Open AccessComparative Kinetics Study of the Thermal and Thermo-Oxidative Degradation of a Polystyrene-Clay Nanocompozite by TGA and DSC
Author(s) -
Ion Dranca,
Nicon Ungur,
Tudor Lupaşcu,
Oleg Petuhov
Publication year - 2010
Publication title -
chemistry journal of moldova
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.275
H-Index - 5
eISSN - 2345-1688
pISSN - 1857-1727
DOI - 10.19261/cjm.2010.05(2).09
Subject(s) - thermogravimetry , differential scanning calorimetry , polystyrene , chemistry , activation energy , degradation (telecommunications) , kinetics , calorimetry , chemical engineering , nanocomposite , thermal analysis , thermal , polymer , organic chemistry , thermodynamics , inorganic chemistry , telecommunications , physics , quantum mechanics , computer science , engineering
The methods of thermogravimetry (TGA) and differential scanning calorimetry (DSC) have been used to study the thermal and thermo-oxidative degradation of polystyrene (PS) and a PS-clay nanocomposite. An advanced isoconversional method has been applied for kinertic analysis. Introduction of the clay phase increasers the activation energy and affects the total heat of degradation, which suggests a change in the reaction mechanism. The obtained kinetic data permit a comparative assessment of the fire resistance of the studied materials.