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Aqueous single component conductive coating for insulator and preparation method thereof

A single-component technology for insulators, applied in conductive coatings, anti-corrosion coatings, epoxy resin coatings, etc., can solve problems such as poor corrosion protection, insufficient airtightness of insulators, and inconvenient construction, etc., to achieve excellent long-term sealing , Fast establishment of hardness and high protection life

Active Publication Date: 2020-07-28
NANJING CHANGJIANG PAINT
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Mainly: 1) Most of them are water-based two-component conductive coatings. For the protection of steel foot zinc sleeves, the construction is not very convenient, the application period is short, and the pace is slow; 2) One-component water-based acrylic-based conductive coatings are prone to contact with concrete substrates Poor binding force and poor adhesion with the zinc sheathing lead to insufficient airtightness of the entire insulator; 3) The product is mainly oriented to metal substrates, and the corrosion protection effect is not good when applied to concrete, and the sealing effect is not good. Poor adhesion between layers

Method used

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  • Aqueous single component conductive coating for insulator and preparation method thereof
  • Aqueous single component conductive coating for insulator and preparation method thereof
  • Aqueous single component conductive coating for insulator and preparation method thereof

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preparation example Construction

[0031] (1) Preparation of polymer-modified graphene aqueous dispersion: add water and sodium hydroxide to a container and stir evenly. After adding graphite oxide, aniline and pyrrole and mixing, ultrasonically disperse uniformly for 30 minutes, then transfer to ice-water bath for 10 minutes. Within 1h, an aqueous solution of ammonium persulfate was slowly added to the above mixed solution. Under the condition of ice-water bath, continue to stir and react for 15-25h, add a small amount of ammonia water, adjust the pH value of the system to 10-11, add hydrazine hydrate solution, and carry out reflux reaction at 82-88°C for 18-22h. After the reflux reaction is completed, sequentially Wash the product with absolute ethanol and distilled water until it is transparent and the pH value is 7.5 to 8.5 to obtain a solid primary product; after mixing the above solid with a wetting agent and water evenly, add 0.01mol / L sulfuric acid dropwise to adjust the pH value 6.5-7.5, ultra-dispers...

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Abstract

The invention discloses an aqueous single component static conductive coating for an insulator and a preparation method thereof, and belongs to the field of coatings. The coating is a single-componentsystem and is mainly prepared from single component aqueous epoxy resin, polymer modified graphite water dispersion, polymer modified conductive graphite slurry, auxiliaries and water. The coating has the characteristics of high static conductive stability, corrosion resistance, low VOC emission during coating, high storage stability, excellent long-acting sealing property and the like, has an excellent adhesive force with metal and concrete, and has an excellent interlayer binding force with a zinc sleeve.

Description

technical field [0001] The invention relates to the field of paint, more specifically to a water-based one-component conductive paint for insulators and a preparation method thereof, belonging to the technical field of water-based paint production. Background technique [0002] Static conductive coatings generally refer to a type of special functional coatings that are coated on non-conductive substrates and have the ability to conduct current and eliminate accumulated static charges, electromagnetic shielding and electric heating. They are mainly divided into blending type and intrinsic type. Conductive coatings have been widely used in many fields such as electronic appliances, chemical equipment, and military affairs. The blended conductive coating is to add metal particles into the insulating polymer to make the polymer have conductive properties. This conductive property is not an inherent characteristic of the polymer. Substances to achieve, such as graphite, carbon b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D5/24C09D5/08
CPCC09D163/00C09D5/24C09D5/08C08K2201/001C08L2205/035C08L2205/025C08L79/02C08L79/04C08L63/00C08K13/04C08K3/04C08K3/042
Inventor 陈以满张卫中
Owner NANJING CHANGJIANG PAINT
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