Premium
Structure and properties of polyurethane–silica nanocomposites
Author(s) -
Petrović Zoran S.,
Javni Ivan,
Waddon Alan,
Bánhegyi György
Publication year - 2000
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/(sici)1097-4628(20000411)76:2<133::aid-app3>3.0.co;2-k
Subject(s) - polyurethane , nanocomposite , materials science , polymer science , composite material , polymer chemistry
Nanocomposites with different concentrations of nanofiller were prepared by adding nanosilica filler to the single‐phase polyurethane matrix. A control series was prepared with the same concentrations of micron‐size silica. The nanosilica filler was amorphous, giving composites with the polyurethane that were transparent at all concentrations. The nanocomposites displayed higher strength and elongation at break but lower density, modulus, and hardness than the corresponding micron‐size silica‐filled polyurethanes. Although the nanosilica showed a stronger interaction with the matrix, there were no dramatic differences in the dielectric behavior between the two series of composites. © 2000 John Wiley & Sons, Inc. J Appl Polym Sci 76: 133–151, 2000