Korea-Australia Rheology Journal

The Korean Society of Rheology (한국유변학회)
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A rheo-optical investigation of shear-induced morphological changes in biopolymeric blends

  • Puyvelde, P.Van (Department of Chemical Engineering, K.U. Leuven) ;
  • Antonov, Y.A. (Department of Chemical Engineering, K.U. Leuven) ;
  • Moldenaers, P. (Department of Chemical Engineering, K.U. Leuven)
  • Published : 2002.09.01
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Abstract

In this paper, a rheo-optical methodology based on small angle light scattering and polarimetry is applied to investigate in-situ and on a time resolved basis the flow-induced structures in aqueous biopolymeric blends. Water-dextran-gelatin is chosen as an example. It is verified to what extent the laws and scaling relations, originally developed for synthetic polymer blends, are valid for the morphology development in this aqueous biopolymeric mixture. It was observed that under low shear rate conditions, the biopolymeric emulsion can be regarded as a conventional emulsion. However, at high shear rates flow induced homogenization occurs.

Keywords

References

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