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Flammability and thermal degradation behaviors of phosphorus‐containing copolyester/BaSO 4 nanocomposites
Author(s) -
Qu MingHai,
Wang YuZhong,
Liu Ya,
Ge XinGuo,
Wang DeYi,
Wang Chuan
Publication year - 2006
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.24304
Subject(s) - copolyester , thermogravimetric analysis , materials science , nanocomposite , flammability , calorimetry , thermal decomposition , chemical engineering , polymer chemistry , differential scanning calorimetry , composite material , organic chemistry , chemistry , polyester , thermodynamics , physics , engineering
A novel phosphorus‐containing copolyester (PET‐ co ‐DDP)/barium sulfate (BaSO 4 ) nanocomposite was synthesized by in situ polymerization. The oxygen index values of the resulting nanocomposites decreased with increasing the content of BaSO 4 nanoparticles, but their antidripping behaviors were improved obviously through the UL‐94 test. The flammability tests based on the cone calorimetry showed that the introduction of nano‐BaSO 4 to the copolyester decreased remarkably the heat release rate and effective heat of combustion. The thermal oxidative decomposition behaviors of PET‐ co ‐DDP/BaSO 4 nanocomposites were studied by a conventional dynamic thermogravimetric analysis in a flowing air atmosphere with a heating rate of 20°C/min. The activation energies determined from Kissinger method, Flynn‐Wall‐Ozawa method, and Friedman method had a same variation trend. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 102: 564–570, 2006