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Studies on the properties of rice-husk-filled pp composites: effect of maleated PP

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Studies on the properties of rice-husk-filled pp composites: effect of maleated PP

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Título Studies on the properties of rice-husk-filled pp composites: effect of maleated PP
Autor Rosa, Simone Maria Leal
Santos, Evelise Fonseca dos
Ferreira, Carlos Arthur
Nachtigall, Sonia Marli Bohrz
Abstract Rice husk is a by-product of rice milling process that usually finds inadequate final disposal (burning, land filling). Thermoplastics composites filled with rice husk flour are materials that offer an alternative for using this agricultural resource viewing the production of low dense materials with some specific properties. In this work composites of polypropylene (PP) and rice husk flour (RHF) were prepared by melt extrusion. Maleic anhydride-modified PP (MAPP) was added as a coupling agent. It was verified that tensile strength decreased with filler loading. The presence of MAPP improved this property showing a strong dependence on the MAPP/RHF ratio (MAPP/RHF = 0.03 produced the best results). The density of the composites slightly increased with filler and coupling agent in comparison to pure PP. The presence of MAPP diminished more than 20% water uptake in highly-loaded composites.
Contido em Materials research : ibero-american journal of materials. São Carlos, SP. Vol. 12, no. 3 (May 2009), p. 333-338
Assunto Casca de arroz
Compósitos
Polipropileno
[en] Coupling agent
[en] Density
[en] Polymer-matrix composites
[en] Wettability
Origem Nacional
Tipo Artigo de periódico
URI http://hdl.handle.net/10183/107598
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