Radiative cooling is considered an innovative passive approach to address the overheating issue in electronic devices.However,its application is limited by the lower net cooling power.This paper proposes a composite material based on radiative cooling and phase change effect to achieve thermal buffering for heat-generating devices.Using melamine foam(MF)as the three-dimensional framework,polyethylene glycol(PEG)as the phase change material,and fluorinated polymer(PVDF-HFP)as the radiative cooling layer,a radiative cooling phase change material(RC-PCMs)with excellent leak-proof capability is prepared.The composite material not only possesses high solar reflectance(0.93)and high infrared emissivity(0.91)but also has a high enthalpy value(182 J/g).This work provides valuable references for the development of novel passive radiative cooling technologies.
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