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Fluorosilicone rubber for aging-resistant porcelain composite insulators and its application

A technology of porcelain composite insulators and fluorosilicone rubber, which is applied in the manufacture of silicone rubber materials, can solve the problems of decreased hydrophobicity, limited light resistance of porcelain composite insulators, and affecting the service life of insulators, achieving the effect of small decline

Active Publication Date: 2017-06-13
JIANGSU SOUTH PORCELAIN INSULATOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The plateau area has high altitude, large temperature difference between day and night, and harsh environment, especially the high total and high intensity of ultraviolet light. Conventional porcelain composite insulators have limited light resistance. The outer silicone rubber shed is exposed to high temperature and Under the effect of strong radiation, oxidation reaction occurs on the surface, and the hydrophobicity decreases, which greatly affects the service life of the insulator and seriously threatens the normal operation of the power system

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A fluorosilicone rubber for aging-resistant porcelain composite insulators, the fluorosilicone rubber is made of the following formula in parts by weight: 32 parts of fluororubber raw rubber, 68 parts of silicone rubber compounded rubber, 30 parts of aluminum hydroxide powder, gas phase 10 parts of French silica, 0.8 parts of bis-pentasulfur agent, 4 parts of polytetrafluoroethylene powder, 8 parts of magnesium oxide / calcium oxide 1:1, 2 parts of diphenylsilanediol, 5 parts of stearic acid, oxidized Iron red H101 7 parts.

[0019] Comparing the hydrophobic performance test results of the fluorosilicone rubber prepared in Example 1 and the corresponding comparative silicone rubber, it can be seen that after the artificial photoaging treatment, the static contact angles of the fluorosilicone rubber of Example 1 and the comparative silicone rubber all decrease, Explain that after long-time light exposure, their hydrophobicity all declines, but the rate of change of the sta...

Embodiment 2

[0022] 30 parts of fluorine rubber raw rubber, 50 parts of silicone rubber compound, 23 parts of aluminum hydroxide powder, 5 parts of fumed silica, 0.4 parts of bis-pentasulfur agent, 0.4 parts of polytetrafluoroethylene powder, magnesium oxide / oxidized Calcium (2:1) 5 parts, methylphenyldiethoxysilane 2 parts, stearic acid 3 parts, iron oxide red H101 6 parts.

[0023] Comparing the hydrophobic performance test results of the fluorosilicone rubber prepared in Example 2 and the corresponding comparison silicone rubber, it can be seen that after the artificial photoaging treatment, the static contact angles of the fluorosilicone rubber of Example 2 and the comparison silicone rubber all decrease, Explain that after long-time light exposure, their hydrophobicity all declines, but the rate of change of the static contact angle of the fluorosilicone rubber of embodiment 2 is obviously lower than the corresponding contrast silicone rubber, illustrating that the degree of hydrophobi...

Embodiment 3

[0026] 40 parts of fluororubber raw rubber, 70 parts of silicone rubber compound, 41 parts of aluminum hydroxide powder, 15 parts of fumed silica, 1 part of bis-pentasulfur agent, 4 parts of polytetrafluoroethylene powder, magnesium oxide / oxidized Calcium (2:1) 9 parts, diphenylsilanediol 5 parts, stearic acid 6 parts, iron oxide red H101 8 parts.

[0027] Comparing the hydrophobic performance test results of the fluorosilicone rubber prepared in Example 3 and the corresponding comparison silicone rubber, it can be seen that after artificial photoaging treatment, the static contact angles of the fluorosilicone rubber of Example 3 and the comparison silicone rubber are all reduced, Explain that after long-time light exposure, their hydrophobicity all declines, but the rate of change of the static contact angle of the fluorosilicone rubber of embodiment 3 is obviously lower than the corresponding comparison silicone rubber, illustrating that the degree of hydrophobicity decline o...

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PUM

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Abstract

The invention discloses fluorinated silicone rubber for an anti-aging ceramic composite insulator. The fluorinated silicone rubber is prepared from the following active ingredients in parts by weight: 30-40 parts of raw fluororubber, 50-70 parts of silicon rubber compound, 23-41 parts of aluminium hydroxide powder, 5-15 parts of gaseous white carbon black, 0.4-1 part of Luperox, 0.4-4 parts of polytetrafluoroethylene powder, 5-9 parts of anti-aging heat-resistant additive, 2-5 parts of structure control agent, 3-6 parts of plasticizer, and 6-8 parts of coloring agent. The invention further discloses applications of fluorinated silicone rubber for the anti-aging ceramic composite insulator in preparation of an insulator umbrella skirt. The anti-tearing strength of the insulator umbrella skirt prepared by adopting the formula is improved by 167% compared with that of the conventional umbrella skirt; after being subjected to manual light aging treatment, the fluorinated silicone rubber prepared by the formula is nearly unchanged for tensile strength, and the tensile strength of the corresponding control silicon rubber is reduced by 25%.

Description

technical field [0001] The invention relates to the manufacture of silicone rubber materials, in particular to fluorosilicone rubber for aging-resistant porcelain composite insulators installed in high-altitude areas and its application. Background technique [0002] Porcelain composite insulators combine the advantages of disc glass, porcelain insulators and composite insulators. Porcelain composite insulators have been greatly improved in both mechanical strength and antifouling performance. With the development of my country's western region and the development of UHV projects nationwide, porcelain composite insulators have been more and more widely used in high-altitude areas. [0003] The plateau area has high altitude, large temperature difference between day and night, and harsh environment, especially the high total and high intensity of ultraviolet light. Conventional porcelain composite insulators have limited light resistance. The outer silicone rubber shed is ex...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L83/04C08L27/12C08L27/18C08K13/02C08K3/22C08K3/36C08K5/09C08K5/5419C08K3/06
Inventor 张志刚谢从珍罗杰韩晓春张营刘少华王士维
Owner JIANGSU SOUTH PORCELAIN INSULATOR CO LTD
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