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Updated: Dec 25, 2025

Research and Development of High-performance Explosives
Published on: February 20, 2016
High-substitute nitrochitosan used as energetic materials: Preparation and detonation properties
Chuping Li1, Hui Li2, Kangzhen Xu1
1School of Chemical Engineering/Integrated Military-Civilian Innovation Center for Energetic Materials, Northwest University, Xi'an, 710069, China.
Abstract:
In order to develop new high-energy materials utilizing natural products, a high-substitute nitrochitosan was prepared with different methods. Prepared processes and detonation properties of the nitrochitosan samples were systematically studied. The nitration substitute degree, nitrogen content, exothermic decomposition enthalpy, heat of combustion, impact sensitivity, detonation velocity and detonation pressure of the prepared high-substitute nitrochitosan were 2.01, 16.67 %, -2226 J g-1, -7831.6 ± 116.3 J g-1, >14.2 J, 7.81 km s-1, and 24.03 GPa, respectively. Compared with nitrocellulose (NC), the nitrogen content, impact sensitivity and detonation properties of the prepared nitrochitosan were significantly improved. Nitrochitosan and RDX can form a uniform composite in acetone. With the increase of RDX content, the impact sensitivity of composite increased, but the composite was more stable and not easy to decompose. High-substitute nitrochitosan presents a potential application in solid propellants.
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