Journal of Polymers and the Environment

, Volume 13, Issue 3, pp 279–285 | Cite as

Injection Molded Biocomposites from Soy Protein Based Bioplastic and Short Industrial Hemp Fiber

  • A. K. Mohanty
  • P. Tummala
  • W. Liu
  • M. Misra
  • P. V. Mulukutla
  • L. T. Drzal

Biocomposites from soy based bioplastic and chopped industrial hemp fiber were fabricated using twin-screw extrusion and injection molding process. Soy based bioplastics were prepared through cooking with plasticizer and blending with biodegradable poly(ester amide). Mechanical, thermal properties and fracture surface morphology of the “green”/biocomposites were evaluated with universal testing system (UTS), dynamic mechanical analysis (DMA), Environmental Scanning Electron Microscopy (ESEM). It was found that the tensile strength and modulus, flexural strength and modulus, impact strength and heat deflection temperature of industrial hemp fiber reinforced biocomposites significantly improved. The fracture surfaces showed no signs of matrix on the fiber surface suggesting poor interfacial adhesion.

Key words

Soy protein based bioplastic biofiber mechanical properties injection molding electron microscopy 


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Copyright information

© Springer Science+Business Media, Inc. 2005

Authors and Affiliations

  • A. K. Mohanty
    • 1
  • P. Tummala
    • 2
    • 3
  • W. Liu
    • 2
  • M. Misra
    • 2
  • P. V. Mulukutla
    • 2
  • L. T. Drzal
    • 2
  1. 1.The School of PackagingMichigan State UniversityEast LansingUSA
  2. 2.Composite Materials & Structures CenterMichigan State UniversityEast LansingUSA
  3. 3.QTR, Inc.EvansvilleUSA

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