Graphene−Perfluoroalkoxy Nanocomposite with High Through-Plane Thermal Conductivity Fabricated by Hot-Pressing
With the rapid development of electronics and portable devices, polymer nanocomposites with high through-plane thermal conductivity (TC) are urgently needed. In this work, we fabricated graphene nanosheets−perfluoroalkoxy (GNs−PFA) composite sheets with high through-plane TCs via...
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| Format: | Article |
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MDPI AG
2019-09-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/9/9/1320 |
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| author | Xinru Zhang Xiaoyu Xie Xinzhi Cai Zeyi Jiang Ting Gao Yujie Ren Jian Hu Xinxin Zhang |
| author_facet | Xinru Zhang Xiaoyu Xie Xinzhi Cai Zeyi Jiang Ting Gao Yujie Ren Jian Hu Xinxin Zhang |
| author_sort | Xinru Zhang |
| collection | DOAJ |
| description | With the rapid development of electronics and portable devices, polymer nanocomposites with high through-plane thermal conductivity (TC) are urgently needed. In this work, we fabricated graphene nanosheets−perfluoroalkoxy (GNs−PFA) composite sheets with high through-plane TCs via hot-pressing followed by mechanical machining. When the GNs content exceeded 10 wt%, GNs were vertically aligned in the PFA matrix, and the through-plane TCs of nanocomposites were 10−15 times higher than their in-plane TCs. In particular, the composite with 30 wt% GNs exhibited a through-plane TC of 25.57 W/(m·K), which was 9700% higher than that of pure PFA. The composite with 30 wt% GNs was attached to the surface of a high-power light-emitting diode (LED) to assess its heat-dissipation capability. The composite with vertically aligned GNs lowered the LED surface temperature by approximately 16 °C compared with pure PFA. Our facile, low-cost method allows for the large-scale production of GNs−PFA nanocomposites with high through-plane TCs, which can be used in various thermal-management applications. |
| first_indexed | 2024-12-10T05:27:36Z |
| format | Article |
| id | doaj.art-4f4e6dcf6fd44700be2810bb4b5fc37e |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-12-10T05:27:36Z |
| publishDate | 2019-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-4f4e6dcf6fd44700be2810bb4b5fc37e2022-12-22T02:00:38ZengMDPI AGNanomaterials2079-49912019-09-0199132010.3390/nano9091320nano9091320Graphene−Perfluoroalkoxy Nanocomposite with High Through-Plane Thermal Conductivity Fabricated by Hot-PressingXinru Zhang0Xiaoyu Xie1Xinzhi Cai2Zeyi Jiang3Ting Gao4Yujie Ren5Jian Hu6Xinxin Zhang7School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, ChinaSchool of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, ChinaSchool of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, ChinaSchool of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, ChinaSchool of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, ChinaChina Energy Conservation and Environmental Protection Group, Beijing 100082, ChinaChina Energy Conservation and Environmental Protection Group National Machinery United Electric Power (Ningxia) Co., Ltd., Yinchuan 750011, ChinaSchool of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, ChinaWith the rapid development of electronics and portable devices, polymer nanocomposites with high through-plane thermal conductivity (TC) are urgently needed. In this work, we fabricated graphene nanosheets−perfluoroalkoxy (GNs−PFA) composite sheets with high through-plane TCs via hot-pressing followed by mechanical machining. When the GNs content exceeded 10 wt%, GNs were vertically aligned in the PFA matrix, and the through-plane TCs of nanocomposites were 10−15 times higher than their in-plane TCs. In particular, the composite with 30 wt% GNs exhibited a through-plane TC of 25.57 W/(m·K), which was 9700% higher than that of pure PFA. The composite with 30 wt% GNs was attached to the surface of a high-power light-emitting diode (LED) to assess its heat-dissipation capability. The composite with vertically aligned GNs lowered the LED surface temperature by approximately 16 °C compared with pure PFA. Our facile, low-cost method allows for the large-scale production of GNs−PFA nanocomposites with high through-plane TCs, which can be used in various thermal-management applications.https://www.mdpi.com/2079-4991/9/9/1320thermal conductivitynanocompositegraphenealignmenthot-pressingperfluoroalkoxy |
| spellingShingle | Xinru Zhang Xiaoyu Xie Xinzhi Cai Zeyi Jiang Ting Gao Yujie Ren Jian Hu Xinxin Zhang Graphene−Perfluoroalkoxy Nanocomposite with High Through-Plane Thermal Conductivity Fabricated by Hot-Pressing Nanomaterials thermal conductivity nanocomposite graphene alignment hot-pressing perfluoroalkoxy |
| title | Graphene−Perfluoroalkoxy Nanocomposite with High Through-Plane Thermal Conductivity Fabricated by Hot-Pressing |
| title_full | Graphene−Perfluoroalkoxy Nanocomposite with High Through-Plane Thermal Conductivity Fabricated by Hot-Pressing |
| title_fullStr | Graphene−Perfluoroalkoxy Nanocomposite with High Through-Plane Thermal Conductivity Fabricated by Hot-Pressing |
| title_full_unstemmed | Graphene−Perfluoroalkoxy Nanocomposite with High Through-Plane Thermal Conductivity Fabricated by Hot-Pressing |
| title_short | Graphene−Perfluoroalkoxy Nanocomposite with High Through-Plane Thermal Conductivity Fabricated by Hot-Pressing |
| title_sort | graphene perfluoroalkoxy nanocomposite with high through plane thermal conductivity fabricated by hot pressing |
| topic | thermal conductivity nanocomposite graphene alignment hot-pressing perfluoroalkoxy |
| url | https://www.mdpi.com/2079-4991/9/9/1320 |
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