Enhanced thermal conductivity of polyethylene nanocomposites with graphene, granulated graphene, graphene nanoplatelet, and their hybrids
<p></p><div> <p>We report enhanced thermal conductivity of of low-density polyethylene (LDPE) with granulated graphene. The morphological analysis of the nanocomposite releveled granulated graphene is dispersed in LDPE and randomly oriented. The melt processing has reduced th...
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2023
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| _version_ | 1864513565617029120 |
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| author | Chaudhry Usman (14778280) |
| author2 | Abdelnasser Mabrouk (14778283) Ahmed Abdala (5743205) |
| author2_role | author author |
| author_facet | Chaudhry Usman (14778280) Abdelnasser Mabrouk (14778283) Ahmed Abdala (5743205) |
| author_role | author |
| dc.creator.none.fl_str_mv | Chaudhry Usman (14778280) Abdelnasser Mabrouk (14778283) Ahmed Abdala (5743205) |
| dc.date.none.fl_str_mv | 2023-03-16T06:22:34Z |
| dc.identifier.none.fl_str_mv | 10.1002/er.7147 |
| dc.relation.none.fl_str_mv | https://figshare.com/articles/journal_contribution/Enhanced_thermal_conductivity_of_polyethylene_nanocomposites_with_graphene_granulated_graphene_graphene_nanoplatelet_and_their_hybrids/22258066 |
| dc.rights.none.fl_str_mv | CC BY 4.0 info:eu-repo/semantics/openAccess |
| dc.subject.none.fl_str_mv | Engineering Resources engineering and extractive metallurgy Energy Engineering and Power Technology Fuel Technology Nuclear Energy and Engineering Renewable Energy, Sustainability and the Environment |
| dc.title.none.fl_str_mv | Enhanced thermal conductivity of polyethylene nanocomposites with graphene, granulated graphene, graphene nanoplatelet, and their hybrids |
| dc.type.none.fl_str_mv | Text Journal contribution info:eu-repo/semantics/publishedVersion text contribution to journal |
| description | <p></p><div> <p>We report enhanced thermal conductivity of of low-density polyethylene (LDPE) with granulated graphene. The morphological analysis of the nanocomposite releveled granulated graphene is dispersed in LDPE and randomly oriented. The melt processing has reduced the filler's lateral size. At 40 wt. % loading of granulated graphene, the nanocomposite thermal conductivioty <i>(κ</i><sub><i>c</i></sub>) reached 2.91 W/m.K, corresponding to ~1000% increase overLDPE. This very high enhancement is attributed to the reduction in the polymer/filler's thermal interfacial resistance due to the graphene sheets' broad size distribution. The experimentally measured <i>κ</i><sub><i>c</i></sub> was compared theoretically predicted. The theoretical model provided reasonable prediction of <i>κ</i><sub><i>c</i></sub> versus the filler loading. Furthermore, hybrid fillers on binary and ternary combinations of graphene, graphene nanoplatelets, and micrographite with granulated graphene were also prepared. The hybrid fillers revealed that fillers with similar shape and different aspect ratios did not display any synergetic <i>κ<sub>c</sub></i>.</p> </div><p></p><h2>Other Information</h2> <p> Published in: International Journal of Energy Research<br> License: <a href="http://creativecommons.org/licenses/by/4.0/" target="_blank">http://creativecommons.org/licenses/by/4.0/</a><br>See article on publisher's website: <a href="http://dx.doi.org/10.1002/er.7147" target="_blank">http://dx.doi.org/10.1002/er.7147</a></p> |
| eu_rights_str_mv | openAccess |
| id | Manara2_228e4d0bc580128145919b02420f7a50 |
| identifier_str_mv | 10.1002/er.7147 |
| network_acronym_str | Manara2 |
| network_name_str | Manara2 |
| oai_identifier_str | oai:figshare.com:article/22258066 |
| publishDate | 2023 |
| repository.mail.fl_str_mv | |
| repository.name.fl_str_mv | |
| repository_id_str | |
| rights_invalid_str_mv | CC BY 4.0 |
