Preparation and Properties of 1, 3, 5, 7-Tetranitro-1, 3, 5, 7-Tetrazocane-based Nanocomposites

Xiaofeng Shi; Jingyu Wang; Xiaodong Li; Chongwei An; Jiang Wang; Wei Ji

doi:10.14429/dsj.65.7843

Xiaofeng Shi Chemical Industry and Ecology Institute, North University of China, Taiyuan Shanxi
Jingyu Wang Chemical Industry and Ecology Institute, North University of China, Taiyuan Shanxi
Xiaodong Li Chemical Industry and Ecology Institute, North University of China, Taiyuan Shanxi
Chongwei An Chemical Industry and Ecology Institute, North University of China, Taiyuan Shanxi
Jiang Wang Chemical Industry and Ecology Institute, North University of China, Taiyuan Shanxi
Wei Ji Chemical Industry and Ecology Institute, North University of China, Taiyuan Shanxi

DOI: https://doi.org/10.14429/dsj.65.7843

Keywords: Spray drying, Viton A, nanocomposites, thermal analysis, X-ray techniques

Abstract

A new insensitive explosive based on octahydro-1, 3, 5, 7-tetranitro-1, 3, 5, 7-tetrazocine (HMX) was prepared by spray drying using Viton A as a binder. The HMX sample without binder (HMX-1) was obtained by the same spray drying process also. The samples were characterised by Scanning Electron Microscope, and X-ray diffraction. The Differential Scanning Calorimetry and the impact sensitivity of HMX-1 and nanocomposites were also being tested. The nanocomposite morphology was found to be microspherical (1 μm to 7 μm diameter) and composed of many tiny particles, 100 nm to 200 nm in size. The crystal type of HMX-1 and HMX/Viton A agrees with raw HMX. The activation energy of raw HMX, HMX-1 and HMX/Viton A is 523.16 kJ mol-1, 435.74 kJ mol-1 and 482.72 kJ mol-1, respectively. The self-ignition temperatures of raw HMX, HMX-1 and HMX/Viton A is 279.01 °C, 277.63 °C, and 279.34 °C, respectively. The impact sensitivity order of samples is HMX/Viton A < HMX-1 < raw HMX from low to high.

Defence Science Journal, Vol. 65, No. 2, March 2015, pp.131-134, DOI:http://dx.doi.org/10.14429/dsj.65.7843