Preparation and Thermal Stability of Nano-Sized HMX-Based Polymer Bonded Explosives

ABSTRACT In this study, M-HMX-based PBX (M-HMX-PBX) and N-HMX-based PBX (N-HMX-PBX) were prepared by industrial micron-sized HMX (M-HMX) and nano-sized HMX (N-HMX) via solution-water suspension method, respectively. The critical electronic excitation energy (Ec ) of M-HMX particle and N-HMX particles was calculated by combining with field emission scanning electron microscopy (FE-SEM) and Image Pro Plus (IPP) software. Meanwhile, the average critical electron excitation energy ( ) of the entire particle group was calculated. Those results shown that of N-HMX was higher than that of M-HMX, which indicated that the stability of N-HMX was better than that of M-HMX. In addition, the reaction activation energies (Ea ) also indicated that N-HMX and N-HMX-PBX were more stable than M-HMX and M-HMX-PBX, which were calculated by the Kissinger-Akahira-Sunose (KAS) and Flynn-Wall-Ozawa (FWO) methods. The above results explained the reasons for the high thermal decomposition stability of N-HMX-PBX from the micro and macro perspectives. And those provided theoretical basis for exploring the application of N-HMX in improving the thermal stability of HMX-PBX.

[1]  Shanshan Li,et al.  Two-step catalytic pyrolysis behavior and product distribution of rice husk impregnated with zinc acetate , 2021 .

[2]  M. Mokhtar,et al.  Synergistic Catalytic Effect of Thermite Nanoparticles on HMX Thermal Decomposition , 2021, Journal of Inorganic and Organometallic Polymers and Materials.

[3]  Zu-liang Liu,et al.  Effect of 2,4,6‐Triamino‐3,5‐Dinitropyridine‐1‐Oxide on the Properties of 1,3,5‐Trinitro‐1,3,5‐Triazinane‐based PBX Explosives , 2021 .

[4]  D. Ponraju,et al.  Kinetics of thermal degradation of intumescent flame-retardant spirophosphates , 2021, Bulletin of Materials Science.

[5]  Chen Liu,et al.  Digital Image Correlation Measurement of the Deformation and Failure in PBX Brazilian Discs Reinforced with CFRP Patches , 2021 .

[6]  D. Özçimen,et al.  Determination of combustion characteristics and kinetic parameters of Ulva lactuca and its biochar , 2021 .

[7]  Zuo-hua Huang,et al.  The auto-ignition behaviors of HMX/NC/NG stimulated by heating in a rapid compression machine , 2020 .

[8]  Boshu He,et al.  Synergistic effect, kinetic and thermodynamics parameters analyses of co-gasification of municipal solid waste and bituminous coal with CO2. , 2020, Waste management.

[9]  D. Picart,et al.  Plastic Dissipation and Hot‐Spot Formation in HMX‐Based PBXs Subjected to Low Velocity Impact , 2020 .

[10]  R. Liu,et al.  Effect of Continuous Damage Accumulation on Ignition of HMX‐Based Polymer Bonded Explosives under Low‐Velocity Impact , 2020, Propellants, Explosives, Pyrotechnics.

[11]  Weihua Zhu,et al.  Theoretical studies on the surface property, thermal behaviors, stability, and disassembly process of HMX/DMF cocrystal , 2020, Computational Materials Science.

[12]  Pengwan Chen,et al.  Meso-scale failure simulation of polymer bonded explosive with initial defects by the numerical manifold method , 2020 .

[13]  Shashikant Kumar,et al.  Kinetic and Thermodynamic Evaluation of Pyrolysis of Plant Biomass using TGA , 2020 .

[14]  F. Huang,et al.  Numerical simulations of the damage evolution for plastic-bonded explosives subjected to complex stress states , 2019 .

[15]  L. Ding,et al.  Feasible self-healing CL-20 based PBX: Employing a novel polyurethane-urea containing disulfide bonds as polymer binder , 2019, Reactive and Functional Polymers.

[16]  Yingyun Qiao,et al.  Thermal degradation of typical plastics under high heating rate conditions by TG-FTIR: Pyrolysis behaviors and kinetic analysis , 2018, Energy Conversion and Management.

[17]  Shu-sen Chen,et al.  Thermal behavior and decomposition kinetics of CL-20-based plastic-bonded explosives , 2017, Journal of Thermal Analysis and Calorimetry.

[18]  Feng-sheng Li,et al.  Study of nano-nitramine explosives： preparation, sensitivity and application , 2014 .

[19]  V. P. Arya,et al.  Evaluation of the thermo-mechanical and explosive properties of bimodal and hybrid polymer bonded explosive (PBX) compositions based on HNS and HMX , 2013 .

[20]  Yanli Yin,et al.  Dynamic vacuum stability test method and investigation on vacuum thermal decomposition of HMX and CL-20 , 2012 .

[21]  A. Elbeih,et al.  Recent advances in thermal analysis and stability evaluation of insensitive plastic bonded explosives (PBXs) , 2012 .

[22]  P. Soni,et al.  Studies on energetic compounds Part 31. Thermolysis and kinetics of RDX and some of its plastic bonded explosives , 2005 .

[23]  P. Soni,et al.  Studies on energetic compounds part 28: thermolysis of HMX and its plastic bonded explosives containing Estane , 2003 .

[24]  Haruhiko Tanaka,et al.  A physico-geometric approach to the kinetics of solid-state reactions as exemplified by the thermal dehydration and decomposition of inorganic solids , 2002 .