Hydrophobicity of tetraethyl-orthosilicate-derived silica coating at various concentrations

Mochamad Zainuri, W. Dini Putri, A. S. Bintoro

Research output: Contribution to journalConference articlepeer-review


Research on hydrophobic coating material with variations in the concentration of 1, 1.5, 2 and 2.5 % particles silicate to painting binder were successfully synthesized by the sol-gel method and with the basic ingredients Tetraethyl Orthosilicate (TEOS). Hydrophobic coatings based on Tetraethyl Orthosilicate (TEOS) are characterized using X-ray Diffraction (XRD), Scanning Electron Microscope (SEM), Fourier Transformed Infrared (FTIR), Atomic Force Microscope (AFM), Water Contact Angle (WCA) and Ultraviolet-Visible (UV-VIS). The results showed that Tetraethyl Orthosilicate (TEOS) silica particles had an amorphous structure with a smooth circular morphology and a particle diameter of 1μm. The effect of variations in the concentration of silica on the glass substrate of hydrophobic coating is the higher the concentration silica tends to be the decrease value of hydrophobicity and transmittance The highest value of hydropobicity occurs at a concentration of 1 % with a contact angle of 80o and transparency of 80%, This is best compared to higher silica concentrations for both hydropobicity and transparency parameters.

Original languageEnglish
Article number012021
JournalJournal of Physics: Conference Series
Issue number1
Publication statusPublished - 12 Jul 2021
Event1st International Symposium on Physics and Applications, ISPA 2020 - Surabaya, Virtual, Indonesia
Duration: 17 Dec 202018 Dec 2020


Dive into the research topics of 'Hydrophobicity of tetraethyl-orthosilicate-derived silica coating at various concentrations'. Together they form a unique fingerprint.

Cite this