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Morphology and mechanical properties of unidirectional sisal-epoxy composites
2002 (English)In: Journal of Applied Polymer Science, ISSN 0021-8995, E-ISSN 1097-4628, Vol. 84, no 13, 2358-2365 p.Article in journal (Refereed) Published
Abstract [en]

Plant fibers are of increasing interest for use in composite materials. They are renewable resources and waste management is easier than with glass fibers. In the present study, longitudinal stiffness and strength as well as morphology of unidirectional sisal-epoxy composites manufactured by resin transfer molding (RTM) were studied. Horseshoe-shaped sisal fiber bundles (technical fibers) were nonuniformly distributed in the matrix, In contrast to many wood composites, lumen was not filled by polymer matrix. Technical sisal fibers showed higher effective modulus when included in the composite material than in the technical fiber test (40 GPa as compared with 24 GPa). In contrast, the effective technical fiber strength in the composites was estimated to be around 400 MPa in comparison with a measured technical fiber tensile strength of 550 MPa. Reasons for these phenomena are discussed.

Place, publisher, year, edition, pages
2002. Vol. 84, no 13, 2358-2365 p.
Keyword [en]
natural fiber, sisal, composites, resin transfer molding (RTM), mechanical properties, morphology, reinforced polyester, polymer composites, fiber
Identifiers
URN: urn:nbn:se:kth:diva-21501ISI: 000175295200003OAI: oai:DiVA.org:kth-21501DiVA: diva2:340199
Note
QC 20100525Available from: 2010-08-10 Created: 2010-08-10 Last updated: 2017-12-12Bibliographically approved

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Berglund, Lars A.

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