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Shielding coating applied to electric power facilities and preparation method thereof

A technology for shielding coatings and power facilities, used in conductive coatings, epoxy resin coatings, coatings, etc., can solve problems such as general electromagnetic wave anti-interference performance, and achieve the effect of improving the quality of the coating, making up for the difficulty of dispersion and good conductivity.

Active Publication Date: 2019-10-01
国网河南省电力公司镇平县供电公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the anti-interference performance of the coating material to electromagnetic waves is average and needs to be improved.

Method used

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  • Shielding coating applied to electric power facilities and preparation method thereof

Examples

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preparation example Construction

[0033] Nickel plating of the present invention is to adopt the preparation method of electroless plating, obtains nickel-plated mica powder, and concrete preparation method comprises the following steps:

[0034] S1: prepare electroless nickel plating liquid, the weight percentage of this chemical nickel plating liquid is composed of: nickel sulfate 200-230g / L, nickel sulfamate 50~55g / L, potassium hypophosphite 15-18g / L, potassium sodium tartrate 8 -10g / L, sodium ethylhexyl sulfate 0.5-0.7g / L;

[0035] S2: The sensitized mica powder is plated with an electroless nickel plating solution for 12-15 minutes, the nickel plating temperature is 60-65° C., and the pH value is 4.1-4.3 to obtain nickel-plated mica powder.

[0036] Experiments have shown that when the nickel plating rate on the surface of mica is greater than 70%, and the mass percentage of nickel plating is 23.5-28.3%, its conductivity is close to that of nickel powder. Among them, nickel plating rate=area of ​​nickel-...

Embodiment 1

[0046] A shielding coating applied to power facilities, made of the following raw materials in parts by weight: 15 parts of bisphenol A epoxy acrylic resin, 10 parts of styrene-methyl methacrylate resin, 30 parts of nickel-plated mica powder, 1 part of joint agent, 0.5 parts of filler and 40 parts of solvent.

[0047] The particle size of the nickel-plated mica powder is 0.05 micron.

[0048] The nickel-plated mica powder is obtained by electroless nickel plating on the surface of the treated mica powder, and the processing method of the mica powder includes a pretreatment process, and the pretreatment process is: first, take 1.8g of sodium carbonate, add Water ethanol 10ml, distilled water to make up 1L, add 50g of mica powder, stir for 20min, rinse with distilled water until neutral; then, take 10g of ammonium fluoride, add 25ml of hydrochloric acid, make up 1L with distilled water, add the mica powder, stir for 10min, rinse with distilled water into neutral.

[0049] The ...

Embodiment 2

[0057] A shielding coating applied to power facilities, made of the following raw materials in parts by weight: 18 parts of bisphenol A epoxy acrylic resin, 12 parts of styrene-methyl methacrylate resin, 32 parts of nickel-plated mica powder, 1.5 parts of joint agent, 0.8 parts of filler and 45 parts of solvent.

[0058] The particle size of the nickel-plated mica powder is 0.10 micron.

[0059] The nickel-plated mica powder is obtained by electroless nickel plating on the surface of the treated mica powder, and the processing method of the mica powder includes a pretreatment process, and the pretreatment process is: first, take 1.9g of sodium carbonate, add Water ethanol 10ml, distilled water to make up 1L, add 50g of mica powder, stir for 20min, rinse with distilled water until neutral; then, take 11g of ammonium fluoride, add 26ml of hydrochloric acid, make up 1L with distilled water, add the mica powder, stir for 10min, rinse with distilled water into neutral.

[0060] T...

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Abstract

The invention provides a shielding coating applied to electric power facilities and a preparation method thereof, and belongs to the technical field of shielding materials. The shielding coating applied to the electric power facilities is prepared from, by weight, 15-25 parts of bisphenol A type epoxy acrylic resin, 10-20 parts of styrene-polymethyl methacrylate resin, 30-50 parts of nickel-platedmica powder, 1-3 parts of a coupling agent, 0.5-2 parts of a filler and 40-60 parts of a solvent. The device has a good shielding effect, reduces the outward propagation of noise, and effectively prevents fire and reduces the temperature. The shielding coating is optimized through the raw materials and proportion, thereby having excellent electromagnetic shielding performance, good stability andgood acid and alkali resistance.

Description

technical field [0001] The invention belongs to the technical field of shielding materials, and in particular relates to a shielding paint applied to electric facilities and a preparation method thereof. Background technique [0002] Electromagnetic shielding materials are a class of conductive materials with low resistivity. After the electromagnetic wave is injected, it is reflected by the surface of the electromagnetic shielding material or absorbed by the material body, making it difficult to penetrate. From a macro perspective, the electromagnetic wave is shielded on the incident surface of the electromagnetic shielding material, and the material that can shield the electromagnetic wave is the electromagnetic shielding material. If the electromagnetic shielding material is made into paint and coated on the surface of the shielding object to achieve the purpose of electromagnetic shielding, the electromagnetic shielding material in the form of paint is electromagnetic s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/10C09D125/14C09D7/62C09D7/61C09D7/63C09D5/24C09D7/20
CPCC09D5/24C09D163/10C09D7/20C09D7/61C09D7/62C09D7/63C08L25/14C08K9/02C08K3/34C08K3/04C08K3/36C08K5/5435C08K5/5425C08K5/544
Inventor 吕丽芳王晓娴王辉张培锋
Owner 国网河南省电力公司镇平县供电公司
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