兰州大学机构库 >物理科学与技术学院
Synergy of core-shell Cu@rGO hybrids for significantly improved thermal and tribological properties of polyimide composites
He, Guorong1; Li, Y(李勇)1; Wu, Liangfei2,3; Wang, Yanling2,3; Liu, Meng2,3; Yuan, Junya2; Men, Xuehu1
2021-09
Source PublicationTRIBOLOGY INTERNATIONAL
ISSN0301-679X
Volume161
AbstractA 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 selfassembly 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 degrees 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.
KeywordReduced graphene oxide Cu nanoparticles Synergistic effect Friction and wear
PublisherELSEVIER SCI LTD
DOI10.1016/j.triboint.2021.107091
Indexed ByEI ; SCOPUS ; SCIE
Language英语
WOS Research AreaEngineering
WOS SubjectEngineering, Mechanical
WOS IDWOS:000663721100002
Original Document TypeArticle
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.lzu.edu.cn/handle/262010/452394
Collection物理科学与技术学院
Affiliation1.Lanzhou Univ, Sch Phys Sci & Technol, Key Lab Magnetism & Magnet Mat, Minist Educ, Lanzhou 730000, Peoples R China;
2.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China;
3.Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100049, Peoples R China
First Author AffilicationSchool of Physical Sicence and Technology
Recommended Citation
GB/T 7714
He, Guorong,Li, Yong,Wu, Liangfei,et al. Synergy of core-shell Cu@rGO hybrids for significantly improved thermal and tribological properties of polyimide composites[J]. TRIBOLOGY INTERNATIONAL,2021,161.
APA He, Guorong.,Li, Yong.,Wu, Liangfei.,Wang, Yanling.,Liu, Meng.,...&Men, Xuehu.(2021).Synergy of core-shell Cu@rGO hybrids for significantly improved thermal and tribological properties of polyimide composites.TRIBOLOGY INTERNATIONAL,161.
MLA He, Guorong,et al."Synergy of core-shell Cu@rGO hybrids for significantly improved thermal and tribological properties of polyimide composites".TRIBOLOGY INTERNATIONAL 161(2021).
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