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Characterisation of Hydrolysed Alkoxysilanes and Zirconiumalkoxides for the Development of UV-Curable Scratch Resistant Coatings

Published online by Cambridge University Press:  25 February 2011

K. Greiwe ,
W. Glaubitt ,
S. Amberg-Schwab  and
K. Piana
K. Greiwe
Affiliation:
Fraunhofer-Institut für Silicatforschung, Neunerplatz 2, D-8700 Würzburg, Federal Republic of Germany
W. Glaubitt
Affiliation:
Fraunhofer-Institut für Silicatforschung, Neunerplatz 2, D-8700 Würzburg, Federal Republic of Germany
S. Amberg-Schwab
Affiliation:
Fraunhofer-Institut für Silicatforschung, Neunerplatz 2, D-8700 Würzburg, Federal Republic of Germany
K. Piana
Affiliation:
Fraunhofer-Institut für Silicatforschung, Neunerplatz 2, D-8700 Würzburg, Federal Republic of Germany
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Abstract

The development of a new scratch resistant UV-curable coating system is described. The material can be applied to optical data discs by spin coating. The coating shows superior adhesion even without priming and good weathering performance especially on polycarbonate.

The material is prepared from Zr(OPr)4 and 3-Methacryloxi-propyltrialkoxysilanes via sol-gel processing. Complexation of Zr(OPr)4 with methacrylic acid yields complexes which can be copolymlrized with the prehydrolyzed silane. The hydrolysis and self-condensation of the trialkoxysilanes were studied under different conditions. The consumption of water was studied by Karl-Fischer titration and the formation of oligomeric and polymeric species by GPC-measurements.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 271: Symposium N – Better Ceramics Through Chemistry V , 1992 , 725
Copyright
Copyright © Materials Research Society 1992

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References

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