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Issue 23, 2018
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Catalytic study on thermal decomposition of Cu-en/(AP, CL-20, RDX and HMX) composite microspheres prepared by spray drying

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Abstract

This paper mainly describes a spray drying method for the preparation of a variety of composite microspheres of energetic materials, including AP, RDX, β-HMX, and ε-CL-20, which are commonly used in composite modified double base propellants. The composite microspheres were prepared with catalyst Cu-en to increase the contact area between the energetic materials and the catalyst. The results of powder XRD and EDX suggest that copper is mainly distributed in the interior of AP and ε-CL-20 composite particles, but mainly dispersed on the surface of β-HMX and RDX microspheres. The data of the DSC test show that the catalytic effects of the composite microspheres exhibit the best performance, compared with the simply physically mixed catalyst and the energetic materials. The exothermic peak temperatures of AP, RDX, β-HMX, and ε-CL-20 are reduced to 305.4 °C, 228.6 °C, 280.2 °C and 232.0 °C, respectively. The results show that the composite microspheres can enlarge the contact area between the catalyst and the energetic materials thus enabling an enhanced catalytic effect.

Graphical abstract: Catalytic study on thermal decomposition of Cu-en/(AP, CL-20, RDX and HMX) composite microspheres prepared by spray drying

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Publication details

The article was received on 15 Aug 2018, accepted on 27 Oct 2018 and first published on 29 Oct 2018


Article type: Paper
DOI: 10.1039/C8NJ04166K
Citation: New J. Chem., 2018,42, 19062-19069
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    Catalytic study on thermal decomposition of Cu-en/(AP, CL-20, RDX and HMX) composite microspheres prepared by spray drying

    N. Song, L. Yang, J. Han, J. Liu, G. Zhang and H. Gao, New J. Chem., 2018, 42, 19062
    DOI: 10.1039/C8NJ04166K

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