High-self-cleaning super-smooth anti-pollution flashover coating and preparation method thereof

An anti-fouling flashover coating, self-cleaning technology, applied in the direction of anti-corrosion coatings, coatings, etc., can solve the problems of loss of superhydrophobicity, coating failure, loss of low surface energy, etc., to achieve good chemical corrosion resistance and corrosion resistance Aging resistance, good anti-icing performance, easy spraying effect

Inactive Publication Date: 2021-08-27
武汉露能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the micro-nano-scale rough porous structure of the super-hydrophobic coating, the coating stability is poor, especially after experiencing external rain erosion, wind erosion, sand erosion and ice coating, the microscopic rough structure is easily destroyed, and the surface energy is low. will also be lost, at which point the coating will fail
Most superhydrophobic coatings lose their superhydrophobicity after 3 to 6 months of outdoor operation, and even gradually fail to become hydrophilic, resulting in the loss of anti-pollution flashover properties of coated insulators

Method used

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  • High-self-cleaning super-smooth anti-pollution flashover coating and preparation method thereof
  • High-self-cleaning super-smooth anti-pollution flashover coating and preparation method thereof
  • High-self-cleaning super-smooth anti-pollution flashover coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A kind of high self-cleaning super-slippery antifouling flashover paint, by hydroxyl silicone oil (lubricating oil), methyl silicone oil (lubricating oil), small molecular silicone oil (lubricating oil), fluorocarbon resin, butyl acetate (solvent), hydrophobic SiO 2, polytetrafluoroethylene PTFE, perfluorodecyltrimethoxysilane (silane coupling agent), the mass percentage of each raw material is: hydroxy silicone oil (lubricating oil) 3.6%, methyl silicone oil (lubricating oil) 3.6% %, small molecule silicone oil (lubricating oil) 3.6%, fluorocarbon resin 12.6%, butyl acetate (solvent) 71.9%, hydrophobic SiO 2 1.8%, polytetrafluoroethylene PTFE 1.8%, perfluorodecyltrimethoxysilane (silane coupling agent) 1.1%. The small molecule silicone oil refers to silicone oil with a viscosity lower than 150cst.

[0030] According to the above technical scheme, the hydrophobic SiO 2 The preparation method is: according to SiO 2 , alcohol aqueous solution (the mass ratio of alcohol...

Embodiment 2

[0038] A kind of high self-cleaning type ultra-slip antifouling flashover paint, by hydroxyl silicone oil (lubricating oil), methyl silicone oil (lubricating oil), fluorocarbon resin, ethyl acetate (solvent), butyl acetate (solvent), hydrophobic SiO 2 , polytetrafluoroethylene PTFE, perfluorodecyltrimethoxysilane (silane coupling agent), and the mass percentages of each raw material are: hydroxyl silicone oil (lubricating oil) 3.1%, methyl silicone oil (lubricating oil) 3.86% %, fluorocarbon resin 11.6%, ethyl acetate (solvent) 38.6%, butyl acetate (solvent) 38.6%, hydrophobic SiO 2 1.54%, polytetrafluoroethylene PTFE 1.93%, perfluorodecyltrimethoxysilane (silane coupling agent) 0.77%.

[0039] According to the above technical scheme, the hydrophobic SiO 2 The preparation method is: according to SiO 2 , alcohol aqueous solution (the mass ratio of alcohol to water is 2:1), and the mass percentages of the raw materials of silane coupling agent are: SiO 2 5%, alcohol aqueous s...

Embodiment 3

[0047] A kind of high self-cleaning super-slippery antifouling flashover paint, by hydroxyl silicone oil (lubricating oil), small molecular silicone oil (lubricating oil), fluorocarbon resin, xylene (solvent), butyl acetate (solvent), hydrophobic SiO 2 , polytetrafluoroethylene PTFE, and silane coupling agent, the mass percentage of each raw material is: hydroxyl silicone oil (lubricating oil) 9.34%, small molecule silicone oil (lubricating oil) 1.9%, fluorocarbon resin 11.24%, xylene (solvent) 22.47%, butyl acetate (solvent) 48.69%, hydrophobic SiO 2 3%, polytetrafluoroethylene 2.25%, silane coupling agent 1.11%.

[0048] The small molecule silicone oil refers to silicone oil with a viscosity lower than 150cst.

[0049] The hydrophobic SiO 2 The preparation method is: according to SiO 2 , alcohol aqueous solution (the mass ratio of alcohol to water is 3:1), and the mass percentages of the raw materials of silane coupling agent are: SiO 2 4%, alcohol aqueous solution 95%, ...

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Abstract

The invention belongs to the technical field of coatings, and particularly relates to a high-self-cleaning super-smooth anti-pollution flashover coating and a preparation method thereof. The high- self-cleaning type super-smooth anti-pollution flashover coating is characterized by being prepared from the following raw materials in percentage by mass: 4 to 12 percent of lubricating oil, 10 to 15 percent of fluorocarbon resin, 68 to 80 percent of a solvent, 1 to 6 percent of hydrophobic SiO2, 1 to 5 percent of polytetrafluoroethylene (PTFE) and 0.2 to 1.5 percent of a silane coupling agent. A coating layer formed by spraying the paint through an aerosol can has good self-cleaning property, super-smoothness, pollution flashover resistance and icing resistance; and good corrosion resistance and aging resistance are achieved.

Description

technical field [0001] The invention belongs to the technical field of coatings, and in particular relates to a high self-cleaning super-slip antifouling flashover coating and a preparation method thereof. Background technique [0002] Transmission line insulators are prone to pollution flashover in the presence of dirt, or ice flashover in icy environments, seriously affecting the safe operation of transmission lines, and causing serious economic losses every year due to insulator pollution flashover and ice flashover. It has brought huge troubles to the power industry. At present, room temperature vulcanized silicone rubber RTV coatings are used to coat insulators, but the anti-pollution flashover and anti-ice flashover effects of RTV are not ideal, and pollution flashover and ice flashover events still occur frequently. The cause of the flashover event is that the RTV coating is easy to accumulate dirt after long-term operation, and the dirt remains on the surface of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D127/12C09D127/18C09D183/04C09D7/62C09D7/63C09D5/08
CPCC09D127/12C09D7/62C09D7/63C09D5/08C08L2205/035C08L2205/025C08L27/18C08L83/04C08K9/06C08K3/36C08K5/5419
Inventor 张治东王先宝
Owner 武汉露能科技有限公司
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