Mechanical and tribological performance of FDM-printed PLA/hBN nanocomposites: effect of dispersion method

Basit Öğe Kaydı
dc.contributor.authorSertkaya, Selva
dc.contributor.authorUysal, Emrah
dc.contributor.authorAslan, Enes
dc.contributor.authorSirin, Senol
dc.date.accessioned2026-07-01T11:39:49Z
dc.date.available2026-07-01T11:39:49Z
dc.date.issued2026
dc.departmentDüzce Üniversitesi
dc.description.abstractPurposeThis study aims to investigate the effects of adding a minimal amount (0.5 Wt.%) of hexagonal boron nitride (hBN) nanoparticles to polylactic acid (PLA) and evaluate how two different dispersion methods, namely, dry mixing and ethanol-assisted physical blending, influence the mechanical, thermal, morphological and tribological properties of the resulting nanocomposites.Design/methodology/approachPLA/hBN nanocomposites were prepared via two physical mixing routes, extruded into filaments and three-dimensional printed using fused deposition modeling. Mechanical properties were assessed through tensile, Charpy impact and hardness tests. Tribological performance was evaluated via pin-on-disk friction tests. Thermal stability and chemical interactions were analyzed using thermogravimetric analysis, differential thermal analysis and Fourier-transform infrared spectroscopy (FTIR). Morphology and dimensional accuracy were examined using scanning electron microscopy and precision dimensional measurements.FindingsThe incorporation of only 0.5 Wt.% hBN significantly improved key properties of PLA. Tensile strength increased by up to 19.2% with dry mixing and 9.3% with ethanol-assisted mixing. Impact resistance showed remarkable enhancement, rising approximately fourfold for dry-mixed and 4.5-fold for ethanol-mixed composites. The coefficient of friction decreased by 33.8% and 35.3% for dry- and ethanol-mixed specimens, respectively. Thermal stability was maintained, and FTIR confirmed successful hBN integration with indications of interfacial interactions. Ethanol-assisted mixing promoted more homogeneous nanoparticle dispersion, leading to superior impact performance and more stable frictional behavior.Practical implicationsThis work demonstrates that ultralow loadings of hBN can meaningfully enhance PLA's performance, offering a viable and sustainable route to produce high-performance, biodegradable composites suitable for demanding applications in sectors such as aerospace, automotive and precision engineering, where a balance of strength, toughness and tribological performance is required.Originality/valueWhile hBN reinforcement of polymers has been studied, research on ultralow filler concentrations (=0.5 Wt.%) and the direct comparison of simple, scalable dry- versus solvent-assisted physical mixing methods for PLA/hBN composites has been limited. This study provides new insights into how minimal filler content and dispersion methodology critically affect the multifunctional properties of biodegradable nanocomposites, presenting a practical framework for developing high-performance sustainable materials with minimal environmental and processing burden.
dc.identifier.doi10.1108/RPJ-01-2026-0045
dc.identifier.issn1355-2546
dc.identifier.issn1758-7670
dc.identifier.urihttps://doi.org/10.1108/RPJ-01-2026-0045
dc.identifier.urihttps://hdl.handle.net/20.500.12684/23463
dc.identifier.wosWOS:001763473800001
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.language.isoen
dc.publisherEmerald Group Publishing Ltd
dc.relation.ispartofRapid Prototyping Journal
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WOS_20260623
dc.subject[Keyword Not Available]
dc.titleMechanical and tribological performance of FDM-printed PLA/hBN nanocomposites: effect of dispersion method
dc.typeArticle

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