Mechanical properties, morphology and thermal degradation of a biocomposite of polypropylene and curaua fibers: coupling agent effect

dc.creatorMano, Barbara
dc.creatorAraújo, Joyce R
dc.creatorPaoli, Marco-A. De
dc.creatorWaldman, Walter R.
dc.creatorSpinace, Márcia A.
dc.date2013-01-01
dc.date2014-07-17T17:31:21Z
dc.date2015-11-26T13:01:29Z
dc.date2014-07-17T17:31:21Z
dc.date2015-11-26T13:01:29Z
dc.date.accessioned2018-03-28T21:02:22Z
dc.date.available2018-03-28T21:02:22Z
dc.identifierPolímeros. Associação Brasileira de Polímeros, v. 23, n. 2, p. 161-168, 2013.
dc.identifier0104-1428
dc.identifierS0104-14282013000200004
dc.identifier10.4322/S0104-14282013005000025
dc.identifierhttp://dx.doi.org/10.4322/S0104-14282013005000025
dc.identifierhttp://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-14282013000200004
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/25801
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/25801
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1239284
dc.descriptionBiocomposites of polymers with vegetal fibers have a broad spectrum of applications due to their high specific properties in comparison to their counterparts made with fiberglass. Polypropylene, PP, composites with curaua fiber compatibilized with different concentrations of maleic anhydride grafted polypropylene, PP-g-MA, were characterized according to their mechanical properties, morphologies and thermal stabilities in oxidative and inert atmospheres. The composites were prepared by single screw extrusion and injection molded specimens were used for testing. The composite with 20 wt % of curaua fiber with and without compatibilizer presented improved mechanical properties compared to pure PP. The use of PP-g-MA as a compatibilizer significantly increased fiber/matrix adhesion, however, the mechanical properties were only slightly improved in comparison with composites without compatibilizer. We observed an improvement in thermal stability of the composites, compared to that expected from the weighted average of the individual components, both under inert and oxidative atmospheres. Furthermore, the thermal stability improved under inert atmosphere as a function of the concentration of compatibilizer. In this situation, indeed, there was a different shift of the weight loss processes owing to the presence of the compatibilizer.
dc.description161
dc.description168
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.languageen
dc.publisherAssociação Brasileira de Polímeros
dc.relationPolímeros
dc.rightsaberto
dc.sourceSciELO
dc.subjectThermal degradation
dc.subjectcoupling agent
dc.subjectcuraua fibres
dc.subjectbiocomposites
dc.titleMechanical properties, morphology and thermal degradation of a biocomposite of polypropylene and curaua fibers: coupling agent effect
dc.typeArtículos de revistas


Este ítem pertenece a la siguiente institución