The self-lubricating composite is a composite material with a low coefficient of friction and a low wear rate.

The self-lubricating functional composite is based on high polymer or metal, and its low friction property is provided by a solid lubricant component having a low friction coefficient. The commonly used solid lubricant is a layered structural substance such as graphite or copper disulfide, such as poly. High polymers such as tetrafluoroethylene and polyethylene, soft metals such as silver and lead, and some high temperature resistant fluorides. Wear-resistant components such as quartz sand, glass fiber, carbon fiber, and bronze powder impart a low wear rate and a long working life to the self-lubricating functional composite. The plastic-bronze mesh-steel back three-layer composite is another self-lubricating functional composite. Existing DU type; modified polytetrafluoroethylene as plastic surface layer) and D} }1 (modified polyoxymethylene as plastic surface layer), La I is widely used in F} machinery industry Oil-free lubricating bearings. It is commonly used to make oil-free lubricated friction parts, and a wide range of application applications such as high vacuum, ultra-low temperature, strong radiation, corrosive medium and other harsh lubricating oils that are difficult to function, or need to prevent oil contamination products, environment And machinery that is difficult to compensate for grease.