Flexible layered reduced graphene oxide/aramid nanofiber composite membrane with high thermal conductivity and mechanical properties
| Autor: | Dandan Dong, Xinwang Gu, Shengjun Lu, Haosen Fan |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2023 |
| Předmět: | |
| Zdroj: | Materials Research Express, Vol 10, Iss 7, p 076401 (2023) |
| Druh dokumentu: | article |
| ISSN: | 2053-1591 42729483 |
| DOI: | 10.1088/2053-1591/ace0fb |
| Popis: | Aramid nanofiber films have shown great potential for high-performance batteries and flexible electronics due to their lightweight and excellent formability. However, aramid nanofibers’ inherent low thermal conductivity severely limits their further applications in high-power electronic devices. Therefore, we attempted to prepare ANF-based composites with excellent thermal conductivity by using reduced graphene oxide (rGO) as a thermally conductive filler for ANF. In this work, we prepared rGO/ANF composite films with horizontal laminar structures by chemical reduction, vacuum-assisted filtration, and hot-press drying. Compared with the pure ANF film ( λ , 0.52 W mK ^−1 ), the thermal conductivity of the rGO/ANF composite film was greatly improved, and the thermal conductivity increased with increasing rGO content. 50 wt% rGO/ANF composite film achieved an in-plane thermal conductivity of 7.45 W mK ^−1 , 1182.7% higher than the ANF film, and the tensile strength reached 81.7 MPa. Overall, our prepared rGO/ANF composite film exhibits excellent thermal conductivity and good mechanical strength, which helps to explore the potential and development of aramid nanofibres applications in electronic devices. |
| Databáze: | Directory of Open Access Journals |
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