The Ferry Reduction and the Activation Energy for Viscous Flow
- 1 October 1953
- journal article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 24 (10) , 1300-1304
- https://doi.org/10.1063/1.1721150
Abstract
The relationship proposed by Ferry and his co-workers for the effects of frequency and temperature on the dynamic properties of certain polymers is shown to lead to a method for calculating the activation energy of viscous flow from relaxation, creep, and dynamic test data, the results agreeing with those obtained in steady-state flow. The Ferry reduction explains, and is supported by, observed increases in dynamic modulus and viscosity with increasing temperature.This publication has 11 references indexed in Scilit:
- Measurement of Dynamic Shear Viscosity and Stiffness of Viscous Liquids by Means of Traveling Torsional WavesThe Journal of the Acoustical Society of America, 1952
- Interaction of Polymers and Mechanical WavesBell System Technical Journal, 1952
- Elastoviscous properties of polyisobutylene. IV. Relaxation time spectrum and calculation of bulk viscosityJournal of Polymer Science, 1951
- Mechanical Properties of Substances of High Molecular Weight. X. The Relaxation Distribution Function in Polyisobutylene and Its SolutionsJournal of Applied Physics, 1951
- Measurements of Mechanical Properties of Polyisobutylene at Audiofrequencies by a Twin TransducerJournal of Applied Physics, 1950
- Dependence of elastic properties of vulcanized rubber on the degree of cross linkingJournal of Polymer Science, 1949
- Viscosity—Molecular Weight and Viscosity—Temperature Relationships for Polystyrene and Polyisobutylene1,2Journal of the American Chemical Society, 1948
- Stress Relaxation of Natural and Synthetic Rubber StocksJournal of Applied Physics, 1944
- Drift and Relaxation of RubberJournal of Applied Physics, 1944
- The Viscosity of Raw RubberJournal of Applied Physics, 1937