Experimental validation and numerical modeling of interfacial effects in silanized hexagonal boron nitride (h-BN) reinforced epoxy composites by tailoring silane concentration

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dc.authorid0000-0002-5940-7345
dc.contributor.authorMehdipour, Mostafa
dc.contributor.authorBeylergil, Bertan
dc.contributor.authorYildiz, Mehmet
dc.contributor.authorOkan, Burcu Saner
dc.date.accessioned2026-01-24T12:31:26Z
dc.date.available2026-01-24T12:31:26Z
dc.date.issued2025
dc.departmentAlanya Alaaddin Keykubat Üniversitesi
dc.description.abstractThis study investigates the use of h-BN particles as fillers, focusing on tailoring surface chemistry to enhance the thermal conductivity of epoxy composites. By enriching the interface between h-BN particles with amino-silane groups and the epoxy matrix through controlled surface modification, thermal performance, and interfacial bonding were improved. To achieve a high degree of functionalization, h-BN particles were oxygenated to 13.6 atomic percent (at. %) through thermal treatment, followed by reduction using 3-amino-propyl-3-ethoxy-silane (APTES), which increased the amino content by 3.5% at. % under optimized reaction conditions. During composite manufacturing, 10 wt.% functionalized h-BN particles were reinforced into the epoxy matrix, increasing bulk thermal conductivity by 53%, from 0.2 W/mK to 0.34 W/mK. Heat flux simulations with ANSYS confirmed the interface interactions and thermal performance, with silanized h-BN achieving the highest heat flux of 70 W/mm2, aligning well with experimental results. While silanization improved thermal conductivity by strengthening interfacial bonding between h-BN and the epoxy matrix, it introduced brittleness, making the composites stiffer and more fragile. However, the silanized h-BN composite showed a 57.14% increase in toughness compared to neat h-BN, while the highest flexural modulus of 4126 MPa was achieved with neat h-BN.
dc.description.sponsorshipTurkish Energy Nuclear and Mineral Research Agency-National Boren Research Institute (TENMAK-BOREN) [2020-31-07-15-002]
dc.description.sponsorshipThis project is supported by the Turkish Energy Nuclear and Mineral Research Agency-National Boren Research Institute (TENMAK-BOREN) with the project number 2020-31-07-15-002.
dc.identifier.doi10.1080/09276440.2025.2460344
dc.identifier.endpage1191
dc.identifier.issn0927-6440
dc.identifier.issn1568-5543
dc.identifier.issue8
dc.identifier.scopus2-s2.0-85216774209
dc.identifier.scopusqualityQ1
dc.identifier.startpage1171
dc.identifier.urihttps://doi.org/10.1080/09276440.2025.2460344
dc.identifier.urihttps://hdl.handle.net/20.500.12868/5878
dc.identifier.volume32
dc.identifier.wosWOS:001411787300001
dc.identifier.wosqualityQ3
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherTaylor & Francis Ltd
dc.relation.ispartofComposite Interfaces
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WoS_20260121
dc.subjecth-BN
dc.subjectsilanization
dc.subjectepoxy
dc.subjectthermal conductivity
dc.subjectmechanical properties
dc.titleExperimental validation and numerical modeling of interfacial effects in silanized hexagonal boron nitride (h-BN) reinforced epoxy composites by tailoring silane concentration
dc.typeArticle

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