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| Application of X-ray Photoelectron Spectroscopy in Investigating Aging Mechanism of HTPB Propellant |
| Received:June 07, 2013 Revised:September 01, 2013 |
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| DOI：10.7643/issn.1672-9242.2013.05.011 |
| KeyWord:X-ray photoelectron spectroscopy solid propellant aging mechanism |
| Author | Institution |
| WEI Xiao-qin |
Southwest Technology and Engineering Research Institute，Chongqing，China;Natural Environmental Test and Research Center of Defense Science and Technology，Chongqing，China |
| YANG Wan-jun |
Southwest Technology and Engineering Research Institute，Chongqing，China;Natural Environmental Test and Research Center of Defense Science and Technology，Chongqing，China |
| LUO Tian-yuan |
Southwest Technology and Engineering Research Institute，Chongqing，China;Natural Environmental Test and Research Center of Defense Science and Technology，Chongqing，China |
| HUANG Wen-ming |
Southwest Technology and Engineering Research Institute，Chongqing，China;Natural Environmental Test and Research Center of Defense Science and Technology，Chongqing，China |
| LI Ze-hua |
Southwest Technology and Engineering Research Institute，Chongqing，China;Natural Environmental Test and Research Center of Defense Science and Technology，Chongqing，China |
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| Abstract: |
| Elementary composition, chemical valence, and content change of HTPB propellant stored in80℃hot air for0,13, and 24 weeks were investigated using X-ray photoelectron spectroscopy. It was concluded that HTPB propellant at normal-temperature (25℃) storage is oxidation crosslinking in earlier aging stage and degradation in later aging stage via fitting XPS spectrogram of C, O, N and Cl elements; the main reason of HTPB propellant aging failure is that NH4ClO4 is slowly decomposed to attack unsaturated C??C double bond and then results in lower content of C??C double bond. |
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