Novel modified phase change energy storage material

The invention discloses a novel modified phase change energy storage material. The novel modified phase change energy storage material is prepared from, by mass, 40-60 parts of a phase change energy storage materials, 2-5 parts of a heat conduction enhancer, 3-8 parts of an expanded heat conduction material, 5-8 parts of a nucleating agent, 2-5 parts of a modifier, 2-5 parts of a mixture, 2-5 parts of a thickener, 5-8 parts of a carrier material, 5-10 parts of polystyrene, 1-4 parts of polymethacrylic acid and 1-15 parts of water. The stability and the water retention of the phase change material are improved; the addition of one or more of agar powder, magnesium chloride and dimethicone makes the phase change material melted, so settlement and layering of the phase change material are effectively prevented, thereby the stability and the water retention of the phase change material are improved, and the fusion and the stability of the energy storage material are enhanced; and the addition of the expanded heat