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Investigation of mechanical behavior of wood polymer nanocomposites (WPNs) samples using static vickers microhardness tester

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dc.contributor.authorAşikuzun, Elif
dc.contributor.authorKaymakci, Alperen
dc.date.accessioned2026-01-03T10:32:22Z
dc.date.issued2018-03-23
dc.description.abstractAim of study: In this study, XRD and Vickers microhardness analyses of wood polymer
 nanocomposites (WPNs) materials are carried out in detail. Especially, we are focused on the mechanical
 analysis.
 
 Area of study: Pine wood flour (40 mesh) as lignocellulosic filler obtained from a
 commercial WPC manufacturer (sema wood) in Tekirdag, Turkey are used.
 
 Material and Methods: Polypropylene, nano TiO2 and coupling agent
 are used in the experiments. Depending on the nanocomposite groups, granulated
 polymer, wood flour, nano TiO2 and MAPP are mixed. Then this mixture
 is compounded in a laboratory scale twin-screw extruder at 40 rpm screw speed.
 
 Main results: According to the obtained hardness results, all of the materials show RISE
 (Reverse Indentation Size Effect) behavior. Experimental microhardness results
 are compared with the mathematical models (Meyer's law, Proportional sample
 Resistance (PSR), Elastic/Plastic Deformation (EPD) and Indentation-Induced Cracking (IIC) models) used in the microhardness analysis of materials in the
 literature and the most suitable model for microhardness values of materials
 was determined. According to the models, IIC model is the most
 suitable to determine the micromechanical properties.
 
 Research highlights: Structural and mechanical properties of WPNs materials are investigated. The increase in
 the microhardness values of the all sample depends on the increase of applied
 load. In addition, the microhardness values decrease with
 increased TiO2 concentration in the samples and microhardness
 values reach a saturation region at around for the samples.
dc.description.urihttps://doi.org/10.17475/kastorman.409185
dc.description.urihttps://dergipark.org.tr/en/download/article-file/446464
dc.description.urihttps://dx.doi.org/10.17475/kastorman.409185
dc.description.urihttps://dergipark.org.tr/tr/pub/kastorman/issue/36265/409185
dc.identifier.doi10.17475/kastorman.409185
dc.identifier.endpage74
dc.identifier.issn1303-2399
dc.identifier.openairedoi_dedup___::42a2cb3e1a121d8d3e7ac29958c995d6
dc.identifier.startpage62
dc.identifier.urihttps://hdl.handle.net/20.500.12597/36786
dc.identifier.volume18
dc.identifier.wos000430869200007
dc.publisherKastamonu University
dc.relation.ispartofKastamonu Üniversitesi Orman Fakültesi Dergisi
dc.rightsOPEN
dc.subjectWPNs
dc.subjectVickers microhardness
dc.subjectIIC model
dc.subjectRISE
dc.subjectXRD
dc.subjectWPN
dc.subjectVickers mikrosertlik
dc.subjectIIC modeli
dc.subjectRISE
dc.subjectXRD
dc.titleInvestigation of mechanical behavior of wood polymer nanocomposites (WPNs) samples using static vickers microhardness tester
dc.typeArticle
dspace.entity.typePublication
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Especially, we are focused on the mechanical&#x0D; analysis.&#x0D; &#x0D; Area of study: Pine wood flour (40 mesh) as lignocellulosic filler obtained from a&#x0D; commercial WPC manufacturer (sema wood) in Tekirdag, Turkey are used.&#x0D; &#x0D; Material and Methods: Polypropylene, nano TiO2 and coupling agent&#x0D; are used in the experiments. Depending on the nanocomposite groups, granulated&#x0D; polymer, wood flour, nano TiO2 and MAPP are mixed. Then this mixture&#x0D; is compounded in a laboratory scale twin-screw extruder at 40 rpm screw speed.&#x0D; &#x0D; Main results: According to the obtained hardness results, all of the materials show RISE&#x0D; (Reverse Indentation Size Effect) behavior. Experimental microhardness results&#x0D; are compared with the mathematical models (Meyer's law, Proportional sample&#x0D; Resistance (PSR), Elastic/Plastic Deformation (EPD) and Indentation-Induced Cracking (IIC) models) used in the microhardness analysis of materials in the&#x0D; literature and the most suitable model for microhardness values of materials&#x0D; was determined. According to the models, IIC model is the most&#x0D; suitable to determine the micromechanical properties.&#x0D; &#x0D; Research highlights: Structural and mechanical properties of WPNs materials are investigated. The increase in&#x0D; the microhardness values of the all sample depends on the increase of applied&#x0D; load. 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