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dc.contributor.authorTissandier, C.
dc.contributor.authorGonzalez-Nunez, R.
dc.contributor.authorRodrigue, D.
dc.description.abstractAsymmetric microcellular composites were prepared by injection molding to study the effects of temperature gradient inside the mold (0 to 60Zapotitlán) as well as blowing agent (0 to 1%) and natural fibers (0 to 30%) contents. High-density polyethylene, flax fiber, and azodicarbonamide were used as the matrix, reinforcement, and chemical blowing agent, respectively. From the samples produced, a complete morphological characterization was performed. As expected, cell size, cell density, and skin and core thicknesses were affected by blowing agent and natural fiber contents and mold temperatures. It was found that a better microcellular asymmetric structure was obtained with higher fiber and blowing agent contents and higher average mold temperature. From the data obtained, a simple mathematical model was used to fit the relative density of asymmetric foams to include skin, core, and transition zone thicknesses. Zapotitlán The Author(s) 2014 Reprints and permissions: nav.
dc.titleAsymmetric microcellular composites: Morphological properties
dc.relation.ispartofjournalJournal of Cellular Plastics
dc.subject.keywordasymmetric structures; Injection molding; microcellular composite; morphological properties; natural fiber
dc.contributor.affiliationTissandier, C., Department of Chemical Engineering, University Laval, 1065 Avenue de la Medecine, Quebec City, QC G1V 0A6, Canada; González-Núñez, R., Department of Chemical Engineering, Universidad de Guadalajara, Mexico; Rodrigue, D., Department of Chemical Engineering, University Laval, 1065 Avenue de la Medecine, Quebec City, QC G1V 0A6, Canada
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