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Water-based conductive coating composition

A technology of conductive coatings and compositions, applied in conductive coatings, polyester coatings, epoxy resin coatings, etc., can solve the problems of strong substrate corrosion, substrate disturbance or burst, weak corrosion, etc., to reduce corrosion effect of ability

Inactive Publication Date: 2015-11-11
WUXI CHANGAN SHUGUANG GLOVE FACTORY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the shortcomings of the existing conductive coating composition, which is highly corrosive to the substrate and easily causes the substrate to be warped or burst, and to provide a conductive coating composition that is weakly corrosive to the substrate and does not cause substrate disturbance. Warped or cracked conductive coating compositions

Method used

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Examples

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preparation example Construction

[0018] The preparation method of the conductive coating composition provided by the invention comprises mixing the conductive particles, water-soluble resin, curing agent and water in a formulated amount, and the mixing is carried out in a mixer or under the assistance of ultrasound.

[0019] The preparation method also includes adding auxiliary agents and mixing, and the types of the auxiliary agents include wetting and dispersing agents, anti-sedimentation agents, coupling agents and adhesion promoters. The amount of each auxiliary agent is such that in the prepared conductive coating composition, based on the total weight of the conductive coating composition, the content of the wetting and dispersing agent is preferably 0.1-5% by weight, more preferably 0.5-3% by weight %; the content of anti-settling agent is preferably 0.1-8% by weight, more preferably 0.5-5% by weight; the content of coupling agent is preferably 0.1-8% by weight, more preferably 0.5-5% by weight; adhesio...

Embodiment 1

[0023] This example is used to illustrate the conductive coating composition provided by the present invention.

[0024] 15 parts by weight of epoxy resin, 5 parts by weight of organically modified bentonite anti-settling agent 818 (produced by Elementis Specialties company), 2 parts by weight of wetting and dispersing agent (DP983, produced by Deqian Company), 2 parts by weight of monoalkoxy Titanate coupling agent T204 (manufactured by Nanjing Xiangfei Company) was mixed and stirred at a speed of 3000 rpm for 30 minutes. Add the average particle diameter of 16 weight parts then in the mixture that is obtained and be the spherical conductive silver powder (SA-1 of Kunming Science and Technology Hengda) of 1 micron and the flake conductive silver powder (PA-1) of 10 microns of average particle diameter of 10 weight parts 1D, Kunming Polytechnic Hengda), 2 parts by weight of curing agent Bayhydur2487, and then add 50 parts by weight of water, and stir at a speed of 3000 rpm for...

Embodiment 2

[0026] This example is used to illustrate the conductive coating composition provided by the present invention.

[0027]The water-based polyurethane resin of 25 parts by weight, the average particle diameter of 50 parts by weight are the spherical conductive silver powder (Ningxia Dongfang special material) of 1 micron, the curing agent VestanatB1358 / 100 of 8 parts by weight and the water of 25 parts by weight are mixed, with 2000 Stirring at a speed of rpm for 3.5 hours to obtain conductive coating composition S2.

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Abstract

The invention provides a water-based conductive coating composition. The water-based conductive coating composition contains conductive particles, water-soluble resin, a curing agent and a solvent, wherein the conductive particles comprise spherical conductive particles and sheet-shaped conductive particles; based on the conductive particles, the content of the spherical conductive particles is 30-70wt%, and the content of the sheet-shaped conductive particles is 70-30wt%; based on the total weight of the conductive coating composition, the content of the conductive particles is 2-26wt%, the content of the resin is 5-60wt%, the content of the curing agent is 0.1-8wt%, and the content of the water is 20-70wt%. The invention also provides a preparation method of the conductive coating composition. The conductive coating composition provided by the invention has the beneficial effects that the conductive coating composition has weak corrosivity to substrates, therefore the conductive coating composition can not cause substrate burst when being used; the water-soluble resin and the water basically do not irritate human bodies or environments, therefore the conductive coating composition provided by the invention also has the characteristic of environmental protection.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a water-based conductive coating composition. Background technique [0002] With the development of information, home appliances, electronics, military and aviation technology, the hazards of electromagnetic radiation are highly valued by people. Electromagnetic radiation not only affects the health of the human body, but also interferes with the normal use of electronic equipment. How to effectively prevent the interference of electromagnetic radiation has been paid more and more attention by people. At present, the extensive use of plastic substrates with high resistivity makes it particularly important to prevent electromagnetic radiation interference. [0003] The commonly used method to prevent electromagnetic radiation is to form a conductive layer on the surface of the substrate, so that the substrate has the ability to conduct current and eliminate the accumulated stat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D175/04C09D133/00C09D183/04C09D167/08C09D7/12C09D5/24
Inventor 缪建良
Owner WUXI CHANGAN SHUGUANG GLOVE FACTORY
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