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

A technology of phase change heat storage and coating, applied in the direction of heat exchange materials, epoxy resin coatings, chemical instruments and methods, etc., can solve problems such as roughness, no phase change coating preparation research, phase change heat storage cement board thickness, etc. , to achieve the effect of improving thermal conductivity, excellent temperature regulation performance, and reducing indoor temperature fluctuations

Inactive Publication Date: 2018-06-22
邹元月
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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 ther

Method used

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

Examples

Experimental program
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Effect test

Embodiment 1

[0040] A kind of phase change thermal storage paint, its preparation method comprises the following steps:

[0041] (1) 25g of lauryl alcohol, 1.5g of styrene maleic anhydride sodium salt and 50g of water were stirred at a high speed at 40°C, and the pH was adjusted to 3-4 with citric acid to obtain a core material emulsion;

[0042] (2) Add 11g of melamine, 21.5g of formaldehyde and 10g of graphene oxide aqueous dispersion into a round bottom flask, heat and stir until the liquid becomes clear, adjust the pH of the liquid to 8-9 with MA-95, and continue at 70°C React for 3h to obtain a solution containing the wall material prepolymer;

[0043] (3) Slowly add the solution containing the wall material prepolymer in step (2) dropwise to the core material emulsion obtained in step (1), and react for 3 hours; filter the product under reduced pressure, and wash it successively with absolute ethanol and water Several times, dry in a 50°C oven to obtain phase-change microcapsules; ...

Embodiment 2

[0051] A kind of phase change thermal storage paint, its preparation method comprises the following steps:

[0052] (1) 25g of lauryl alcohol, 1.5g of styrene maleic anhydride sodium salt and 50g of water were stirred at a high speed at 40°C, and the pH was adjusted to 3-4 with citric acid to obtain a core material emulsion;

[0053] (2) Add 11g of melamine, 21.5g of formaldehyde and 10g of graphene oxide aqueous dispersion into a round bottom flask, heat and stir until the liquid becomes clear, adjust the pH of the liquid to 8-9 with MA-95, and continue at 70°C React for 3h to obtain a solution containing the wall material prepolymer;

[0054] (3) Slowly add the solution containing the wall material prepolymer in step (2) dropwise to the core material emulsion obtained in step (1), and react for 3 hours; filter the product under reduced pressure, and wash it successively with absolute ethanol and water Several times, dry in a 50°C oven to obtain phase-change microcapsules; ...

Embodiment 3

[0062] A kind of phase change thermal storage paint, its preparation method comprises the following steps:

[0063] (1) 25g of lauryl alcohol, 1.5g of styrene maleic anhydride sodium salt and 50g of water were stirred at a high speed at 40°C, and the pH was adjusted to 3-4 with citric acid to obtain a core material emulsion;

[0064] (2) Add 11g of melamine, 21.5g of formaldehyde and 10g of graphene oxide aqueous dispersion into a round bottom flask, heat and stir until the liquid becomes clear, adjust the pH of the liquid to 8-9 with MA-95, and continue at 70°C React for 3h to obtain a solution containing the wall material prepolymer;

[0065] (3) The solution containing the wall material prepolymer in step (2) is slowly added dropwise to the core material emulsion obtained in step (1), and the reaction is continued for 3 hours; Wash several times and dry in an oven at 50°C to obtain phase change microcapsules;

[0066] (4) Use the phase-change microcapsules obtained in ste...

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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...

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D125/14C09D7/61C09D7/63C09D7/65C09K5/06
Inventor 邹元月
Owner 邹元月
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