| spelling | Enhanced thermal conductivity of polyethylene nanocomposites with graphene, granulated graphene, graphene nanoplatelet, and their hybridsChaudhry Usman (14778280)Abdelnasser Mabrouk (14778283)Ahmed Abdala (5743205)EngineeringResources engineering and extractive metallurgyEnergy Engineering and Power TechnologyFuel TechnologyNuclear Energy and EngineeringRenewable Energy, Sustainability and the Environment<p></p><div> <p>We report enhanced thermal conductivity of of low-density polyethylene (LDPE) with granulated graphene. The morphological analysis of the nanocomposite releveled granulated graphene is dispersed in LDPE and randomly oriented. The melt processing has reduced the filler's lateral size. At 40 wt. % loading of granulated graphene, the nanocomposite thermal conductivioty <i>(κ</i><sub><i>c</i></sub>) reached 2.91 W/m.K, corresponding to ~1000% increase overLDPE. This very high enhancement is attributed to the reduction in the polymer/filler's thermal interfacial resistance due to the graphene sheets' broad size distribution. The experimentally measured <i>κ</i><sub><i>c</i></sub> was compared theoretically predicted. The theoretical model provided reasonable prediction of <i>κ</i><sub><i>c</i></sub> versus the filler loading. Furthermore, hybrid fillers on binary and ternary combinations of graphene, graphene nanoplatelets, and micrographite with granulated graphene were also prepared. The hybrid fillers revealed that fillers with similar shape and different aspect ratios did not display any synergetic <i>κ<sub>c</sub></i>.</p> </div><p></p><h2>Other Information</h2> <p> Published in: International Journal of Energy Research<br> License: <a href="http://creativecommons.org/licenses/by/4.0/" target="_blank">http://creativecommons.org/licenses/by/4.0/</a><br>See article on publisher's website: <a href="http://dx.doi.org/10.1002/er.7147" target="_blank">http://dx.doi.org/10.1002/er.7147</a></p>2023-03-16T06:22:34ZTextJournal contributioninfo:eu-repo/semantics/publishedVersiontextcontribution to journal10.1002/er.7147https://figshare.com/articles/journal_contribution/Enhanced_thermal_conductivity_of_polyethylene_nanocomposites_with_graphene_granulated_graphene_graphene_nanoplatelet_and_their_hybrids/22258066CC BY 4.0info:eu-repo/semantics/openAccessoai:figshare.com:article/222580662023-03-16T06:22:34Z |
| spellingShingle | Enhanced thermal conductivity of polyethylene nanocomposites with graphene, granulated graphene, graphene nanoplatelet, and their hybrids Chaudhry Usman (14778280) Engineering Resources engineering and extractive metallurgy Energy Engineering and Power Technology Fuel Technology Nuclear Energy and Engineering Renewable Energy, Sustainability and the Environment |
| status_str | publishedVersion |
| title | Enhanced thermal conductivity of polyethylene nanocomposites with graphene, granulated graphene, graphene nanoplatelet, and their hybrids |
| title_full | Enhanced thermal conductivity of polyethylene nanocomposites with graphene, granulated graphene, graphene nanoplatelet, and their hybrids |
| title_fullStr | Enhanced thermal conductivity of polyethylene nanocomposites with graphene, granulated graphene, graphene nanoplatelet, and their hybrids |
| title_full_unstemmed | Enhanced thermal conductivity of polyethylene nanocomposites with graphene, granulated graphene, graphene nanoplatelet, and their hybrids |
| title_short | Enhanced thermal conductivity of polyethylene nanocomposites with graphene, granulated graphene, graphene nanoplatelet, and their hybrids |
| title_sort | Enhanced thermal conductivity of polyethylene nanocomposites with graphene, granulated graphene, graphene nanoplatelet, and their hybrids |
| topic | Engineering Resources engineering and extractive metallurgy Energy Engineering and Power Technology Fuel Technology Nuclear Energy and Engineering Renewable Energy, Sustainability and the Environment |