Polyurethane Foams Obtained from Castor Oil-based Polyol and Filled with Wood Flour
By M. Mosiewicki, G.A. Dell'Arciprete, M. I. Aranguren, N. Marcovich. 2009
175 citations recorded by the source corpus.
A natural polyol was prepared from castor oil by alcoholysis with triethanolamine. The oil and the oil-based polyol were characterized by infrared spectroscopy and through the analytical determination of their functional groups, both techniques indicating that the hydroxyl content increased significantly after the alcoholysis reaction. The modified oil was subsequently used as the polyol component in the formulation of rigid polyurethane foams. Wood flour was chosen to be incorporated as filler in these materials. Physical, thermal, and mechanical properties of the neat and reinforced foams were measured, analyzed, and compared to a reference commercial system. The chemical reaction between wood flour and isocyanate strongly affected the composites’ response to thermo-gravimetric tests. Compression modulus and yield strength decreased as wood flour content increased. The effect of the foam density on the compression properties was also investigated.
Subfields: Polymers and Plastics
View Paper: https://www.semanticscholar.org/paper/02ad264aa7a7d706e3ef8e952c24b5e03505110f
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Citations in the corpus
- The influence of crude glycerol and castor oil-based polyol on the structure and performance of rigid polyurethane-polyisocyanurate foams (2017, background): “Compressive performance of foamed materials is strictly correlated with their apparent density, since during compression the stiffness of the material arises from buckling of cell walls and higher density is obviously related to the more compact cellular structure (Mosiewicki et al., 2009).”