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Performance investigation on different designs of superhydrophobic surface texture for composite insulator

Performance investigation on different designs of superhydrophobic surface texture for composite insulator
Performance investigation on different designs of superhydrophobic surface texture for composite insulator

To investigate the superhydrophobic properties of different surface textures, nine designs of textures with micro-nanostructures were produced successfully using the laser engraving technique on the surfaces of composite insulator umbrella skirt samples made of silicon rubber. The optimal parameters of the texture designs to give rise to the best hydrophobicity were determined. The surface morphology, abrasion resistance, corrosion resistance, self-cleaning and antifouling property of the different textured surfaces as well as water droplets rolling on the textured surfaces were studied experimentally using a contact angle meter, scanning electron microscope, three-dimensional topography meter and high-speed camera system. It was found that the diamond column design with optimal parameters has the best superhydrophobicity and overall performance. The most remarkable advantage of the optimal diamond column design is its robustness and long-term superhydrophobicity after repeated de-icing in harsh conditions. The reported work is an important step towards achieving superhydrophobic surface without coating for outdoor composite insulator in practical applications.

Abrasion resistance, Composite insulator, Silicon rubber, Superhydrophobic surface, Textured surface
Zhao, Meiyun
8cef0c80-dbe1-48d7-8500-253fe917f0c6
Li, Wei
ab5e097b-b347-4edf-95dd-2b245edf0f81
Wu, Yang
c619644e-5680-4c2d-9922-5b6f9fc2d1ac
Zhao, Xinze
c7fed857-ec5d-4ae3-96b8-651b4d5b6161
Tan, Mingyi
4d02e6ad-7915-491c-99cc-a1c85348267c
Xing, Jingtang
9d49e8f0-35dc-4ab1-9101-c9431410b058
Zhao, Meiyun
8cef0c80-dbe1-48d7-8500-253fe917f0c6
Li, Wei
ab5e097b-b347-4edf-95dd-2b245edf0f81
Wu, Yang
c619644e-5680-4c2d-9922-5b6f9fc2d1ac
Zhao, Xinze
c7fed857-ec5d-4ae3-96b8-651b4d5b6161
Tan, Mingyi
4d02e6ad-7915-491c-99cc-a1c85348267c
Xing, Jingtang
9d49e8f0-35dc-4ab1-9101-c9431410b058

Zhao, Meiyun, Li, Wei, Wu, Yang, Zhao, Xinze, Tan, Mingyi and Xing, Jingtang (2019) Performance investigation on different designs of superhydrophobic surface texture for composite insulator. Materials, 12 (7), [1164]. (doi:10.3390/ma12071164).

Record type: Article

Abstract

To investigate the superhydrophobic properties of different surface textures, nine designs of textures with micro-nanostructures were produced successfully using the laser engraving technique on the surfaces of composite insulator umbrella skirt samples made of silicon rubber. The optimal parameters of the texture designs to give rise to the best hydrophobicity were determined. The surface morphology, abrasion resistance, corrosion resistance, self-cleaning and antifouling property of the different textured surfaces as well as water droplets rolling on the textured surfaces were studied experimentally using a contact angle meter, scanning electron microscope, three-dimensional topography meter and high-speed camera system. It was found that the diamond column design with optimal parameters has the best superhydrophobicity and overall performance. The most remarkable advantage of the optimal diamond column design is its robustness and long-term superhydrophobicity after repeated de-icing in harsh conditions. The reported work is an important step towards achieving superhydrophobic surface without coating for outdoor composite insulator in practical applications.

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More information

Accepted/In Press date: 5 April 2019
e-pub ahead of print date: 10 April 2019
Keywords: Abrasion resistance, Composite insulator, Silicon rubber, Superhydrophobic surface, Textured surface

Identifiers

Local EPrints ID: 431674
URI: http://eprints.soton.ac.uk/id/eprint/431674
PURE UUID: 0a972eaa-20e2-4ed7-8aec-1e6ae5c3a04e

Catalogue record

Date deposited: 13 Jun 2019 16:30
Last modified: 07 Oct 2020 01:00

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