Phase change energy storage material filled with ardealite, phase change energy storage plate and preparation method thereof

Abstract

The invention discloses a phase-change energy storage material filled with ardealite, a phase-change energy storage plate and a preparation method thereof, and belongs to the technical field of building materials. The phase change energy storage material comprises the following components in parts by weight: 20-75 parts of ardealite, 5-38 parts of an inorganic phase change material, 2-25 parts ofexpanded graphite, 0-1 part of citric acid, 0-3 parts of polypropylene fibers, 0.1-3 parts of a water reducing agent and 20-85 parts of water. When the phase change temperature is reached, the phase state is changed, heat storage or heat release can be achieved under the condition that the temperature is basically kept unchanged, fluctuation of the indoor temperature is reduced, and the living comfort is improved. According to the invention, the components and the ratio of the phase change energy storage material are adjusted; the ardealite-filled phase change energy storage plate is preparedby adopting a filling molding mode, so that the permeability of a phase change material can be reduced, the utilization rate of phase change heat is improved, and durability of the phase change energystorage plate is prolonged.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a phase change energy storage material filled with phosphogypsum, a phase change energy storage board and a preparation method thereof. Background technique [0002] In the "Medium and Long-term Special Plan for Energy Conservation" approved by the State Council, building energy conservation has been listed as a key area of ​​energy conservation. However, the internal and external wall insulation technology can only play a drop in the bucket in terms of energy saving. Since the thermal insulation material generally has a low specific heat capacity, it can hardly store solar or thermal energy, so it cannot greatly reduce energy consumption. Composite building materials and phase change materials have higher heat capacity and thermal inertia than ordinary building insulation materials. When the microenvironment temperature of the phase change material is lower than the ...

AI Technical Summary

Problems solved by technology

However, this method increases the complexity of the construction process

[0006] Therefore, the application of phase change energy storage materials to building materials should not only be devoted to solving the common problems of easy leakage and low thermal conductivity of phase change materials, but also consider the durability and feasibility of the process.

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