Phase change heat storage material and preparation method thereof

Abstract

The invention discloses a phase change heat storage material, which consists of a main material barium hydroxide and an additive barium chloride, wherein the main material and the additive play a role in preventing overcooling and preventing phase separation. A preparation method of the material comprises the following steps: (1) heating and melting pure barium hydroxide; (2) adding the additive barium chloride, and fully mixing the mixture evenly into a fluid substance; and (3) filling the mixture into a container to perform packaging. The phase change heat storage material has the advantages of large phase change latent heat, stable heat release process, fewer additive types, simple preparation method and convenient production; besides, the phase change heat storage material is easy forpackaging after being melted into the state of an even fluid substance.

Description

Technical field:

[0001] The invention relates to a novel material and a preparation method thereof, in particular to a phase change thermal storage material and a preparation method thereof. Background technique:

[0002] Heat storage can solve the waste caused by the mismatch between heat energy supply and demand in terms of time and space. Heat storage technology has been widely used in air conditioning, heating and other fields. With the deepening of research, heat storage materials have gradually entered ecological buildings, etc. Emerging fields. Since the phase change heat storage material uses both the inherent heat capacity of the substance and the phase change heat of the state change to store heat energy, it has a large heat storage density. In recent years, research and application in this area have developed rapidly.

[0003] The current research on phase change heat storage materials is mainly divided into two directions: organic phase change heat storage mater...

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