Physico-Mechanical and Morphological Study of Starch/Polyvinylalcohol Based Biocomposite Films Reinforced with Microcrystalline Cellulose

Kunal Das, N. R. Bandyopadhyay, Dipa Ray*, Debarati Mitra, Suparna Sengupta, S. P. Sengupta, Amar K. Mohanty, Manjusri Misra

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Micro crystalline (MC) cellulose particles were prepared from cotton slivers by acid hydrolysis. Starch/Polyvinyl alcohol (PVA) based biocomposite films reinforced with microcrystalline cellulose were prepared by solution casting method, incorporating glycerol as a plasticizer. Reinforcements were done by using cellulose microcrystals with different weight percent for example 2, 5, 10 and 15. These biocomposite films were characterized by X-ray diffraction (XRD), mechanical characterization, permeability test, water uptake behavior, scanning electron microscopy (SEM) and transmission electron microscopy (TEM). Mechanical properties, moisture uptake and water vapor transmission rate of the biocomposite films were found to be significantly dependent on the MC cellulose content of the films. SEM investigation was undertaken to determine the size of the MC cellulose particles formed and also to investigate the dispersion of MC cellulose particles in the starch/PVA blend matrix.

Original languageEnglish
Pages (from-to)100-107
Number of pages8
JournalJournal of biobased materials and bioenergy
Volume3
Issue number1
DOIs
Publication statusPublished - Mar 2009

Keywords

  • Microcrystalline Cellulose
  • Starch
  • Polyvinylalcohol
  • Biocomposite Films
  • Mechanical Properties
  • STARCH
  • CRYSTALLITES
  • MICROFIBRILS

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