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Crystal transition behaviors of CL-20 in polyether solid propellants plasticized by nitrate esters containing both HMX and CL-20

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Abstract

Crystal transition behaviors of CL-20 in polyether solid propellants plasticized by nitrate esters (NEPE propellants) in the presence of both HMX and CL-20 at 50 °C were researched by X-ray diffraction, scanning electron microscopy and dynamic mechanical analysis. It was revealed that the crystal transition phenomenon of CL-20 was not noticeable when CL-20 existed alone in the NEPE propellants at 50 °C. When the second explosive was added, the crystal transition behaviors of CL-20 were changed greatly. With the co-existence of HMX and CL-20, the crystal form of CL-20 was changed, and a co-crystal of CL-20/HMX formed in NEPE propellants at 50 °C. The formation mechanism for the CL-20/HMX co-crystal in NEPE propellants was studied by the integration of theory and experimental data.

Graphical abstract: Crystal transition behaviors of CL-20 in polyether solid propellants plasticized by nitrate esters containing both HMX and CL-20

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Publication details

The article was received on 05 Sep 2017, accepted on 02 Nov 2017 and first published on 02 Nov 2017


Article type: Paper
DOI: 10.1039/C7NJ03309E
Citation: New J. Chem., 2017, Advance Article
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    Crystal transition behaviors of CL-20 in polyether solid propellants plasticized by nitrate esters containing both HMX and CL-20

    S. Zhou, A. Pang and G. Tang, New J. Chem., 2017, Advance Article , DOI: 10.1039/C7NJ03309E

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