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Affecting Factors and Chemical Reaction Mechanism of Composite Solid Propellants during the Aging Process |
Received:September 14, 2023 Revised:October 14, 2023 |
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DOI:10.7643/issn.1672-9242.2023.10.008 |
KeyWord:solid propellant aging process affecting factors action mode chemical reaction mechanism failure mode |
Author | Institution |
HUO Wen-long |
School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin , China |
XIE Li-na |
School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin , China |
SUN Xue-ying |
School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin , China |
ZHANG Ting-ting |
School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin , China |
ZHANG Jian |
School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin , China |
XIA De-bin |
School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin , China |
YANG Yu-lin |
School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin , China |
LIN Kai-feng |
School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin , China |
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Abstract: |
Based on storage aging of solid propellants, the research progress of various affecting factors, action mode and chemical reaction mechanism on the aging process of solid propellants in recent years is reviewed with NEPE propellants and HTPB propellants as the representatives. The effects of external environmental factors such as temperature and humidity, stress and ambient atmosphere, formula properties, composition changes and additives on propellant aging and storage failure time are summarized. The mechanism of internal and external factors to accelerate or slow down the aging process of solid propellant is analyzed from micro and macro perspectives. In addition, the oxidative crosslinking, decomposition and chain breaking of chemical components such as adhesives, oxidants and antioxidants during propellant aging are summarized, and the mechanism and reasons of each reaction are analyzed. Finally, the future development trend of the research on the affecting factors of solid propellant aging is prospected, and the research routes for the research on the aging mechanism and failure mode of solid propellant in the future are provided. |
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