▎ 摘　　要

NOVELTY - Preparing porous polymer-graphene-based composite shaped phase change material comprises (1) adding the polymer material into water and stirring to prepare homogeneous polymer aqueous solution with certain mass percentage concentration, (2) taking the graphene oxide aqueous dispersion, mixing the polymer aqueous solution prepared by step (1) with it, and stirring to obtain black hydrogel, and (3) adding phase-change material polyethylene glycol to the black hydrogel prepared in the step (2), continuously stirring, placing obtained material into oven and drying to prepare porous polymer-graphene-based composite shaped phase change material. USE - The material is useful as phase change materials for thermal energy conversion and storage or temperature management (claimed). ADVANTAGE - The material: is black blocky substance; and has high loading capacity, excellent heat storage and shaping capabilities. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for porous polymer-graphene-based composite shaped phase change material prepared by the preparation method.