Thermally Conductive Polypropylene Nanocomposites Based on Mechanically Exfoliated Boron Nitride Nanosheets

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dc.authorid0000-0002-9379-8554
dc.contributor.authorHejazi, Mohamad-anas
dc.contributor.authorTavasli, Aybuke
dc.contributor.authorBader, Sofiene
dc.contributor.authorTrabzon, Levent
dc.contributor.authorNavidfar, Amir
dc.date.accessioned2026-04-04T18:55:19Z
dc.date.available2026-04-04T18:55:19Z
dc.date.issued2025
dc.departmentİstanbul Bilgi Üniversitesi
dc.description.abstractThermally conductive (TC) nanocomposites have been used increasingly in miniaturized electronic devices to hinder heat accumulation. By leveraging the lightweight nature of polymeric matrices and incorporating TC fillers, such as hexagonal boron nitride (hBN), high-thermally conductive materials with higher tensile strength can be developed. In this study, mechanically exfoliated hBN (20 wt%) was compounded with polypropylene (PP) to fabricate TC nanocomposites. Parameters such as sonication power, sonication time, and particle size of the hBN were optimized, and the mechanical and thermal properties of the nanocomposites, along with alkyl modification, in comparison to raw and exfoliated boron nitride nanosheets (BNNS), were examined. BNNS-based PP demonstrated improved tensile strength and elastic modulus, accompanied by a decrease in ductility. A high elastic modulus (3386 MPa-ABN/PP20.40-2) was obtained from the alkyl-modified samples. The sample containing 20 wt% BNNS (BNNS/PP20.40-3), which was subjected to 1500 W of sonication for 8 h, demonstrated an improved thermal conductivity of 0.54 W/mK, compared to ABN/PP20.40-2 (0.4 W/mK). This reflects a 125% and 80% enhancement compared to pure PP (0.24 W/mK) and smaller-sized hBN-based samples coded BNNS/PP20.750 (0.304 W/mK), respectively.
dc.description.sponsorshipTrkiye Bilimsel ve Teknolojik Arascedil;timath;rma Kurumu [22AG018]
dc.description.sponsorshipThe authors greatly acknowledge support from the Scientific and Technological Research Council of Turkiye (TUBITAK) 1004 Project (Grant No: 22AG018).
dc.identifier.doi10.1002/pc.70737
dc.identifier.doi10.1002/pc.70737
dc.identifier.issn0272-8397
dc.identifier.issn1548-0569
dc.identifier.scopus2-s2.0-105024253113
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1002/pc.70737
dc.identifier.urihttps://hdl.handle.net/11411/10356
dc.identifier.wosWOS:001632871600001
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherWiley
dc.relation.ispartofPolymer Composites
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WoS_20260402
dc.snmzKA_Scopus_20260402
dc.subjectBoron Nitride Nanosheet
dc.subjectHexagonal Boron Nitride
dc.subjectPolymer Nanocomposite
dc.subjectPolypropylene
dc.subjectThermal Conductivity
dc.titleThermally Conductive Polypropylene Nanocomposites Based on Mechanically Exfoliated Boron Nitride Nanosheets
dc.typeArticle

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