Synergy of core-shell Cu@rGO hybrids for significantly improved thermal and tribological properties of polyimide composites | |
Department | 中国科学院材料磨损与防护重点实验室/先进润滑与防护材料研究发展中心 |
Guorong He1; Yong Li1; Liangfei Wu2; Yanling Wang2; Meng Liu2; Junya Yuan2; Xuehu Men1 | |
The second department | 复合润滑材料课题组 |
2021 | |
Source Publication | Tribology international |
Issue | 161Pages:107091 |
Abstract | A facile electrostatic self-assembly way was developed to prepare Cu nanoparticles @ rGO (reduced graphene oxide) nanosheets to enhance the properties of PI (polyimide) composites. Through the electrostatic self-assembly between Cu and rGO, interface compatibility of Cu and PI matrix was improved. Meanwhile, the zero-dimensional Cu and two-dimensional rGO in core-shell Cu@rGO hybrids could integrate the multiple advantages and provide synergistic enhancement for PI composites. As a result, the maximum thermal decomposition temperature of PI/Cu@rGO composites recorded an increase of 12 °C in comparision with that of pure PI. In addition, the Cu@rGO hybrids demonstrated the optimal lubrication properties for PI matrix compared to individual Cu, rGO and Cu/rGO blend. For PI/Cu@rGO-0.5 wt% composites, the specific wear rate and average friction coefficient were decreased by 44.1% and 11.6%. The outstanding tribological performance of PI/Cu@rGO composites can be ascribed to the synergistic enhancement between Cu nanoparticles and rGO nanosheets as well as the formation of high-quality transfer film. Furthermore, the inherent abrasion mechanism of PI/Cu@rGO composites was explored systematically. |
Indexed By | SCI |
If | 4.872 |
compositor | 第二作者单位 |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/27667 |
Collection | 固体润滑国家重点实验室(LSL) 精细石油化工中间体国家工程研究中心(ERC) |
Corresponding Author | Junya Yuan; Xuehu Men |
Affiliation | 1.兰州大学 2.中科院兰州化学物理研究所 |
Recommended Citation GB/T 7714 | Guorong He,Yong Li,Liangfei Wu,et al. Synergy of core-shell Cu@rGO hybrids for significantly improved thermal and tribological properties of polyimide composites[J]. Tribology international,2021(161):107091. |
APA | Guorong He.,Yong Li.,Liangfei Wu.,Yanling Wang.,Meng Liu.,...&Xuehu Men.(2021).Synergy of core-shell Cu@rGO hybrids for significantly improved thermal and tribological properties of polyimide composites.Tribology international(161),107091. |
MLA | Guorong He,et al."Synergy of core-shell Cu@rGO hybrids for significantly improved thermal and tribological properties of polyimide composites".Tribology international .161(2021):107091. |
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