▎ 摘 要
NOVELTY - Method for preparing a polymerized graphene hybrid modified polyamic acid resin, involves (i) adding graphene to a nitrogen solution and nitrogen-dimethylformamide solution, and ultrasonically dispersing to prepare 1-4 wt.% graphene solution, and adding 2-5 wt.% isopropanol pinacol borate to prepare graphene dispersion, (iii) adding diamine and dianhydride to the graphene dispersion prepared in step (i) in an equimolar ratio, and stirring for 4-8 hours to obtain the polymerized graphene hybrid modified polyamic acid resin solution having a solute concentration of 18 wt.%. USE - The method is useful for preparing polymerized graphene hybrid modified polyamic acid resin for preparing polyimide film products having high thermal conductivity. ADVANTAGE - The method enables preparation of polymerized graphene hybrid modified polyamic acid resin with highly increased thermal conductivity and mechanical properties of the material. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for the use of the polyamic acid resin for preparing a polyimide film products having high thermal conductivity.