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Use of room temperature sulphurized addition type fluorinated silicon rubber in insulator

A silicone fluorine rubber, room temperature vulcanization technology, applied in insulators, electrical components, circuits, etc., can solve problems such as pollution flashover accidents, and achieve the effects of long-lasting hydrophobic migration, excellent hydrophobicity, and low friction coefficient

Active Publication Date: 2004-11-10
NORTH CHINA ELECTRICAL POWER RES INST +1
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Problems solved by technology

However, with the increasingly serious air pollution, the hydrophilic defects of porcelain insulators made of inorganic oxides have become fatal, and pollution flashover accidents are prone to occur

Method used

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Embodiment Construction

[0006] The invention relates to the application of room temperature vulcanized addition type silicone fluororubber (PRTV) on insulators.

[0007] The preparation method of room temperature vulcanized addition type fluorosilicone rubber (PRTV) is as follows: fluorosilicone rubber and white carbon black filler are mixed in a banburying set, the mixing temperature is 70-120°C, and the pressure is lower than 0.3MPa. The mixed rubber is evenly re-milled on the open mill to form good fluidity. Put the rubber material into the reaction kettle, add a curing agent, and stir evenly to make a room temperature vulcanized addition type silicone fluororubber (PRTV). The curing agent is a methyl siloxane. The content of the above components is 55-70% of silicon fluororubber, 25-40% of white carbon black and 3-5% of monomethylsiloxane.

[0008] Clean, decontaminate, degrease, and grease the surface of the power transmission and transformation insulator equipment to be treated, and spray or b...

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PUM

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Abstract

The invention relates to a new use of addition silicofluoric rubber, specially an application of room temperature sulfureted addition silicofluoric rubber (PRTV) to an insulator, and its advantages are as follows: (1) excellent hydrophobic property and fast, balanced, and durable hydrophobic-migration property, heightened by twice above; (2) dielectric strength up to 30MV / m, antipollution flashover voltage reaching TMA 4.5 grade, flame retardancy reaching FV-0 grade, resisting arc and on an abnormal condition, effectively protecting electrotechnical porcelain devices from being damaged; (3) high mechanical strength, good adhesion, corrosion resistance to acids, alkalis, salts and chemical reagents, and good oil resistance; (4) ultraviolet and ozone resistance, environmental corrosion resistance, non-skinning, non-cracking, and service life reaching above 20 years; (5) small friction coefficient, and good anti-adhesion and self-cleaning property; (6) room temperature vulcanization, local moulding, convenient use, and meeting the needs of filed antipollution technical measures.

Description

(1) Technical field [0001] The invention relates to a new application of addition type fluorosilicone rubber, in particular the application of room temperature vulcanized addition type fluorosilicone rubber (PRTV) on insulators. (two), background technology [0002] An insulator is a kind of power equipment with inorganic oxide as its chemical composition. It has high strength and good insulation, and still plays an irreplaceable role in power systems, especially high-voltage systems. However, with the increasingly serious air pollution, the hydrophilic defects of porcelain insulators made of inorganic oxides have become fatal, and pollution flashover accidents are prone to occur. (3) Contents of the invention: [0003] In order to overcome the shortcomings of the prior art, the present invention is the application of room temperature vulcanized addition type silicone fluororubber (PRTV) on insulators to improve the anti-fouling flashover capability. [0004] The inventio...

Claims

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Application Information

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IPC IPC(8): C08L83/00H01B17/50
Inventor 宋福如
Owner NORTH CHINA ELECTRICAL POWER RES INST
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