Structural, morphological and micromechanical characterization of gelatin-bacterial cellulose natural composites

Franck Quero, Abigail Coveney, Anna E. Lewandowska, Paulo Díaz-Calderón, Robert M. Richardson, Koon Yang Lee, Stephen J. Eichhorn, M. Ashraf Alam, Javier Enrione

Research output: Contribution to conferencePaper

Abstract

All rights reserved. The effect of adding bacterial cellulose (BC) to gelatin was investigated. Structural and morphological information from the resulting composite materials was obtained from powder X-ray diffraction, scanning electron microscopy and 2D Raman imaging, revealing an in-homogeneous dispersion of BC within the gelatin matrix. The optical properties of the composite materials were investigated by UV-visible spectrophotometry. The results showed that by adding 10 wt.% BC to gelatin, visible transparency was reduced by ~35 % and UV opacity was increased by ~40 %, compared to gelatin. For the first time, the molecular interaction between gelatin and BC was investigated by Raman spectroscopy showing that it is a relevant tool to quantify the micromechanical interfacial interaction between gelatin and BC.
Original languageAmerican English
StatePublished - 1 Jan 2015
EventICCM International Conferences on Composite Materials -
Duration: 1 Jan 2015 → …

Conference

ConferenceICCM International Conferences on Composite Materials
Period1/01/15 → …

Keywords

  • Bacterial cellulose
  • Composites
  • Gelatin
  • Interfaces

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