Volume 136, Issue 48 e202408458
Forschungsartikel

Simultaneously Strengthening and Toughening All-Natural Structural Materials via 3D Nanofiber Network Interfacial Design

Dr. Huai-Bin Yang

Dr. Huai-Bin Yang

Department of Chemistry, New Cornerstone Science Laboratory, 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

These authors contributed equally to this work.

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Xiang Zhao

Xiang Zhao

Department of Chemistry, New Cornerstone Science Laboratory, 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

These authors contributed equally to this work.

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Quan Wang

Quan Wang

CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Modern Mechanics, University of Science and Technology of China, Hefei, 230027 China

These authors contributed equally to this work.

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Yu-Hong Ruan

Yu-Hong Ruan

Department of Chemistry, New Cornerstone Science Laboratory, 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

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Zhao-Xiang Liu

Zhao-Xiang Liu

Department of Chemistry, New Cornerstone Science Laboratory, 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

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Xin Yue

Xin Yue

Department of Chemistry, New Cornerstone Science Laboratory, 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

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Dr. Yin Bo Zhu

Dr. Yin Bo Zhu

CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Modern Mechanics, University of Science and Technology of China, Hefei, 230027 China

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Prof. Heng An Wu

Prof. Heng An Wu

CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Modern Mechanics, University of Science and Technology of China, Hefei, 230027 China

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Dr. Qing-Fang Guan

Corresponding Author

Dr. Qing-Fang Guan

Department of Chemistry, New Cornerstone Science Laboratory, 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

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Prof. Shu-Hong Yu

Corresponding Author

Prof. Shu-Hong Yu

Department of Chemistry, New Cornerstone Science Laboratory, 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

Institute of Innovative Materials (I2 M), Department of Materials Science and Engineering, Department of Chemistry, Southern University of Science and Technology., Shenzhen, 518055 China

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First published: 13 June 2024

Abstract

Constructing structural materials from sustainable raw materials is considered an efficient way to reduce the potential threat posed by plastics. Nevertheless, challenges remain regarding combining excellent mechanical and thermal properties, especially the balance of strength and toughness. Here, we report a 3D nanofiber network interfacial design strategy to strengthen and toughen all-natural structural materials simultaneously. The introduced protonated chitosan at the interface between the surface oxidized 3D nanonetwork of bacterial cellulose forms the interfacial interlocking structure of nanonetworks, achieving a robust physical connection and providing enough physical contact sites for chemical crosslinking. The obtained sustainable structural material successfully integrates excellent mechanical and thermal properties on the nanoscale of cellulose nanofibers, such as light weight, high strength, and superior thermal expansion coefficient. The relationship between structural design and comprehensive mechanical property improvement is analyzed in detail, providing a universal perspective to design sustainable high-performance structural materials from nanoscale building blocks.

Conflict of Interests

The authors declare no conflict of interest.

Data Availability Statement

The data that support the findings of this study are available from the corresponding author upon reasonable request.

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