AEROGEL ADSORPTION PHASE CHANGE ENERGY STORAGE POWDER, PREPARATION METHOD THEREFOR, AND APPLICATION THEREOF

摘要

Aerogel adsorption phase change energy storage powder, comprising the following components in parts by weight: 100 parts of phase change powder and 5-50 parts of aerogel. In the present invention, the aerogel is used as an adsorption material, is loose and porous, and has a large specific surface area, and therefore has a very strong capability of adsorbing the phase change powder, and thus, the adsorption of a phase change material can be completed by only using small parts by weight of aerogel. A preparation method uses a vacuum adsorption process, and stirring is performed under a vacuum condition, so that the melted phase change powder easily and deeply permeates into the fluffy deep pores of the aerogel. After the phase change material enters the deep pores, a large amount of phase change materials are adsorbed by little aerogel, and thus, the density of the aerogel adsorption phase change energy storage powder is increased by 10-15%, the phase change enthalpy of the aerogel adsorption phase change energy storage powder is increased by 5-15%, and the performance is significantly improved. The use amount of the aerogel is reduced, and thus, the costs are also greatly reduced, and the aerogel adsorption phase change energy storage powder is widely used.