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INVESTIGATION OF ORGANIC COMPOUNDS FOR THERMAL PROTECTION. PART II
SBIR Report,19 Apr 1963,18 Jun 1964
MONSANTO RESEARCH CORP DAYTON OH DAYTON United States
Pagination or Media Count:
A high-intensity light source for simulation of the thermal pulse from nuclear explosions was constructed, calibrated and used for testing of 12 polymer systems at 19.2 calsq cmsec. The following polymers, filled with 5 Cr2O3, were tested polyethylene, polystyrene, 6,6-nylon polyvinyl fluoride, polyvinyl fluoride, polyacrylonitrile, polyvinyl chloride, polytetrafluoroethylene, chlorinated polyvinyl chloride, polymethyl methacrylate, polyvinylidene fluoride, and a polyurethane foam. In addition, two coded samples from U. S. Army Natick Laboratory NLAB were tested. Polystyrene, polyvinyl chloride, polyurethane foam, and the NLAB samples gave the most rapid production of smoke, light attenuation being detected in less than 0.2 sec. These materials also gave the greatest reduction 60 in transmission over a total four-second exposure. Consistent with these results with the hot filament pyrolysis technique, polymethyl methacrylate and polytetrafluoroethylene gave considerably less smoke on exposure to the high intensity light source.
APPROVED FOR PUBLIC RELEASE