Thermodynamic properties, decomposition kinetics and reaction models of BCHMX and its Formex bonded explosive

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F11%3A39895818" target="_blank" >RIV/00216275:25310/11:39895818 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.tca.2012.08.018" target="_blank" >http://dx.doi.org/10.1016/j.tca.2012.08.018</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.tca.2012.08.018" target="_blank" >10.1016/j.tca.2012.08.018</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Thermodynamic properties, decomposition kinetics and reaction models of BCHMX and its Formex bonded explosive

Popis výsledku v původním jazyce

A new energetic material, cis-1,3,4,6-tetranitro-octahydroimidazo-[4,5-d]imidazole (BCHMX) and its plastic explosive (PBX) with styrene-butadiene rubber (SBR) binder (Formex type) have been investigated with regard to its thermal decomposition kinetics and reaction models by using DSC, TG and SEM techniques. It was found that the decomposition of BCHMX in dynamic nitrogen could be divided into two steps, while there is only one step for its Formex bonded explosive. The activation energy for decomposition of BCHMX/Formex was obtained to be 221.7 +- 4.99 kJ mol?1 by modified KAS method, while the mean activation energies for pure BCHMX are calculated as 233.0 +- 2.1 kJ mol?1 for first step and 186.0 +- 0.92 kJ mol?1 for the second step. It was further proved that the first decomposition step of BCHMX is autocatalytic, during which the crystal of BCHMX could dissolve in the liquid phase of its thermolysis products on the surface.

Název v anglickém jazyce

Thermodynamic properties, decomposition kinetics and reaction models of BCHMX and its Formex bonded explosive

Popis výsledku anglicky

A new energetic material, cis-1,3,4,6-tetranitro-octahydroimidazo-[4,5-d]imidazole (BCHMX) and its plastic explosive (PBX) with styrene-butadiene rubber (SBR) binder (Formex type) have been investigated with regard to its thermal decomposition kinetics and reaction models by using DSC, TG and SEM techniques. It was found that the decomposition of BCHMX in dynamic nitrogen could be divided into two steps, while there is only one step for its Formex bonded explosive. The activation energy for decomposition of BCHMX/Formex was obtained to be 221.7 +- 4.99 kJ mol?1 by modified KAS method, while the mean activation energies for pure BCHMX are calculated as 233.0 +- 2.1 kJ mol?1 for first step and 186.0 +- 0.92 kJ mol?1 for the second step. It was further proved that the first decomposition step of BCHMX is autocatalytic, during which the crystal of BCHMX could dissolve in the liquid phase of its thermolysis products on the surface.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JY - Střelné zbraně, munice, výbušniny, bojová vozidla

OECD FORD obor

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Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2011

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Thermochimica Acta

ISSN

0040-6031

e-ISSN

—

Svazek periodika

547

Číslo periodika v rámci svazku

—

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

11

Strana od-do

150-160

Kód UT WoS článku

000309900200021

EID výsledku v databázi Scopus

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