Effect of sawdust surface treatment and compatibilizer addition on mechanical behavior, morphology, and moisture uptake of polypropylene/sawdust composites

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dc.contributor.authorBettini S.H.P.
dc.contributor.authorBonse B.C.
dc.contributor.authorMelo E.A.
dc.contributor.authorMunoz P.A.R.
dc.date.accessioned2019-08-20T00:17:32Z
dc.date.available2019-08-20T00:17:32Z
dc.date.issued2010
dc.description.abstractPolypropylene/sawdust composites were investigated to assess the effect of sawdust surface treatment and compatibilizer addition on polymer/fiber adhesion. Two silane coupling agents were used for sawdust surface treatment: vinyl-tris (2-methoxyethoxy) silane and (3- aminopropyl)triethoxysilane. Maleic anhydride grafted polypropylene was used as compatibilizer. Composites were prepared in a corotating twin-screw extruder coupled to a Haake torque rheometer and submitted to tensile and bending tests as well as scanning electron microscopy (SEM). Moisture uptake tests were also performed. Results showed that incorporation of untreated sawdust to polypropylene (PP) caused reduction in composite tensile strength and increase in stiffness. When the only treatment used was surface modification with silane coupling agents, no significant changes were observed in mechanical properties. However, when compatibilizer was added to the composites, tensile strength was increased, and % elongation at break reduced, indicating improved system compatibility. The composite presenting the highest increase in tensile strength was that containing sawdust treated with amino silane in addition to the compatibilizer. SEM analyses corroborated the mechanical property results. © 2009 Society of Plastics Engineers.
dc.description.firstpage978
dc.description.issuenumber5
dc.description.lastpage985
dc.description.volume50
dc.identifier.citationBettini, Silvia H.P.; Bonse, Baltus C.; Melo, Elis A.; Muñoz, Pablo. Effect of Sawdust Surface Treatment and Compatibilizer Addition on Mechanical Behavior, Mophology, and Moisture Uptake of Polypropylene/Sawdust Composites. Polymer Engineering and Science, v. 50, p. 978-985, 2010.
dc.identifier.doi10.1002/pen.21617
dc.identifier.issn0032-3888
dc.identifier.urihttps://repositorio.fei.edu.br/handle/FEI/2208
dc.relation.ispartofPolymer Engineering and Science
dc.rightsAcesso Restrito
dc.titleEffect of sawdust surface treatment and compatibilizer addition on mechanical behavior, morphology, and moisture uptake of polypropylene/sawdust composites
dc.typeArtigo
fei.scopus.citations24
fei.scopus.eid2-s2.0-77951852535
fei.scopus.subjectAminopropyl
fei.scopus.subjectAminosilanes
fei.scopus.subjectComposite tensile strength
fei.scopus.subjectCorotating twin-screw extruders
fei.scopus.subjectElongation at break
fei.scopus.subjectMaleic anhydride grafted polypropylene
fei.scopus.subjectMechanical behavior
fei.scopus.subjectMoisture uptake
fei.scopus.subjectSEM
fei.scopus.subjectSEM analysis
fei.scopus.subjectSilane coupling agent
fei.scopus.subjectSurface modification
fei.scopus.subjectSystem compatibility
fei.scopus.subjectTorque rheometer
fei.scopus.subjectTriethoxysilane
fei.scopus.updated2024-03-04
fei.scopus.urlhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=77951852535&origin=inward
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