Phase-change energy-storage composite coating material and method for making same

A technology of phase change energy storage and composite coatings, which is applied in chemical instruments and methods, coatings, heat exchange materials, etc., and can solve problems that have not yet been discovered

Inactive Publication Date: 2008-03-12
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] No products combining phase change materials and coatings have been found so far

Method used

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Effect test

Embodiment 1

[0014] The porous graphite-based phase change energy storage composite material powder is composed of butyl stearate and porous graphite powder with a mass ratio of 5:1, that is, the phase change material accounts for 83% of the total mass of the composite material. The pure acrylic emulsion adopts the anionic pure acrylic emulsion of Qingdao Xingguo Paint Chemical Co., Ltd., and its solid content is 40%. The styrene-acrylic emulsion is Acronal S 716 styrene-acrylic emulsion from BASF, Germany, with a solid content of 50%. According to the above-mentioned preparation method, prepare phase-change energy-storage composite paint, the content of porous graphite-based phase-change energy-storage composite material micropowder in functional layer paint is 9wt%, the formula of overlay paint is: pure acrylic emulsion: styrene-acrylic emulsion: water= 0.4:0.1:0.5. The proportions among the ingredients described in the present invention are all weight ratios. In the preparation proces...

Embodiment 2

[0016] The porous graphite-based phase change energy storage composite material powder is composed of butyl stearate and porous graphite powder with a mass ratio of 5:1, that is, the phase change material accounts for 83% of the total mass of the composite material. The pure acrylic emulsion adopts the anionic pure acrylic emulsion of Qingdao Xingguo Paint Chemical Co., Ltd., and its solid content is 40%. The styrene-acrylic emulsion is Acronal S 716 styrene-acrylic emulsion from BASF, Germany, with a solid content of 50%. According to the above-mentioned preparation method, prepare phase-change energy-storage composite paint, the content of porous graphite-based phase-change energy-storage composite material micropowder in functional layer paint is 17wt%, and the formula of covering layer paint is: pure acrylic emulsion: styrene-acrylic emulsion: water= 0.4:0.1:0.5. In the preparation process of the functional coating and the covering coating, a small-scale high-speed disper...

Embodiment 3

[0018] The porous graphite-based phase change energy storage composite material powder is composed of butyl stearate and porous graphite powder with a mass ratio of 5:1, that is, the phase change material accounts for 83% of the total mass of the composite material. The pure acrylic emulsion adopts the anionic pure acrylic emulsion of Qingdao Xingguo Paint Chemical Co., Ltd., and its solid content is 40%. The styrene-acrylic emulsion is Acronal S 716 styrene-acrylic emulsion from BASF, Germany, with a solid content of 50%. According to the above-mentioned preparation method, prepare phase-change energy-storage composite coating, the content of porous graphite-based phase-change energy-storage composite material micropowder in functional layer coating is 23wt%, and the formula of overlay coating is: pure acrylic emulsion: styrene-acrylic emulsion: water= 0.4:0.1:0.5. In the preparation process of functional coatings and covering coatings, a small high-speed disperser made in t...

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Abstract

A phase-transformed energy-accumulating compound coating comprises an organic macromolecule film-forming material and a phase-transformed energy-accumulating micro powder that is of porous graphite based phase-transformed energy-accumulating composite micro powder. The porous graphite based phase-transformed energy-accumulating composite micro powder comprises porous graphite micro powder and organic phase-transformed material. Wherein, the porous graphite micro powder is prepared by intercalating, expanding, compressing and crushing, etc. natural scaly graphite; and the organic phase-transformed material comprises a crystallizing direct-chain grease acid, paraffin hydrocarbon, ester and the combination of one or more from them. The compound coating is of good steadiness, outstanding heat-accumulating effect, and is easy to brush.

Description

technical field [0001] The invention relates to the field of energy storage composite materials, in particular to a phase change energy storage composite coating and a preparation method thereof. Background technique [0002] The use of energy storage materials to improve the energy efficiency of buildings is a hot spot in the field of energy and construction. Studies have shown that energy storage materials can not only effectively reduce energy consumption and reduce the scale of air-conditioning systems, but also narrow the fluctuation range of indoor temperature and improve indoor thermal comfort. Energy storage materials can be divided into sensible heat storage materials and latent heat storage materials. In addition to high energy storage density, phase change latent heat energy storage has a stable energy storage temperature and is convenient for energy use. Materials used for phase-changing energy storage are called phase-changing materials (Phase-Changing Materia...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D5/00C09D7/12C09D125/14C09D133/00C09K5/02B05D1/36
Inventor 张东
Owner TONGJI UNIV
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