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Effect of Gum Acacia (GA) on Tensile Properties of Biodegradable Chitosan (CS)/Poly (vinyl alcohol) (PVA) Polymer Blend Films

Author Affiliations

  • 1Department of Chemistry, Karnatak Science College, Dharwad, Karnataka, India
  • 2Department of Materials Science, Mangalore University, Mangalgangotri, Karnataka, India
  • 3Department of Computer Science, Maharani Science College for Women, Bangalore, Karnataka, India
  • 4P.G. Department of Studies in Chemistry, Karnatak University, Dharwad, Karnataka, India

Res. J. Material Sci., Volume 4, Issue (5), Pages 5-8, June,16 (2016)


Biodegradable blend films of gum acacia (GA) doped poly (vinyl alcohol) and chitosan (PVA/CS) were prepared by solvent casting technique. Mechanical properties of obtained films were assessed by tensile test. Addition of gum acacia (GA) to the equal quantity of PVA/CS, blend film shows improved tensile strength (Ts) and young’s modulus (Ym) compared to PVA/CS (50/50) blend. Further addition of gum acacia (GA) presented the decreased tensile strength and young’s modulus. The increase in tensile strength and young’s modulus of the blend containing gum acacia suggested that interfacial strength could be improved. The addition of gum acacia to the blend proves that gum acacia (GA) can improve the interfacial adhesion between chitosan and poly (vinyl Alcohol).


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