Development of a Model to Predict Chemical Permeation of the U.S. Coast Guard Chemical Response Suit
Abstract
A predictive model was developed and computerized to enable Coast Guard field Personnel to determine with 95% certainty whether totally encapsulated suits would be adequate barriers to untested chemicals. The model was based on permeation test results at 25 degrees centigrade of 163 chemicals against Challenge 5100 and 125 chemicals against Challenge 5200 fluoropolymer suit materials. Additional tests contained in the data base included tests at other temperatures and 36 mixtures. The model enables prediction as to whether permeation will be detected within three hours at 25 degrees centigrade, based on structure and size of the chemical of interest. Mixtures were found to exhibit no synergistic effects, i.e., each component behaves as it would alone (permeates or does not permeate). Compounds that tend to permeate have six carbons or less, carbon-carbon multiple bonds, halogen atoms, and are small non- polar organic compounds or small non-acidic, non-ionic inorganic compounds. Permeation, predictive model, fluoropolymer films, mixtures, mechanism of permeation
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 1991
- Accession Number
- ADA248186
Entities
People
- J. R. Powell
- R. Goydan
Organizations
- Arthur D. Little