Flooded Cell Permeation Testing of Elastomers

Abstract

Permeation studies were carried out using a flooded radian test cell to follow the diffusion of an organic liquid through a polymer barrier. The experimental apparatus consists of a MiniCAMS (Miniature Continuous Air Monitoring System) equipped with a sulphur detector which has the capability of detecting nanogram quantities of permeant at breakthrough. The results yield a time dependent sigmoidal curve that allows determination of the solubility and diffusion coefficients as well as a breakthrough time. DMSO was selected as the test permeant as it is a low swelling solvent which is very sensitive toward detection by the sulphur GC detection system. This method was used to characterize the permeation properties of a number of elastomer systems including NR, SBR, BR, and IIR. Diffusion, Permeation, Elastomers.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1994
Accession Number
ADA277698

Entities

People

  • James M. Sloan
  • Stephen C. Bodnar

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force
  • Chemistry
  • Coefficients
  • Detection
  • Detectors
  • Diffusion
  • Diffusion Coefficient
  • Elastomers
  • Engineering
  • Information Processing
  • Materials
  • Materials Laboratories
  • Materials Science
  • Military Research
  • Molecules
  • Natural Rubber
  • Polymers

Readers

  • Analytical Chemistry
  • Polymer Science and Engineering.