Cellulose

, Volume 20, Issue 2, pp 861–871

Cellulose/iron oxide hybrids as multifunctional pigments in thermoplastic starch based materials

  • M. C. Neves
  • C. S. R. Freire
  • B. F. O. Costa
  • C. Pascoal Neto
  • T. Trindade
Original Paper

DOI: 10.1007/s10570-012-9859-1

Cite this article as:
Neves, M.C., Freire, C.S.R., Costa, B.F.O. et al. Cellulose (2013) 20: 861. doi:10.1007/s10570-012-9859-1

Abstract

Cellulose/iron oxide hybrids were prepared by the controlled hydrolysis of FeC2O4 in the presence of vegetable and bacterial cellulose fibres as substrates. By varying the relative amount of FeC2O4 and NaOH, either hematite or magnetic iron oxides were grown at the cellulose fibres surfaces. This chemical strategy was used for the production of a number of materials, whose coloristic properties associated to their reinforcement role allowed their use as new hybrid pigments for thermoplastic starch (TPS) based products. The TPS reinforced materials were characterized by several techniques in order to evaluate: the morphology and the compatibility between the matrix and the fillers; the mechanical reinforcement effect of the cellulose/iron oxide pigments on TPS and the coloristic properties of the composites. All materials showed good dispersion and strong adhesion for the cellulose/iron oxide nanocomposites in the TPS matrix thus resulting in improved mechanical properties.

Keywords

Thermoplastic starch Cellulose Iron oxides Hybrid nanomaterials Pigments 

Supplementary material

10570_2012_9859_MOESM1_ESM.tif (3.7 mb)
Figure S1. Thermogravimetric curves for TPS composites loaded with 5 % (w/w) in iron oxide/cellulose pigment. (TIFF 3795 kb)

Copyright information

© Springer Science+Business Media Dordrecht 2013

Authors and Affiliations

  • M. C. Neves
    • 1
  • C. S. R. Freire
    • 1
  • B. F. O. Costa
    • 2
  • C. Pascoal Neto
    • 1
  • T. Trindade
    • 1
  1. 1.Department of Chemistry, CICECOUniversity of AveiroAveiroPortugal
  2. 2.CEMDRX, Department of PhysicsUniversity of CoimbraCoimbraPortugal

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