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Electrically-conducting paint, preparation method and uses thereof

A technology for conductive coatings and metal powders, applied in conductive coatings, polyester coatings, epoxy resin coatings, etc., can solve the problems of insufficient smoothness, rough surface of film-forming substances, high cost, and achieve enhanced adhesion and good appearance. , the effect of close arrangement

Active Publication Date: 2008-12-03
ZHAOQING CITY CAIXIN DECORATION MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] At present, some manufacturers produce similar products, but these products have the following major disadvantages: (1) The surface of the film-forming material is rough and not smooth enough; (2) The conductive coating does not have adhesion to any material surface, especially the metal surface ( Polished stainless steel, aluminum-magnesium alloys, and chemically or physically treated metal surfaces)
[0007] Publication No. CN1390894A discloses a conductive coating on the inner wall of a battery case and a preparation method thereof. The composition of the conductive coating on the inner wall of a battery case by weight is as follows: resin 10- 20. Conductive powder 30-50, organic solvent 30-60, the resin is one or more of polyurethane resin, acrylic resin, epoxy resin; the preparation method is to mix polyurethane resin with dispersant first, add organic solvent and conductive powder, and finally add conductive additives; its defect is: the addition of conductive powder is large, and the cost is high. not good
thus affecting the electrical conductivity
Since the general coating of metal materials is difficult to adhere to, this patent does not clearly state whether it can adhere to the metal surface

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Conductive paint: 25g of flaky silver-copper metal powder with a particle size of 8μm, 10g of hydroxyl acrylic resin

[0044] Vinyl resin F-622 5g, titanate coupling agent 1g, anti-settling agent 69001g, wetting and dispersing agent EFKA-4010 1g, methyl isobutyl ketone MIBK 23g, ethyl acetate 30g, metal alignment accelerator (CAB resin class) 4g;

[0045] The preparation method of conductive paint and the method of film formation on the material surface:

[0046] (1) Put the metal powder in a vessel, add part of the diluent methyl isobutyl ketone MIBK 10g and ethyl acetate 10g, seal it, and place it for 30 minutes to make it wet and disperse;

[0047] (2) The film-forming resin hydroxy acrylic resin, the adhesion promoting resin vinyl acetate resin F-622, the conductive coating additive titanate coupling agent pyrophosphate type monoalkoxy titanate, the anti-settling agent 6900, and the wetting agent Wet dispersant EFKA-4010 mixed evenly;

[0048] (3) The mixture pre...

Embodiment 2

[0054] Conductive coating: 22g of scaly copper metal powder with a particle size of 5μm, 8g of bisphenol A epoxy resin, 10g of thermosetting acrylic resin, 8g of vinyl acetate resin E15 / 45M, 1.5g of titanate coupling agent, and 963 wetting and dispersing agent 1g, organoboronite 1, butyl acetate 20g, ethyl acetate 27g, metal alignment accelerator BYK-310 1.5g;

[0055] The preparation method of conductive paint and the method of film formation on the material surface:

[0056] (1) Put the metal powder in a vessel, add 15g of butyl acetate and 5g of ethyl acetate as part of the diluent, seal it, and place it for 20 minutes to make it wet and disperse;

[0057] (2) The film-forming resin bisphenol A epoxy resin and thermosetting acrylic resin, the adhesion promotion resin vinyl acetate resin E15 / 45M and the conductive coating additive titanate coupling agent composite monoalkoxy titanate, Wetting and dispersing agent 963 and anti-sedimentation agent organic boron bentonite are ...

Embodiment 3

[0064] Conductive paint: 28.6g of spherical copper and silver mixed metal powder with a particle size of 10μm, 15g of polyester polyol resin, 8g of vinyl acetate resin T-33, 0.5g of silane coupling agent, wetting and dispersing agent EFKENA-4070 1.2, gas phase Silicon dioxide 1.4, cyclohexanone 10g, ethyl acetate 20g, methyl isobutyl ketone 14.5g, metal alignment promoter (CAB resin) 0.8g;

[0065] (1) Put the metal powder in a vessel, add 5g of diluent cyclohexanone, 15g of ethyl acetate and 4g of methyl isobutyl ketone, seal it, and place it for 40min to make it wet and disperse;

[0066] (2) The film-forming resin polyester polyol resin, adhesion promoting resin vinyl acetate resin T-33 and conductive coating additive silane coupling agent modified aminosilane coupling agent, wetting and dispersing agent EFKENA-4070 and anti-sedimentation The agent fumed silica is mixed evenly;

[0067] (3) the mixture that step (2) is made is mixed with metal arrangement promoter (CAB res...

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Abstract

The invention discloses a conductive coating and the preparation method thereof and a method for forming film on material surface. The preparation method comprises the following steps: wetting and dispersing metal powder; uniformly mixing film-forming resin, chloride-vinyl acetate resin and conductive coating additive, adding diluting agent, stirring at high speed, dispersing to form a conductive paint base material, adding into the wetted and dispersed metal powder, and uniformly stirring; and sieving, removing impurities to obtain conductive coating, adding curing agent, and spraying or applying on material. The conductive coating has the advantages of smooth surface and high adhesion of film-forming substance, and good conductivity, and can be adhered on the surface of any materials.

Description

technical field [0001] The invention relates to a conductive paint, in particular to a conductive paint capable of shielding electromagnetic effects. The invention also relates to a preparation method of the conductive paint and a method of forming a film on the surface of a material by using the conductive paint. Background technique [0002] With the development of the IT industry, communication equipment occupies a very important position in modern life. Mobile phones, MP3, MP4 and other modern products have become indispensable communication and entertainment equipment in life. The improvement of consumer awareness has increasingly stringent requirements on product performance, appearance and function. At the same time, electromagnetic interference has become an increasingly serious problem, and it is necessary to use materials that can eliminate or weaken electromagnetic interference near interference sources or sensitive sources to reduce harm. [0003] In the IT indu...

Claims

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Application Information

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IPC IPC(8): C09D5/24C09D133/00C09D163/02C09D167/00C09D175/04C09D7/12B05D7/14B05D3/02
Inventor 宋健
Owner ZHAOQING CITY CAIXIN DECORATION MATERIALS
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