High-temperature phase-changing composite heat storage ceramic matrix material and preparation method thereof

Abstract

The invention belongs to the technical field of heat storage materials and particularly discloses a high-temperature phase-changing composite heat storage ceramic matrix material and a preparation method thereof. The material is prepared from raw materials in parts by weight as follows: 10-15 parts of a ceramic matrix, 20-30 parts of lithium carbonate, 20-30 parts of potassium carbonate, 30-40 parts of sodium carbonate, 1-2 parts of high-thermal-conductivity carbon fiber and 1-2 parts of doped graphite. The prepared high-temperature phase-changing composite heat storage ceramic matrix materialhas the advantages of large phase change latent heat, high high-temperature stability, low toxicity, small corrosion and the like and can be used as a phase-changing heat storage material, and the energy conversion efficiency is improved; the thermal conduction performance is higher, and the heat absorption and release speed is higher; the appearance of the material cannot be changed during phasechanging, and leakage can be effectively prevented.

Description

technical field

[0001] The invention belongs to the technical field of heat storage materials, and in particular relates to a high-temperature phase-change composite heat storage ceramic base material and a preparation method thereof. Background technique

[0002] Energy saving and environmental protection are an important topic in the field of energy utilization. Using phase change latent heat of phase change heat storage materials to store energy is a new type of energy saving technology. During the phase change process, the heat storage material absorbs the heat of the surrounding environment, and releases heat to the surrounding environment when the temperature of the surrounding environment decreases, so as to achieve the purpose of controlling the temperature of the surrounding environment and saving energy. It has broad application prospects in solar energy utilization, heat energy recovery, air conditioning and refrigeration, building energy saving, aerospace and oth...