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Extra-high-voltage composite insulator material preparation method

A composite insulator and ultra-high voltage technology, which is applied in the field of preparation of ultra-high voltage composite insulator materials, can solve the problems of low dielectric loss, unsatisfactory mechanical strength and electrical breakdown strength, and difficult to clean, so as to meet the service life requirements, good quality Market promotion value, the effect of good aging resistance

Inactive Publication Date: 2017-06-13
宁波高新区远创科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem mainly solved by the present invention is to provide a kind of insulating EPDM rubber as raw material for the defects of traditional insulator materials that are easily polluted by pollution, difficult to clean, and have unsatisfactory mechanical strength, electrical breakdown strength and aging resistance. A method for preparing UHV composite insulator materials by modifying organosiloxane with high electrical breakdown strength, supplemented with mica to enhance electrical breakdown strength, and using nano-titanium dioxide and cadmium sulfide as photocatalysts to improve the antifouling properties of materials , the present invention first modifies the EPDM rubber with organosiloxane to enhance the electrical breakdown strength and mechanical strength of the rubber, and then mixes sericite, titanium dioxide, etc. with the gum to increase the active group of the solid, In order to improve the compatibility with rubber, mica has a strong resistance to electrical breakdown strength, titanium dioxide and cadmium sulfide can use ultraviolet light and visible light to decompose pollutants, while montmorillonite can absorb ultraviolet light, supplemented with tea saponin can Increase the aging resistance of the material, and finally carry out kneading and cold pressing to obtain the UHV composite insulator material. The insulator material prepared by the invention has the characteristics of high volume resistivity and low dielectric loss, and at the same time effectively solves the problem of traditional The insulator material is difficult to clean, the mechanical strength and electrical breakdown strength are not ideal, and the aging resistance is not good, so it has broad application prospects

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0017] First weigh 200g of EPDM rubber into a three-necked flask filled with 1L of toluene, place the flask in an oil bath, control the temperature of the oil bath to 120°C, and then add 15g of silane coupling agent KH-550 into the flask , after stirring and dissolving for 90 minutes, add 1 g of benzoyl peroxide to the flask, under nitrogen protection, keep stirring and react for 3 hours, wait for the reaction to end, collect the product, add 800 mL of anhydrous methanol to the product, stir and mix for 2 minutes, Stand still for 30 minutes, filter, collect the gel, and set aside; then weigh 200g sericite, 10g titanium dioxide, 20g cadmium sulfide and 60g montmorillonite, add them to the pulverizer and grind them, pass through a 80-mesh sieve, collect the sieved material, and take 200g Add the sieved material, 60g gum arabic and 800mL water into a beaker, stir and mix for 5min to obtain a fermentation substrate, add the fermentation substrate to the fermenter, and then add 6% o...

example 2

[0020] First weigh 250g of EPDM rubber into a three-necked flask filled with 2L of toluene, place the flask in an oil bath, control the temperature of the oil bath to 125°C, and then add 18g of silane coupling agent KH-550 into the flask , after stirring and dissolving for 105 minutes, add 2 g of benzoyl peroxide to the flask, under nitrogen protection, keep stirring and react for 3 hours, wait for the reaction to end, collect the product, add 900 mL of anhydrous methanol to the product, stir and mix for 4 minutes, Stand still for 35 minutes, filter, collect the gel, and set aside; then weigh 250g of sericite, 13g of titanium dioxide, 25g of cadmium sulfide and 65g of montmorillonite, add them to the pulverizer and grind them, pass through a 90-mesh sieve, collect the sieved material, and take 250g The sieved material, 70g gum arabic and 900mL water were added to the beaker, stirred and mixed for 8min to obtain the fermentation substrate, the fermentation substrate was added to...

example 3

[0023] First weigh 300g of EPDM rubber into a three-necked flask filled with 2L of toluene, place the flask in an oil bath, control the temperature of the oil bath to 130°C, and then add 20g of silane coupling agent KH-550 into the flask , after stirring and dissolving for 120min, add 3g of benzoyl peroxide to the flask, under nitrogen protection, keep stirring and react for 4h, wait for the reaction to end, collect the product, add 1000mL of anhydrous methanol to the product, stir and mix for 5min, Stand still for 40 minutes, filter, collect the gel, and set aside; then weigh 300g sericite, 15g titanium dioxide, 30g cadmium sulfide and 70g montmorillonite, add them to the pulverizer and grind them, pass through a 100-mesh sieve, collect the sieved material, and take 300g Add the sieved material, 80g gum arabic and 1000mL water into the beaker, stir and mix for 10min to obtain the fermentation substrate, add the fermentation substrate to the fermenter, and then add 6% of the fe...

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Abstract

The invention discloses an extra-high-voltage composite insulator material preparation method and belongs to the technical field of insulator material preparation. The preparation method disclosed by the invention comprises the steps: firstly organic siloxane is utilized to modify ethylene propylene diene monomer to enhance electric breakdown resistance strength and mechanical strength of rubber; then sericite and the like are mixed with gum to be fermented to improve solid active groups to improve compatability with the rubber, wherein mica has stronger electric breakdown resistance strength, titanium dioxide and cadmium sulfide can each utilize ultraviolet light and visual light to decompose pollutants, montmorillonite can absorb the ultraviolet light at the same time, and ageing resistance of materials can be improved by being assisted by tea saponin; finally, the extra-high-voltage composite insulator material can be prepared by mixing, cold pressing and shaping. The insulator material prepared through the preparation method disclosed by the invention has the characteristics of high volume resistivity and low dielectric loss, has wide application prospect and effectively solves the problems that a traditional insulator material is difficult to clean and does not have ideal mechanical strength or electric breakdown strength and poor ageing resistance at the same time.

Description

technical field [0001] The invention discloses a method for preparing an ultra-high voltage composite insulator material, and belongs to the technical field of insulator material preparation. Background technique [0002] With the development of social economy and industry, the power system network is becoming more and more complex, and the requirements for power supply reliability are getting higher and higher. In overhead transmission lines, insulator materials play an important role and are mainly used to support and fix busbars and live wires. Conductors, and there is sufficient distance and insulation between live conductors or between conductors and the earth. The quality of the insulator material is very important to the safe operation of the line. In operation, it should mainly have the following bearing capacity: (1) bear the tension in the horizontal direction of the wire and the load in the vertical direction; (2) bear the mechanical forces such as comprehensive ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B19/00C08L23/16C08L5/00C08K13/06C08K9/06C08K3/08C08K5/098C08K3/34C08K3/22C08K3/30
CPCH01B19/00C08K2201/011C08K2201/014C08L23/16C08L2201/08C08L2203/20C08L5/00C08K13/06C08K9/06C08K2003/0806C08K5/098C08K3/34C08K2003/2227C08K2003/2241C08K2003/3009
Inventor 何迎春王维孙冬
Owner 宁波高新区远创科技有限公司
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