▎ 摘　　要

NOVELTY - Nanoparticle core material doped metal phase change microcapsule comprises metal particles as the core material, the core material is doped with nanoparticles and covered with a porous inorganic wall material layer, and there is a thermal expansion between the core material and the porous inorganic wall material layer, cavity, where, the thermal expansion cavity and the porous inorganic wall material layer are heat-treated through the organic hybrid layer and the inorganic layer coated outside the core material, and the organic matter in the organic hybrid layer decomposes into gas and escapes from the inorganic layer get, the nanoparticles doped in the organic hybrid layer are doped into the metal core material when the organic matter is decomposed to obtain the nanoparticle-doped core material. USE - The nanoparticle core material doped metal phase change microcapsule is useful in energy utilization, waste heat recovery, energy saving and emission reduction field. ADVANTAGE - The nanoparticle core material doped metal phase change microcapsule: solves the problem that the metal micro-capsule super-cooling degree causes the stored latent heat release delay, the storage is not matched with the release heat temperature, heat energy utilization efficiency is reduced, and providing a heat expansion space for the metal melt, greatly improving the heat cycle performance. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a method for preparing nanoparticle core material doped metal phase change microcapsule comprising (1) taking nano particles, by means of ultrasonic, uniformly dispersing it in the solvent to obtain the nano-particle suspension, taking metal particles to add in the nanoparticle suspension, adding easily decomposed organic matter, coating a layer of organic hybrid layer doped with nano particles on the surface of the metal particles by means of ultrasonic, magnetic stirring or mechanical stirring, obtaining the metal phase change micro-capsule coated by the organic hybrid layer doped with nano particles, or adding organic monomer and initiator into the nano-particle suspension added with metal particles, performing reaction under ultrasonic, magnetic stirring or mechanical stirring assistance, after finishing reaction, obtaining the metal phase change micro-capsule coated by the organic hybrid layer doped with nano particles, (3) adding solvent and surfactant with mass ratio of 30-125: 0.2-0.6, and obtaining the doped nano-particle organic hybrid layer coated metal phase change micro-capsule is added to the system, adding a certain catalyst or initiator, at a certain temperature, by ultrasonic, magnetic stirring or mechanical stirring way to react, after reacting for a certain time, cleaning, filtering, drying to obtain the nano-particle doped organic hybrid layer and inorganic layer coated metal phase change micro-capsule, and (3) obtaining the nano-particle doped organic hybrid layer and inorganic layer double-layer coated metal phase change micro-capsule through atmosphere furnace for heat treatment, the organic matter in the heat treatment organic hybrid layer is heated and decomposed into gas, escaping through the inorganic layer, decomposing organic matter, doping nano-particles doped in the organic matter into the metal core material, and forming a thermal expansion cavity and porous inorganic wall material layer in the metal phase change micro-capsule, and obtaining the nano-particle core doped metal phase change micro-capsule with thermal expansion cavity. DESCRIPTION OF DRAWING(S) - The drawing shows microscopic photograph of nano-particle core material doped metal phase change microcapsule.