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Thermally reduced g...
Thermally reduced graphene oxide/carbon nanotube composite films for thermal packaging applications
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- Yuan, G. (author)
- Shanghai University
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- Xie, Jie Fei (author)
- Shanghai University
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- Li, Haohao (author)
- Shanghai University
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- Shan, B. (author)
- Shanghai University
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- Zhang, Xiao Xin (author)
- Shanghai University
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- Liu, Johan, 1960 (author)
- Chalmers tekniska högskola,Chalmers University of Technology,Shanghai University
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- Li, Long (author)
- Shanghai University
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- Tian, Ying Zhong (author)
- Shanghai University
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(creator_code:org_t)
- 2020-01-10
- 2020
- English.
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In: Materials. - : MDPI AG. - 1996-1944. ; 13:2
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https://doi.org/10.3...
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Abstract
Subject headings
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- Thermally reduced graphene oxide/carbon nanotube (rGO/CNT) composite films were successfully prepared by a high-temperature annealing process. Their microstructure, thermal conductivity and mechanical properties were systematically studied at different annealing temperatures. As the annealing temperature increased, more oxygen-containing functional groups were removed from the composite film, and the percentage of graphene continuously increased. When the annealing temperature increased from 1100 to 1400 °C, the thermal conductivity of the composite film also continuously increased from 673.9 to 1052.1 W m-1 K-1. Additionally, the Young's modulus was reduced by 63.6%, and the tensile strength was increased by 81.7%. In addition, the introduction of carbon nanotubes provided through-plane thermal conduction pathways for the composite films, which was beneficial for the improvement of their through-plane thermal conductivity. Furthermore, CNTs apparently improved the mechanical properties of rGO/CNT composite films. Compared with the rGO film, 1 wt% CNTs reduced the Young's modulus by 93.3% and increased the tensile strength of the rGO/CNT composite film by 60.3%, which could greatly improve its flexibility. Therefore, the rGO/CNT composite films show great potential for application as thermal interface materials (TIMs) due to their high in-plane thermal conductivity and good mechanical properties.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Keramteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Ceramics (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Kemiteknik -- Polymerteknologi (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Chemical Engineering -- Polymer Technologies (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Kompositmaterial och -teknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Composite Science and Engineering (hsv//eng)
Keyword
- Composite film
- Carbon nanotubes
- Thermal interface materials
- Graphene
Publication and Content Type
- art (subject category)
- ref (subject category)
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