journal article·2022-01-03

Sustainable Multiscale High-Haze Transparent Cellulose Fiber Film via a Biomimetic Approach

Qing-Fang Guan, Kun-Peng Yang, Zi-Meng Han, Huai-Bin Yang, Zhang-Chi Ling, Chong-Han Yin, Shu-Hong Yu

ACS Materials Letters· Volume 4· Issue 1
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Abstract

Chinese traditional Xuan paper is distinguished for its high strength, high toughness, and high flexibility. Microscopically, this remarkable mechanical property is derived from its uniform nano- and microscale structure. Here, inspired by the multiscale structure design of biomaterials and Xuan paper, we report an ultrastrong and ultraflexible transparent cellulose fiber film with an ultrafine nano- and microscale structure. Through introducing micron-sized cellulose fibers into the cellulose nanofiber network, the multiscale film combines high strength (258 MPa) and toughness (7.90 MJ m–3) and low thermal expansion coefficients as well as high light transmittance (82.7%) and high haze (97.4%) simultaneously in one material. Moreover, the multiscale design endows the film to be restored to intactness after being fully folded and rolled, making it a high-performance and eco-friendly alternative film material for practical application in flexible electronic devices.
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Research context

OpenAlex topics: Advanced Cellulose Research Studies · Electrospun Nanofibers in Biomedical Applications · Surface Modification and Superhydrophobicity

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

Affiliations

Division of Nanomaterials and Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, Institute of Energy, Hefei Comprehensive National Science Center, CAS Center for Excellence in Nanoscience, Department of Chemistry, Institute of Biomimetic Materials & Chemistry, Anhui Engineering Laboratory of Biomimetic Materials, University of Science and Technology of China, Hefei 230026, China

Funding

National Natural Science Foundation of China · Chinese Academy of Sciences · Key Research Program of Frontier Sciences, Chinese Academy of Sciences · Fundamental Research Funds for the Central Universities · Foundation for Innovative Research Groups of the National Natural Science Foundation of China

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