▎ 摘　　要

NOVELTY - The method involves providing polyimide glue and substrate. The polyimide glue solution is coated on the substrate, and after curing, a polyimide film is obtained. The polyimide film is processed by laser direct writing to obtain a nanocrystalline graphene film with low friction and wear resistance. USE - Method for preparing a low-friction wear-resistant nano-crystal graphene film. ADVANTAGE - The method has simple technique, convenient operation, low cost, without special environment and gas condition, capable of quickly and efficiently preparing nano-crystal graphene film with low friction and wear-resistant performance, and has long abrasion service life under 20N high load, and wide application prospect in the friction field. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a nano-crystal graphene film with low friction and abrasion resistance. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of a method for preparing a low-friction wear-resistant nano-crystal graphene film.(Drawing includes non-English language text)