CONDUCTIVE SELF-LUBRICATING COMPOSITE PLATE FOR BEARING

摘要

A conductive self-lubricating film for a bearing and a preparation method thereof. The conductive self-lubricating film for a bearing is used in an electrophoretic process, and mainly consists of a fluoropolymer (10), carbon black (11), carbon nanotubes (12), carbon fibers (13), and a solid lubricant (14). A polymer is selected from one or more type of the fluoropolymer (10), and a weight ratio thereof is 70-80%. A weight ratio of the carbon black (11) is 4-5%, a weight ratio of the carbon nanotubes (12) is 1-2%, a weight ratio of the carbon fibers (13) is 15-20%, and a weight ratio of the solid lubricant (14) is 0-9%. The length of the carbon nanotubes (12) is 3 μm to 5 μm. A mix of the carbon black (11) and the carbon nanotubes (12) is used in the conductive self-lubricating film, thereby reducing overall material costs and facilitating promotion and use thereof. The ratios of the carbon black (11), the carbon nanotubes (12), and the carbon fibers (13) are configured to microscopically form a favorable conductive network in the conductive self-lubricating film, such that macroscopically, the conductive self-lubricating film has a resistance value less than 10³ ohm per square centimeter, and is applicable to an electrophoretic process.