TY - JOUR
T1 - Study of thermal decomposition and mechanical sensitivity of ETPE propellants
AU - Zhang, Ning
AU - Gao, Xifei
AU - Xin, Yanping
AU - Zhang, Weihai
AU - Liu, Changyi
AU - Wu, Haohao
AU - Xue, Chen
AU - Chen, Lei
AU - Zhang, Na
AU - Zhang, Yuxuan
AU - Sun, Shixiong
AU - Luo, Yunjun
N1 - Publisher Copyright:
© 2024 Institute of Physics Publishing. All rights reserved.
PY - 2024
Y1 - 2024
N2 - In this paper, the thermal decomposition characteristics and mechanical sensitivity of ETPE propellant were characterized by differential scanning calorimeter (DSC), vacuum stability tester (VST), impact sensitivity tester and friction sensitivity tester, and the main factors affecting the safety performance of ETPE propellant were studied. The results show that ETPE propellant has good thermal stability under 185℃. The combustion activation energy of ETPE propellant is slightly lower than that of HTPB propellant. By using 100℃ heating method, the net added gas of ETPE propellant is 0.81ml/g, which meets the evaluation standard of stability qualification, and the propellant did not spontaneously combust under various high temperature test conditions. By reducing the amount of fine AP and controlling the amount of RDX, it is conducive to reducing the probability of the "hot spot" generated by the propellant under the external excitation energy, reducing the mechanical sensitivity of propellant and improving the safety performance of propellant.
AB - In this paper, the thermal decomposition characteristics and mechanical sensitivity of ETPE propellant were characterized by differential scanning calorimeter (DSC), vacuum stability tester (VST), impact sensitivity tester and friction sensitivity tester, and the main factors affecting the safety performance of ETPE propellant were studied. The results show that ETPE propellant has good thermal stability under 185℃. The combustion activation energy of ETPE propellant is slightly lower than that of HTPB propellant. By using 100℃ heating method, the net added gas of ETPE propellant is 0.81ml/g, which meets the evaluation standard of stability qualification, and the propellant did not spontaneously combust under various high temperature test conditions. By reducing the amount of fine AP and controlling the amount of RDX, it is conducive to reducing the probability of the "hot spot" generated by the propellant under the external excitation energy, reducing the mechanical sensitivity of propellant and improving the safety performance of propellant.
KW - ETPE propellant
KW - Mechanical sensitivity
KW - Thermal decomposition characteristics
UR - http://www.scopus.com/inward/record.url?scp=85214356419&partnerID=8YFLogxK
U2 - 10.1088/1742-6596/2891/15/152022
DO - 10.1088/1742-6596/2891/15/152022
M3 - Conference article
AN - SCOPUS:85214356419
SN - 1742-6588
VL - 2891
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
IS - 15
M1 - 152022
T2 - 4th International Conference on Defence Technology, ICDT 2024
Y2 - 23 September 2024 through 26 September 2024
ER -