Copolymer of natural fibre reinforced polyester urethane: Effect on physico-chemical properties through modification to interfacial adhesion

Gabriela Jandikova, Pavel Kucharczyk, N. Miskolczi, Alena Pavelkova, Adriana Kovalcik, Vladimir Sedlarik

Research output: Contribution to journalArticle

Abstract

This work is dedicated to polyester urethane (PEU)-based biocomposites, with special focus placed on techniques for compatibilisation to heighten interfacial adhesion between the PEU matrix and flax fibres. Tests were conducted on the effects of modification so as to increase interfacial adhesion between the flax fibres and the polyester matrix. These tests involved a commercial silane-based compatibilising additive, two experimentally synthesised agents, oleic acid (OA) and di-tert-butyl peroxide (DTBP). Furthermore, the flax fibres underwent acid or alkali treatment. The biocomposites were characterised by gel permeation chromatography, infrared spectroscopy, differential scanning calorimetry (DSC), thermogravimetric analysis (TGA) and scanning electron microscopy (SEM). Mechanical properties were investigated through tensile testing. Biocomposites with a commercial silane-based additive and synthesised agent, based on maleic-anhydride, were assessed as the best solution. Nevertheless, all modifications, excluding alkali treatment of fibres, significantly increased the performance of the material.

Original languageEnglish
Pages (from-to)189-197
Number of pages9
JournalJournal of Polymer Engineering
Volume36
Issue number2
DOIs
Publication statusPublished - Mar 1 2016

Keywords

  • adhesion
  • biocomposite
  • compatibilisation
  • flax
  • polyester urethane

ASJC Scopus subject areas

  • Materials Chemistry
  • Polymers and Plastics
  • Chemical Engineering(all)

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