A novel energetic composite with a special sandwich microstructure: RDX/expanded graphite intercalation composite

In this paper, the RDX/expanded graphite (EG) intercalation composites were prepared by solvent/anti-solvent process to recrystallize RDX crystals into the holes, gaps and grooves of EG with controllable embedding ratio (maximum 87.0 wt%) and crystal size. RDX in the composites was in the most stableα-phase, which was benefit for its further application in the military industry. The stability and sensitivity of RDX were improved with higher melting and thermolysis temperature, activation enthalpy (ΔH ≠), critical temperature of thermal explosion (T b) and lower mechanical sensitivity. The advanced half-coated parallel multi-sandwiches microstructure of RDX/EG intercalation composites possessed two effects: (i) high heat conduction and (ii) hot spots isolation of the carbon microstructure, which were the key to higher performance.

[1]  K. An,et al.  Recent advanced thermal interfacial materials: A review of conducting mechanisms and parameters of carbon materials , 2019, Carbon.

[2]  Zhonghao Rao,et al.  Experimental investigation on thermal properties and thermal performance enhancement of octadecanol/expanded perlite form stable phase change materials for efficient thermal energy storage , 2019, Renewable Energy.

[3]  L. Bach,et al.  The Preparation and Characterization of Expanded Graphite via Microwave Irradiation and Conventional Heating for the Purification of Oil Contaminated Water. , 2019, Journal of nanoscience and nanotechnology.

[4]  A. Roskilly,et al.  Investigation of equilibrium and dynamic performance of SrCl2-expanded graphite composite in chemisorption refrigeration system , 2019, Applied Thermal Engineering.

[5]  Bo Zhang,et al.  Stearic acid/expanded graphite as a composite phase change thermal energy storage material for tankless solar water heater , 2019, Sustainable Cities and Society.

[6]  Guixiang Ma,et al.  Preparation and thermal properties of stearic acid-benzamide eutectic mixture/expanded graphite composites as phase change materials for thermal energy storage , 2019, Powder Technology.

[7]  D. Xiang,et al.  Flame retardancy and toughening properties of epoxy composites containing ammonium polyphosphate microcapsules and expanded graphite , 2018 .

[8]  Shu-sen Chen,et al.  A novel cocrystal composed of CL-20 and an energetic ionic salt. , 2018, Chemical communications.

[9]  Pengwan Chen,et al.  Stabilizing Metastable Polymorphs of Metal-Organic Frameworks via Encapsulation of Graphene Oxide and Mechanistic Studies. , 2018, ACS applied materials & interfaces.

[10]  Soojin Park,et al.  Interlayer polymerization in amine-terminated macromolecular chain-grafted expanded graphite for fabricating highly thermal conductive and physically strong thermoset composites for thermal management applications , 2018, Composites Part A: Applied Science and Manufacturing.

[11]  Kuo-Hui Wu,et al.  Adsorption and decomposition of dimethyl methylphosphonate (DMMP) on expanded graphite/metal oxides , 2018, Applied Surface Science.

[12]  T. Chen,et al.  Preparation and characterization of RDX/BAMO-THF energetic nanocomposites , 2018, Journal of Energetic Materials.

[13]  Chengguo Sun,et al.  Synthesis of AgN5 and its extended 3D energetic framework , 2018, Nature Communications.

[14]  Hsu-Chiang Kuan,et al.  Preparation of expandable graphite and its flame retardant properties in HDPE composites , 2017 .

[15]  Shu-sen Chen,et al.  Preparation, characterization and thermal risk evaluation of dihydroxylammonium 5, 5'-bistetrazole-1, 1'-diolate based polymer bonded explosive. , 2017, Journal of hazardous materials.

[16]  Tie-hu Li,et al.  Synthesis of sandwich microstructured expanded graphite/barium ferrite connected with carbon nanotube composite and its electromagnetic wave absorbing properties , 2017 .

[17]  Q. Yao,et al.  Preparation, Characterization, Thermal Evaluation and Sensitivities of TKX‐50/GO Composite , 2017 .

[18]  Xiaoliang Zhang,et al.  Thermal decomposition and sensitivities of RDX/SiO2 nanocomposite prepared by an improved supercritical SEDS method , 2017, Journal of Thermal Analysis and Calorimetry.

[19]  Chengguo Sun,et al.  Synthesis and characterization of the pentazolate anion cyclo-N5ˉ in (N5)6(H3O)3(NH4)4Cl , 2017, Science.

[20]  A. Sikder,et al.  Understanding metastable phase transformation during crystallization of RDX, HMX and CL-20: experimental and DFT studies. , 2016, Physical chemistry chemical physics : PCCP.

[21]  F. Zhao,et al.  Highly energetic compositions based on functionalized carbon nanomaterials. , 2016, Nanoscale.

[22]  Shu-sen Chen,et al.  Nitrogen-rich 4,4'-azo bis(1,2,4-triazolone) salts--the synthesis and promising properties of a new family of high-density insensitive materials. , 2016, Dalton transactions.

[23]  Guozhu Shen,et al.  Preparation and electromagnetic properties of zinc ferrite/expanded graphite composites , 2014 .

[24]  Wenyuan Zhao,et al.  Particle refinement and graphene doping effects on thermal properties of potassium picrate , 2014, Journal of Thermal Analysis and Calorimetry.

[25]  Q. Jiao,et al.  A novel ε-HNIW-based insensitive high explosive incorporated with reduced graphene oxide , 2014, Journal of Thermal Analysis and Calorimetry.

[26]  Xuli Wei,et al.  Preparation and millimeter wave attenuation properties of NiFe2O4/expanded graphite composites by low-temperature combustion synthesis , 2014 .

[27]  Yukitaka Kato,et al.  Thermochemical performance of magnesium hydroxide–expanded graphite pellets for chemical heat pump , 2014 .

[28]  Rui Li,et al.  Preparation and Characterization of Insensitive HMX/Graphene Oxide Composites , 2013 .

[29]  Li Yang,et al.  The facile synthesis of graphene nanoplatelet–lead styphnate composites and their depressed electrostatic hazards , 2013 .

[30]  P. Jiang,et al.  Flammability of EVA/IFR (APP/PER/ZB system) and EVA/IFR/synergist (CaCO3, NG, and EG) composites , 2012 .

[31]  K. Raju,et al.  Synthesis and microwave characterization of expanded graphite/novolac phenolic resin composite for microwave absorber applications , 2011 .

[32]  F. Zahid,et al.  Energetic Molecules Encapsulated Inside Carbon Nanotubes and between Graphene Layers: DFT Calculations , 2011 .

[33]  B. Xiang,et al.  Sandwich Complex of TATB/Graphene: An Approach to Molecular Monolayers of Explosives , 2010 .

[34]  Cai Qi,et al.  1,1'-Azobis-1,2,3-triazole: a high-nitrogen compound with stable N8 structure and photochromism. , 2010, Journal of the American Chemical Society.

[35]  Ruzhu Wang,et al.  Preparation and thermal characterization of expanded graphite/paraffin composite phase change material , 2010 .

[36]  Gilson da Silva,et al.  Characterization of Polymer‐Coated RDX and HMX Particles , 2008 .

[37]  B. Spinner,et al.  Optimization of a chemical heat pump: Energetic density and power , 1993 .