Application of Al/B/Fe2O3 Nano Thermite in Composite Solid Propellant

Jingke Deng  -  School of Materials Science and Engineering, Beijing Institute of Technology, Beijing,, China
Guoping Li  -  School of Materials Science and Engineering, Beijing Institute of Technology, Beijing,, China
Lianhua Shen  -  School of Materials Science and Engineering, Beijing Institute of Technology, Beijing,, China
*Yunjun Luo  -  School of Materials Science and Engineering, Beijing Institute of Technology, Beijing,, China
Received: 5 Nov 2015; Revised: 4 Dec 2015; Accepted: 30 Dec 2015; Published: 1 Apr 2016; Available online: 10 Mar 2016.
Open Access Copyright (c) 2016 Bulletin of Chemical Reaction Engineering & Catalysis
License URL: http://creativecommons.org/licenses/by-sa/4.0

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Abstract

Hydroxyl-terminated polybutadiene (HTPB) propellant were prepared with different content of Al/B/Fe2O3 nano thermite, and the mechanical, thermal and energetic performances were studied. Al/B/Fe2O3 nano thermite exhibited good compatibility with HTPB and dioctyl sebacate (DOS) through differential scanning calorimetry (DSC) tests. Mechanical experiments show that the mechanical properties of HTPB propellant could be improved by the addition of a small quantity of Al/B/Fe2O3 nano thermite, compared with the absence of Al/B/Fe2O3 nano thermite. For example, with the addition of 3% Al/B/Fe2O3 nano thermite, the tensile strength and elongation of propellant had the increase of 15.3% and 32.1%, respectively. Thermal analysis indicated that the decomposition of ammonium perchlorate (AP) in HTPB propellant could be catalyzed by Al/B/Fe2O3 nano thermite, the high-temperature exothermic peak of AP was shifted to lower temperature by 70.8 °C when the content of Al/B/Fe2O3 nano thermite was 5%, and the heat released was enhanced by 70%. At the same time, the heat of explosion of HTPB propellant could also be enhanced by the addition of Al/B/Fe2O3 nano thermite. Copyright © 2016 BCREC GROUP. All rights reserved 

Received: 5th November 2015; Revised: 4th December 2015; Accepted: 30th December 2015

How to Cite: Deng, J., Li, G., Shen, L., Luo, Y. (2016). Application of Al/B/Fe2O3 Nano Thermite in Composite Solid Propellant. Bulletin of Chemical Reaction Engineering & Catalysis, 11 (1): 109-114. (doi:10.9767/bcrec.11.1.432.109-114)

Permalink/DOI: http://dx.doi.org/10.9767/bcrec.11.1.432.109-114

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Keywords: Al/B/Fe2O3 nano thermite; HTPB propellant; mechanical performance; thermal analysis; heat of explosion

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Article Info
Section: The 2015 Global Conference on Polymer and Composite Materials (PCM 2015)
In 2016: BCREC Volume 11 Issue 1 Year 2016 (SCOPUS and Web of Science Indexed, April 2016)
Statistics: 1376 484
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