Доступ предоставлен для: Guest
Портал Begell Электронная Бибилиотека e-Книги Журналы Справочники и Сборники статей Коллекции
International Journal of Energetic Materials and Chemical Propulsion
ESCI SJR: 0.28 SNIP: 0.421 CiteScore™: 0.9

ISSN Печать: 2150-766X
ISSN Онлайн: 2150-7678

Выпуски:
Том 20, 2021 Том 19, 2020 Том 18, 2019 Том 17, 2018 Том 16, 2017 Том 15, 2016 Том 14, 2015 Том 13, 2014 Том 12, 2013 Том 11, 2012 Том 10, 2011 Том 9, 2010 Том 8, 2009 Том 7, 2008 Том 6, 2007 Том 5, 2002 Том 4, 1997 Том 3, 1994 Том 2, 1993 Том 1, 1991

International Journal of Energetic Materials and Chemical Propulsion

DOI: 10.1615/IntJEnergeticMaterialsChemProp.2015015577
pages 131-140

PREPARATION AND CHARACTERIZATION OF HMX/GAP-ETPE NANOCOMPOSITES

Hequn Li
School of Chemical and Environmental Engineering, North University of China, Taiyuan, Shanxi 030051, P.R. China
Chongwei An
School of Chemical and Environmental Engineering, North University of China, Taiyuan, Shanxi 030051, P.R. China
Mengyuan Du
Shanxi Lu'an Mining (Group) Co., Ltd., Changzhi, Shanxi 046000, P.R. China
Baoyun Ye
School of Chemical and Environmental Engineering, North University of China, Taiyuan, Shanxi 030051, P.R. China
Jing-Yu Wang
School of Chemical and Environmental Engineering, North University of China, Taiyuan, Shanxi 030051, P.R. China

Краткое описание

An energetic thermoplastic elastomer (ETPE) was synthesized by glycidyl azide polymer (GAP), Diphenyl-methane-diisocyanate (MDI), and 1,4-butanediol (BDO). With GAP-ETPE as the binder, cyclotetramethylene tetranitramine (HMX)-based nanocomposites were prepared from their cosolution by spray drying. The particle size and morphology of explosive samples were characterized by scanning electron and transmission electron microscopy. The crystal ingredients of the explosive samples were identified by X-ray diffraction. The impact sensitivity and thermal decomposition properties of these samples were also tested and analyzed. The results show that the HMX/GAP-ETPE microparticles are spherical in shape and range from 0.5 to 3 µm in size. Within them microparticles, β-HMX particles uniformly and discretely disperse in GAP-ETPE binders with the particle size ranging from 50 to 200 nm. The nanocomposite particles exhibit considerably low impact sensitivity, meaning that its drop height is 64.9 cm, which increases by 45.3 cm when compared with raw HMX. Moreover, the nanocomposites are easy to decompose under the thermal stimulus because the exothermic decomposition peak temperature decreases to about 6°C at the same heating rate and apparent activation energy decreases to 11.36 kJ/mol, when compared with the raw HMX. When the decomposition starts, HMX/GAP-ETPE nanocomposites have a higher reaction rate constant than raw HMX at the same temperature.


Articles with similar content:

RDX/GAP-ETPE NANOCOMPOSITES FOR REMARKABLY REDUCED IMPACT SENSITIVITY
International Journal of Energetic Materials and Chemical Propulsion, Vol.15, 2016, issue 3
Baoyun Ye, Hequn Li, Jing-Yu Wang, Chongwei An, Wei Ji
PREPARATION AND PROPERTIES OF OCTOGEN-BASED NANOCOMPOSITE PARTICLES
International Journal of Energetic Materials and Chemical Propulsion, Vol.13, 2014, issue 2
Xiao-Heng Geng, Wenjian Guo, Hequn Li, Jing-Yu Wang, Chongwei An
THERMAL CONDUCTIVITY IMPROVEMENT OF LUNAR REGOLITH SIMULANT
International Heat Transfer Conference 16, Vol.8, 2018, issue
Wei Yao, Xiaochen Lu, Chao Wang, Rong Ma
COMBUSTION PHENOMENA OF BORON CONTAINING PROPELLANTS
International Journal of Energetic Materials and Chemical Propulsion, Vol.4, 1997, issue 1-6
Volker Weiser, K. Menke, Wilhelm Eckl, Th. Rohe, W. Liehmann, Norbert Eisenreich
BEHAVIOR OF HYDROXYL-TERMINATED POLYETHER (HTPE) COMPOSITE ROCKET PROPELLANTS IN SLOW COOK-OFF
International Journal of Energetic Materials and Chemical Propulsion, Vol.7, 2008, issue 3
Rodrigo I. Caro, John M. Bellerby