Accession Number:

ADA277698

Title:

Flooded Cell Permeation Testing of Elastomers

Descriptive Note:

Progress rept.,

Corporate Author:

ARMY RESEARCH LAB WATERTOWN MA MATERIALS DIRECTORATE

Personal Author(s):

Report Date:

1994-03-01

Pagination or Media Count:

19.0

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.

Subject Categories:

  • Organic Chemistry
  • Polymer Chemistry
  • Elastomers and Rubber
  • Optics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE