Process for preparing organic phase-change material composite expanded perlite by emulsification method

Abstract

The present invention discloses a preparation process for organic phase change material composite expansion perlite materials in emulsification method, which comprises the following steps: the uniform and mixed emulsion is obtained by stirring and mixing the organic phase change materials and the emulsifying agents in the water, the temperature of which ranges from 20 to 100 Celsius system; the organic phase change material composite expansion perlite particles are obtained by adopting the decompression adsorption process to completely absorb and deliver the obtained emulsion into the expansion perlite by permeation. The present invention has the following advantages: organic phase change materials completely permeate into the internal pores of the expansion perlite particles and the larger adsorption force has an effect between the phase change materials and the pores of the expansion perlite after the phase change materials are emulsified, and the organic phase change materials are combined stably with the common building materials; a very strong adsorption force has an effect between the phase change materials and the pores of the expansion perlite after the phase change materials are emulsified, thus realizing high incorporation of the organic phase change materials and assuring that the phase change energy storing aggregates have high energy storing heat capacity; the preparation process is simple and is easy to be carried out and controlled, thus being beneficial to the industrialized popularization and application.

Description

technical field [0001] The invention relates to the field of building energy conservation, in particular to an emulsification preparation process of an organic phase change material composite expanded perlite material. Background technique [0002] The energy consumption per unit building area in my country is three times that of developed countries with similar climate conditions, and 95% of buildings are high-energy buildings, and building energy consumption accounts for about 30% of the total energy consumption of the whole society. With the rapid growth of my country's economic construction and real estate industry, it will bring a greater power burden to China, which is short of resources and increasingly polluted. Therefore, building energy conservation is an extremely important and urgent subject for our country. [0003] Thermal energy storage technology can alleviate the contradiction between the energy supply and demand of buildings in terms of time and intensity,...

AI Technical Summary

Problems solved by technology

These technologies may affect the mechanical properties of building materials, or affect the fire performance of products, and the practical prospects are worrying.