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Solar heat absorbing paint and manufacturing method thereof

A technology of solar energy absorption and production method, applied in the field of coatings, can solve problems such as high cost and complex solar collector technology, and achieve the effects of strong coating adhesion, high stability and high thermal conductivity

Inactive Publication Date: 2014-02-19
上海陆亿新能源有限公司
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  • Abstract
  • Description
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Problems solved by technology

At present, the solar thermal application market has become a large market of hundreds of billions of yuan, but the heat-absorbing coating process in the core product solar collector is complicated and costly, and the core technology is still monopolized by foreign countries

Method used

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  • Solar heat absorbing paint and manufacturing method thereof
  • Solar heat absorbing paint and manufacturing method thereof

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Embodiment Construction

[0029] The formula (weight unit is gram) of 10 embodiments has been listed in table 1, and its preparation method is all: at normal temperature, the solid powder of batching quantity is mixed with epoxy resin, dispersant, leveling agent, organic The liquid components in the solvent and other formulas are mixed, fully dispersed and stirred evenly; then filtered, sealed in a can.

[0030] Table 1

[0031]

[0032] The coating of the present invention is a special coating for absorbing solar energy. It is used alone and directly sprayed or brushed on the inner surface of the heat-absorbing vacuum glass tube or the surface of the heat-absorbing metal layer of the flat solar heat collector at normal temperature. Before spraying the coating, it needs Clean the glass or metal surface, make the metal surface reach the natural color of the metal, and stir the paint evenly, and then paint the paint with a thickness of 40-160μm or thicker according to the type of collector.

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Abstract

A solar heat absorbing paint is prepared by mixing a nano magnetic powder, a variety of nano metal powders, a ceramic powder, epoxy resin and a variety of additives. The paint provided by the invention is prepared by evenly mixing and stirring the components in the formula at room temperature. The production process is simple, convenient, economical and environment-friendly. The paint provided by the invention can be used individually; and a coating of the paint has high absorption rate, high thermal conductivity, low radiation, high temperature resistance, high stability, strong adhesion, compactness and stability. The paint is ideal for solar energy absorption, can be widely used as the heat absorbing coating for solar collector, and absolutely can substitute the existing expensive solar energy absorption coating.

Description

technical field [0001] The invention relates to a paint, in particular to a solar heat absorbing paint and a manufacturing method thereof. Background technique [0002] Under the pressure of the increasingly serious energy crisis and environmental crisis, the development and utilization of new energy including solar energy has become the main way and economic means to solve the crisis. At present, the solar thermal application market has become a large market worth hundreds of billions of yuan, but the heat-absorbing coating process in the core product solar collector is complicated and costly, and the core technology is still monopolized by foreign countries. The purpose of the invention is to develop a simple and practical high-performance solar absorbing coating, to break through the monopoly of foreign technologies and to achieve transcendence. Contents of the invention [0003] The object of the present invention is to provide a solar heat-absorbing coating with high...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D7/12C09D7/06C09D5/32C09D7/47
Inventor 宋逸
Owner 上海陆亿新能源有限公司
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