Prediction of Thermal Behavior of Polycarbonate/Cerium Oxide Composite Films. Issue 8 (29th June 2021)

• Record Type: Journal Article
• Authors: Larosa, Claudio; Saldābola, Rūta; Zicāns, Jānis; Merijs Meri, Remo; Eggenhöffner, Roberto; Converti, Attilio
• Is Part Of: Chemical engineering & technology. Volume 44:Issue 8(2021)
• Page Start: 1534
• Page End: 1540
• Publication Date: 2021-06-29
• Subjects: Arrhenius equation -- Cerium oxide nanoparticles -- Differential scanning calorimetry -- Polycarbonate films -- Thermogravimetric analysis; Chemical engineering -- Periodicals; Chemical processes -- Periodicals; 660.05
• DOI: 10.1002/ceat.202100101
• Languages: English
• ISSNs: 0930-7516

Abstract

Abstract: 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. Abstract : Differential scanning calorimetry and thermogravimetric analysis were performed to predict the flammability properties of thin polycarbonate in composites with different concentrations of cerium oxide nanoparticles. A thermal model was formulated to predict the burning behavior of the composite film assuming constant heat transmission to samples.