journal article·2023-02

Recyclable Nacre‐Like Aramid‐Mica Nanopapers with Enhanced Mechanical and Electrical Insulating Properties

Xiao‐Feng Pan, Zhiwei Bao, WenLong Xu, Huai‐Ling Gao, Bao Wu, YinBo Zhu, Guan‐Hua Yu, Jungen Chen, Si‐Chao Zhang, Liangbin Li, Heng‐An Wu, Xiaoguang Li, Shu‐Hong Yu

Advanced Functional Materials· Volume 33· Issue 9
Publisher page

Abstract

Abstract The emerging aramid‐mica nanopapers, composed of aramid nanofibers (ANFs) and mica nanosheets (Mica), exhibit superiority in the field of electrical insulation compared with commercial aramid‐mica micropapers. Unfortunately, their mechanical and electrical insulating properties are still less than ideal due to insufficient control of their microstructures. Herein, it is presented that by integrating ANFs and Mica into nacre‐like aramid‐mica nanopapers with improved structural orderliness, densification, and interlayer interaction, simultaneously improved mechanical and electrical insulating properties are achieved. Their maximum tensile strength and breakdown strength reach ≈292 MPa and ≈176 kV mm−1, respectively, which are superior to those of the state‐of‐the‐art ANFs‐based nanopapers. Particularly, the aramid‐mica nanopapers show high resistance to high‐temperature (250–300 °C) and oil‐bath (100 °C) environments commonly involved in practical applications, and can be recycled many times, demonstrating their great potential as high‐performance sustainable electrical insulating papers to be applied in advanced electrical equipment.
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Research context

OpenAlex topics: Dielectric materials and actuators · Advanced Sensor and Energy Harvesting Materials · Supercapacitor Materials and Fabrication

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Chemistry Institute of Biomimetic Materials & Chemistry Anhui Engineering Laboratory of Biomimetic Materials Division of Nanomaterials & Chemistry Hefei National Research Center for Physical Sciences at the Microscale University of Science and Technology of China Hefei 230026 China

Hefei National Research Center for Physical Sciences at the Microscale Department of Physics and CAS Key Laboratory of Strongly‐Coupled Quantum Matter Physics University of Science and Technology of China Hefei Anhui 230026 China

CAS Key Laboratory of Mechanical Behavior and Design of Materials Department of Modern Mechanics CAS Center for Excellence in Complex System Mechanics University of Science and Technology of China Hefei Anhui 230027 China

National Synchrotron Radiation Laboratory Anhui Provincial Engineering Laboratory of Advanced Functional Polymer Film CAS Key Laboratory of Soft Matter Chemistry University of Science and Technology of China Hefei Anhui 230027 China

Institute of Innovative Materials (I2M) Department of Materials Science and Engineering Department of Chemistry Southern University of Science and Technology Shenzhen 518055 China

Funding

National Basic Research Program of China · Fundamental Research Funds for the Central Universities · National Natural Science Foundation of China

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