中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Imidization-induced carbon nitride nanosheets orientation towards highly thermally conductive polyimide film with superior flexibility and electrical insulation

文献类型:期刊论文

作者Wang, Yanyan1,2,3; Zhang, Xian1,3; Ding, Xin1,3; Zhang, Ping1,2,3; Shu, Mengting1,2,3; Zhang, Qian1,2,3; Gong, Yi1,3; Zheng, Kang1,3; Tian, Xingyou1,3
刊名COMPOSITES PART B-ENGINEERING
出版日期2020-10-15
卷号199
ISSN号1359-8368
关键词Carbon nitride nanosheets Nanocomposite film Thermal conductivity Electrical insulation Mechanical flexibility
DOI10.1016/j.compositesb.2020.108267
通讯作者Zhang, Xian(xzhang@issp.ac.cn) ; Tian, Xingyou(xytian@issp.ac.cn)
英文摘要Owing to the unique layered structure, abundant functional groups and appropriate band gap, carbon nitride nanosheets (CNNS) has captured extensively attention in photocatalytic pollutants degradation and hydrogen evolution, while few study has been focused on improving the thermal conductivity. Considering its graphene-like network that is confined to 2D atomic thickness, CNNS would also show desirable thermal conductivity due to the highly aligned atoms decreasing phonon scattering. Here, CNNS is first used to improve the thermal conductivity of polyimide (PI) film. Based on the orientation of PI molecules during imidization and strong interaction with PI, CNNS realize in-plane self-orientation during solvent evaporation to form continuous thermal pathway in PI film. The thermal conductivity of PI/CNNS nanocomposite films reach 2.04 Wm(-1) K-1 with relatively low CNNS loading (20 wt%) which is about eleven times of the corresponding pure PI (0.18 Wm(-1 )K(-1)). Furthermore, the potential application of the PI/CNNS nanocomposite films for effective heat dissipation is explored by experiments and simulation. Meanwhile, the PI/CNNS nanocomposite films keep superior electrical insulation property and thermal stability. This work expands the application of CNNS and provides a facile, efficient approach to the design of high thermal conductive materials.
WOS关键词BORON-NITRIDE ; NANOFIBRILLATED CELLULOSE ; GRAPHENE OXIDE ; HYBRID FILMS ; COMPOSITES ; NANOCOMPOSITES ; POLYMER ; MANAGEMENT ; NANOTUBES ; STRATEGY
资助项目National Key Research and Development Program of China[2017YFB0406200] ; Key Project of Science and Technology Service Network Initiative of the Chinese Academy of Sciences[KFJ-STS-ZDTP-069] ; Anhui Provincial Natural Science Foundation[1808085QE160] ; Anhui Province Key Laboratory of Environmentfriendly Polymer Materials
WOS研究方向Engineering ; Materials Science
语种英语
出版者ELSEVIER SCI LTD
WOS记录号WOS:000571760800001
资助机构National Key Research and Development Program of China ; Key Project of Science and Technology Service Network Initiative of the Chinese Academy of Sciences ; Anhui Provincial Natural Science Foundation ; Anhui Province Key Laboratory of Environmentfriendly Polymer Materials
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/104287]  
专题中国科学院合肥物质科学研究院
通讯作者Zhang, Xian; Tian, Xingyou
作者单位1.Chinese Acad Sci, Inst Appl Technol, Hefei Inst Phys Sci, Hefei 230088, Peoples R China
2.Univ Sci & Technol China, Hefei 230026, Peoples R China
3.Chinese Acad Sci, Key Lab Photovolat & Energy Conservat Mat, Hefei 230088, Peoples R China
推荐引用方式
GB/T 7714
Wang, Yanyan,Zhang, Xian,Ding, Xin,et al. Imidization-induced carbon nitride nanosheets orientation towards highly thermally conductive polyimide film with superior flexibility and electrical insulation[J]. COMPOSITES PART B-ENGINEERING,2020,199.
APA Wang, Yanyan.,Zhang, Xian.,Ding, Xin.,Zhang, Ping.,Shu, Mengting.,...&Tian, Xingyou.(2020).Imidization-induced carbon nitride nanosheets orientation towards highly thermally conductive polyimide film with superior flexibility and electrical insulation.COMPOSITES PART B-ENGINEERING,199.
MLA Wang, Yanyan,et al."Imidization-induced carbon nitride nanosheets orientation towards highly thermally conductive polyimide film with superior flexibility and electrical insulation".COMPOSITES PART B-ENGINEERING 199(2020).

入库方式: OAI收割

来源:合肥物质科学研究院

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