Thermal Analysis of Highly Filled Composites of Polystyrene with Lignin

This paper focuses on the thermal properties of polystyrene/lignin composites over a wide range of lignin content. Blending with and without a compatibilizer (styrene/ethylene/butylene copolymer) was performed in an internal batch mixer to prepare samples between 0 and 80%wt of lignin. From the comp...

Full description

Saved in:
Bibliographic Details
Published in:Polymers & polymer composites 2013-07, Vol.21 (6), p.357-366
Main Authors: REZA BARZEGARI, M, ALEMDAR, Ayse, YAOLIN ZHANG, RODRIGUE, Denis
Format: Article
Language:English
Subjects:
Applied sciences
Composition
Differential scanning calorimetry
Exact sciences and technology
Lignin
Lignin and derivatives
Materials science
Natural polymers
Physicochemistry of polymers
Polystyrene
Scanning electron microscopy
Thermal properties
Thermogravimetric analysis
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:This paper focuses on the thermal properties of polystyrene/lignin composites over a wide range of lignin content. Blending with and without a compatibilizer (styrene/ethylene/butylene copolymer) was performed in an internal batch mixer to prepare samples between 0 and 80%wt of lignin. From the compounds, an extensive thermal study was performed, including thermogravimetric analysis (TGA), differential scanning calorimetry (DSC) and dynamic mechanical thermal analysis (DMTA). TGA results indicated that the thermal stability of polystyrene increases with increasing lignin content. DMTA analysis showed higher storage modulus and lower loss factor with increasing lignin content for the range of temperature studied (30-150 °C). DSC results showed that the lignin/PS composites have a single T g which is close to that of polystyrene. The addition of a compatibilizer up to 2%wt was found to improve the storage modulus of lignin/PS composite, especially at low temperature. Finally, scanning electron microscopy micrographs were used to show the state of interfacial adhesion or compatibility between lignin particles and the polystyrene matrix.
ISSN:0967-3911
1478-2391
DOI:10.1177/096739111302100604