Journal of the American Oil Chemists' Society

, Volume 84, Issue 1, pp 65–72

Physical Properties of Polyurethanes Produced from Polyols from Seed Oils: II. Foams

  • Suresh S. Narine
  • Xiaohua Kong
  • Laziz Bouzidi
  • Peter Sporns
Original Paper

Abstract

Rigid polyurethane (PU) foams were prepared using three North American seed oil starting materials. Polyol with terminal primary hydroxyl groups synthesized from canola oil by ozonolysis and hydrogenation based technology, commercially available soybean based polyol and crude castor oil were reacted with aromatic diphenylmethane diisocyanate to prepare the foams. Their physical and thermal properties were studied and compared using dynamic mechanical analysis and thermogravimetric analysis techniques, and their cellular structures were investigated by scanning electron microscope. The chemical diversity of the starting materials allowed the evaluation of the effect of dangling chain on the properties of the foams. The reactivity of soybean oil-derived polyols and of unrefined crude castor oil were found to be lower than that of the canola based polyol as shown by their processing parameters (cream, rising and gel times) and FTIR. Canola-PU foam demonstrated better compressive properties than Soybean-PU foam but less than Castor-PU foam. The differences in performance were found to be related to the differences in the number and position of OH-groups and dangling chains in the starting materials, and to the differences in cellular structure.

Keywords

Canola oil Castor oil Mechanical and thermal properties Polyurethanes Polyols Rigid foams from plant oils Soybean oil 

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Copyright information

© AOCS 2006

Authors and Affiliations

  • Suresh S. Narine
    • 1
  • Xiaohua Kong
    • 1
  • Laziz Bouzidi
    • 1
  • Peter Sporns
    • 1
  1. 1.Alberta Lipid Utilization Program, Department of Agricultural Food and Nutritional Science, 4-10 Agriculture/Forestry CentreUniversity of AlbertaEdmontonCanada

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