Interfacial improvements in poly(3-hydroxybutyrate)-flax fibre composites with hydrogen bonding additives

Wong, S, Shanks, R and Hodzic, A 2004, 'Interfacial improvements in poly(3-hydroxybutyrate)-flax fibre composites with hydrogen bonding additives', Composites Science and Technology, vol. 64, pp. 1321-1330.


Document type: Journal Article
Collection: Journal Articles

Title Interfacial improvements in poly(3-hydroxybutyrate)-flax fibre composites with hydrogen bonding additives
Author(s) Wong, S
Shanks, R
Hodzic, A
Year 2004
Journal name Composites Science and Technology
Volume number 64
Start page 1321
End page 1330
Total pages 9
Publisher Elsevier
Abstract Improvement of the interfacial properties of composites consisting of poly(3-hydroxybutyrate) and flax fibres was provided by addition of 4,4'-thiodiphenol (TDP) at various concentrations up to 10% v/v. The additive TDP is known to form hydrogen bonds with many, functional groups. The flax fibres were initially treated with TDP before being used to prepare the composites. The effects of the TDP on the functional groups of the fibres and the matrix were monitored using Fourier transform infrared spectroscopy and it was confirmed that hydrogen bonding occurred in the composites, which consequently brought about advantageous changes in the dynamic flexural properties. The thermal stability determined by thermogravimetry showed a favourable shift of degradation temperatures to higher values and the thermal properties of the matrix determined from differential scanning calorimetry were also affected. With the aid of scanning electron microscopy and polarised optical microscopy, the composites were shown to exhibit improvement in the fibre-matrix bonding and the dynamic mechanical properties of the matrix changed from brittle to ductile as the TDP content increased.
Subject Chemical Characterisation of Materials
DOI - identifier 10.1016/j.compscitech.2003.10.012
Copyright notice Copyright © 2003 Elsevier Ltd All rights reserved.
ISSN 0266-3538
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