Natural fiber reinforced unsaturated polyester composites - An approach on compression molding

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorGiacomini, Nestor Pedro
dc.creatorKnothe, Jürgen
dc.creatorNeto, Octavio Pimenta Reis
dc.creatorLeão, Alcides Lopes
dc.date2014-05-27T11:20:21Z
dc.date2016-10-25T18:17:24Z
dc.date2014-05-27T11:20:21Z
dc.date2016-10-25T18:17:24Z
dc.date2001-12-01
dc.date.accessioned2017-04-06T01:01:00Z
dc.date.available2017-04-06T01:01:00Z
dc.identifierSAE Technical Papers.
dc.identifierhttp://hdl.handle.net/11449/66706
dc.identifierhttp://acervodigital.unesp.br/handle/11449/66706
dc.identifier10.4271/2001-01-3942
dc.identifier2-s2.0-84877546530
dc.identifierhttp://dx.doi.org/10.4271/2001-01-3942
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/888231
dc.descriptionThis work has been performed at Tapetes Sao Carlos-Brazil with the cooperation of the DaimlerChrysler Research Center Team in Ulm - Germany. The objective of the present paper is to report the results obtained with natural fiber reinforced unsaturated polyester (UP) composites, concerning surface quality measurements. The fibers that have been chosen for this work were sisal and curaua. The samples were produced by compression molding technique and afterwards submitted to three different tests, namely: a) thermal aging; b) water absorption and c) artificial weathering. The surface parameters measured before and after the tests were gloss, haze, short and long-waviness. The results have shown that after the tests there is a high loss of gloss, a high increase in haze, and a high increase in short and long-waviness as well. Curaua reinforced composites had a slightly better behavior when compared with sisal reinforced composites. The effect of the presence of filler and the addition of thermoplastic polyester (TP) on the material behavior has not been evidently detected. This result shows that the conventional technology/methods applied to UP-Fiberglass systems cannot be transferred to natural fibers without any modification. The fiber-matrix interaction and its response to the presence of additives must be fully understood before a successful processing route can be developed for painted natural fibers reinforced UP. Copyright © 2001 Society of Automotive Engineers, Inc.
dc.languageeng
dc.relationSAE Technical Papers
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectArtificial weathering
dc.subjectCompression-molding technique
dc.subjectConventional technology
dc.subjectDaimler-chrysler
dc.subjectFiber reinforced
dc.subjectFiber-matrix interaction
dc.subjectGermany
dc.subjectMaterial behavior
dc.subjectProcessing Route
dc.subjectQuality measurements
dc.subjectReinforced composites
dc.subjectResearch center
dc.subjectSurface parameter
dc.subjectThermoplastic polyesters
dc.subjectUnsaturated polyester
dc.subjectCompression molding
dc.subjectEsters
dc.subjectGlass fibers
dc.subjectReinforcement
dc.subjectThermal aging
dc.subjectNatural fibers
dc.titleNatural fiber reinforced unsaturated polyester composites - An approach on compression molding
dc.typeOtro


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