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dc.contributor.authorLee, Gwanwon-
dc.contributor.authorJang, Han Gyeol-
dc.contributor.authorCho, Se Youn-
dc.contributor.authorJoh, Han-Ik-
dc.contributor.authorLee, Doh C.-
dc.contributor.authorKim, Jaewoo-
dc.contributor.authorLee, Sung Ho-
dc.date.accessioned2024-11-07T11:00:32Z-
dc.date.available2024-11-07T11:00:32Z-
dc.date.created2024-11-07-
dc.date.issued2024-03-
dc.identifier.issn2666-6820-
dc.identifier.urihttps://pubs.kist.re.kr/handle/201004/151009-
dc.description.abstractIn this study, to address environmental challenges stemming from plastic wastes, we produced carbon material derived from polyethylene (PE-C) using thermal oxidation and carbonization processes. Prior to thermal oxidation, e-beam irradiation was employed to enhance oxidation reactions which facilitated transformation of linear chains to cyclic ladder structures, resulting in a threefold increase in carbonization yield compared to conventional methods. Our analysis using XRD, Raman spectroscopy, XPS, and SEM revealed that PE-C exhibited a crystal structure similar to commercial CB (C-CB). However, it featured three times more oxygen functional groups on its surface and consisted of individual particles without forming aggregates or agglomerates. We incorporated PE-C into a PA6 polymer matrix to create composite materials with various compositions, systematically comparing their electrical, thermal, and mechanical properties to C-CB/PA6. PE-C outperformed C-CB in terms of mechanical properties (65 MPa vs. 41 MPa) due to its surface oxygen functional groups, uniform dispersion even at high loadings, and a rough surface. Moreover, PE-C exhibited a lower surface area, which reduced interfacial thermal resistance and consequently enhanced thermal conductivity, resulting in a 16 % improvement compared to C-CB at 30 wt%.-
dc.languageEnglish-
dc.publisherElsevier B.V.-
dc.titlePolyethylene-derived high-yield carbon material for upcycling plastic wastes as a high-performance composite filler-
dc.typeArticle-
dc.identifier.doi10.1016/j.jcomc.2023.100429-
dc.description.journalClass1-
dc.identifier.bibliographicCitationComposites Part C: Open Access, v.13-
dc.citation.titleComposites Part C: Open Access-
dc.citation.volume13-
dc.description.isOpenAccessY-
dc.description.journalRegisteredClassscopus-
dc.identifier.scopusid2-s2.0-85181838584-
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KIST Article > 2024
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