Premium
Dynamic shear modulus of polystyrene bead foams
Author(s) -
Rinde J. A.,
Hoge K. G.
Publication year - 1972
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/app.1972.070160609
Subject(s) - polystyrene , materials science , shear modulus , modulus , composite material , bulk modulus , polymer , dynamic mechanical analysis , dynamic modulus , arrhenius plot , young's modulus , bead , thermodynamics , chemistry , activation energy , organic chemistry , physics
The shear storage modulus has been determined for 0.05, 0.10, and 0.22 g/cc polystyrene bead foams and for the full density polymer at frequencies from 0.005 to 0.5 Hz at temperatures from −5° to 84°C. These data are superposed to form master curves of log modulus versus log temperature‐reduced frequency, using shift factors calculated by the Arrhenius equation. A plot of log modulus versus log density is linear for the three density foams; however, the modulus value for the solid polymer does not follow this relationship.