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Nano Research 2023, 16(7): 10164-10174 https://doi.org/10.1007/s12274-023-5523-3
Research Article | Issue | Published: 20 March 2023

Flexible and breathable 3D porous SSE/MXene foam towards impact/electromagnetic interference/bacteria multiple protection performance for intelligent wearable devices

Show Author's Information Min Sang1,  Shuai Liu1,  Jianpeng Wu1,  Xinyi Wang1,  Junshuo Zhang1,  Yunqi Xu1,  Yu Wang1,  Jun Li3,  Ji Li3,  Shouhu Xuan1,2( ),  Xinglong Gong1,2( )
CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Modern Mechanics, University of Science and Technology of China, Hefei 230027, China
State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei 230026, China
Anhui Weiwei Rubber Parts Group Co., Ltd., Tongcheng 231460, China
Keywords:
MXene, electromagnetic interference shielding, antibacterial property, three-dimensional (3D) porous foam, impact resistance, intelligent wearable device
Topics:
Nano device
Cite this article:
Sang M, Liu S, Wu J, et al. Flexible and breathable 3D porous SSE/MXene foam towards impact/electromagnetic interference/bacteria multiple protection performance for intelligent wearable devices. Nano Research, 2023, 16(7): 10164-10174. https://doi.org/10.1007/s12274-023-5523-3
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Abstract Full text Electronic supplementary material About this article

As intelligent wearable devices, they will inevitably be subjected to various damages and disturbances from the external environment during daily use. Therefore, it is urgent to develop safeguarding materials with multiple protective properties. Herein, this work developed a flexible and breathable three-dimensional (3D) porous shear stiffening elastomer (SSE)/MXene (M-SSE) foam with impact/electromagnetic interference (EMI)/bacteria multiple protection performance for intelligent wearable devices. The continuous conductive MXene network in the 3D SSE porous structure made M-SSE foam exhibit excellent electromagnetic interference shielding property with a high shielding effectiveness of 34 dB. Attributed to the shear stiffening effect of porous SSE matrix, M-SSE foam possessed unique anti-impact and protection properties. The energy dissipation rate reached up to more than 85%, illustrating M-SSE foam could effectively attenuate the external impact force and absorb the impact energy. Inherited from the excellent photothermal performance of MXene, M-SSE foam achieved a considerable saturated temperature of 98 °C under 0.57 W/cm2 laser power. Therefore, M-SSE foam showed extraordinary antimicrobial property for Staphylococcus aureus according to the principle of photothermal sterilization. Finally, for the development of intelligent wearable devices, conductive M-SSE foam could be used as an intelligent sensor to monitor various human movements owing to the highly sensitive property. This work greatly expanded the application prospect of multifunctional protective materials in various complex environments and promoted the development of multifunctional smart wearable devices in protection field.


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Electronic supplementary material
About this article

Flexible and breathable 3D porous SSE/MXene foam towards impact/electromagnetic interference/bacteria multiple protection performance for intelligent wearable devices

Show Author's information Min Sang1, Shuai Liu1, Jianpeng Wu1, Xinyi Wang1, Junshuo Zhang1, Yunqi Xu1, Yu Wang1, Jun Li3, Ji Li3, Shouhu Xuan1,2( ), Xinglong Gong1,2( )
CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Modern Mechanics, University of Science and Technology of China, Hefei 230027, China
State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei 230026, China
Anhui Weiwei Rubber Parts Group Co., Ltd., Tongcheng 231460, China

Abstract

As intelligent wearable devices, they will inevitably be subjected to various damages and disturbances from the external environment during daily use. Therefore, it is urgent to develop safeguarding materials with multiple protective properties. Herein, this work developed a flexible and breathable three-dimensional (3D) porous shear stiffening elastomer (SSE)/MXene (M-SSE) foam with impact/electromagnetic interference (EMI)/bacteria multiple protection performance for intelligent wearable devices. The continuous conductive MXene network in the 3D SSE porous structure made M-SSE foam exhibit excellent electromagnetic interference shielding property with a high shielding effectiveness of 34 dB. Attributed to the shear stiffening effect of porous SSE matrix, M-SSE foam possessed unique anti-impact and protection properties. The energy dissipation rate reached up to more than 85%, illustrating M-SSE foam could effectively attenuate the external impact force and absorb the impact energy. Inherited from the excellent photothermal performance of MXene, M-SSE foam achieved a considerable saturated temperature of 98 °C under 0.57 W/cm2 laser power. Therefore, M-SSE foam showed extraordinary antimicrobial property for Staphylococcus aureus according to the principle of photothermal sterilization. Finally, for the development of intelligent wearable devices, conductive M-SSE foam could be used as an intelligent sensor to monitor various human movements owing to the highly sensitive property. This work greatly expanded the application prospect of multifunctional protective materials in various complex environments and promoted the development of multifunctional smart wearable devices in protection field.

Keywords: MXene, electromagnetic interference shielding, antibacterial property, three-dimensional (3D) porous foam, impact resistance, intelligent wearable device

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Publication history
Copyright
Acknowledgements

Publication history

Received: 01 November 2022
Revised: 18 January 2023
Accepted: 20 January 2023
Published: 20 March 2023
Issue date: July 2023

Copyright

© Tsinghua University Press 2023

Acknowledgements

Acknowledgements

Financial supports from the National Natural Science Foundation of China (Nos. 12202435, 12132016, 11972032, and 12072338), the Fundamental Research Funds for the Central Universities (Nos. WK2480000007 and WK5290000003), and China Postdoctoral Science Foundation (No. 2021M703086) are gratefully acknowledged.

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