Bio-based Rigid Polyurethane Foam Prepared from Apricot Stone Shell-based Polyol for Thermal Insulation Application - Part 2: Morphological, Mechanical, and Thermal Properties

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dc.contributor.authorFidan, Muhammed Said
dc.contributor.authorErtas, Murat
dc.date.accessioned2026-02-12T21:02:49Z
dc.date.available2026-02-12T21:02:49Z
dc.date.issued2020
dc.departmentBursa Teknik Üniversitesi
dc.description.abstractThe procedure for the liquefaction of apricot stone shells was reported in Part 1. Part 2 of this work determines the morphological, mechanical, and thermal properties of the bio-based rigid polyurethane foam composites (RPUFc). In this study, the thermal conductivity, compressive strength, compressive modulus, thermogravimetric analysis, flammability tests (horizontal burning and limited oxygen index (LOI)) in the flame retardants), and scanning electron microscope (SEM) (cell diameter in the SEM) tests of the RPUFc were performed and compared with control samples. The results showed the thermal conductivity (0.0342 to 0.0362 mW/mK), compressive strength (10.5 to 14.9 kPa), compressive modulus (179.9 to 180.3 kPa), decomposition and residue in the thermogravimetric analysis (230 to 491 °C, 15.31 to 21.61%), UL-94 and LOI in the flame retardants (539.5 to 591.1 mm/min, 17.8 to 18.5%), and cell diameter in the SEM (50.6 to 347.5 pm) of RPUFc attained from liquefied biomass. The results were similar to those of foams obtained from industrial RPUFs, and demonstrated that bio-based RPUFc obtained from liquefied apricot stone shells could be used as a reinforcement filler in the preparation of RPUFs, specifically in construction and insulation materials. Moreover, liquefied apricot stone shell products have potential to be fabricated into rigid polyurethane foam composites. © 2020. All Rights Reserved.
dc.description.sponsorshipCentral Research Laboratory, CRL
dc.identifier.doi10.15376/BIORES.15.3.6080-6094
dc.identifier.endpage6094
dc.identifier.issue3
dc.identifier.scopus2-s2.0-85113184986
dc.identifier.scopusqualityQ3
dc.identifier.startpage6080
dc.identifier.urihttps://doi.org/10.15376/BIORES.15.3.6080-6094
dc.identifier.urihttps://hdl.handle.net/20.500.12885/6563
dc.identifier.volume15
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherNorth Carolina State University
dc.relation.ispartofBioResources
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsAll Open Access; Gold Open Access
dc.snmzKA_Scopus_20260212
dc.subjectApricot stone shell
dc.subjectCharacterization
dc.subjectMorphological properties
dc.subjectRigid polyurethane foam
dc.subjectThermal properties
dc.titleBio-based Rigid Polyurethane Foam Prepared from Apricot Stone Shell-based Polyol for Thermal Insulation Application - Part 2: Morphological, Mechanical, and Thermal Properties
dc.typeArticle

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