Journal
PROGRESS IN ORGANIC COATINGS
Volume 131, Issue -, Pages 232-239Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.porgcoat.2019.02.020
Keywords
PDMS: APTES; GLYMO; Hydrophobic; Self-cleaning; Anti-fog
Funding
- UM Power Energy Dedicated Advanced Centre (UMPEDAC)
- Higher Institution Centre of Excellence (HICoE) Program Research Grant, UMPEDAC - 2016 (MOHE HICOE - UMPEDAC)
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Hydrophobic coating usually possesses a water contact angle (CA) of more than 90 degrees. 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 degrees. 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.
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