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RTV anti-pollution flashover coating suitable for automatic dip-coating of insulator and preparation method of RTV anti-pollution flashover coating

A technology of anti-pollution flashover coatings and insulators, applied in antifouling/underwater coatings, fireproof coatings, coatings, etc., can solve the problems of increased pressure on safety and environmental protection, low viscosity and solid content, large solvent volatilization, etc., to achieve Low VOC emission, high solid content, high viscosity effect

Inactive Publication Date: 2015-06-03
CHENGDU TALY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing RTV anti-fouling flashover coatings are mainly developed to adapt to the spraying method. The coating has the characteristics of relatively low viscosity and solid content, high organic solvent volatile content, and fast volatilization speed. If it is used in In the newly developed dip-coating process of RTV coatings, the existing RTV anti-fouling flashover coatings often require multiple dippings during construction, resulting in low efficiency, large solvent volatilization, and pressure on safety and environmental protection during construction. Therefore, the market urgently needs to develop a special RTV anti-pollution flashover coating that meets the requirements of the factory coating RTV anti-fouling flashover coating dipping process.

Method used

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  • RTV anti-pollution flashover coating suitable for automatic dip-coating of insulator and preparation method of RTV anti-pollution flashover coating
  • RTV anti-pollution flashover coating suitable for automatic dip-coating of insulator and preparation method of RTV anti-pollution flashover coating
  • RTV anti-pollution flashover coating suitable for automatic dip-coating of insulator and preparation method of RTV anti-pollution flashover coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] A kind of RTV anti-pollution flashover coating that is applicable to insulator automatic dip coating, consists of the following components (parts by weight):

[0065] α,ω-Dihydroxypolydimethylsiloxane 45 parts,

[0066] 8 parts of simethicone oil,

[0067] Reinforced fumed white carbon black 15 parts,

[0068] 20 parts of aluminum hydroxide,

[0069] Brominated flame retardant 12 parts,

[0070] 3 parts of crosslinking agent,

[0071] 0.8 part of siloxane coupling agent,

[0072] 0.04 part of vulcanization accelerator,

[0073] 4 parts of paint,

[0074] 28 parts of solvent naphtha.

[0075] Put 45 parts of α, ω-dihydroxy polydimethylsiloxane and 8 parts of dimethyl silicone oil into a biaxial kneader, stir and knead for 10-25 minutes, then add 15 parts of reinforcing fumed silica, and knead again 10-50 minutes, finally add 20 parts of aluminum hydroxide and 12 parts of brominated flame retardant, and knead for 10-40 minutes to obtain the base rubber; put the ba...

Embodiment 2

[0077] A kind of RTV anti-pollution flashover coating that is applicable to insulator automatic dip coating, consists of the following components (parts by weight):

[0078] 45 parts of α,ω-dialkoxy polydimethylsiloxane,

[0079] 7 parts of simethicone oil,

[0080] Reinforced fumed white carbon black 16 parts,

[0081] 20 parts of aluminum hydroxide,

[0082] Brominated flame retardant 12 parts,

[0083] 3 parts of crosslinking agent,

[0084] 0.8 part of siloxane coupling agent,

[0085] 0.05 part of vulcanization accelerator,

[0086] 3 parts of paint,

[0087] 35 parts of solvent naphtha.

[0088] Its preparation method is with embodiment one.

Embodiment 3

[0090] A kind of RTV anti-pollution flashover coating that is applicable to insulator automatic dip coating, consists of the following components (parts by weight):

[0091] α,ω-Dihydroxypolydimethylsiloxane 55 parts,

[0092] 8 parts of simethicone oil,

[0093] Reinforced fumed white carbon black 15 parts,

[0094] 10 parts of aluminum hydroxide,

[0095] Brominated flame retardant 12 parts,

[0096] 4 parts of cross-linking agent,

[0097] 0.8 part of siloxane coupling agent,

[0098] 0.04 part of vulcanization accelerator,

[0099] 3 parts of paint,

[0100] 30 parts of solvent naphtha.

[0101] Its preparation method is with embodiment one.

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Abstract

The invention relates to the technical field of organic silicon coatings, and particularly relates to an RTV anti-pollution flashover coating suitable for automatic dip-coating of an insulator and a preparation method of the RTV anti-pollution flashover coating. The RTV anti-pollution flashover coating comprises the following components in parts by weight: 40-60 parts of an active polydimethylsiloxane mixture, 5-10 parts of a hydrophobic transferring aid, 8-30 parts of reinforcing gas-phase-method white carbon black, 15-32 parts of fire retarding filler, 3-8 parts of a crosslinking agent, 0.5-5 parts of a tackifier, 0.01-1.0 part of a sulfurization accelerator, 0.1-5 parts of a pigment and 15-35 parts of solvent oil. The preparation method of the RTV anti-pollution flashover coating comprises the following steps: (1) kneading; (2) grinding; (3) drying; (4) cooling; (5) mixing, and finally packaging to obtain a finished product. The RTV anti-pollution flashover coating disclosed by the invention has the service characteristics of a common RTV anti-pollution flashover coating and also has higher viscosity, higher solid content, suitable surface drying speed and better foam self-discharging speed, so that the RTV anti-pollution flashover coating can satisfy the coating requirements of an automatic dip-coating technique of ceramics and glass insulators.

Description

technical field [0001] The invention belongs to the technical field of organosilicon coatings, relates to an RTV anti-pollution flashover coating suitable for automatic dip coating of insulators and a preparation method thereof, and belongs to the technical field of coatings for power transmission and transformation equipment in power systems. Background technique [0002] Coating insulators with RTV anti-pollution flashover paint is one of the effective and easy-to-implement effective measures to prevent pollution flashover accidents in power transmission and transformation lines. Since the trial operation in 1986, my country has started to use the RTV anti-pollution flashover coating on a large scale in the power grid. Although it has achieved relatively good results, the usual construction method so far is to install it on the line or substation after the insulator is installed. On-site manual spraying or brushing of RTV paint, this construction method is often subject to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D183/06C09D183/04C09D5/18C09D5/16C09D5/25C09D7/12
Inventor 张先银葛宝陈群跃方辉陶云峰
Owner CHENGDU TALY TECH CO LTD
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