Time and temperature dependence of the mechanical properties of polystyrene bead foam
Article first published online: 9 MAR 2003
Copyright © 1971 John Wiley & Sons, Inc.
Journal of Applied Polymer Science
Volume 15, Issue 6, pages 1377–1395, June 1971
How to Cite
Rinde, J. A. and Hoge, K. G. (1971), Time and temperature dependence of the mechanical properties of polystyrene bead foam. J. Appl. Polym. Sci., 15: 1377–1395. doi: 10.1002/app.1971.070150608
- Issue published online: 9 MAR 2003
- Article first published online: 9 MAR 2003
- Manuscript Revised: 25 FEB 1971
- Manuscript Received: 4 SEP 1970
Tensile and compressive properties of polystyrene bead (PSB) foams at room temperature for strain rates from 10−3 to 105 min−1 can be represented as nearly linearly increasing functions of modulus or stress versus the logarithm of the strain rate. The shear modulus and tensile data, including failure properties, on 0.054 g/cc PSB foam at various temperatures and strain rates can be represented by master curves of log (stress or modulus) versus log (reduced strain rate). These master curves are formed by a time and temperature superposition method, wherein data at one temperature are superposed on data at another temperature by a shift along the log (strain rate) axis. These time–temperature shift factors are calculated using a form of the Arrhenius equation.