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Nanoscaled Filled Sol-Gel Hybrid Materials for Powder Coatings

Published online by Cambridge University Press:  10 February 2011

S Seneur ,
C. Dutfurth ,
J. Muhle ,
A. Poppe  and
H. Schmidt
S Seneur
Affiliation:
Institut für Neuc Materialien, Im Stadtwald, Geb. 43, D-66123 Saarbrücken, Germany
C. Dutfurth
Affiliation:
Institut für Neuc Materialien, Im Stadtwald, Geb. 43, D-66123 Saarbrücken, Germany
J. Muhle
Affiliation:
Institut für Neuc Materialien, Im Stadtwald, Geb. 43, D-66123 Saarbrücken, Germany
A. Poppe
Affiliation:
Institut für Neuc Materialien, Im Stadtwald, Geb. 43, D-66123 Saarbrücken, Germany
H. Schmidt
Affiliation:
Institut für Neuc Materialien, Im Stadtwald, Geb. 43, D-66123 Saarbrücken, Germany
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Abstract

The sol-gel process has been applied for the synthesis of inorganic-organic powder materials. For this purpose, low reactivity and, for reasons of comparison, nanoscaled sol-gel precursors and nanoscaled silica filler were used to synthesize a low molecular weight inorganic-organic composite which was meltable between 85°C and 100°C and curable at temperatures of 150°C - 200°C. The powders were used for electrostatic coating of aluminum sheets. The resulting coatings of the unfilled system exhibited excellent mechanical properties, e. g. a high abrasion resistance (weight losses between 6 mg and 10 mg per 1000 cycles by taber abrader test (ASTM D1044)) and high values for hardness (universal hardness (DIN 55676): 150 N/mm2). The hardness of the materials was increased up to 210 N/mm2 by the addition of silica, while the abrasion resistance remained unaffected.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 576: Symposium DD – Organic/Inorganic Hybrid Materials II , 1999 , 325
Copyright
Copyright © Materials Research Society 1999

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References

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