SYNTHESIS AND PREPARATION OF HYDROPHOBIC SILICA NANO-COATINGS THROUGH SOL-GEL-DIPPING METHOD

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MOHAMMADZADEH H.; TORKIAN L.; DAGHIGHI ASLI M.

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Journal: Journal of Applied Research in Chemistry Year:2014 | Volume:8 | Issue:3 Page(s): 45-50

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Title

SYNTHESIS AND PREPARATION OF HYDROPHOBIC SILICA NANO-COATINGS THROUGH SOL-GEL-DIPPING METHOD

Author(s)

MOHAMMADZADEH H. | TORKIAN L. | DAGHIGHI ASLI M. | Issue Writer Certificate

Keywords

NANO-COATINGQ2

HYDROPHOBICQ2

DIPPINGQ2

SOL-GELQ1

SILICAQ1

Abstract

In this paper, a new method is described for the preparation of HYDROPHOBIC SILICA NANO-COATING on glass surfaces at room temperature, by applying tetrametoxysilane (TMOS) as a precursor and octadecyletrichlorosilane (OTS) as a surface modifier through a DIPPING method. By changing the mole ratio of OTS/TMOS, the efficiency of surface HYDROPHOBICity modifies with coating. The best coating performance was obtained for NH3, OTS, TMOS, and MeOH with mole ratio of 8: 1.4: 1: 14.8, respectively. The water contact angle by of the HYDROPHOBIC glass surface reaches to 132 degree. Nano coating particle sizes is estimated to 2-29 nm by the DLS method. Experimental results show that HYDROPHOBIC SILICA film retains its HYDROPHOBICity up to 200oC, but at higher temperatures loses this property. Besides determination of contact angle and particle size distribution, prepared nanoparticles are characterized by UV-Vis, FT-IR and TEM methods. Applying both TMOS and OTS and achieving water contact angle of 132 degree for modified glass surfaces are the novelties of this work.

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APA: Copy

MOHAMMADZADEH, H., TORKIAN, L., & DAGHIGHI ASLI, M.. (2014). SYNTHESIS AND PREPARATION OF HYDROPHOBIC SILICA NANO-COATINGS THROUGH SOL-GEL-DIPPING METHOD. JOURNAL OF APPLIED RESEARCHES IN CHEMISTRY (JARC), 8(3), 45-50. SID. https://sid.ir/paper/180048/en

Vancouver: Copy

MOHAMMADZADEH H., TORKIAN L., DAGHIGHI ASLI M.. SYNTHESIS AND PREPARATION OF HYDROPHOBIC SILICA NANO-COATINGS THROUGH SOL-GEL-DIPPING METHOD. JOURNAL OF APPLIED RESEARCHES IN CHEMISTRY (JARC)[Internet]. 2014;8(3):45-50. Available from: https://sid.ir/paper/180048/en

IEEE: Copy

H. MOHAMMADZADEH, L. TORKIAN, and M. DAGHIGHI ASLI, “SYNTHESIS AND PREPARATION OF HYDROPHOBIC SILICA NANO-COATINGS THROUGH SOL-GEL-DIPPING METHOD,” JOURNAL OF APPLIED RESEARCHES IN CHEMISTRY (JARC), vol. 8, no. 3, pp. 45–50, 2014, [Online]. Available: https://sid.ir/paper/180048/en

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