The Influence of Silica Nanoparticle-Based Modifying Agent on the Application of Hydrophobic Coatings

Authors

• Ali Jasim, Materials Engineering Department, University of Technology-Iraq, Alsina’a Street, P.O Box 10066 Baghdad, Iraq.
• Mayyadah Abed, Department of Materials Engineering, University of Technology, P.O. Box 10066, Baghdad, IraqFollow
• Khalid Abbas, Materials Engineering Department, University of Technology-Iraq, Alsina’a Street, P.O Box 10066 Baghdad, Iraq.Follow

Document Type

Research Paper

Abstract

This works aims to investigate the influence of three different categories of silica, namely, precipitated silica, fumed silica and nanosilica prepared via sol-gel process, for hydrophobic application in this work. Nanosilica was characterised using scanning electron microscopy, Fourier transform infrared spectroscopy, particle size and zeta potential. Diluted silicone rubber (room-temperature vulcanising silicone) was also used as a matrix for these particles as (3/1) weight%; silicone rubber/silica. Cold spraying technique was applied to coat glass substrates. Fourier transform infrared analysis was applied to investigate the coating. SEM observation and particle size analysis established that the nanosize of silica is used with narrow-size distribution. Zeta potential analysis demonstrated the stability of nanoparticles at recorded average values of −41 to −50 mV. Wettability results showed that all types of silica incorporated into the silicone rubber present a hydrophobic surface. The maximum recorded value of contact angle was 146° for sol-gel-prepared silica/silicone rubber. The out findings indicated that these compounds are acceptable candidates for hydrophobic glass applications.

Recommended Citation

Jasim, Ali; Abed, Mayyadah; and Abbas, Khalid () "The Influence of Silica Nanoparticle-Based Modifying Agent on the Application of Hydrophobic Coatings," Engineering and Technology Journal: Vol. 39: Iss. 11, Article 14.
DOI: https://doi.org/10.30684/etj.v39i11.2284

DOI

10.30684/etj.v39i11.2284

First Page

1727

Last Page

1733