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Optimum Calcium Carbonate Filler Concentration for Flexible Polyurethane Foam Composite
Department of Chemical Engineering University of Lagos, Akoka –Yaba, Lagos, Nigeria.
Department of Metallurgical and Materials Engineering,University of Lagos, Akoka –Yaba, Lagos, Nigeria.
Department of Chemical Engineering,University of Lagos, Akoka –Yaba, Lagos, Nigeria.
- 1 Department of Chemical Engineering University of Lagos, Akoka –Yaba, Lagos, Nigeria.
- 2 Department of Metallurgical and Materials Engineering,University of Lagos, Akoka –Yaba, Lagos, Nigeria.
- 3 Department of Chemical Engineering,University of Lagos, Akoka –Yaba, Lagos, Nigeria.
Journal of Minerals and Materials Characterization and Engineering·Volume 11 (2012)·Pages 311–320·Published 20 March 2012·DOI10.4236/jmmce.2012.113023
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Abstract
The production cost of flexible polyurethane foam is significantly dependent on the cost of polyol, which constitute the largest percentage of materials used in foam production with the characteracterics to induce superior mechanical properties. Suitable fillers that are relatively cheap can be introduced in the foam matrix as replacement for polyol. However, certain compositions of filler have deleterious effect on some relevant mechanical properties of the foam. This paper investigates the effect of CaCO 3 filler in flexible polyurethane foam matrix for the dual purposes of achieving sustained mechanical properties and reduction in production cost. The optimum CaCO 3 composition was found to be 20 wt % representing a concomitant 18.54% reduction in cost of production.
KeywordspolyurethaneCaCO<sub>3</sub>tensile strengthelongation at breakindentation hardness.
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