Abstract
Forty materials were tested to determine their relative resistance to permeation by nitrogen dioxide (NO2), monomethylhydrazine (MMH), and hydrazine (Hz) after exposure to the liquid hypergolic propellants dinitrogen tetroxide (N2O4), MMH, and anhydrous hydrazine (AHz), respectively. A new piece of material was used in each test. The materials were not preconditioned, nor was exposure to the hypergolic propellants repeated. In these tests, the materials were clamped in a static test cell that permitted one side of the fabric to be exposed to the oxidant or fuels, while the other side of the fabric was monitored for NO2, MMH, or Hz concentrations with an electrochemical analyzer. Breakthrough times were calculated for predefined “breakthrough” concentrations of 0.3 ppm NO2, 16 ppb MMH, or 16 ppb Hz and saturation concentrations of 1.8 ppm NO2, 1.6 ppm MMH, or 1.6 ppm Hz. These breakthrough times were tabulated for several samples of each material used in the tests. The materials tested were candidates for ...
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
