Modification of Poly(Lactic Acid) Matrix by Chemically Modified Flax Fiber Bundles and Poly(Ethylene Glycol) Plasticizer

A. Arbelaiz*, J. Trifol, C. Peña-Rodriguez, J. Labidi, A. Eceiza

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingChapterScientificpeer-review

2 Citations (Scopus)

Abstract

Modifications of poly(lactic acid) (PLA) by chemically modified flax fiber bundles and poly(ethylene glycol) (PEG) plasticizer was carried out. First flax fiber bundles were subjected to different silane treatment conditions. Fourier transform infrared (FTIR) spectroscopy revealed that the covalent bonding between silane agent and flax fiber occurs only in the presence of water and water/ethanol solvents. The intensity of the signal related to silane amino groups clearly increased with the decrease of fiber/silane ratio and an increase in the reaction time. The mechanical behavior of the composites showed that after silane treatment flax fiber/PLA interfacial adhesion was enhanced. Regarding the plasticizer effect of PEG, all PLA/PEG blends showed lower glass transition temperatures and the deformation at break increased compared to neat PLA. Finally, the tensile properties of PLA matrix modified with both silane-treated flax fibers and PEG plasticizer were studied.

Original languageEnglish
Title of host publicationPolyethylene-Based Biocomposites and Bionanocomposites
PublisherWiley
Pages429-445
Number of pages17
ISBN (Electronic)9781119038467
ISBN (Print)9781119038450
DOIs
Publication statusPublished - 12 Dec 2016
MoE publication typeNot Eligible

Keywords

  • Fourier transform infrared spectroscopy
  • Matrix modification
  • Polymer-matrix composites
  • Surface treatments

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