Simultaneously Improved Thermal Conductivity and Dielectric Properties of NBR Composites by Constructing 3D Hybrid Filler Networks
Abstract This work aims to address the heat accumulation issue in electronic components during high‐frequency operation through the preparation of novel thermally conductive composites. First, polydopamine (PDA) and in‐situ growth of silver (Ag) nanoparticles are applied for the surface modification...
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| Format: | Article |
| Language: | English |
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Wiley-VCH
2023-09-01
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| Series: | Macromolecular Materials and Engineering |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/mame.202300016 |
| _version_ | 1797685039401533440 |
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| author | Xing Xie Dan Yang |
| author_facet | Xing Xie Dan Yang |
| author_sort | Xing Xie |
| collection | DOAJ |
| description | Abstract This work aims to address the heat accumulation issue in electronic components during high‐frequency operation through the preparation of novel thermally conductive composites. First, polydopamine (PDA) and in‐situ growth of silver (Ag) nanoparticles are applied for the surface modification of graphene oxide (GO) and carbon nanotube (CNT) to prepare pGO@Ag and pCNT@Ag hybrid filler, respectively. Then, nitrile butadiene rubber (NBR) is chosen as the polymeric matrix and simultaneously incorporated with both pGO@Ag and pCNT@Ag to prepare polymeric composites with excellent thermal conductivity (TC) and dielectric constant (ɛr). Due to the construction of 3D heat conduction networks by utilizing 2D pGO@Ag and 1D pCNT@Ag, the fabricated NBR composites achieved the maximum TC of 1.0112 W/(mK), which is 636% higher than that of neat NBR (0.1373 W (mK)−1). At the filler loading of 9 vol%, the TC of pGO@Ag/pCNT@Ag/NBR composite is 152% that of GO/CNT/NBR composite (0.6660 W (mK)−1). Moreover, due to electron polarization effect of GO and CNT and micro‐capacitor effect of Ag nanoparticles, a large ɛr of 147.12 is attained at 10 Hz for NBR composites. Overall, the development of dielectric polymer materials with high TC is beneficial for enhancing the service life and safety stability of the electronic components. |
| first_indexed | 2024-03-12T00:39:31Z |
| format | Article |
| id | doaj.art-c4114396c1a845ca947c814c6090bc7d |
| institution | Directory Open Access Journal |
| issn | 1438-7492 1439-2054 |
| language | English |
| last_indexed | 2024-03-12T00:39:31Z |
| publishDate | 2023-09-01 |
| publisher | Wiley-VCH |
| record_format | Article |
| series | Macromolecular Materials and Engineering |
| spelling | doaj.art-c4114396c1a845ca947c814c6090bc7d2023-09-15T09:14:11ZengWiley-VCHMacromolecular Materials and Engineering1438-74921439-20542023-09-013089n/an/a10.1002/mame.202300016Simultaneously Improved Thermal Conductivity and Dielectric Properties of NBR Composites by Constructing 3D Hybrid Filler NetworksXing Xie0Dan Yang1College of Materials Science and Engineering Beijing University of Chemical Technology Beijing 100029 P. R. ChinaCollege of Materials Science and Engineering Beijing University of Chemical Technology Beijing 100029 P. R. ChinaAbstract This work aims to address the heat accumulation issue in electronic components during high‐frequency operation through the preparation of novel thermally conductive composites. First, polydopamine (PDA) and in‐situ growth of silver (Ag) nanoparticles are applied for the surface modification of graphene oxide (GO) and carbon nanotube (CNT) to prepare pGO@Ag and pCNT@Ag hybrid filler, respectively. Then, nitrile butadiene rubber (NBR) is chosen as the polymeric matrix and simultaneously incorporated with both pGO@Ag and pCNT@Ag to prepare polymeric composites with excellent thermal conductivity (TC) and dielectric constant (ɛr). Due to the construction of 3D heat conduction networks by utilizing 2D pGO@Ag and 1D pCNT@Ag, the fabricated NBR composites achieved the maximum TC of 1.0112 W/(mK), which is 636% higher than that of neat NBR (0.1373 W (mK)−1). At the filler loading of 9 vol%, the TC of pGO@Ag/pCNT@Ag/NBR composite is 152% that of GO/CNT/NBR composite (0.6660 W (mK)−1). Moreover, due to electron polarization effect of GO and CNT and micro‐capacitor effect of Ag nanoparticles, a large ɛr of 147.12 is attained at 10 Hz for NBR composites. Overall, the development of dielectric polymer materials with high TC is beneficial for enhancing the service life and safety stability of the electronic components.https://doi.org/10.1002/mame.2023000163D networksdielectric propertiespolymeric compositesthermal conductivity |
| spellingShingle | Xing Xie Dan Yang Simultaneously Improved Thermal Conductivity and Dielectric Properties of NBR Composites by Constructing 3D Hybrid Filler Networks Macromolecular Materials and Engineering 3D networks dielectric properties polymeric composites thermal conductivity |
| title | Simultaneously Improved Thermal Conductivity and Dielectric Properties of NBR Composites by Constructing 3D Hybrid Filler Networks |
| title_full | Simultaneously Improved Thermal Conductivity and Dielectric Properties of NBR Composites by Constructing 3D Hybrid Filler Networks |
| title_fullStr | Simultaneously Improved Thermal Conductivity and Dielectric Properties of NBR Composites by Constructing 3D Hybrid Filler Networks |
| title_full_unstemmed | Simultaneously Improved Thermal Conductivity and Dielectric Properties of NBR Composites by Constructing 3D Hybrid Filler Networks |
| title_short | Simultaneously Improved Thermal Conductivity and Dielectric Properties of NBR Composites by Constructing 3D Hybrid Filler Networks |
| title_sort | simultaneously improved thermal conductivity and dielectric properties of nbr composites by constructing 3d hybrid filler networks |
| topic | 3D networks dielectric properties polymeric composites thermal conductivity |
| url | https://doi.org/10.1002/mame.202300016 |
| work_keys_str_mv | AT xingxie simultaneouslyimprovedthermalconductivityanddielectricpropertiesofnbrcompositesbyconstructing3dhybridfillernetworks AT danyang simultaneouslyimprovedthermalconductivityanddielectricpropertiesofnbrcompositesbyconstructing3dhybridfillernetworks |