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Tailoring of Thermomechanical Properties of Thermoplastic Nanocomposites by Surface Modification of Nanoscale Silica Particles

Published online by Cambridge University Press:  10 February 2011

C. Becker ,
H. Krug  and
H. Schmidt
C. Becker
Affiliation:
Composite Technology Group, Institut füt Neue Materialien gem. GmbH, Im Stadtwald, Geb.43, D-66123 Saarbrücken, Germany, +49/681/302 5000, +49/681/302 5223
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Abstract

Thermoplastic nanocomposites based on linear polymethacrylates as matrix materials and spherical silica particles as fillers have been synthesized using the in situ free radical polymerization technique of methacrylate monomers in presence of specially functionalized SiO2 nanoparticulate fillers. Uncoated monodisperse silica particles with particle sizes 100 nm and 10 nm were used as reference fillers. For surface modification, the alcoholic dispersions of the fillers were treated with appropriate amounts of methacryloxypropyltrimethoxysilane (MPTS) and acetoxypropyltrimethoxysilane (APTS). Transmission electron microscopy (TEM) was used to investigate dispersion behaviour in dependence on surface modification. Dynamic mechanical properties were measured by dynamic mechanical thermal analysis (DMTA).

Keywords

Thermoplasticsnanocompositesthermomechanical properties
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 435: Symposium V – Better Ceramics Through Chemistry VII , 1996 , 237
Copyright
Copyright © Materials Research Society 1996

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