A special powder coating for radiator

A technology for powder coatings and radiators, which is applied in the field of functional powder coatings and powder coatings for heating radiators. It can solve the problem of low blackness coefficient of aluminum-silver paste coatings, no patent publications, and effects on radiator radiation heat dissipation, etc. problems, to achieve excellent appearance decoration, to prevent the occurrence of physical incidents that endanger employees, and to improve quality

Inactive Publication Date: 2015-09-16
TIANJIN XIANGSHENG NEW MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In my country, there was an experiment conducted by Harbin Institute of Construction and Engineering, and then there was a special study by Tsinghua University. The results showed that: for column type, airfoil type, plate type and flat tube type radiators, the surface blackness value of traditional silver powder paint is very low, which will directly Affects the radiant heat dissipation of the radiator
The blackness coefficient of aluminum-silver paste coating is very low, which seriously hinders heat dissipation, which is uneconomical and unscientific, and has caused a huge waste of resources in our country
At the same time, to achieve the optimum heat dissipation thickness of 330-350μm, the paint phase needs to be painted multiple times, resulting in a waste of resources
[0005] Third, the brushed surface is rough, which affects the appearance, and it is difficult to brush the dead corners in place, which is prone to rust
[0006] Fourth, although the effect of ordinary electrostatic powder coating is better than that of paint or silver paint, it is not ideal for improving heat dissipation efficiency
[0007] Through the search, no patent publications related to the patent application of the present invention have been found

Method used

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  • A special powder coating for radiator
  • A special powder coating for radiator
  • A special powder coating for radiator

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0046] The synthetic method of the above-mentioned saturated polyester resin corresponding to the indoor environment and the saturated polyester resin corresponding to the outdoor environment are the same, and both adopt a one-step process, mainly using the vacuum polycondensation and depolymerization method. The steps of preparation method are as follows:

[0047] Add the monomers and esterification catalysts of the polyacids and polyols listed above in proportion to the reaction kettle equipped with agitator, fractionating column, water separator, temperature controller, and nitrogen inlet, open the agitator, and The reaction mixture is heated to 200±50°C, and kept at this temperature for 1 hour, then heated to 250±20°C within 1.5±0.5 hours, kept at this temperature until the acid value of the obtained polyester is lower than 5mgKOH / g, and the mixture is Cool down to 170±20°C, add trimellitic anhydride or terephthalic acid when using in indoor environment (add part of isopht...

Embodiment 1

[0062] A special powder coating for radiators, its raw material components and parts by weight are respectively:

[0063] Linear bisphenol A type solid epoxy resin (the softening point temperature is 86°C-94°C, the average molecular weight is 800-1500, the epoxy value is 0.10-0.13) 210-350 parts;

[0064] 210-350 parts of saturated polyester;

[0065] 50-300 parts of special pigments;

[0066] 100-300 parts of filler;

[0067] Auxiliary 30 to 50 parts.

[0068] Wherein, the auxiliary agent is a mixture of leveling agent, anti-interference agent and defoamer, and the weight ratio of leveling agent: anti-interference agent: defoamer is 30:20:10.

[0069] The special powder coating for radiators is formulated for indoor use. Epoxy and polyester are curing agents for each other, and no additional curing agent is needed.

[0070] The steps of the preparation method of above-mentioned powder coating are as follows:

[0071] Add the above-mentioned materials to the high-speed mi...

Embodiment 2

[0074] A special powder coating for radiators, its raw material components and parts by weight are respectively:

[0075] 9335 saturated polyester 580-700 parts;

[0076] 40-70 parts of triglycidyl isocyanurate;

[0077] 50-300 parts of special pigments;

[0078] 100-300 parts of filler;

[0079] Auxiliary 30 to 50 parts.

[0080] Wherein, the auxiliary agent is a mixture of leveling agent, anti-interference agent and defoamer, and the weight ratio of leveling agent: anti-interference agent: defoamer is 52:35:20.

[0081] The special powder coating for radiators is formulated for outdoor use, and epoxy cannot be added.

[0082] The steps of the preparation method of the above-mentioned special powder coating for radiators are the same as in Example 1.

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Abstract

The invention relates to a special powder coating for a radiator. The special powder coating is composed of the following components in parts by weight: 210-350 parts or 0 part of epoxy resin, 210-600 part of saturated polyester, 40-70 parts or 0 part of curing agent, 50-300 parts of special pigment, 100-300 parts of pigment and 30-50 parts of auxiliaries, wherein the epoxy resin and the curing agent cannot be 0 part at the same time. The powder coating provided by the invention is of an indoor type and an outdoor type; the coating layers formed by the indoor type powder coating and the outdoor type powder coating are high in darkness value and decorative property; when heat is transferred to the coating layers through a metal material, the coating layers are capable of generating more infrared energy than the metal material, so that the radiant heat dissipation effect can be improved obviously; through detection, the heating efficiency is improved by more than 10%; and simultaneously, the radiator has a good decorative appearance, has a full surface and is fresh and bright; therefore, the taste and grade of the radiator are improved.

Description

technical field [0001] The invention belongs to the field of coatings, and relates to functional powder coatings, in particular to a special powder coating for heating radiators. Background technique [0002] In the field of traditional heating radiators, the earliest coating method is brushing paint or brushing silver paste, and the paint adheres to the surface of the workpiece after drying; or electrostatic spraying of ordinary powder coatings. There is following defective in existing coating method; [0003] First of all, the paint thinner (banana water) contains a lot of benzene, toluene, and xylene. Long-term inhalation of organic solvent vapor will cause aplastic anemia and even leukemia, which brings safety hazards to the health of painting workers. [0004] Secondly, the paint or silver paste is brushed on the surface of the radiator, which seriously hinders the heating and cooling function of the radiator. As early as the 1920s, the United States had research repo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D167/02C09D163/00C09D7/12C09D5/03C08G63/20C08G63/183C08G63/181
Inventor 赵金祥
Owner TIANJIN XIANGSHENG NEW MATERIALS CO LTD
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