Novel high-temperature resistance insulation coating

An insulating coating and high-temperature-resistant technology, which is applied in the coating and other directions, can solve the problems of affecting the service life of the coating, increasing the cost, and deteriorating the mechanical properties of the coating, so as to achieve the effects of long service life, increased sealing, and improved electrical performance

Active Publication Date: 2013-10-16
江苏达胜热缩防护用品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, there are a variety of insulating coatings that can be adapted to high temperature environments. These coatings can still maintain good dielectric properties and have good insulation properties under high temperature environments. However, some coatings can meet the requirements of insulation in high temperature environments. Performance requirements, but due to the formulation and process of the coating itself, the mechanical properties of some coatings will deteriorate under high temperature conditions, thus affecting the service life of the coating and increasing the cost

Method used

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Examples

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Effect test

Embodiment 1

[0024] (1) Silicone pretreatment: Mix well with ammonia water and polymethylphenyl silicone resin, then place it for a certain period of time, wash it with distilled water until neutral, remove the water, and adjust the pressure to -0.1~-1.5Mpa in a vacuum state A small amount of residual water and ammonia can be removed under the pressure to obtain a silicone resin with less chlorine and better electrical properties.

[0025] (2) Coating preparation: Weigh the treated polymethylphenyl silicone resin obtained in step (2) according to the corresponding components in formula table 1, add filler first, mix well and then add auxiliary agent, and gradually dispersed in a sand mill until the fineness is below 20 μm to obtain the high temperature resistant insulating coating.

[0026] In this embodiment, polymethylphenyl silicone resin is generally made of CH 3 SiO 3 / 2 , (CH 3 ) 2 SiO 2 / 2 Copolymers composed of siloxane chains, and the introduction of phenyl siloxane chains in t...

Embodiment 2

[0028] (1) Silicone pretreatment: Mix well with ammonia water and polyethylphenyl silicone resin, then place it for a certain period of time, wash it with distilled water until neutral, remove the water, and adjust the pressure to -0.1~-1.5Mpa in a vacuum state A small amount of residual water and ammonia can be removed under the pressure to obtain a silicone resin with less chlorine and better electrical properties.

[0029] (2) Coating preparation: Weigh the treated polyethylphenyl silicone resin obtained in step (2) according to the corresponding components in formula table 1, add filler first, mix well and then add auxiliary agent, and gradually dispersed in a sand mill until the fineness is below 20 μm to obtain the high temperature resistant insulating coating.

[0030] In this example, the polyethylphenyl silicone resin is generally a copolymer containing ethyl and phenyl groups in the siloxane chain link. This copolymer has better elasticity than the product containing...

Embodiment 3

[0032] (1) Silicone pretreatment: Mix well with ammonia water and polymethylphenyl silicone resin, then place it for a certain period of time, wash it with distilled water until neutral, remove the water, and adjust the pressure to -0.1~-1.5Mpa in a vacuum state A small amount of residual water and ammonia can be removed under the pressure to obtain a silicone resin with less chlorine and better electrical properties.

[0033] (2) Coating preparation: Weigh the treated polymethylphenyl silicone resin obtained in step (2) according to the corresponding components in formula table 1, add filler first, mix well and then add auxiliary agent, and gradually dispersed in a sand mill until the fineness is below 20 μm to obtain the high temperature resistant insulating coating.

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Abstract

The invention provides a novel high-temperature resistance insulation coating. The coating comprises following components in parts by weight: 30 to 40 parts of poly alkyl aryl organic silicon resin, 40 to 60 parts of stuffing material, 1 to 28 parts of curing agent, 0.01 to 0.1 part of anti-settling agent, 0.01 to 0.7 part of antifoaming agent, and 0.01 to 0.3 part of levelling agent. The poly alkyl aryl organic silicon resin is poly methyl phenyl organic silicon resin or poly ethyl phenyl organic silicon resin; the stuffing material is composed of one component or a plurality of components selected from following components: silicon oxide, zinc oxide, alumina, and mica; and the curing agent is an epoxy polyamide curing agent. The novel high-temperature resistance insulation coating has the advantages of high thermal resistance, capability of being used at the temperature of 600 DEG C while still having good mechanic performance and stability, good insulation performance, and long service life. Furthermore, the preparation method of the coating is simple, and meets the requirement of saving cost.

Description

technical field [0001] The invention relates to an insulating coating, in particular to a novel high temperature resistant insulating coating. Background technique [0002] In order to ensure the normal operation of power equipment under various special conditions, it is necessary to develop insulating materials suitable for various working environments to improve the ability of power equipment to adapt to the environment and prolong the service life of the equipment itself. At present, there are many types of insulating materials, such as insulating packaging materials, insulating paper, insulating plastics, insulating coatings, etc. Among them, insulating coatings are more and more used in various industries due to their simple preparation method and convenient construction process. on the device. [0003] At present, there are a variety of insulating coatings that can be adapted to high-temperature environments. These coatings can still maintain good dielectric propertie...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D183/04C09D5/25
Inventor 杨军伟庄向阳
Owner 江苏达胜热缩防护用品有限公司
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