Dynamic Mechanical Measurement of Polyphenylsulfone (Radel)

Abstract

The dynamic response of Polyphenylsulfone (Radel) was measured with the Rheometrics Mechanical Spectrometer in different modes: Torsional Bar, Tensile, 3 Point-Bending, and Parallel Plates. The measurements cover a temperature range from -150 deg C to 380 deg C. Two secondary transitions below the glass transition have been identified and their relaxation activation energies are evaluated. The region above the glass transition temperature was characterized by Parallel Plates measurement and a maximum similar to the liquid-liquid transition was observed. Viscosity in this region was also measured as a function of frequencies. A Master Curve was constructed from the Torsion and Parallel Plates data, and the frequency shift parameters were fitted to the WLF equation.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1979
Accession Number
ADA077281

Entities

People

  • C. Y. Lee
  • Jacque D. Henes
  • Thomas E. Grossman

Organizations

  • University of Dayton

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Agreements
  • Air Force
  • Air Force Facilities
  • Composite Materials
  • Contracts
  • Energy
  • Frequency
  • Frequency Shift
  • Heat Of Activation
  • Materials
  • Materials Laboratories
  • Measurement
  • Mechanical Properties
  • Temperature Gradients
  • Transition Temperature
  • Universities
  • Viscosity

Readers

  • Materials Science and Engineering.
  • Mechanical Engineering/Mechanics of Materials.
  • Polymer Science and Engineering.