Synthesis and Effects of Two Novel Rare-Earth Energetic Complexes on Thermal Decomposition of Cyclotetramethylene Tetranitramine (HMX)

Cao, Xuefang; Wei, Zhixian; Song, Jiangfeng; Zhang, Hedan; Qu, Yuanyuan; Xie, Fei

doi:10.3390/ma13122811

Open AccessArticle

Synthesis and Effects of Two Novel Rare-Earth Energetic Complexes on Thermal Decomposition of Cyclotetramethylene Tetranitramine (HMX)

by

Xuefang Cao

¹,

Zhixian Wei

^1,*,

Jiangfeng Song

^2,*,

Hedan Zhang

¹,

Yuanyuan Qu

² and

Fei Xie

²

¹

School of Environment and Safety Engineering, North University of China, Taiyuan 030051, China

²

School of Science, North University of China, Taiyuan 030051, China

^*

Authors to whom correspondence should be addressed.

Materials 2020, 13(12), 2811; https://doi.org/10.3390/ma13122811

Submission received: 30 April 2020 / Revised: 11 June 2020 / Accepted: 17 June 2020 / Published: 22 June 2020

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Abstract

In order to explore the effect of the energetic complex on the thermal decomposition HMX, two new rare-earth energetic complexes [La(tza)(NO₃)₂(H₂O)₄]_n (1) and [Ce(tza)(NO₃)₂(H₂O)₄]_n (2) (Htza = tetrazole-1-acetic acid) were prepared by a solvent evaporation method. The obtained products were structurally characterized by Fourier-transform infrared spectroscopy (FTIR), elemental analysis, powder X-ray diffraction (PXRD), single crystal X-ray diffraction (XRD), and thermogravimetric analysis coupled with differential scanning calorimetry (TG-DSC). In addition, the compatibility of complex 1 with cyclotetramethylene tetranitramine (HMX) was studied by DSC and FTIR, respectively. Structural analysis suggested that complex 1 exhibits an orthorhombic, P 2₁ 2₁ 2₁ space group, and the La (III) ion was 10-fold coordinated in a distorted double-capped antiprism configuration. Complex 2 featured a one-dimensional, right-handed helical infinite chain. The effect of complexes 1 and 2 on the thermal decomposition of HMX was investigated by DSC, which revealed that complex 1 showed a slightly better effect than 2 on the thermal decomposition of HMX and released more heat. Furthermore, complex 1 had good compatibility with HMX, indicating that it may act as a combustion promoter for nitrate ester plasticized polyether (NEPE) solid propellant.

Keywords: energetic complex; HMX; promoter; compatibility

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MDPI and ACS Style

Cao, X.; Wei, Z.; Song, J.; Zhang, H.; Qu, Y.; Xie, F. Synthesis and Effects of Two Novel Rare-Earth Energetic Complexes on Thermal Decomposition of Cyclotetramethylene Tetranitramine (HMX). Materials 2020, 13, 2811. https://doi.org/10.3390/ma13122811

AMA Style

Cao X, Wei Z, Song J, Zhang H, Qu Y, Xie F. Synthesis and Effects of Two Novel Rare-Earth Energetic Complexes on Thermal Decomposition of Cyclotetramethylene Tetranitramine (HMX). Materials. 2020; 13(12):2811. https://doi.org/10.3390/ma13122811

Chicago/Turabian Style

Cao, Xuefang, Zhixian Wei, Jiangfeng Song, Hedan Zhang, Yuanyuan Qu, and Fei Xie. 2020. "Synthesis and Effects of Two Novel Rare-Earth Energetic Complexes on Thermal Decomposition of Cyclotetramethylene Tetranitramine (HMX)" Materials 13, no. 12: 2811. https://doi.org/10.3390/ma13122811

APA Style

Cao, X., Wei, Z., Song, J., Zhang, H., Qu, Y., & Xie, F. (2020). Synthesis and Effects of Two Novel Rare-Earth Energetic Complexes on Thermal Decomposition of Cyclotetramethylene Tetranitramine (HMX). Materials, 13(12), 2811. https://doi.org/10.3390/ma13122811

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Synthesis and Effects of Two Novel Rare-Earth Energetic Complexes on Thermal Decomposition of Cyclotetramethylene Tetranitramine (HMX)

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