Journal
THERMOCHIMICA ACTA
Volume 440, Issue 2, Pages 111-121Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.tca.2005.10.016
Keywords
flax fibre; polypropylene; thermal stability; crystallinity; transcrystallization
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The effect of fibre treatments on thermal stability of flax fibre and crystallization of flax fibre/polypropylene composites was investigated. For thermal stability study, flax fibres have been treated using maleic anhydride, maleic anhydride polypropylene copolymer, vinyltrimethoxy silane and alkalization. In order to compare thermal stability of flax fibres thermogravimetry (TG) analysis has been used. Kinetic parameters have been determined by Kissinger method. Results showed that all treatments improved thermal stability of flax fibres. For crystallinity analysis, three different techniques have been used, differential scanning calorimetry analysis (DSC), pressure-volume-temperature (PVT) measurements for analysis of volume shrinkage and polarized optical microscopy (POM). All techniques results showed that addition of flax fibre increased crystallization rate. Besides, depending on fibre surface treatment and crystallization temperature, flax fibre/PP composites can show transcrystallinity. (C) 2005 Elsevier B.V. All rights reserved.
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