Role of hemp fiber addition on thermal stability, heat insulation, air permeability and cellular structural features of rigid polyurethane foam

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dc.authorid0000-0002-9244-026Xen_US
dc.authorid0000-0001-8152-9122en_US
dc.contributor.authorSoykan, Uğur
dc.contributor.authorKaya, Şenol
dc.date.accessioned2023-07-27T12:07:54Z
dc.date.available2023-07-27T12:07:54Z
dc.date.issued2023en_US
dc.departmentBAİBÜ, Yeniçağa Yaşar Çelik Meslek Yüksekokulu, Gıda Kalite Kontrolü ve Analizi Bölümüen_US
dc.description.abstractIn this current study, rigid polyurethane foams (RPUFs) composites were prepared using different percentage (3, 6, 9 and 12%) of the hemp fibers via one-shut one-step polymerization method. The influences of the hemp fiber addition on the RPUFs were investigated meticulously by means of Fourier-transform infrared spectroscopy (FTIR), thermo gravimetric analysis (TGA), thermal conductivity measurement and scanning electron microscopy (SEM) techniques by evaluating the alternations in the chemical structures of the component, thermal stability, apparent density, insulation performance and cellular topology of the produced samples. The structural analysis revealed that there existed the strong secondary chemical bonds between the functional groups belonging to the components and, depending on that, the improvement in the thermal stability of the foam samples was recorded accompanied by the formation of the better interfacial adhesion. Furthermore, thermal conductivity values of the hemp fiber-loaded RPUFs were observed to increase regularly with the increasing of the content level of the hemp fibers. This was explained by enhancement in the bulk phase conduction level depending of the apparent density rising, reduction in CO2 concentration inside cells as well as the formation of the distorted cellular structures. The obtained air permeability results displayed that the hemp fibers incorporated successfully with RPUF structure, which provides the occurrence of the novel micro barriers and pathways limiting the passage of the air throughout the matrix. The taken scanning electron microscopy images also indicated that the cellular morphology and dimensional stability of the produced foams affected negatively by the hemp fiber addition. At high contents, the wrinkled, non-uniform and irregular cellular structures were observed with ruptured and collapsed walls and struts.en_US
dc.identifier.citationSoykan, U., & Kaya, S. (2023). Role of hemp fiber addition on thermal stability, heat insulation, air permeability and cellular structural features of rigid polyurethane foam. Cellular Polymers, 42(2), 88-104.en_US
dc.identifier.doi10.1177/02624893231152383
dc.identifier.endpage104en_US
dc.identifier.issn0262-4893
dc.identifier.issn1478-2421
dc.identifier.issue2en_US
dc.identifier.scopus2-s2.0-85147275762en_US
dc.identifier.scopusqualityQ3en_US
dc.identifier.startpage88en_US
dc.identifier.urihttps://doi.org/10.1177/02624893231152383
dc.identifier.urihttps://hdl.handle.net/20.500.12491/11385
dc.identifier.volume42en_US
dc.identifier.wosWOS:000917781900001en_US
dc.identifier.wosqualityQ4en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.institutionauthorSoykan, Uğur
dc.institutionauthorKaya, Şenol
dc.language.isoenen_US
dc.publisherSage Publications Ltden_US
dc.relation.ispartofCellular Polymersen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectHemp Fiberen_US
dc.subjectRigid Polyurethane Foamen_US
dc.subjectThermal Conductivityen_US
dc.subjectAir Permeability and Cellular Structureen_US
dc.subjectMechanical-Propertiesen_US
dc.subjectCompositesen_US
dc.titleRole of hemp fiber addition on thermal stability, heat insulation, air permeability and cellular structural features of rigid polyurethane foamen_US
dc.typeArticleen_US

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