The physical properties of aged NEPE-5 under 65 ℃ were measured by using the dynamic mechanical analysis and the change of dynamic properties were analyzed. The data varied regularly with the increase of aging time when the temperature ranged from -20 ℃ to 40 ℃. The specific heat around vitrification and viscoelastic coefficient and all decreased with the increase of aging time. At high temperature section (0~40 ℃),the storage modulus and the loss modulus changed little when the samples were aged for less than 60 days, whereas increased greatly with the increase of aging time after aged for 60 days.
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范夕萍,刘子如,孙莉霞,等. NEPE-5固体推进剂物理老化的动态力学性能[J].含能材料, 2002, 10(3):132-135. FAN Xi-ping, LIU Zi-ru, SUN Li-xia, et al. Dynamic Properties of Aged NEPE-5[J]. Chinese Journal of Energetic Materials, 2002, 10(3):132-135.