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Journal of Coatings Technology and Research
Erschienen in: Journal of Coatings Technology and Research 1/2008

01.03.2008

Chemical and anticorrosion characterization of polysilsesquioxane coatings catalyzed by different acids

verfasst von: Wentao Xing, Bo You, Limin Wu

Erschienen in: Journal of Coatings Technology and Research | Ausgabe 1/2008

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Abstract

The polysilsesquioxane coatings were synthesized via the sol–gel reaction of methyltriethoxysilane (MTES), 3-glycidoxypropyltrimethoxysilane (GPMS), and tetraethoxysilane (TEOS) using different kinds of acid such as phytic acid, 1-hydroxyethylidene-1,1-diphosphonic acid, tannic acid, and hydrochloric acid as the catalysts, and investigated by 13C NMR, 29Si NMR, SEM, electrochemical techniques, and salt-spray test, respectively. It was found that four different acid-catalyzed polysilsesquioxanes were mainly composed of T2 and T3 structure, but different acids caused some differences in reaction mechanism and the relative ratio of T2 to T3 structure. The catalysis of phytic acid caused more complete polysilsesquioxanes, which had much better corrosion resistant performance than the other three acids-catalyzed polysilsesquioxanes.
Vorheriger Artikel New waterborne acrylic binders for zero VOC paints
Nächster Artikel Synthesis of gold pearlescent pigment via heat treatment of mica

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Metadaten
Titel
Chemical and anticorrosion characterization of polysilsesquioxane coatings catalyzed by different acids
verfasst von
Wentao Xing
Bo You
Limin Wu
Publikationsdatum
01.03.2008
Verlag
Springer US
Erschienen in
Journal of Coatings Technology and Research / Ausgabe 1/2008
Print ISSN: 1547-0091
Elektronische ISSN: 1935-3804
DOI
https://doi.org/10.1007/s11998-007-9076-2

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