Journal
MATERIALS & DESIGN
Volume 32, Issue 8-9, Pages 4537-4542Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.matdes.2011.01.022
Keywords
Extrusion; Polymer matrix composites; Thermal
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In this work, solvent blending in combination with extruding are applied to provide polystyrene/silica nanocomposite specimens. Transmission electron microscope (TEM) and scanning electron microscope (SEM) show same nanoparticle dispersion in PS matrix in low to high filler loadings. Differential scanning calorimetry (DSC), dynamic mechanical thermal analyzer (DMTA) and thermogravimetric analyzer (TGA) were used to study the thermophysical characteristic of the nanocomposites in solid state. In addition, the melt state theological behavior of the samples was investigated under constant and zero shear rates. Interestingly, different behaviors were detected in nanocomposites in low and high nanoparticle loadings. In addition, theological characteristics of molten polymer are dramatically affected in samples with low nanosilica concentration while stabilized in high filler loadings. (C) 2011 Published by Elsevier Ltd.
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