▎ 摘　　要

NOVELTY - Preparing engineering plastic comprises diluting a graphene oxide and then polishing, processing and dispersing in an organic solvent to obtain graphene oxide dispersion liquid and then heating at 60 degrees C, adding silane coupling agent and then reacting by modified reaction to remove the organic solvent and then washing to obtain the organic modified graphene oxide modified by reduction process. USE - The method is useful for preparing engineering plastic (claimed). ADVANTAGE - The method simply and economically prepares the engineering plastic with good stability. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for A composite plastic comprising a plastic and the graphene.