Transforming ground mica into high-performance biomimetic polymeric mica film

Xiao-Feng Pan, Huai-Ling Gao, Yang Lu (), Chun-Yan Wu, Ya-Dong Wu, Xiang-Ying Wang, Zhi-Qiang Pan, Liang Dong, Yong-Hong Song, Huai-Ping Cong and Shu-Hong Yu ()
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Xiao-Feng Pan: Hefei University of Technology
Huai-Ling Gao: Division of Nanomaterials & Chemistry, Hefei National Research Center for Physical Sciences at the Microscale, CAS Center for Excellence in Nano science, Hefei Science Center of CAS, Collaborative Innovation Center of Suzhou Nano Science and Technology
Yang Lu: Hefei University of Technology
Chun-Yan Wu: Hefei University of Technology
Ya-Dong Wu: Hefei University of Technology
Xiang-Ying Wang: Hefei University of Technology
Zhi-Qiang Pan: Hefei University of Technology
Liang Dong: Division of Nanomaterials & Chemistry, Hefei National Research Center for Physical Sciences at the Microscale, CAS Center for Excellence in Nano science, Hefei Science Center of CAS, Collaborative Innovation Center of Suzhou Nano Science and Technology
Yong-Hong Song: Hefei University of Technology
Huai-Ping Cong: Hefei University of Technology
Shu-Hong Yu: Division of Nanomaterials & Chemistry, Hefei National Research Center for Physical Sciences at the Microscale, CAS Center for Excellence in Nano science, Hefei Science Center of CAS, Collaborative Innovation Center of Suzhou Nano Science and Technology

Nature Communications, 2018, vol. 9, issue 1, 1-8

Abstract: Abstract Biomimetic assembly of high-quality nanosheets into nacre-like structures can produce macroscopic films with favorable mechanical and optical performances due to the intrinsic properties and high level of ordering of the nanoscale building blocks. Natural ground mica is abundant and exhibits great application potential. However, large size and low aspect ratio greatly limit its biomimetic assembly. Moreover, exfoliation of ground mica into high-quality nanosheets remains a significant challenge. Here, we report that large-scale exfoliation of ground mica into mono- or few-layered mica nanosheets with a production rate of ~1.0 g h−1 can be successfully achieved. The mica nanosheets are then assembled into strong biomimetic polymeric mica film that inherits the high electric insulation, excellent visible transmittance, and unique ultraviolet-shielding properties of natural mica. Its overall performance is superior to that of natural sheet mica and other biomimetic films, making the polymeric mica film a suitable substrate for flexible and transparent devices.

Date: 2018
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DOI: 10.1038/s41467-018-05355-6

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