Accession Number:

ADA051414

Title:

The Effect of High Hydrostatic Pressure on the Permeability of Elastomers to Water,

Descriptive Note:

Corporate Author:

NAVAL APPLIED SCIENCE LAB BROOKLYN N Y

Personal Author(s):

Report Date:

1966-01-01

Pagination or Media Count:

18.0

Abstract:

The permeability of butyl rubber to pressurized water was measured at 10,000 psi hydrostatic pressure using a relatively simple method which consisted of constructing pouches from rubber, filling these with desiccant and exposing them to pressurized water. At this high hydrostatic pressure the permeability was found to be smaller than at ambient pressure. This result is significant as it enables one to decide as to the suitability of butyl rubber for construction of hydrophone boots. Similar results found by other investigators for other polymeric materials were cited. A thermodynamic analysis of the process of permeation by activated diffusion was made, and the mechanism involved was discussed. It was shown that this seemingly strange behavior could be expected for processes in which permeation occurs by activated diffusion. Author

Subject Categories:

  • Elastomers and Rubber
  • Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE