Phase change heat storage coating, and preparation method and application thereof

Abstract

The invention belongs to the field of new energy materials, and particularly relates to a phase change heat storage coating, and a preparation method and application thereof. The preparation method ofthe phase change heat storage coating comprises the following steps: (1) taking graphene oxide-modified melamine resin as a wall material, taking dodecanol as a core material, taking styrene maleic anhydride sodium salt as an emulsifying agent, and preparing phase change micro-capsules through an in-situ polymerization method; (2) taking water-based emulsion as a film forming matter, taking the phase change micro-capsules as filler, adding a suitable amount of water, a dispersing agent, a defoaming agent, a thickening agent and a coalescing agent in sequence, mixing uniformly, and finally, adding the thickening agent to adjust viscosity to prepare the phase change heat storage coating. The phase change heat storage coating prepared by the preparation method is used for an inner wall of abuilding, can show excellent temperature regulating performance, is low in cost, easy to prepare, can effectively improve the thermal comfort of the building and reduce the energy consumption of the building.

Description

technical field [0001] The invention belongs to the field of new energy materials, and in particular relates to a phase change heat storage coating and a preparation method and application thereof. Background technique [0002] Building energy consumption is an important part of the world's total energy consumption, accounting for about 11-25%. Building energy consumption has accounted for about 1 / 3 of my country's total energy consumption, most of which are used for heating and air conditioning. Moreover, with the growth of population, the high energy consumption of buildings will also show an increasing trend, which will bring greater pressure on energy supply. Therefore, it is imminent to develop new energy sources and use appropriate methods to reduce energy waste. The mixed use of phase change materials and building materials can be made into phase change energy storage insulation materials, which store energy in the form of phase change latent heat, solve the problem...

AI Technical Summary

Problems solved by technology

[0007] A master's thesis (Wang Jianchuan. Preparation and performance research of graphene oxide / melamine resin phase change heat storage microcapsules [D]. Guangzhou: South China University of Technology, 2015.) disclosed a graphene oxide / melamine Resin phase-change thermal storage microcapsules, and tried to make it into a phase-change thermal storage cement board, but the phase-change thermal storage cement board is thick and rough, and there is no requirement for the shape of the microcapsules added to it; and the phase-change coating It is more delicate, and the phase change microcapsules are still required to be uniform as a whole after being added to it, which is related to the particle size, microscopic morphology, and compatibility with the coating of the microcapsules.

However, there is no further study on the preparation of phase change coatings in the above mentioned papers

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