Journal of Advances in Nanomaterials

Download PDF (2567.3 KB) PP. 17 - 25 Pub. Date: June 1, 2019

DOI: 10.22606/jan.2019.42002

• Mi Zhang
  School of Materials Science and Engineering, North University of China, Taiyuan, China
• Yi Wang^*
  School of Materials Science and Engineering, North University of China, Taiyuan, China
• Hao Huang
  China North Industries Group Corporation Limited, Beijing, China
• Feifei Shang
  Teaching and Research Support Center, Army Academy of Armored Forces, Beijing, China
• Xiaolan Song^*
  School of Environment and Safety Engineering, North University of China, Taiyuan, China

Nitrocellulose/glycidylazide-polymer/erythritol-tetranitrate (NC/GAP/ETN) nanocomposite energetic materials were fabricated using a sol-gel-freeze method. The microstructure, crystal phase and molecular structure were characterized by SEM, XRD and IR. Meanwhile, the thermal properties, energy properties and mechanical sensitivity of the composites were also studied. The ETN particle size is about 500nm, and few partial gel skeleton collapsed and contracted. No phase transformation of the ETN occurred before or after fabrication, and the molecular structures of the ETN, NC and GAP did not change. There is only one exothermic peak in the DSC traces and the peak temperature of nanocomposites are approximately 62℃, 24℃ and 41℃ earlier than raw ETN. The Isp, C*, Tc, Mc, and Qp increase with the weight percentage of ETN increasing, and the oxygen balance of three samples is still negative. The mechanical sensitivity are all lower than raw ETN. The energy performance and safety performance of samples are improved.

NC/GAP/ETN, sol-gel-freeze; thermolysis, energetic performance, mechanical sensitivity.

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