Thermal degradation of polystyrene composites. Part I. The effect of brominated polyepoxy and antimony oxide


Kaya H., HACALOĞLU J.

JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS, cilt.105, ss.301-308, 2014 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 105
  • Basım Tarihi: 2014
  • Doi Numarası: 10.1016/j.jaap.2013.11.017
  • Dergi Adı: JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
  • Sayfa Sayıları: ss.301-308

Özet

Thermal degradation of polystyrene (PS) involving brominated polyepoxy (BA) and antimony oxide (PS/BE/Sb2O3) was studied systematically via direct pyrolysis mass spectrometry. Thermal decomposition of brominated polyepoxy was started by loss of end groups. The relative yields of high mass thermal degradation products of PS and the product distribution of brominated polyepoxy and antimony oxide were changed noticeably during the pyrolysis of PS/BE/Sb2O3 composite. Its thermal decomposition was initiated by the interactions of Sb2O3 with BE, and shifted to lower temperatures. Interactions of flame retardants with PS caused degradation of PS at lower temperatures to a certain extent. Loss of HBr and H2O, in the temperature region where main PS decomposition took place, confirmed chemical interactions between the flame retardants and PS. (C) 2013 Elsevier B.V. All rights reserved.