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Thermochromic heat insulation coating and preparation method thereof

A heat-insulating coating and temperature-sensitive discoloration technology, which is applied in heat-sensitive coatings, reflective/signal coatings, radiation-absorbing coatings, etc., to achieve good economic benefits, good energy-saving effects, decorative effects, and broad application prospects

Active Publication Date: 2013-07-24
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Unfortunately, the patent does not compare the solar reflectance above / below the phase transition temperature, and the color of the paint does not change with the ambient temperature

Method used

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  • Thermochromic heat insulation coating and preparation method thereof
  • Thermochromic heat insulation coating and preparation method thereof
  • Thermochromic heat insulation coating and preparation method thereof

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Embodiment Construction

[0065] The present invention will be further described below in conjunction with specific examples. Percentages in the following comparative examples and examples are percentages by weight.

[0066] Preparation of temperature-sensitive color-changing heat-insulating coating

[0067] Pulping: The raw materials listed in Table 1 "Pulping Part" are ground by a high-speed disperser at a speed of 800rmp for 30 minutes to obtain a pulping part, which is sealed and stored after cooling.

[0068] Paint letdown: The raw materials listed in Table 1 "paint letdown part" were stirred by a stirring paddle at a low speed of 500rmp for 20 minutes to obtain the paint letdown part, which was sealed and stored at room temperature.

[0069] Mix the pulping part and the paint mixing part to obtain a temperature-sensitive color-changing heat-insulating coating.

[0070] Table 1 Composition of temperature-sensitive color-changing heat-insulating coating

[0071]

[0072]

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Abstract

The invention discloses a thermochromic heat insulation coating prepared from the following components in percentage by weight: 32-52% of pigment and filler, 2-10% of pulping solvent, 1-12% of pulping auxiliaries, 30-50% of film forming emulsion, 1-8% of reversible thermochromic material, 1-11.5% of paint mixing auxiliaries and 0-10% of paint mixing solvent. The thermochromic heat insulation coating can be used for achieving the aims of thermochromism, high temperature reflective heat insulation and low temperature heat absorption, and has favorable energy saving and decoration effects. The invention also discloses a preparation method of the thermochromic heat insulation coating. The preparation method comprises the following steps of: grinding the pigment and filler, the pulping solvent and the pulping auxiliaries to obtain a pulping part; stirring the film forming emulsion, the reversible thermochromic material, the paint mixing auxiliaries and the paint mixing solvent to obtain a paint mixing part; and mixing the pulping part and the paint mixing part to prepare the thermochromic heat insulation coating. The method is simple in preparation, easy for realizing large-scale industrial production and better in economic benefit.

Description

technical field [0001] The invention belongs to the technical field of architectural coatings, in particular to a temperature-sensitive color-changing heat-insulating coating and a preparation method thereof. Background technique [0002] Reflective heat insulation coating has good heat insulation effect, can reflect about 80% of solar radiation heat, and the construction of heat insulation coating is simple, only simple spraying is required; the cost is low, only 1 / 2 of inorganic heat insulation materials. Therefore, using thermal insulation coatings to reduce building energy consumption is a very feasible means of energy conservation and emission reduction, especially for the regions south of the Yangtze River in my country. [0003] The development of thermal insulation coatings is very fast. At present, environmental protection water-based thermal insulation coatings are widely used, such as water-based reflective thermal insulation coatings (CN 1986664 A); and water-bas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/00C09D125/14C09D123/16C09D133/04C09D127/12C09D175/04C09D5/26C09D5/32C09D5/33
Inventor 徐意杨辉樊先平彭晓光陈旭
Owner ZHEJIANG UNIV
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