Bearing lubricating material based on modified polytetrafluoroethylene and modified carbon fibers

• Main Authors: YAN FENGYUAN, LI SUTONG, LIU HAO, YU GUOJUN, LIU WENWU, WANG JIANZHANG, ZHANG GAOMING
• Format: Patent
• Language: Chinese; English
• Published: 17.11.2023
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS

The invention provides a bearing lubricating material based on modified polytetrafluoroethylene and modified carbon fibers, which is prepared by taking modified polytetrafluoroethylene resin as a polymer matrix and fluorosilane modified carbon fibers as a main reinforcing filler and combining a small amount of lubricating filler and functional filler as modified components through the processes of mechanical blending, pre-pressing, sinter molding and the like. Polytetrafluoroethylene resin is subjected to polymerization modification, so that the processability of the polytetrafluoroethylene resin is greatly improved on the basis of keeping the original physicochemical properties of polytetrafluoroethylene; the carbon fibers are subjected to activating treatment and fluorosilane grafting modification, so that the interface bonding of the carbon fibers and the polytetrafluoroethylene resin is improved; on the basis, the mechanical strength, the tribological property, the heat-conducting property and the dimensi