought fatal abrasion to lubricating coatings.

在聚酰胺酰亚胺（PAI）-聚四氟乙烯（PTFE）粘结的固体润滑涂料中原位合成了作为功能性填料的硫化亚铜（Cu ₂ S）纳米粒子。结果表明，Cu ₂ S纳米颗粒均匀地分散在小粒径的润滑涂层中。纳米功能填料在润滑涂层的制造过程中的团聚问题得到了很好的解决。结合时的Cu _2的质量百分比S纳米粒子达到5.0％，润滑涂层的显微硬度分别提高了约109％，磨损率下降了约40％和磨损寿命提高了约3倍。随后，润滑涂层在各种施加载荷和滑动频率下的适应性研究表明，该润滑涂层在10 N施加载荷和7 Hz滑动频率下表现出最优异的抗磨性能。通过适当掺入原位合成的Cu ₂ S纳米颗粒，可以大大提高润滑涂层的承载能力。随着滑动频率的增加，润滑涂层的磨损程度不利地减轻，但是超高的滑动频率给润滑涂层带来致命的磨损。