Inorganic phase-change energy storing particles, floor heating mortar and preparation method thereof

Abstract

The invention provides inorganic phase-change energy storing particles, floor heating mortar and a preparation method thereof. The inorganic phase-change energy storing particles comprise the following components in percentage by mass: 20-50% of inorganic phase-change material, 10-25% of water, 0.1-1.5% of phosphorylated starch gum, 0.1-1.5% of water-absorbent resin, 10-35% of gypsum, and 15-35% of cement. The inorganic phase-change energy storing particles are prepared by the steps of preparing phosphorylated starch gum, preparing materials, mixing, pelletizing, coating, and covering with films. The floor heating mortar comprises 15-35% of cement, 10-25% of sand, 20-50% of inorganic phase-change energy storing particles, and 20-30% of water. The floor heating mortar is prepared by preparing materials, and mixing. According to the inorganic phase-change energy storing particles, the floor heating mortar and the preparation method thereof, the raw materials are wide in source; the chemical stability is high; the phase change temperature is low; leakage is avoided; the energy storing particles are good in energy storing effect, and high in stability; the floor heating mortar is highin strength, and the indoor temperature can be effectively conditioned, and the energy saving effect is good; and various buildings such as a house, a school and a hospital widely apply.

Description

technical field [0001] The invention belongs to phase change energy storage particles, floor heating mortar and preparation thereof, and relates to inorganic phase change energy storage particles, floor heating mortar and a preparation method thereof. The phase transition temperature of the energy storage particles of the invention is suitable for floor heating mortar, with good energy storage performance and no leakage after multiple cycles. The obtained floor heating mortar has high strength and good construction performance, and can be widely used in various buildings such as residences, schools, hospitals, etc. . Background technique [0002] With the development of industrial economy, the problems of energy crisis and environmental degradation have been aggravated, and more and more attention has been paid to improving energy efficiency. Thermal energy storage technology is very important for improving energy efficiency. [0003] Among many energy storage technologies,...

AI Technical Summary

Problems solved by technology

These types of materials have the advantages of suitable phase change temperature, high latent heat of phase change, non-combustibility, and low price. However, due to the phase change during the phase change process, they become liquid phases, phase separation occurs, and leakage occurs. It causes changes in the properties of building materials, precipitates white hairy crystalline salts, and damages the wall surface. Therefore, in order to prevent leakage, it needs to be coated to solve the technical problem of phase separation. However, no coated inorganic energy storage has been seen so far. Particles reported in the literature

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