Modification of the glass surface with hydrophobic silica thin layers using tetraethylorthosilicate (TEOS) and trimethylchlorosilane (TMCS) precursors

Adi Darmawan; Sabila Akhbar Rasyid; Yayuk Astuti

doi:10.1002/sia.6917

journal article Nov 25, 2020

Modification of the glass surface with hydrophobic silica thin layers using tetraethylorthosilicate (TEOS) and trimethylchlorosilane (TMCS) precursors

Adi Darmawan

Sabila Akhbar Rasyid Yayuk Astuti

Surface and Interface Analysis Vol. 53 No. 3 pp. 305-313 · Wiley

View at Publisher Save 10.1002/sia.6917

Abstract

The synthesis of the hydrophobic silica layer was conducted using the sol–gel method by reacting silica precursor trimethylchlorosilane (TMCS) and tetraethylorthosilicate (TEOS) with variations in the precursor composition ratio (TMCS:TEOS) of 10:90, 25:75, 50:50, 75:25, and 90:10 and then calcined at various temperatures. The TMCS‐TEOS silica thin layer has a significant influence on the surface hydrophobicity of the glass. The higher the number of TMCS precursors, the greater the contact angle produced. The highest contact angle produced was 98° at a TMCS‐TEOS ratio of 75:25 and without calcination. The TMCS‐TEOS silica thin layer contact angle decreased with increasing calcination temperature. The hydrophobicity of the TMCS‐TEOS silica thin layer could withstand temperatures up to 300°C. Quantitative analysis of FTIR spectra's peak area shows that with the increasing TMCS, the ratio of silanol/siloxane decreases. Gas sorption analysis shows that the TMCS‐TEOS thin layers' pore sizes are in the mesoporous region, and the pore shapes are cylindrical at all TMCS:TEOS ratios and calcination temperatures.

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Details

Published: Nov 25, 2020
Vol/Issue: 53(3)
Pages: 305-313
License: View

Authors

A

Adi Darmawan

Department of Chemistry Diponegoro University Semarang Indonesia

S

Sabila Akhbar Rasyid

Department of Chemistry Diponegoro University Semarang Indonesia

Y

Yayuk Astuti

Department of Chemistry Diponegoro University Semarang Indonesia

Funding

Kementerian Riset Teknologi Dan Pendidikan Tinggi Republik Indonesia Award: 257‐48/UN7.P4.3/PP/2019

Cite This Article

Adi Darmawan, Sabila Akhbar Rasyid, Yayuk Astuti (2020). Modification of the glass surface with hydrophobic silica thin layers using tetraethylorthosilicate (TEOS) and trimethylchlorosilane (TMCS) precursors. Surface and Interface Analysis, 53(3), 305-313. https://doi.org/10.1002/sia.6917

Modification of the glass surface with hydrophobic silica thin layers using tetraethylorthosilicate (TEOS) and trimethylchlorosilane (TMCS) precursors

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