Experimental and modelling studies on the kinetics and mechanisms of thermal degradation of polymethyl methacrylate in nitrogen and air

Talal Fateh, Franck Richard, Thomas Rogaume, P Joseph

    Research output: Contribution to journalArticle

    11 Citations (Scopus)

    Abstract

    Modelling of spread of fires and their extinguishment in solid materials still present a significant challenge. In order to reliably predict the behaviour of a material in a fire scenario, an adequate description of the processes occurring at the gas/solid interface is highly crucial. In this context, those fire scenarios involving polymeric materials are of primary importance because of their increasing use as components in buildings and in transportation. The purpose of this study is to propose an accurate model for the thermal degradation of polymethyl methacrylate (PMMA) by primarily using thermogravimetric analysis (TGA). TGA in non-isothermal conditions, together with Fourier-transform infrared spectroscopy (FT-IR), was applied to investigate the thermal degradation of black PMMA in inert (nitrogen) and oxidizing (air) atmospheres, at different heating rates. The volatile degradation products as well as mass loss history provided sufficient information regarding the kinetics and possible degradation mechanisms of PMMA. A genetic algorithm (GA) was applied to estimate the kinetic parameters, which showed an excellent agreement with corresponding experimental observations for several heating rates and at different atmospheres (0, 10.5, 15 and 21 vol.% O2).
    LanguageEnglish
    Pages423-433
    JournalJournal of Analytical and Applied Pyrolysis
    Volume120
    Early online date25 Jun 2016
    DOIs
    Publication statusPublished - 1 Jul 2016

    Fingerprint

    Polymethyl Methacrylate
    Polymethyl methacrylates
    Pyrolysis
    Nitrogen
    Heating rate
    Kinetics
    Thermogravimetric analysis
    Fires
    Air
    Degradation
    Kinetic parameters
    Fourier transform infrared spectroscopy
    Genetic algorithms
    Gases
    History
    Polymers

    Keywords

    • Polymethyl methacrylate
    • Thermogravimetric analysis
    • Fourier-transform infrared spectroscopy
    • Mechanism of degradation
    • Gaseous phase
    • Pyrolysis model

    Cite this

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    title = "Experimental and modelling studies on the kinetics and mechanisms of thermal degradation of polymethyl methacrylate in nitrogen and air",
    abstract = "Modelling of spread of fires and their extinguishment in solid materials still present a significant challenge. In order to reliably predict the behaviour of a material in a fire scenario, an adequate description of the processes occurring at the gas/solid interface is highly crucial. In this context, those fire scenarios involving polymeric materials are of primary importance because of their increasing use as components in buildings and in transportation. The purpose of this study is to propose an accurate model for the thermal degradation of polymethyl methacrylate (PMMA) by primarily using thermogravimetric analysis (TGA). TGA in non-isothermal conditions, together with Fourier-transform infrared spectroscopy (FT-IR), was applied to investigate the thermal degradation of black PMMA in inert (nitrogen) and oxidizing (air) atmospheres, at different heating rates. The volatile degradation products as well as mass loss history provided sufficient information regarding the kinetics and possible degradation mechanisms of PMMA. A genetic algorithm (GA) was applied to estimate the kinetic parameters, which showed an excellent agreement with corresponding experimental observations for several heating rates and at different atmospheres (0, 10.5, 15 and 21 vol.{\%} O2).",
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    Experimental and modelling studies on the kinetics and mechanisms of thermal degradation of polymethyl methacrylate in nitrogen and air. / Fateh, Talal; Richard, Franck; Rogaume, Thomas; Joseph, P.

    In: Journal of Analytical and Applied Pyrolysis, Vol. 120, 01.07.2016, p. 423-433.

    Research output: Contribution to journalArticle

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    AU - Richard, Franck

    AU - Rogaume, Thomas

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