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The effect of polymer matrices on the thermal hazard properties of RDX-based PBXs by using model-free and combined kinetic analysis

Opened Access 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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Autor: Yan, Qui-long
Zeman, S.
Sánchez Jiménez, Pedro Enrique
Zhao, Feng-Qi
Pérez Maqueda, Luis Allan
Malék, J.
Fecha: 2014
Publicado en: Journal of Hazardous Materials, 271, 185-195.
Tipo de documento: Artículo
Resumen: 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 8...
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Cita: Yan, Q., Zeman, S., Sánchez Jiménez, P.E., Zhao, F., Pérez Maqueda, L.A. y Malék, J. (2014). The effect of polymer matrices on the thermal hazard properties of RDX-based PBXs by using model-free and combined kinetic analysis. Journal of Hazardous Materials, 271, 185-195.
Tamaño: 481.3Kb
Formato: PDF

URI: https://hdl.handle.net/11441/69680

DOI: 10.1016/j.jhazmat.2014.02.019

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