▎ 摘　　要

NOVELTY - Thermally conductive adhesive film comprises graphene oxide, dodecylamine, epoxy resin, cyanate ester resin and polyetherimide. USE - Thermally conductive adhesive film for bonding optical load structures. ADVANTAGE - The thermally conductive adhesive film has enhanced thermal conductivity, and has low condensable volatile property and good adhesive performance. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing a thermally conductive adhesive film, which involves: (A) dispersing graphene oxide ultrasonically in distilled water, adding dodecylamine ethanol solution to obtain mixed solution A, stir at room temperature for 24h; (B) adding hydrazine monohydrate, heat under reflux, and then repeatedly washing at least 3 times with a mixture of deionized water and absolute ethanol, and dry in vacuum to obtain dodecylamine modified graphene powder; (C) dissolving epoxy resin in a certain volume of acetone, then add a certain mass of dodecylamine modified graphene powder, heat and stir to react; (D) rinsing and filtering with excess dichloromethane to obtain DA-GO uniformly coated with epoxy resin; (E) mixing cyanate ester resin and the polyetherimide, heat and melt, and mechanically stir until uniform to obtain the main body resin. Cool down to 110-130 degrees C; (F) adding epoxy resin coated DA-GO and the transition metal salt accelerator respectively, and then use a rubber mixer to mechanically mix to a homogeneous phase to obtain a rubber compound; and (G) pressing rubber material into a film by a film pressing machine under heating conditions to obtain a thermally conductive adhesive film.