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PRTV durability anti-pollution flashover paint

An anti-fouling flashover coating and a durable technology, applied in coatings and other directions, can solve the problems of poor sag resistance and uneven thickness, and achieve stable flame retardancy and aging resistance, uniform thickness, and improved aging resistance Effect

Inactive Publication Date: 2012-10-03
TIANJIN DINGXUANKE IND TRADE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention discloses a PRTV durable anti-pollution flashover coating in order to solve the technical problems of poor sag resistance and non-uniform thickness of the silicone rubber insulating coating in the known technology.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Embodiment 1: get 40 parts by weight of dihydroxypolydimethylsiloxane; Nano SiO 2 2 parts by weight; 2 parts by weight of crosslinking agent; 0.02 parts by weight of catalyst; 30 parts by weight of aluminum hydroxide; 8 parts by weight of decabromodiphenyl ether; 40 parts by weight of solvent; . The dihydroxypolydimethylsiloxane viscosity range of Example 1 is 15000-20000 cs.

Embodiment 2

[0016] Embodiment 2: get 45 parts by weight of dihydroxy polydimethylsiloxane; Nano SiO 2 4 parts by weight; 4 parts by weight of crosslinking agent; 0.5 parts by weight of catalyst; 25 parts by weight of aluminum hydroxide; 6 parts by weight of decabromodiphenyl ether; 45 parts by weight of solvent; . The dihydroxypolydimethylsiloxane viscosity range of Example 2 is 20000-30000 cs.

Embodiment 3

[0017] Embodiment 3: get 50 parts by weight of dihydroxy polydimethylsiloxane; Nano SiO 2 6 parts by weight; 6 parts by weight of crosslinking agent; 1 part by weight of catalyst; 20 parts by weight of aluminum hydroxide; 5 parts by weight of decabromodiphenyl ether; 50 parts by weight of solvent; . The dihydroxy polydimethylsiloxane viscosity range of Example 3 is 30000-40000 cs.

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PUM

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Abstract

The invention relates to PRTV durability anti-pollution flashover paint, which comprises the following components by part by weight: 40 to 50 parts of dihydric polydimethylsiloxane, 2 to 6 parts of nano Si02, 2 to 6 parts of cross-linking agent, 0.02 to 1 part of catalyst, 20 to 30 parts of aluminum hydroxide, 5 to 8 parts of decabromodiphenyl, 40 to 50 parts of solvent and 1 to 2 parts of pigment. The paint uses dihydric polydimethylsiloxane as base rubber and has the good properties of ageing resistance, corrosion resistance, water resistance, moisture prevention, no toxin, insulation, shake resistance, excellent simulation, demolding, extremely low contractibility rate and the like. Because nano Si02 is added to the paint, the weather fastness, the ultraviolet resistance and the ageing resistance of a coating are improved. The aluminum hydroxide and the decabromodiphenyl are used as excellent composite fire retardants for the paint, thereby remarkably enhancing the arc resistance of the paint and helping to increase the thickness of the coating. Therefore, inflaming retarding and ageing resistance become more stable.

Description

technical field [0001] The invention belongs to insulating coatings, in particular to a PRTV durable antifouling flashover coating. Background technique [0002] Normal temperature curing silicone rubber as an anti-fouling flashover coating for insulators has been affirmed by the national power department, and an industry standard has been formulated, namely "Technical Conditions for Normal Temperature Curing Silicone Rubber Anti-fouling Flashover Coating for Power Systems" (DL / T627—2004). It can be seen from the technical conditions that the main technical indicators of PRTV durable antifouling flashover coatings are hydrophobicity, flame retardancy and aging resistance. [0003] Hydroxyl-terminated polysiloxane is generally used as the main material in the known technology of curing silicone rubber at room temperature, and its content reaches 20-40%. [0004] However, the existing silicone rubber insulating coatings that meet the technical conditions of anti-pollution fla...

Claims

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Application Information

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IPC IPC(8): C09D183/06C09D5/25C09D7/12
Inventor 刘玉明纪连勇张振
Owner TIANJIN DINGXUANKE IND TRADE
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