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Low-loss insulating material capable of realizing self-detection of temperature, and preparation method and application thereof

An insulating material and self-testing technology, applied in the field of electrical functional materials, can solve the problems of many components blocking each other, unfavorable promotion and use, high technical cost, etc., to achieve the effect of reducing dielectric loss, difficult to detect dead corners, and avoiding color rendering failure.

Active Publication Date: 2020-06-19
STATE GRID JIANGXI ELECTRIC POWER CO LTD RES INST +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the complex internal structure of the high-voltage switchgear, the small space, and the mutual shielding of components, the above-mentioned traditional temperature measurement method is difficult to meet the real-time and accurate temperature monitoring of the switchgear.
In addition, technologies such as infrared temperature measurement are expensive, and have certain requirements for the technical level of operation and maintenance personnel, which is not conducive to popularization and use.

Method used

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  • Low-loss insulating material capable of realizing self-detection of temperature, and preparation method and application thereof
  • Low-loss insulating material capable of realizing self-detection of temperature, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A low-loss temperature self-detecting insulating material, comprising the following raw materials in parts by mass: 100 parts of room temperature vulcanized silicone rubber, 5 parts of temperature-sensitive reversible color powder and 1 part of silane coupling agent. The raw materials used in temperature-sensitive reversible color powder include organic microcapsules, color developer and solvent with a mass ratio of 1:3:10, which are mixed evenly, and through the polymerization reaction of organic microcapsules, the organic microcapsules wrap the display Chromogenic agent, wherein said chromogenic agent is a red chromogenic agent; specifically 6'-(diethylamino)-1', 2'-benzofluorane and 6'-(diethylamino)-1' , 3'-Dimethylfluorane; the organic microcapsule is amino resin, and the solvent is a mixture of ethyl stearate and methyl palmitate.

[0029] The silane coupling agent is 3-aminopropyltriethoxysilane.

[0030] A method for preparing a low-loss temperature self-detect...

Embodiment 2

[0035] A low-loss temperature self-detection insulating material, including the following raw materials in parts by mass: 50 parts of room temperature vulcanized silicone rubber, 5 parts of temperature-sensitive reversible color powder and 1 part of silane coupling agent

[0036] The raw materials used in temperature-sensitive reversible color powder include organic microcapsules, color developer and solvent with a mass ratio of 1:3:10, which are mixed evenly, and through the polymerization reaction of organic microcapsules, the organic microcapsules wrap the display A coloring agent, wherein said coloring agent is a red coloring agent.

[0037] The red color reagents are 6'-(diethylamino)-1',2'-benzofluoran and 6'-(diethylamino)-1',3'-dimethylfluoran, organic microcapsules What adopt is amino resin, what solvent adopts is the mixture of ethyl stearate and methyl palmitate.

[0038] The silane coupling agent is γ-aminopropyltriethoxysilane.

[0039] A method for preparing a ...

Embodiment 3

[0044] A low-loss temperature self-detection insulating material, comprising the following raw materials in parts by mass: 100 parts of room temperature vulcanized silicone rubber, 20 parts of temperature-sensitive reversible color powder and 10 parts of silane coupling agent.

[0045] The raw materials used in temperature-sensitive reversible color powder include organic microcapsules, color developer and solvent with a mass ratio of 1:3:10, which are mixed evenly, and through the polymerization reaction of organic microcapsules, the organic microcapsules wrap the display Chromogenic agent, wherein said chromogenic agent is a red chromogenic agent, specifically 6'-(diethylamino)-1', 2'-benzofluorane and 6'-(diethylamino)-1' ,3'-Dimethylfluoran. What the organic microcapsule adopts is amino resin, and what the solvent adopts is the mixture of ethyl stearate and methyl palmitate.

[0046] The silane coupling agent is n-octyltriethoxysilane.

[0047] A method for preparing a l...

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Abstract

The invention discloses a low-loss insulating material capable of realizing self-detection of temperature. The low-loss insulating material comprises the following components in parts by mass: 25-100parts of room-temperature vulcanized silicone rubber, 5-50 parts of reversible thermochromic powder and 1-10 parts of a silane coupling agent. A preparation method of the material comprises the following steps: mixing the reversible thermochromic powder with the silane coupling agent; adding the treated thermochromic powder into the room-temperature vulcanized silicone rubber, and carrying out stirring in a vacuum environment; and vulcanizing the uniformly stirred mixture at normal temperature for 20-30 hours, and carrying out molding. The color of the insulating material can be remarkably changed after a temperature exceeds 65 DEG C, and can be recovered when the temperature is lower than 65 DEG C; and after the temperature of the material rises, the dielectric loss of the material can bereduced, so the damage of heating to equipment is reduced. The low-loss insulating material is of great significance for timely discovering the abnormal heating condition of electrical equipment andreducing the threat of heating to the electrical equipment.

Description

technical field [0001] The invention relates to the field of electrical functional materials, in particular to a low-loss temperature self-detection insulating material and a preparation method and application thereof. Background technique [0002] Electrical equipment such as high-voltage switchgear is an important equipment in the power transmission and distribution system. It undertakes important functions such as breaking and closing power lines, line fault protection, and monitoring operating power data. It has been increasingly widely used in power systems. As an important part of ultra-large-scale power transmission and distribution and grid security, the safety and reliability of high-voltage switchgear has also received strong attention. The failure of high-voltage switchgear caused by heat is one of the fundamental factors that threaten the safety and reliability of high-voltage switchgear. The main reason for this problem is the lack of temperature control for ele...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L83/04C08L61/20C08K9/10C08K5/544C08K5/18C08K5/3417C08K5/5419
CPCC08L83/04C08L2203/20C08L2205/14C08K2201/014C08L61/20C08K13/06C08K9/10C08K5/544C08K5/18C08K5/5419C08K5/3417
Inventor 陈田尹桂来张宇晏年平康琛辛建波刘衍李帆
Owner STATE GRID JIANGXI ELECTRIC POWER CO LTD RES INST