Energy characteristics and mechanical properties of cyclotrimethylenetrinitramine (RDX)-based insensitive high-energy propellant

Journal of Materials Research and Technology

Zhongliang Ma¹  Maolin Guo²  Yankang Zhang³  Chuntai Liu⁴  Jincheng Fan⁵  Taixin Liang⁶  Jiaoxia Zhang⁶  Zhongliang Xiao⁶  Zhanhu Guo⁷  Mengyao Dong⁸ 

[1] Biomolecular Engineering, University of Tennessee, Knoxville, TN 37996, USA;Corresponding authors.;;Integrated Composites Laboratory (ICL), Department of Chemical &Key Laboratory of Materials Processing and Mold (Zhengzhou University), Ministry of Education, National Engineering Research Center for Advanced Polymer Processing Technology, Zhengzhou University, Zhengzhou, China;Nanjing University of Science and Technology, Nanjing 210094, China;School of Environment and Safety Engineering, North University of China, Taiyuan 030051, China;School of Materials Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, China;Sichuan Huachuan Industries CO., LTD, Chengdu 610105, China;

关键词: Energy characteristic;    Mechanical property;    Energetic thermoplastic elastomer;    Cyclotrimethylenetrinitramine;    Propellant;   

DOI  :  

来源: DOAJ

【 摘 要 】

In order to improve the energy performance and mechanical properties of insensitive high-energy propellants, cyclotrimethylenetrinitramine (RDX)-based insensitive high-energy propellant with nitrocellulose (NC) and glycidyl azide polymer-energetic thermoplastic elastomer (GAP-ETPE) blends as the binder was prepared by solvent method. The effects of GAP-ETPE/NC ratio and RDX content on the energy properties of propellants were analyzed by numerical calculations. The effects of GAP-ETPE/NC ratio, RDX particle size and RDX content on the mechanical properties of propellants were studied by compression test, impact test and solid surface properties test. The impact sensitivity and friction sensitivity of all the propellant compositions were tested. The theoretical calculation results showed that the introduction of GAP-ETPE into propellant significantly decreased the explosion temperature and increased the specific volume. The density, compression strength, and surface energy of the propellant were gradually decreased with increasing the GAP-ETPE/NC ratio, and the impact strength was increased gradually as well. The mechanical properties and surface energy of the propellant were improved greatly when the RDX particles were smaller. The studied propellants showed a linear increase in the propellant force and explosion temperature with increasing the RDX content. However, increasing the RDX content significantly reduced the impact strength and surface energy. Mechanical reinforcement with solid fillers increased the compression strength and propellant density to a certain degree. Compared with the standard propellants SF-3, the prepared propellant composition is insensitive to the impact and friction.

【 授权许可】

Unknown