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Characterization of silane-modified ZrO2 powder surfaces

✍ Scribed by Turner, M. R.; Duguet, E.; Labrug�re, C.

Publisher
John Wiley and Sons
Year
1997
Tongue
English
Weight
424 KB
Volume
25
Category
Article
ISSN
0142-2421

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✦ Synopsis

Polymerizable organic silane molecules such as 3-(trimethoxysilyl)propylmethacrylate (c-MPS) have been grafted onto the surface of powders, via hydroxyl groups, to obtain hybrid "macromonomersÏ. A combination of ZrO 2 x-ray photoelectron spectroscopy (XPS), Fourier transform infrared (FTIR) spectroscopy and 29Si nuclear magnetic resonance (NMR) spectroscopy have been employed to study the interaction between organic silane molecules and the surface of the powders. The core-level XPS regions, and have been studied to ZrO 2 Zr 3d , O 1s , C 1s Si 2p , determine the nature of chemical bonding between the organic grafted monomer and inorganic phase and correlated with NMR results. Based upon the results obtained, it is proposed that grafting results in c-MPS bonded to the powder surface via Zr-O-Si bonds accompanied by interlinkage of c-MPS molecules through Si-O-Si ZrO 2 bonding.

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