On the use of olive leaf powder to improve the performance of water-blown rigid polyurethane foam composites

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dc.authorid0000-0002-8113-5534
dc.authorid0000-0002-4406-9048
dc.contributor.authorTuna, Sibel
dc.contributor.authorKurtlu, Meral Akkoyun
dc.date.accessioned2026-02-08T15:15:44Z
dc.date.available2026-02-08T15:15:44Z
dc.date.issued2025
dc.departmentBursa Teknik Üniversitesi
dc.description.abstractNowadays, polyurethane (PU) foams were preferred in a broad extent of applications particularly due to their lowest thermal conductivity values satisfying the demand for energy efficiency while their use as natural filler added foam composites can reduce the polymer content allowing a more environmentally friendly production. The purpose of this work was to research the impact of olive leaf powder of various particle sizes and weight ratios on the microstructure, thermal, and mechanical properties of rigid polyurethane foam composites. All results exhibited optimum mechanical, thermal, and microstructure properties for the finest particle sized and 3 wt% added foam composites. This foam composite demonstrated an enhancement by 54%, 41%, and 61% for the tensile strength, elongation at break, and compression strength values, respectively. The thermal degradation temperature of the foam composites was also improved in correlation with the reduction of the glass transition temperature of the soft segments while the glass transition of the hard segments increased. Concerning the thermal conductivity results, the highest reduction by 11% was observed for the finest particles filled at 5 wt%, compared to the pure rigid PU foam, in correlation with the cell size showing a maximum reduction by 18% for the same composite.
dc.identifier.doi10.1177/0021955X251357248
dc.identifier.endpage263
dc.identifier.issn0021-955X
dc.identifier.issn1530-7999
dc.identifier.issue4
dc.identifier.scopus2-s2.0-105010500051
dc.identifier.scopusqualityQ2
dc.identifier.startpage245
dc.identifier.urihttps://doi.org/10.1177/0021955X251357248
dc.identifier.urihttps://hdl.handle.net/20.500.12885/5936
dc.identifier.volume61
dc.identifier.wosWOS:001517914100001
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherSage Publications Ltd
dc.relation.ispartofJournal of Cellular Plastics
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzWOS_KA_20260207
dc.subjectNatural filler
dc.subjectolive leaf powder
dc.subjectrigid polyurethane foam
dc.subjectthermal insulation
dc.subjectmechanical properties
dc.titleOn the use of olive leaf powder to improve the performance of water-blown rigid polyurethane foam composites
dc.typeArticle

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