Investigations of the Nucleating Agent Effects on Polypropylene of Pumice from Three Distinct Areas in Türkiye

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dc.authorid0000-0002-2078-2586
dc.authorid0000-0002-1916-457X
dc.authorid0000-0003-2733-7191
dc.contributor.authorOzdemir, Yasin
dc.contributor.authorAtagur, Metehan
dc.contributor.authorSen, Ibrahim
dc.contributor.authorSever, Kutlay
dc.date.accessioned2026-02-08T15:15:59Z
dc.date.available2026-02-08T15:15:59Z
dc.date.issued2025
dc.departmentBursa Teknik Üniversitesi
dc.description.abstractThis study investigates the mechanical and thermal properties of polypropylene (PP) composites incorporating pumice, a naturally occurring porous volcanic rock with high SiO2 content, sourced from three regions in T & uuml;rkiye (Nev & scedil;ehir, Ala & ccedil;at & imath;, and K & uuml;tahya). Pumice was processed to particle sizes below 10 microns to maximize nucleating effectiveness, and composites were fabricated by melt compounding. The distinct mineralogical composition, porosity, and surface chemistry of the pumice samples enabled systematic evaluation of how regional variations influence crystallization and mechanical performance. A multi-analytical characterization approach, including thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), X-ray diffraction (XRD), and standardized mechanical tests (tensile, flexural, and impact), was applied. Results revealed that Ala & ccedil;at & imath; pumice at 0.1 wt% increased the impact strength of PP by about 11%, while maintaining stiffness. This demonstrates that pumice, unlike conventional fillers, can simultaneously enhance toughness and rigidity. Thermal analysis confirmed improved stability, with higher degradation onset and maximum decomposition temperatures observed in pumice-filled PP. DSC results indicated that certain pumice loadings promoted nucleation and increased crystallinity, while excessive amounts disrupted chain packing. SEM examinations confirmed uniform dispersion at low loadings, with agglomeration at higher levels reducing impact resistance. This work provides the first systematic demonstration of pumice powders as effective nucleating agents in PP, combining regional mineralogical diversity with measurable performance benefits. These findings indicate that pumice can serve as a sustainable, low-cost alternative to conventional nucleating agents, with potential applications in polymer components requiring improved toughness and thermal stability.
dc.description.sponsorshipIzmir Katip Celebi University, Department of Scientific Research Projects [2022-GAP-MMF-0024]
dc.description.sponsorshipThis study was financially supported by Izmir Katip Celebi University, Department of Scientific Research Projects (BAP Project number: 2022-GAP-MUMF-0024).
dc.identifier.doi10.3390/polym17212928
dc.identifier.issn2073-4360
dc.identifier.issue21
dc.identifier.pmid41228688
dc.identifier.scopus2-s2.0-105021642548
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.3390/polym17212928
dc.identifier.urihttps://hdl.handle.net/20.500.12885/6072
dc.identifier.volume17
dc.identifier.wosWOS:001612609300001
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.language.isoen
dc.publisherMdpi
dc.relation.ispartofPolymers
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzWOS_KA_20260207
dc.subjectpumice
dc.subjectnucleating agent
dc.subjectpolypropylene (PP)
dc.titleInvestigations of the Nucleating Agent Effects on Polypropylene of Pumice from Three Distinct Areas in Türkiye
dc.typeArticle

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