Uniform Droplet Deposition of Thickened Chemical Agent Simulants By Supercritical Carbon Dioxide Viscosity Reduction
Abstract
Study of the fate of chemicals on substrates requires that those chemicals be applied to the substrate in a uniform and reproducible manner. Relatively simple means of droplet deposition of non-viscous chemicals are satisfactory, however thickened chemicals present problems using the same deposition techniques. By using supercritical carbon dioxide as a diluent, we were able to reduce the viscosity of various polymer-thickened chemicals and store them in a high-pressure reservoir. We achieved up to 20 fold reductions in viscosity of polymer-chemical mixtures and deposit them with no residual solvent retained within the deposited material.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 16, 2004
- Accession Number
- ADA449549
Entities
People
- Michael V. Henley
- Richard M. Weber
Organizations
- Air Force Research Laboratory