Surface properties and hardness of polypropylene composites filled with sunflower stalk flour

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dc.authoridTR176549en_US
dc.authoridTR115829en_US
dc.contributor.authorKaymakcı, Alperen
dc.contributor.authorAyrılmış, Nadir
dc.contributor.authorGüleç, Türker
dc.date.accessioned2015-07-20T08:28:25Z
dc.date.available2015-07-20T08:28:25Z
dc.date.issued2013
dc.departmentAÇÜen_US
dc.description.abstractThe effects of agricultural flour content on surface roughness, wettability, and surface hardness of injection molded polypropylene (PP) composites was investigated. Four content levels of the waste sunflower stalk flour (WSF) were mixed with the PP with and without maleic anhydride grafted PP (MAPP) as a coupling agent. Contact angle measurements were performed using a goniometer connected with a digital camera. Three roughness parameters, average roughness (Ra), mean peak-to-valley height (Rz), and maximum roughness (Rmax), were used to evaluate surface roughness. The surface roughness increased with increasing WSF content while their wettability decreased. The unfilled (neat) PP composites had the lowest surface roughness, while the roughest surface was found for the PP composites filled with 60 wt% WSF. The surface smoothness of the composites was noticeably increased by addition of the compatibilizer MAPP while the wettability was decreased. The scratch hardness of the PP composites increased significantly with increasing WSF. The incorporation of the coupling agent increased the scratch hardness of the specimens. The Brinell hardness increased with increasing filler loading. At similar filler loading the composites with MAPP had lower Brinell hardness value than those without MAPP.
dc.identifier.citationKaymakçı, A., Ayrılmış, N., & Güleç, T. (2013). Surface properties and hardness of polypropylene composites filled with sunflower stalk flour. BioResources, 8(1), 592-602.
dc.identifier.endpage602
dc.identifier.issue1
dc.identifier.scopusqualityQ3
dc.identifier.startpage592
dc.identifier.urihttps://hdl.handle.net/11494/929
dc.identifier.volume8
dc.identifier.wosqualityN/A
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.institutionauthorGüleç, Türker
dc.language.isoenen_US
dc.publisherNorth Carolina State Univ Dept Wood & Paper Scien_US
dc.relation.ispartofBioresources
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectPolypropylene compositesen_US
dc.subjectWaste sun flower stalken_US
dc.subjectSurface Roughnessen_US
dc.subjectWettabilityen_US
dc.subjectHardnessen_US
dc.titleSurface properties and hardness of polypropylene composites filled with sunflower stalk flouren_US
dc.typeArticle

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