▎ 摘　　要

NOVELTY - A polyethylene glycol-grafted graphene oxide composite solid-solid phase change material comprises polyethylene glycol as phase change material and crosslinking agent, and has interconnected framework structure that is formed by electrostatic interaction between hydrogen bond and functional group and graphene layer structure. USE - Polyethylene glycol-grafted graphene oxide composite solid-solid phase change material used in phase change heat storage material. ADVANTAGE - The polyethylene glycol-grafted graphene oxide composite solid-solid phase change material has improved thermal conductivity. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for production of polyethylene glycol-grafted graphene oxide composite solid-solid phase change material.