Properties of Sol-Gel Coating Film Synthesized from Nano Boehmite and Methyltrimethoxysilane

Abstract:

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Several sol solutions were synthesized by using two kinds of nanosized boehmite and methyltrimethoxysilane (MTMS) according to the changing amount of MTMS at different reaction time. To understand their physical and chemical properties, sol-gel coating films were fabricated on glass. The sol solutions were prepared from boehmite of spherical shape (boehmite1)/MTMS and mixed boehmites of spherical and fibrous shapes (boehmite2)/MTMS. The soluble stability of boehmite1/MTMS was observed in the sol solution left for 24 h, however, that of boehmite2/MTMS was observed in the sol solution left for 48 h. The contact angle of sol-gel coating films from boehmite/MTMS increased with MTMS contents and reaction time. The films formed a flat surface with the increasing MTMS contents and decreasing reaction time. The electrical resistivity of films increased with MTMS contents. The thermal degradation of films occurred at approximately 400 oC.

Info:

Periodical:

Materials Science Forum (Volumes 544-545)

Edited by:

Hyungsun Kim, Junichi Hojo and Soo Wohn Lee

Pages:

1041-1044

DOI:

10.4028/www.scientific.net/MSF.544-545.1041

Citation:

I. H. Myung et al., "Properties of Sol-Gel Coating Film Synthesized from Nano Boehmite and Methyltrimethoxysilane", Materials Science Forum, Vols. 544-545, pp. 1041-1044, 2007

Online since:

May 2007

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$35.00

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