Effect of lubricant on mechanical and rheological properties of compatibilized PP/sawdust composites

dc.contributor.authorBETTINI, S. H. P.
dc.contributor.authorJOSEFOVICH, M. P. P. M.
dc.contributor.authorMUNOZ, P. A. R.
dc.contributor.authorLOTTI, C.
dc.contributor.authorMATTOSO, L. H. C.
dc.date.accessioned2022-01-12T22:01:33Z
dc.date.available2022-01-12T22:01:33Z
dc.date.issued2013-05-15
dc.description.abstractAn investigation was performed regarding the effect of compatibilizer and lubricant concentrations on the mechanical and rheological properties of polypropylene/sawdust composites using two-level factorial central composite design. Maleic anhydride grafted PP (PP-g-MA) was used as compatibilizer and the lubricant used was Struktol TPW 113. Composites without these additives were also prepared. Processing was carried out in a co-rotating twin-screw extruder coupled to a Haake rheometer. Mechanical properties were assessed from tensile tests and rheological properties were evaluated by oscillatory measurements and melt flow index (MFI) test. Tensile strength improved with increasing compatibilizer concentration in the composites and reached a maximum value in the absence of lubricant. When both additives were present tensile strength decreased, suggesting a possible interaction between lubricant and compatibilizer, reducing efficiency of the latter. The general trend observed for rheological results was a decrease in complex viscosity, storage modulus and MFI when both additives were present. © 2013 Elsevier Ltd.
dc.description.firstpage800
dc.description.issuenumber2
dc.description.lastpage806
dc.description.volume94
dc.identifier.citationBETTINI, S. H. P.; JOSEFOVICH, M. P. P. M.; MUNOZ, P. A. R.; LOTTI, C.; MATTOSO, L. H. C. Effect of lubricant on mechanical and rheological properties of compatibilized PP/sawdust composites. Carbohydrate Polymers, v. 94, n. 2, p. 800-806, Mayo, 2013.
dc.identifier.doi10.1016/j.carbpol.2013.01.080
dc.identifier.issn0144-8617
dc.identifier.urihttps://repositorio.fei.edu.br/handle/FEI/4075
dc.relation.ispartofCarbohydrate Polymers
dc.rightsAcesso Aberto
dc.subject.otherlanguageCompatibilization
dc.subject.otherlanguageComposites
dc.subject.otherlanguageLubricant
dc.subject.otherlanguagePolypropylene
dc.subject.otherlanguageSawdust
dc.titleEffect of lubricant on mechanical and rheological properties of compatibilized PP/sawdust composites
dc.typeArtigo
fei.scopus.citations36
fei.scopus.eid2-s2.0-84874935367
fei.scopus.subjectCentral composite designs
fei.scopus.subjectComplex viscosity
fei.scopus.subjectHaake rheometers
fei.scopus.subjectMaleic anhydride grafted pp
fei.scopus.subjectMelt flow index
fei.scopus.subjectOscillatory measurements
fei.scopus.subjectRheological property
fei.scopus.subjectTwin screw extruders
fei.scopus.updated2024-05-01
fei.scopus.urlhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84874935367&origin=inward
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