▎ 摘　　要

NOVELTY - Preparing reinforced and toughened modified epoxy resin composite material comprises intercalating p-phenylenediamine between graphene layers through interaction, and preparing poly-p-phenylenediamine modified graphene by in-situ polymerization, mixing into epoxy resin, through the primary and secondary amino groups on the poly-p-phenylenediamine chain, reacting with epoxy group in epoxy resin, and obtaining a reinforced and toughened modified epoxy resin composite material. USE - The method is useful for preparing reinforced and toughened modified epoxy resin composite material. ADVANTAGE - The composite material: can be evenly dispersed in the solvent; improves the mechanical properties of epoxy resin with highly dispersed graphene; and is strengthened and toughened.