Preparation and Super-Hydrophobic Mechanism Analysis of FAS-17-Modified SiO2/PDMS Coatings for High-Voltage Composite Insulators
Source abstract
Abstract
Pollution flashover on insulators is one of the greatest challenges affecting the smooth operation of high-voltage transmission lines. Demonstrating super-hydrophobic coatings on insulators’ interfaces is an effective measure to prevent insulator flashovers. In the present investigation, a super-hydrophobic FAS-17-modified SiO2/PDMS coating on a composite insulator was demonstrated by spraying. The coating had a contact angle of 159.2° and a sliding angle of 1.3° with better insulation properties. The prepared FAS-17-modified nano-SiO2 nanoparticles were not easy to agglomerate; to illustrate this, the binding energy was calculated by the density functional theory. The super-hydrophobic mechanism of the coating was explained in terms of the adsorption energy between SiO2 molecules and water before and after modification. This paper provides a new method to solve the pollution flashover problem of insulators and a new angle to explain the super-hydrophobic mechanism.
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Research context
OpenAlex topics: High voltage insulation and dielectric phenomena · Surface Modification and Superhydrophobicity · Aerosol Filtration and Electrostatic Precipitation
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Chemistry and Chemical Engineering, Southeast University, Nanjing 210096, China
Jiangsu Frontier Electric Technology Co., Ltd., Nanjing 210000, China
Shanghai Electro-Mechanical Engineering Institute, Shanghai 201109, China
Funding
Jiangsu Frontier Electric Power Enterprise Fund project
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