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Temperature and Humidity Aging Characteristics of Composite Solid Propellant  

Lee Kyung-Joo (국방과학연구소 기술연구본부 추진기관부)
Publication Information
Journal of the Korean Society of Propulsion Engineers / v.9, no.2, 2005 , pp. 46-53 More about this Journal
Abstract
We have analyzed the temperature and humidity aging test results of a composite solid propellant. The temperature aging test was performed to evaluate the storage life of a propellant, while the humidity aging test could provide the hygroscopicity of Ammonium Perchlorate(AP) exposed to .elative humidity (RH) 10, 30, $50\%$ environment. A specimen was used in the temperature test, and a block of propellant from the actual motor was used in the humidity test. We report that the 4-month storing at 60 degree is equivalent to the 10-year 60 degree condition. The composite solid propellant with HTPB binder showed signs of hardening with time lapse but the effect of humidity up to RH $50\%$ was not noticeable.
Keywords
Composite Solid Propellant; Temperature Aging; Humidity Aging;
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