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Modeling the thermal decomposition and residual mass of a carbon fiber epoxy matrix composite with a phenomenological approach: Effect of the reaction scheme

Jean Langot, Pablo Chávez‐Gómez, Martin Lévesque, Étienne Robert

Article (2022)

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Abstract

The thermal decomposition of polymer matrix composites is a complex process involving hundreds of reactions and species, which are often modeled with simplified one-step schemes. These schemes can be improved by adding intermediate reactions of different nature (competitive, parallel, and consecutive). However, the optimal number and nature of intermediate reactions are rarely discussed. In this paper, several reaction schemes of increasing complexity have been developed to model the decomposition of a carbon/epoxy composite. The kinetic parameters describing each reaction have been extracted from thermogravimetric analysis (TGA) by means of isoconversional methods. The composite mass loss rate and residual mass have been modeled and compared to TGA and tube furnace data. This research shows that adding parallel or consecutive intermediate reactions improves the agreement against TGA data compared to a single-step model, but only competitive reactions can account for the variation of the residual mass observed in the tube furnace when the heating rate is varied.

Uncontrolled Keywords

carbon/epoxy laminate; isoconversional methods; oxidation; polymer matrix composite (PMC); pyrolysis; reaction mechanism; thermogravimetric analysis (TGA)

Subjects: 2000 Materials science and technology > 2001 Materials structure, properties and testing
2000 Materials science and technology > 2007 Composites
2100 Mechanical engineering > 2100 Mechanical engineering
2100 Mechanical engineering > 2107 Modelling, simulation and finite element methods
Department: Department of Mechanical Engineering
Funders: CONACYT, CRIAQ ENV-708 Project, CRSNG/NSERC
Grant number: CRDPJ478687-15
PolyPublie URL: https://publications.polymtl.ca/10392/
Journal Title: Fire and Materials (vol. 46, no. 1)
Publisher: Wiley
DOI: 10.1002/fam.2974
Official URL: https://doi.org/10.1002/fam.2974
Date Deposited: 18 Jul 2022 16:57
Last Modified: 15 Nov 2022 14:10
Cite in APA 7: Langot, J., Chávez‐Gómez, P., Lévesque, M., & Robert, É. (2022). Modeling the thermal decomposition and residual mass of a carbon fiber epoxy matrix composite with a phenomenological approach: Effect of the reaction scheme. Fire and Materials, 46(1), 262-276. https://doi.org/10.1002/fam.2974

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