Stress Related Surface Tension Effects in Hard Elastic Polymers.

Abstract

Stress depressions of hard elastic polypropylene, hard elastic high impact polystyrene, and Gore-Tex, A nonelastic, porous, Teflon material were measured when these polymers, under load, were subjected to changes in their environment from air to various nonswelling liquids. The stress depressions were studied as a function of liquid surface tension and viscosity and the strain imposed on the materials. Results indicate that these microfibrillated polymers contain a substantial surface energy component in their stress which is independent of strain at high tension. This surface energy component is apparently inversely proportional to the average microfibril diameter. It suggested that a maximum fibril diameter limiter exists such that, above this limit, hard elastic behavior will not occur. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Aug 19, 1982
Accession Number
ADA119075

Entities

People

  • Adelsamie Moet
  • Eric Baer
  • Kim Walton

Organizations

  • Case Western Reserve University

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Alcohols
  • Classification
  • Dielectric Polymers
  • Equations
  • Films
  • Fluid Flow
  • Materials
  • Materials Processing
  • Materials Testing
  • Mechanical Properties
  • Methanols
  • Military Research
  • Polymers
  • Residual Stress
  • Residuals
  • Surface Energy
  • Surface Tension

Readers

  • Geotechnical Engineering.
  • Reinforced Composite Materials
  • Solar Physics