TITLE:
Development of Modified Glasses by Transparent, Functional Hybrid Sol-Gel Nano-Ceramic Coatings, a Comparative Study
AUTHORS:
Md. Barkat Ullah, Yeasmin Akter, Khodeja Afrin, Md. Saiful Quddus
KEYWORDS:
Sol-Gel, Nano-Ceramic Coatings, Self-Cleaning Glass, Water Contact Angle, Optical Transmission
JOURNAL NAME:
World Journal of Engineering and Technology,
Vol.12 No.1,
February
22,
2024
ABSTRACT: This
paper concentrates on the development of glasses with self-cleaning surfaces
exhibiting high water contact angles. In this study, we prepared
super-hydrophobic nano-ceramic coated glass based on titania & silica
using simple sol-gel & dip coating methods and studied the best composition
of the coatings by altering ratios of titanium tetraisopropoxide
(TTIP)/tetraethyl orthosilicate (TEOS) with
different homogenizing agents. We
characterized the coatings by surface roughness measurement, percentage of
optical transmission, static contact angle, near-infrared (NIR) transmission,
and diffuse reflectance. The fabrication of coatings on glass substrates played
an important role in increasing the water contact angle of about 95° and
visible & NIR transmission of about 90%. We compared our modified glass
substrate with commercial low emissivity (Low E) glass using X-ray diffraction
(XRD) analysis, which showed pure amorphous surface claiming
excellent wettability and thus the prepared glass substrate could have a
variety of applications in different fields.