Wear-resistant electric insulating rubber material and preparation method thereof

A technology for insulating rubber and electricity, applied in the direction of organic insulators, plastic/resin/wax insulators, etc., can solve the problems of high cost, poor viscosity, difficult and cumbersome preparation process, etc., to improve plasticity, improve wear resistance, and a wide range of raw materials. Effect

Inactive Publication Date: 2018-08-28
HEFEI DAZHUO ELECTRIC POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can also produce light-colored products such as rubber shoes and sanitary products, but the defects of poor compatibility and viscosity in its own characteristics make the preparation process difficult and cumbersome, and the cost is high. Therefore, a new type of product with excellent performance and simple and convenient preparation has been developed. It is quite necessary for rubber to be used in the field of electrical insulation materials

Method used

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  • Wear-resistant electric insulating rubber material and preparation method thereof
  • Wear-resistant electric insulating rubber material and preparation method thereof
  • Wear-resistant electric insulating rubber material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A wear-resistant electrical insulating rubber material, which is prepared by weighing the raw materials in the following table 1:

[0021] Table 1

[0022]

[0023] Preparation of modified mullite fiber: get 10 kg of raw material mullite fiber and place it in a grinder for grinding, so that the length of the mullite fiber is less than or equal to 100 μm, and the aspect ratio is less than 10 to obtain mullite fiber fines; Laishi fiber fines were added to dimethylformamide solution with a mass concentration of 8%, soaked for 6h at a temperature of 44°C, ultrasonically treated for 25min after soaking, filtered and washed, and then added to a dimethylformamide solution with a mass concentration of 4%. Ultrasonic treatment in sulfuric acid solution for 60min, filtering and washing, and drying; then use acrylic acid copolymer to infiltrate the treated mullite fiber fines, and the infiltration temperature is 42°C; then use low-carbon polyhydric alcohol to infiltrate the inf...

Embodiment 2

[0028] A wear-resistant electrical insulating rubber material, which is prepared by weighing the raw materials in the following table 2:

[0029] Table 2

[0030]

[0031] Preparation of modified mullite fiber: get 15 kg of raw material mullite fiber and place it in a grinder for grinding, so that the length of the mullite fiber is less than or equal to 80 μm, and the aspect ratio is less than 11 to obtain mullite fiber fines; Laishi fiber fines were added to a dimethylformamide solution with a mass concentration of 10%, soaked at a temperature of 46°C for 7 hours, ultrasonically treated for 30 minutes after soaking, filtered and washed, and then added to a dimethylformamide solution with a mass concentration of 6%. Ultrasonic treatment in sulfuric acid solution for 70 minutes, filtered and washed, and then dried; then the treated mullite fiber fines were infiltrated with acrylic acid copolymer, and the infiltration temperature was 43°C; Coating with stone fiber fines, the...

Embodiment 3

[0036] A wear-resistant electrical insulating rubber material, which is prepared by weighing the raw materials in the following table 3:

[0037] table 3

[0038]

[0039] Preparation of modified mullite fiber: get 20 kg of raw material mullite fiber and place it in a grinder for grinding, so that the length of the mullite fiber is less than or equal to 90 μm, and the aspect ratio is less than 10 to obtain mullite fiber fines; Laishi fiber fines were added to a dimethylformamide solution with a mass concentration of 12%, soaked at a temperature of 48°C for 8 hours, ultrasonically treated for 35 minutes after soaking, filtered and washed, and then added to a dimethylformamide solution with a mass concentration of 8%. Ultrasonic treatment in sulfuric acid solution for 80min, filtering and washing, and drying; then use acrylic acid copolymer to infiltrate the treated mullite fiber fines, and the infiltration temperature is 44°C; then use low-carbon polyhydric alcohol to infiltra...

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Abstract

The invention discloses a wear-resistant electric insulating rubber material and a preparation method thereof, and relates to the technical field of electric insulating materials. The material comprises the following raw materials: butyl rubber, ethylene-vinyl acetate copolymer, modified mullite fiber, quartz powder, hydroxyethyl cellulose ether, methyl pentachlorostearate, hindered amine, hydroxycyclohexyl phenyl ketone, lubricant, crosslinking agent, flame retardant and nano oxide. The preparation method comprises operations of mixing, open milling and the like of the raw materials to prepare the wear-resistant electric insulating rubber material. The rubber material provided by the invention has the characteristics of simple preparation method, wide raw material sources, low cost, excellent comprehensive performance, high electrical insulating property, good mechanical properties, stable physical and chemical properties, oxygen resistance, wear resistance and aging resistance, greatly prolongs the service life of a product, and has broad market prospects.

Description

technical field [0001] The invention relates to the technical field of electrical insulating materials, in particular to a wear-resistant electrical insulating rubber material and a preparation method thereof. Background technique [0002] The insulating rubber currently on the market is mainly ethylene-propylene rubber. The main chain of EPDM rubber is composed of chemically stable saturated hydrocarbons, and only unsaturated double bonds are contained in the side chains, so it is basically a saturated rubber. Because there are no polar substituents in the molecular structure and the cohesion between molecules is low, the molecular chain can maintain flexibility in a wide temperature range. Its comprehensive performance is excellent, ranking first among general-purpose rubbers. It can be used as tire sidewalls, rubber strips, inner tubes, and automotive parts, as well as wires, cable sheaths, and high-voltage and ultra-high-voltage insulation materials. It can also produce...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/22C08L23/08C08L1/28C08K13/06C08K9/10C08K7/10C08K3/36C08K5/101C08K3/22C08K5/3492C08K3/32C08K3/38H01B3/44
CPCC08L23/22C08K2003/222C08K2003/2227C08K2003/2244C08K2003/2296C08K2003/323C08K2003/387C08K2201/011C08L2201/08C08L2203/202C08L2205/035H01B3/441C08L23/0853C08L1/284C08K13/06C08K9/10C08K7/10C08K3/36C08K5/101C08K3/22C08K5/34922C08K3/32C08K3/38
Inventor 杨自芬
Owner HEFEI DAZHUO ELECTRIC POWER CO LTD
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