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Study of flame retardation of polycarbonate modified by polyhedral oligomeric silsesquioxane and caged bicyclic phosphate

  • Beijing Institute of Technology

Research output: Contribution to journalArticlepeer-review

Abstract

The flame-retarded polycarbonate (PC) has been made with octaphenyl polyhedral silsesquioxane (OPS) and/or caged bicyclic phosphate (Trimer). Thermal gravimetric analysis (TGA), Fourier-transform infrared (FTIR), TGA-FTIR, limiting oxygen index (LOI), and mechanical tests have been employed to characterize the modified PC. The additives of OPS and Trimer in PC have been proved to be effective flame-retardants because of the synergistic interaction between the elements of P and Si. The role of OPS and Trimer in PC degradation are different: OPS participates in the charring of PC, while Trimer makes PC degrade in advance. In addition, OPS and Trimer induced obvious differences in the mechanical properties of PC. Copyright.

Original languageEnglish
Pages (from-to)480-486
Number of pages7
JournalJournal of Beijing Institute of Technology (English Edition)
Volume19
Issue number4
Publication statusPublished - Dec 2010

Keywords

  • Caged bicyclic phosphate
  • Flame retardancy
  • Polycarbonate
  • Polyhedral oligomeric silsesquioxane

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