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Nano Research 2023, 16(7): 10587-10596 https://doi.org/10.1007/s12274-023-5544-y
Flagship Article | Issue | Published: 28 February 2023

The biomimetic design provides efficient self-healing of ultrahigh-tough and damage-warning bio-based elastomer for protective clothing of metals

Show Author's Information Hao Wu1,2,  Zilong Zhu3,  Ningjie Gao1,2,  Lin Ma1,2,  Jiwen Li1,2,  Fuchun Liu1,2,3( )
Key Laboratory of Nuclear Materials and Safety Assessment, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
School of Materials Science and Engineering, University of Science and Technology of China, Shenyang 110016, China
Institute of Corrosion Science and Technology, Guangzhou 510530, China
Keywords:
multiple dynamic bonds, biomimetic polymer, ultrahigh performance, self-repairing, self-warning
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Wu H, Zhu Z, Gao N, et al. The biomimetic design provides efficient self-healing of ultrahigh-tough and damage-warning bio-based elastomer for protective clothing of metals. Nano Research, 2023, 16(7): 10587-10596. https://doi.org/10.1007/s12274-023-5544-y
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Abstract Full text Electronic supplementary material About this article

Facing the ubiquitous corrosion threat, the great significance of developing high-performance protective materials with the dual function of self-healing defects and self-warning damage is extremely challenging. Herein, inspired by the biological skin and pearls, we proposed that the biological polyurethanes (PU) embedded with multiple dynamic bonds (reversible hydrogen bonds and aromatic disulfide bonds) were combined with polydopamine (PDA)/1,10-phenanthroline (Phen)/graphene oxide (GO) (PPG) nanosheets (PDA encapsulated GO with Phen) to obtain a versatile nacre structure polymer with the interface hydrogen bond between PPG and PU matrix. The biomimetic polymer not only guarantees ultrahigh toughness (116.1 MJ·m−3) and abnormal elongation (2320%) but shows satisfactory repair performance (81% under 25 °C for 3 h), and the coating can accelerate damage recovery (87%) under near-infrared light (NIR) irradiation for 1 h due to the photothermal properties of PPG. The warning of damages in the coating can be enabled through the Phen chelation Fe2+ ions that bring in the corrosion reaction to produce a conspicuous red color, thereby achieving the active warning function of the bionic coating on defects for the first time. In addition, the electrochemical tests exhibit that the repair performance and protection effect of the biomimetic coating in 3.5 wt.% NaCl solution are also trustworthy, and this highly reliable bio-based bionic coating brings a revolutionary program to inaugurate multifunctional and high-performance intelligent materials under harsh environments.


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Electronic supplementary material
About this article

The biomimetic design provides efficient self-healing of ultrahigh-tough and damage-warning bio-based elastomer for protective clothing of metals

Show Author's information Hao Wu1,2, Zilong Zhu3, Ningjie Gao1,2, Lin Ma1,2, Jiwen Li1,2, Fuchun Liu1,2,3( )
Key Laboratory of Nuclear Materials and Safety Assessment, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
School of Materials Science and Engineering, University of Science and Technology of China, Shenyang 110016, China
Institute of Corrosion Science and Technology, Guangzhou 510530, China

Abstract

Facing the ubiquitous corrosion threat, the great significance of developing high-performance protective materials with the dual function of self-healing defects and self-warning damage is extremely challenging. Herein, inspired by the biological skin and pearls, we proposed that the biological polyurethanes (PU) embedded with multiple dynamic bonds (reversible hydrogen bonds and aromatic disulfide bonds) were combined with polydopamine (PDA)/1,10-phenanthroline (Phen)/graphene oxide (GO) (PPG) nanosheets (PDA encapsulated GO with Phen) to obtain a versatile nacre structure polymer with the interface hydrogen bond between PPG and PU matrix. The biomimetic polymer not only guarantees ultrahigh toughness (116.1 MJ·m−3) and abnormal elongation (2320%) but shows satisfactory repair performance (81% under 25 °C for 3 h), and the coating can accelerate damage recovery (87%) under near-infrared light (NIR) irradiation for 1 h due to the photothermal properties of PPG. The warning of damages in the coating can be enabled through the Phen chelation Fe2+ ions that bring in the corrosion reaction to produce a conspicuous red color, thereby achieving the active warning function of the bionic coating on defects for the first time. In addition, the electrochemical tests exhibit that the repair performance and protection effect of the biomimetic coating in 3.5 wt.% NaCl solution are also trustworthy, and this highly reliable bio-based bionic coating brings a revolutionary program to inaugurate multifunctional and high-performance intelligent materials under harsh environments.

Keywords: multiple dynamic bonds, biomimetic polymer, ultrahigh performance, self-repairing, self-warning

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Acknowledgements

Publication history

Received: 10 December 2022
Revised: 17 January 2023
Accepted: 02 February 2023
Published: 28 February 2023
Issue date: July 2023

Copyright

© Tsinghua University Press 2023

Acknowledgements

Acknowledgements

This study was financially supported by the LingChuang Research Project of China National Nuclear Corporation (No. E041F212Z1).

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