The invention discloses a phase-change energy-storage heat-preservation
composite material as well as a preparation method and application thereof, and particularly relates to the technical field of heat-preservation composite materials. The phase-change energy-storage heat-preservation
composite material comprises the following raw materials in percentage by weight of dry materials: 30%-60% of
fly ash, 10%-30% of
cement, 5%-20% of
lime, 10%-80% of
sodium sulfate decahydrate and 0.05%-0.2% of aluminum
powder. The method for preparing the phase-change energy-storage heat-preservation
composite material comprises the following steps: S1, uniformly dry-mixing the
fly ash, the
cement, the
lime and the
sodium sulfate decahydrate; s2, adding water into the dry mixture, and stirring to form
slurry; s3, aluminum
powder is added into the
slurry, and the mixture is poured into a mold after being stirred; s4, standing and aerating to form a porous blank body; s5, the blank body is subjected to maintenance; and S6, cooling and post-
processing to obtain a finished product. According to the phase-change energy-storage thermal-insulation composite material and the preparation method thereof provided by the invention, the
fly ash is used as a main
raw material, the process is simple, and the phase-change energy-storage thermal-insulation composite material has the advantages of excellent phase-change
energy storage and temperature regulation functions.