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Thermal decomposition kinetic and flame retardancy of CaCO 3 filled recycled polyethylene terephthalate/recycled polypropylene blend
Author(s) -
Thumsorn Supaphorn,
Yamada Kazushi,
Leong Yew Wei,
Hamada Hiroyuki
Publication year - 2012
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.37673
Subject(s) - polypropylene , materials science , flammability , limiting oxygen index , activation energy , thermal decomposition , polyethylene terephthalate , decomposition , thermal stability , kinetics , polyethylene , composite material , chemical engineering , degradation (telecommunications) , polymer chemistry , pyrolysis , chemistry , organic chemistry , char , telecommunications , physics , quantum mechanics , computer science , engineering
The flammability and thermal decomposition kinetics of recycled polyethylene terephthalate (RPET)/recycled polypropylene (RPP) blends filled with CaCO 3 were investigated. The thermal decomposition kinetics were determined by using various models such as the Flynn‐Wall‐Ozawa, Kissinger, and Kim‐Park, which would define the thermal stability of the blends through the determination of their decomposition activation energies. Meanwhile, the flammability of the materials was also determined through the limiting oxygen index (LOI) method. It was found that blends with higher RPP content or contain CaCO 3 exhibited higher resistance to thermal degradation judging from their higher activation energies. Furthermore, it was found that the isoconversion kinetic of the Flynn‐Wall‐Ozawa model could provide a better estimation of the decomposition activation energy at each stage of degradation. © 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013