TY - GEN
T1 - Decomposition Kinetics and Cook-off Numerical Simulation of Insensitive Energetic Plasticizer Plasticized Propellants
AU - Wang, Ya Lun
AU - Chen, Yu
AU - Liu, Yun Fei
N1 - Publisher Copyright:
© 2022 Trans Tech Publications Ltd, Switzerland.
PY - 2022
Y1 - 2022
N2 - Aiming at the thermal safety issues between the insensitive energetic plasticizer and propellant components, NG/BTTN and insensitive energetic plasticizer BuNENA plasticized propellant was compared by DSC test and cook-off numerical simulation, with the thermal safety property evaluated. The decomposition activation energy Ea and self-ignition temperature Tb of BuNENA plasticized propellant was lower than that of NG/BTTN plasticized propellant. Two kinds of propellant responded in the central area during slow cook-off simulation while in the near shell area during medium cook-off simulation. During fast cook-off simulation, depending on the different thickness of insulator, propellant responded at the area near shell or the area near the caps. The response temperature of two propellants in cook-off simulation agreed with decomposition and self-ignition temperature by DSC, and the decomposition of plasticizer could trigger the response. In cook-off simulation, BuNENA plasticized propellant showed a lower response temperature with a smaller high temperature area before response, resulting a milder response and better thermal safety than NG/BTTN plasticized propellant.
AB - Aiming at the thermal safety issues between the insensitive energetic plasticizer and propellant components, NG/BTTN and insensitive energetic plasticizer BuNENA plasticized propellant was compared by DSC test and cook-off numerical simulation, with the thermal safety property evaluated. The decomposition activation energy Ea and self-ignition temperature Tb of BuNENA plasticized propellant was lower than that of NG/BTTN plasticized propellant. Two kinds of propellant responded in the central area during slow cook-off simulation while in the near shell area during medium cook-off simulation. During fast cook-off simulation, depending on the different thickness of insulator, propellant responded at the area near shell or the area near the caps. The response temperature of two propellants in cook-off simulation agreed with decomposition and self-ignition temperature by DSC, and the decomposition of plasticizer could trigger the response. In cook-off simulation, BuNENA plasticized propellant showed a lower response temperature with a smaller high temperature area before response, resulting a milder response and better thermal safety than NG/BTTN plasticized propellant.
KW - BuNENA plasticizer
KW - Cook-off numerical simulation
KW - Insensitive NEPE propellant
KW - Thermal decomposition kinetics
UR - http://www.scopus.com/inward/record.url?scp=85123296778&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/KEM.905.263
DO - 10.4028/www.scientific.net/KEM.905.263
M3 - Conference contribution
AN - SCOPUS:85123296778
SN - 9783035715361
T3 - Key Engineering Materials
SP - 263
EP - 268
BT - Material Science and Engineering - Selected peer-reviwed full text papers from the 9th Annual International Conference on Material Science and Engineering, ICMSE 2021
A2 - Hage Chehade, Fadi
A2 - Hu, Chen
A2 - Wang, Ke
PB - Trans Tech Publications Ltd.
T2 - 9th Annual International Conference on Material Science and Engineering, ICMSE 2021
Y2 - 22 July 2021 through 24 July 2021
ER -