▎ 摘　　要

NOVELTY - Preparing phase change material with energy storage and composite network structure, comprises crushing the pre-pore-forming agent into smaller particles by a crusher, taking the pore-forming agent, agglomerant and functional filler, mixing the three substrates uniformly to obtain mixed powder, placing the mixed powder into 80 ℃ of vacuum drying box for vacuum drying, adding the dried mixed powder to the heat conducting mold, carrying out constant pressure on the flat vulcanizing machine, and pressing and forming, hot pressing and forming, cold pressing, demolding the cooled sample, obtaining precursor of porous carrier containing pore-forming agent, performing physical adsorption to the porous carrier, and the two-dimensional material with a certain concentration by vacuumizing, freezing and drying, absorbing phase change material above the phase change temperature point of the phase change material by porous carrier with double network structure, and obtaining the product. USE - The method is useful for preparing phase change material with energy storage and composite network structure, which is useful in energy recovery and utilization, and in cold and high-pressure environments. ADVANTAGE - The method: is simple, no toxic and harmful substances are involved in the preparation process, and it is green and safe; makes the material have good thermal conductivity, high energy density, good energy storage effect, and good structural stability; and can effectively, safely and quickly realize energy storage and energy conversion. DETAILED DESCRIPTION - Preparing phase change material with energy storage and composite network structure, comprises (1) crushing the pre-pore-forming agent into smaller particles by a crusher, selecting proper grain diameter of the screen, the pore-forming agent after crushing through the screen for screening, obtaining the target particle size of pore-forming agent, (2) taking the pore-forming agent, agglomerant and functional filler, mixing the three substrates uniformly to obtain mixed powder by physical mixing technology, (3) placing the mixed powder into 80 ℃ of vacuum drying box for vacuum drying, the purpose is to remove the water in the mixed powder, (4) adding the dried mixed powder to the heat conducting mold, carrying out constant pressure on the flat vulcanizing machine, and pressing and forming at fixed temperature and time, the temperature of the flat vulcanizing machine is conducted to the mixed powder through the heat conducting mold, when the temperature of the mixed powder reaches the melting point of the base adhesive, the base is agglomerant and the pressing temperature of the bonding action is generated near the melting point of the base adhesive, (5) hot pressing and forming, cold pressing, taking out the whole set of mold from the flat vulcanizing machine and pressing the mold at room temperature, naturally cooling the mold and the formed sample to the room temperature, (6) demolding the cooled sample, obtaining precursor of porous carrier containing pore-forming agent, (7) obtaining the precursor by deionized water high temperature water washing, the purpose is to remove the pore-forming agent in the precursor under the condition of stirring and high temperature, molecular thermal motion is exacerbated, which is good for the porogen to remove the precursor better, after a certain degree of water washing, the pore-forming agent in the precursor is completely removed to obtain porous carrier, (8) selecting two-dimensional material, preparing the two-dimensional material into two dimensional material dispersion liquid, (9) performing physical adsorption to the porous carrier, and the two-dimensional material with a certain concentration by vacuumizing, freezing and drying the porous carrier loaded with the two-dimensional material to obtain the porous carrier of the composite doublenetwork structure, and (10) absorbing phase change material above the phase change temperature point of the phase change material by porous carrier with double network structure, using filter paper with a certain capillary force to leak the sample, so that the un-absorbed complete phase change material is leaked on the filter paper, after the leakage is finished, obtaining the composite network structure phase change material.