▎ 摘　　要

NOVELTY - Preparation of phase change gel for solar photothermal conversion, involves (1) dissolving the organic phase change material in an organic solvent, and then adding a porous support material to obtain a phase change solution after complete dissolution, (2) adding a surface-modified photothermal conversion material to the phase change solution, and physically dispersing the photothermal conversion material in the phase change solution, and (3) heating to remove the organic solvent in the phase change solution to obtain an organic phase change gel with photothermal conversion performance. The mass ratio of the organic phase change material and the porous support material is 80-87:13-20. The added amount of the light-to-heat conversion material accounts for 0.1-11% of the total amount of the organic phase change material and the porous support material. USE - Preparation of phase change gel (claimed) for solar photothermal conversion. ADVANTAGE - The addition of a functional phase change material ensures certain physical properties such as stress and strain and temperature tolerance.