Novel aluminum phosphate/cyanate ester composites: Thermodegradation behaviors and kinetic analyses

Authors

  • Zhouqiang Sun,

    1. Department of Materials Engineering, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, Jiangsu 215021, China
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  • Aijuan Gu,

    Corresponding author
    1. Department of Materials Engineering, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, Jiangsu 215021, China
    • Department of Materials Engineering, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, Jiangsu 215021, China
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  • Guozheng Liang,

    1. Department of Materials Engineering, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, Jiangsu 215021, China
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  • Shankai Dai,

    1. Department of Materials Engineering, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, Jiangsu 215021, China
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  • Li Yuan

    1. Department of Materials Engineering, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, Jiangsu 215021, China
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Abstract

Thermodegradation behaviors of novel aluminum phosphate/cyanate ester (AlPO4(KH550)/CE) composites were studied in detail. Results show that thermodegradation behaviors and kinetic parameters of AlPO4(KH550)/CE composites are greatly dependent on the AlPO4(KH550) loading. The addition of AlPO4(KH550) into CE resin changes the thermodegradation mechanism (mainly at the temperature lower than 450°C) and degradation process from two steps to three steps. Comparing with CE resin, AlPO4(KH550)/CE composites have lower initial degradation temperature and greatly higher char yield. Besides, for each thermodegradation step, the more the AlPO4 content, the smaller the activation energy value is. All reasons leading to these outcomes are investigated intensively. © 2009 Wiley Periodicals, Inc. J Appl Polym Sci, 2009

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