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 |
DOI | 10.1016/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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