Flooded Cell Permeation Testing of Elastomers
ARMY RESEARCH LAB WATERTOWN MA MATERIALS DIRECTORATE
Pagination or Media Count:
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.
- Organic Chemistry
- Polymer Chemistry
- Elastomers and Rubber