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Electro-thermal coating

A technology of electrothermal coatings and pigments and fillers, which is applied in the direction of conductive coatings, epoxy resin coatings, coatings, etc., can solve the problems of low heating efficiency, unfavorable practical application, and poor coating adhesion, so as to improve electrical conductivity and good Heat generation effect, cost reduction effect

Inactive Publication Date: 2013-05-15
中国人民解放军63983部队 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Several patents for electrothermal coatings have been disclosed on the market (publication numbers CN1068582 and CN1112592). They mainly use carbon powder and graphite as fillers. The problem is that the resistance of these electrothermal coatings is above tens of ohms. If the filler content is used to reduce the resistance, the adhesion of the coating will become poor, and the heating efficiency will be relatively low in actual use, requiring a higher voltage (higher than the 36 volt safe voltage), which is not conducive to practical application

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0008] The present invention includes the following materials in parts by weight: 40 parts of film-forming substances, 22.5 parts of pigments and fillers, 1 part of additives, and 25 parts of solvents. Coatings in the range 45 μm.

[0009] The film-forming material is acrylic resin, epoxy resin or polyurethane resin; pigments and fillers include 5 parts of Ni powder and 20 parts of silver-coated copper powder, which contain 20% silver by weight; additives include adhesion promoter Silok629, the content Accounting for 0.75% of the film-forming substance, and dispersant Efka4010, the content accounts for 0.75% of the pigment; the diluent corresponding to the acrylic resin includes the following volume ratio materials: butyl acetate 20: xylene 60: cyclohexanone 20; epoxy resin corresponding The diluent includes materials in the following volume ratio: butyl acetate 40: methyl ethyl ketone 40: cyclohexanone 20; the diluent corresponding to the polyurethane resin includes materials...

Embodiment 2

[0011] The present invention includes the following materials in parts by weight: 60 parts of film-forming substances, 30 parts of pigments and fillers, 2 parts of additives, and 30 parts of solvents. Coatings in the range 30 μm.

[0012] The film-forming material is acrylic resin, epoxy resin or polyurethane resin; pigments and fillers include 15 parts of Ni powder, 10 parts of silver-coated copper powder, which contains 30% silver by weight; additives include adhesion promoter Silok629, the content Accounting for 1% of the film-forming substance, and dispersant Efka4010, the content accounts for 0.5% of the pigment; the diluent corresponding to the acrylic resin includes the following volume ratio materials: butyl acetate 20: xylene 60: cyclohexanone 20; epoxy resin The corresponding diluent includes materials in the following volume ratio: butyl acetate 40: methyl ethyl ketone 40: cyclohexanone 20; the corresponding diluent of polyurethane resin includes materials in the fo...

Embodiment 3

[0014] The present invention includes the following materials in parts by weight: 50 parts of film-forming substances, 15 parts of pigments and fillers, 1.5 parts of additives, and 20 parts of solvents. Coatings in the range 60 μm.

[0015] The film-forming material is acrylic resin, epoxy resin or polyurethane resin; pigments and fillers include 10 parts of Ni powder and 15 parts of silver-coated copper powder, which contain 10% silver by weight; additives include adhesion promoter Silok629, the content Accounting for 0.5% of the film-forming substance, and dispersant Efka4010, the content accounts for 1% of the pigment; the diluent corresponding to the acrylic resin includes the following volume ratio materials: butyl acetate 20: xylene 60: cyclohexanone 20; epoxy resin corresponding The diluent includes materials in the following volume ratio: butyl acetate 40: butanone 40: cyclohexanone 20; the diluent corresponding to the polyurethane resin includes materials in the follo...

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PUM

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Abstract

The invention provides an electro-thermal coating, and relates to heating coating which can be used inside and outside a building. The coating is coated on an interior wall, an office desk and an outdoor sentry place, and can realize heating by utilizing a safety voltage; and different heating requirements can be met by means of resistivity control, and the performance that the heating temperature is 5-20 DEG C higher than ambient temperature can be reached. Therefore, the invention further provides a processing method of the electro-thermal coating. The adopted technical scheme is as follows: the electro-thermal coating comprises the following materials in parts by weight: 40-60 parts of film-forming substance, 15-30 parts of pigment and filler, 1-2 parts of adjuvant and 20-30 parts of solvent; and the substances are proportionally placed in a ball mill, and then fully mixed and ground into the electro-thermal coating with the fineness ranging from 30 to 50 mu m.

Description

technical field [0001] The invention relates to a coating that can be used for indoor and outdoor heating of buildings, and can be made into electric heating tables, electric water heaters and industrial medium-low temperature baking electric furnaces, specifically electric heating coatings. Background technique [0002] Several patents for electrothermal coatings have been disclosed on the market (publication numbers CN1068582 and CN1112592). They mainly use carbon powder and graphite as fillers. The problem is that the resistance of these electrothermal coatings is above tens of ohms. If the filler content is used to reduce the resistance, the adhesion of the coating will be deteriorated, the heating efficiency will be relatively low in actual use, and a higher voltage (higher than the 36 volt safe voltage) will be required, which is not conducive to practical application. Contents of the invention [0003] In view of the above problems, the present invention provides an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D133/00C09D163/00C09D175/04C09D5/24
Inventor 杨辉谢卫张拴勤刘胜超王柏森
Owner 中国人民解放军63983部队