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Prediction of Thermal Behavior of Polycarbonate/Cerium Oxide Composite Films
Author(s) -
Larosa Claudio,
Saldābola Rūta,
Zicāns Jānis,
Merijs Meri Remo,
Eggenhöffner Roberto,
Converti Attilio
Publication year - 2021
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.202100101
Subject(s) - thermogravimetric analysis , polycarbonate , materials science , differential scanning calorimetry , cerium oxide , thermal decomposition , composite material , composite number , arrhenius equation , chemical engineering , oxide , cerium , thermodynamics , chemistry , organic chemistry , metallurgy , activation energy , physics , engineering
Thermal effects in polycarbonate (PC) induced by lanthanide oxide nanoparticles (NPs) dispersed by blending were studied using thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC). DSC data proved the occurrence of solvent‐induced crystallization of polymer doped with cerium oxide (ceria). TGA was performed to predict PC flammability properties in composites with 5–15 wt % ceria NPs at various heating rates. Decomposition was represented by first‐order reactions and the Arrhenius equation. A model was formulated for thin samples subject to uniform heat irradiation, which is based on PC softening and decomposition into several products. This is an attempt to predict composite film burning behavior assuming constant heat transmission to samples.