Transparent self-cleaning coating of modified polydimethylsiloxane (PDMS) for real outdoor application

Syafiq, A. and Vengadaesvaran, Balakrishnan and Rahim, Nasrudin Abd and Pandey, Adarsh Kumar and Bushroa, Abdul Razak and Ramesh, Kasi and Ramesh, Subramaniam (2019) Transparent self-cleaning coating of modified polydimethylsiloxane (PDMS) for real outdoor application. Progress in Organic Coatings, 131. pp. 232-239. ISSN 0300-9440, DOI

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Hydrophobic coating usually possesses a water contact angle (CA) of more than 90°. The fabrication of hydrophobic coating on the glass substrate has high potential to induce self-cleaning properties, anti-fogging and mud-repellent properties. In this study, a transparent hydrophobic self-cleaning coating with modified Polydimethylsiloxane (PDMS) has been successfully developed using 3-aminopropyltriethoxyslane (APTES). APTES has a flexible amino group for silica structuration of Polydimethylsiloxane to cross-link and form a hybrid coating system. The hydrophobic coating developed is applied onto glass plates using dip-coating method. The hydrophobicity of the coating is tested using the water contact angle (WCA) method and achieved WCA as high as 103.9°. The UV-VIS spectrometer measurement reveals that the transparency of the modified APTES/ PDMS coating is above 90% in visible region. The prepared hybrid coating also exhibits excellent self-cleaning properties in indoor and outdoor environment. In addition to that, the hybrid coating also exhibits great anti-fogging behavior where the tiny water droplets on the coated surface completely disappear after 6 min at ambient temperature. © 2019 Elsevier B.V.

Item Type: Article
Funders: UM Power Energy Dedicated Advanced Centre (UMPEDAC) and the Higher Institution Centre of Excellence (HICoE) Program Research Grant, UMPEDAC - 2016 (MOHE HICOE - UMPEDAC)
Uncontrolled Keywords: PDMS: APTES; GLYMO; Hydrophobic; Self-cleaning; Anti –fog
Subjects: Q Science > QC Physics
T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Faculty of Engineering
Faculty of Science > Department of Physics
Deputy Vice Chancellor (Research & Innovation) Office > UM Power Energy Dedicated Advanced Centre
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 08 Jan 2020 07:24
Last Modified: 08 Jan 2020 07:24

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