This article reports on the morphology, interfacial interaction, thermal stability, and thermal degradation kinetics of polycarbonate (PC)/mesoporous silica (MCM-41) composites with various MCM-41 contents, prepared by melt compounding. The composites with low filler loadings (<0.3 wt%) maintained their transparency because of the well dispersed MCM-41 particles, but at higher filler loadings the composites lost their transparency due to the presence of agglomerates. The presence of agglomerates decreased the thermal stability of PC due to the reduced effectiveness of the particles to immobilize the polymer chains, free radicals, and volatile degradation products.
Sibeko, M., Luyt, A., Saladino, M., Caponetti, E. (2017). Morphology, interfacial interaction, and thermal degradation of polycarbonate/MCM-41 (nano)composites. INTERNATIONAL JOURNAL OF POLYMER ANALYSIS AND CHARACTERIZATION, 1-11 [10.1080/1023666X.2017.1313808].
Morphology, interfacial interaction, and thermal degradation of polycarbonate/MCM-41 (nano)composites
SALADINO, Maria Luisa;CAPONETTI, Eugenio
2017-01-01
Abstract
This article reports on the morphology, interfacial interaction, thermal stability, and thermal degradation kinetics of polycarbonate (PC)/mesoporous silica (MCM-41) composites with various MCM-41 contents, prepared by melt compounding. The composites with low filler loadings (<0.3 wt%) maintained their transparency because of the well dispersed MCM-41 particles, but at higher filler loadings the composites lost their transparency due to the presence of agglomerates. The presence of agglomerates decreased the thermal stability of PC due to the reduced effectiveness of the particles to immobilize the polymer chains, free radicals, and volatile degradation products.File | Dimensione | Formato | |
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