Novel fluoro-silicone coating preventing pollution flashover and a preparing method thereof

An anti-pollution flashover coating and fluorosilicon technology, applied in the coating field, can solve the problem that the anti-pollution flashover coating cannot meet the needs of the power system, etc., and achieve the effects of excellent hydrophobic migration, easy drying and easy molding.

An anti-pollution flashover coating and fluorosilicon technology, applied in the coating field, can solve the problem that the anti-pollution flashover coating cannot meet the needs of the power system, etc., and achieve the effects of excellent hydrophobic migration, easy drying and easy molding.

CN108948937AInactive Publication Date: 2018-12-07赵永锋
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  • Novel fluoro-silicone coating preventing pollution flashover and a preparing method thereof
  • Novel fluoro-silicone coating preventing pollution flashover and a preparing method thereof
  • Novel fluoro-silicone coating preventing pollution flashover and a preparing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The fluorosilicone antifouling flashover coating of the present embodiment comprises the following components in parts by weight: 25 parts of tetrafluoropropyl methacrylate, 5 parts of hydroxyethyl methacrylate, 2 parts of butyl methacrylate, 1 part of methyl acrylate, 1 part of isooctyl methacrylate, 10 parts of vinyltriethoxysilane, 5 parts of γ-methacryloxypropyl trimethoxysilane, 5 parts of heptamethyltrisiloxane parts, 4 parts of polydimethylsiloxane, 4 parts of hydroxyl silicone oil, 0.6 parts of azobisisobutyronitrile, and 20 parts of dimethyl carbonate.

[0034] The fluorosilicone antifouling flashover coating of the present embodiment is prepared by the following method:

[0035]Under normal temperature conditions, add acrylate monomer, silane coupling agent, polysiloxane, 2 / 3 weight initiator and solvent, blow nitrogen for 30 minutes to remove the oxygen in the system; continue to blow nitrogen, then raise the temperature of the oil bath to 80±2°C, stir and r...

Embodiment 2

[0037] The fluorosilicone antifouling flashover coating of this embodiment comprises the following components in parts by weight: 10 parts of tetrafluoropropyl methacrylate, 30 parts of octafluoropentyl methacrylate, and 5 parts of hydroxyethyl methacrylate , 5 parts of butyl methacrylate, 10 parts of methyl methacrylate, 10 parts of isooctyl methacrylate, 28 parts of vinyl triethoxysilane, 4 parts of γ-methacryloxypropyl trimethoxysilane 8 parts, 8 parts of heptamethyltrisiloxane, 4 parts of polydimethylsiloxane, 6 parts of hydroxyl silicone oil, 1.2 parts of methyl ethyl ketone peroxide, and 30 parts of acetone.

[0038] The preparation method of the fluorosilicone antifouling flashover coating of this embodiment is the same as that of Embodiment 1.

Embodiment 3

[0040] The fluorosilicone antifouling flashover coating of the present embodiment comprises the following components in parts by weight: 10 parts of dodecafluoroheptyl methacrylate, 20 parts of hydroxyethyl methacrylate, 5 parts of butyl methacrylate, 5 parts of methyl methacrylate, 10 parts of isooctyl methacrylate, 15 parts of vinyltriethoxysilane, 2 parts of γ-methacryloxypropyl trimethoxysilane, heptamethyltrisiloxane 3 parts, 2 parts of polydimethylsiloxane, 0.2 parts of lauroyl peroxide, 10 parts of ethyl acetate.

[0041] The preparation method of the fluorosilicone antifouling flashover coating of this embodiment is the same as that of Embodiment 1.

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Abstract

Novel fluoro-silicone coating preventing pollution flashover is disclosed. The coating includes, by weight, 10-80 parts of a fluorinated acrylate monomer, 9-60 parts of an acrylate monomer, 7-43 partsof a silane coupling agent, 2-23 parts of polysiloxane, 0.2-1.8 parts of an initiator and 1-80 parts of a solvent. The coating has excellent hydrophobicity, hydrophobic mobility, weather fastness, chemical resistance, ageing resistance, self-cleaning performance, electric performance, tear strength, shearing strength, and flame retardant performance, and is suitable for an electrical power system. A preparing method disclosed is high in manufacturability, and material and object surfaces can be coated with the coating prepared by the method in dip-coating, spread-coating and spraying mannersand the like. The coating prepared is easy to dry, easy to shape, easy to clean and capable of repeated coating, and the drying time at room temperature is not longer than 10 min. The coating has advantages of simple construction process and easy operation and is safe and environmentally friendly.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a novel fluorosilicon antifouling flashover coating and a preparation method thereof. Background technique [0002] Pollution flashover refers to the phenomenon that the soluble substances of the dirt attached to the insulating surface of electrical equipment gradually dissolve in water under humid conditions, forming a conductive film on the insulating surface, which greatly reduces the insulation level of the insulator, and occurs under the action of an electric field. Strong discharge phenomenon. [0003] For example, during December 27-30, 1996, a rare heavy fog appeared in East China, and 11 of the 23 500kV lines in the East China Power Grid had flashovers and 77 trips; 24 of the 220kV lines had flashovers and 58 trips. In December 1996, 8 of the 35 220kV lines in Anhui Province had pollution flashover accidents and tripped 35 times; 2 of the 8 500kV lines had flashover ac...

Claims

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Application Information

Patent Timeline
07 Dec 2018
Publication
CN108948937A
IPC
C09D151/08; C09D183/04; C09D5/18; C09D5/16; C09D7/20; C09D183/08
CPC
C08L2201/02; C08L2205/02; C09D5/1675; C09D5/18; C09D7/20; C09D151/085; C09D183/08; C08L83/04
Inventors
赵永锋