INFLUENCE OF PYROLYSIS RAMP RATE ON CHAR YIELD FOR DIFUNCTIONAL FURAN BASED BENZOXAZINE

Michael J. Chauby, Giuseppe R. Palmese

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    Polybenzoxazines are novel phenolic polymers that have found application as the precursor matrix in carbon-carbon composites due to their high char yield. A furan-based difunctional benzoxazine was selected for this study due to its high theoretical char yield of 74 %. The furan-based difunctional benzoxazine was synthesized using bisphenol A, furfurylamine and paraformaldehyde. Temperature ramp rate during carbonization was investigated to determine its influence on char yield and carbon microstructure. A maximum char yield of 54.8 % was observed for pyrolysis ramp rate of 1 °C min-1. The char yield decreased 6 % between ramp rates of 1 and 20 °C min-1. The carbon microstructure was investigated using scanning electron microscopy (SEM). As pyrolysis ramp rate increases, an increase in the microporosity can be seen. The results show that slower ramp rates increase char yield and decrease microporosity for a furan-based difunctional benzoxazine.

    Original languageEnglish (US)
    Title of host publicationSAMPE 2022 Conference and Exhibition
    PublisherSoc. for the Advancement of Material and Process Engineering
    ISBN (Electronic)9781934551417
    StatePublished - 2022
    EventSAMPE 2022 Conference and Exhibition - Charlotte, United States
    Duration: May 23 2022May 26 2022

    Publication series

    NameInternational SAMPE Technical Conference
    Volume2022-May

    Conference

    ConferenceSAMPE 2022 Conference and Exhibition
    Country/TerritoryUnited States
    CityCharlotte
    Period5/23/225/26/22

    All Science Journal Classification (ASJC) codes

    • Materials Science(all)
    • Mechanics of Materials
    • Mechanical Engineering

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