▎ 摘　　要

The paraffin/expanded graphite/graphene aerogel composite phase change material was prepared by usingparaffin???PA???as the phase change heat storage material???expanded graphite???EG???as the main thermal conductivematerial and support material???and graphene aerogel???GA???as the thermal conductivity enhancement material andauxiliary support material.The effects of the amount of GA added on the phase transition temperature???latent heat ofphase transition???thermal conductivity and cycling stability of the composite material were investigated.The resultsshow that the phase change material with composition of80%PA-17%EG-3%GA has good thermal conductivity andexcellent cycling stability.Compared with80%PA-20%EG composite material???it exhibits almost the same phasetransition temperature???latent heat of phase transition and cycling stability???but increased thermal conductivity from4.089W/???mmiddotK???to5.336W/???mmiddotK??????showing good application prospects.