The effect of polymer matrices on the thermal hazard properties of RDX-based PBXs by using model-free and combined kinetic analysis
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- Authors:
- YAN, Qi-Long
ZEMAN, Svatopluk
SANCHEZ JIMENEZ, P. E
ZHAO, Feng-Qi
PEREZ-MAQUEDA, L. A
MALEK, Jiří - Author Affiliations:
- Institute of Energetic Materials, Faculty of Chemical Technology. University of Pardubice, 53210 Pardubice, Czech Republic
Instituto de Ciencia de Materiales de Sevilla, CSIC-Universidad de Sevilla, C Américo Vespucio No. 49, 41092 Sevilla, Spain
Science and Technology on Combustion and Explosion Laboratory, Xi'an Modern Chemistry Research Institute, 710065 Xi'an, China
Department of Physical Chemistry. Faculty of Chemical Technology. University of Pardubice, 53210 Pardubice, Czech Republic - Source:
- Journal of hazardous materials (Print). 271:185-195
- Publication Date:
- 2014-01-01
- Language:
- English
- Abstract:
- In this paper, the decomposition reaction models and thermal hazard properties of 1,3,5-trinitro-1,3,5-triazinane (RDX) and its PBXs bonded by Formex P1, Semtex 1A. C4. Viton A and Fluorel polymer matrices have been investigated based on isoconversional and combined kinetic analysis methods. The established kinetic triplets are used to predict the constant decomposition rate temperature profiles, the critical radius for thermal explosion and isothermal behavior at a temperature of 82 C. It has been found that the effect of the polymer matrices on the decomposition mechanism of RDX is significant resulting in very different reaction models. The Formex P1. Semtex and C4 could make decomposition process of RDX follow a phase boundary controlled reaction mechanism, whereas the Viton A and Fluorel make its reaction model shifts to a two dimensional Avrami-Erofeev nucleation and growth model. According to isothermal simulations, the threshold cook-off time until loss of functionality at 82 C for RDX-C4 and RDX-FM is less than 500 days, while it is more than 700 days for the others. Unlike simulated isothermal curves, when considering the charge properties and heat of decomposition, RDX-FM and RDX-C4 are better than RDX-SE in storage safety at arbitrary surrounding temperature.
- Notes:
- Chemical engineering<br><br>Pollution
- Subjects:
- Environment
Environnement
Pollution
Sciences exactes et technologie
Exact sciences and technology
Sciences appliquees
Applied sciences
Genie chimique
Chemical engineering
Sécurité
Safety
Pollution
Composé organique
Organic compounds
Compuesto orgánico
Carcinogène
Carcinogen
Carcinógeno
Champ température
Temperature distribution
Campo temperatura
Cinétique
Kinetics
Cinética
Explosif
Explosives
Explosivo
Explosion thermique
Thermal explosion
Explosión térmica
Hexogène
Hexogen
Hexogeno
Modélisation
Modeling
Modelización
Mutagène
Mutagen
Mutágeno
Mécanisme réaction
Reaction mechanism
Mecanismo reacción
Méthode analyse
Analysis method
Método análisis
Risque accidentel
Hazard
Riesgo accidente
Stockage
Storage
Almacenamiento
Sécurité
Safety
Seguridad
Isothermal
PBXs
RDX
Reaction models - Format:
- Academic Journal
- Database:
- PASCAL Archive
- Journal:
- Journal of hazardous materials (Print)
- Volume:
- 271
- Page Start:
- 185
- Page Count:
- 11
- ISSN:
- 03043894
- Publisher:
- Kidlington: Elsevier, 2014.
- Document Type:
- Article
- Physical Description:
- print, 51 ref
