Mechanically Robust Flexible Multilayer Aramid Nanofibers and MXene Film for High-Performance Electromagnetic Interference Shielding and Thermal Insulation

In order to overcome the various defects caused by the limitations of solid metal as a shielding material, the development of electromagnetic shielding materials with flexibility and excellent mechanical properties is of great significance for the next generation of intelligent electronic devices. H...

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Autores principales:	Jun Zhou, Junsheng Yu, Dongyu Bai, Huili Liu, Lu Li
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	multilayer structure MXene ANF electromagnetic interference shielding thermal insulation Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/78a3cd2ba1f94fd1a5bb87d076e5b541
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spelling	oai:doaj.org-article:78a3cd2ba1f94fd1a5bb87d076e5b5412021-11-25T18:31:56ZMechanically Robust Flexible Multilayer Aramid Nanofibers and MXene Film for High-Performance Electromagnetic Interference Shielding and Thermal Insulation10.3390/nano111130412079-4991https://doaj.org/article/78a3cd2ba1f94fd1a5bb87d076e5b5412021-11-01T00:00:00Zhttps://www.mdpi.com/2079-4991/11/11/3041https://doaj.org/toc/2079-4991In order to overcome the various defects caused by the limitations of solid metal as a shielding material, the development of electromagnetic shielding materials with flexibility and excellent mechanical properties is of great significance for the next generation of intelligent electronic devices. Here, the aramid nanofiber/Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> MXene (ANF/MXene) composite films with multilayer structure were successfully prepared through a simple alternate vacuum-assisted filtration (AVAF) process. With the intervention of the ANF layer, the multilayer-structure film exhibits excellent mechanical properties. The ANF2/MXene1 composite film exhibits a tensile strength of 177.7 MPa and a breaking strain of 12.6%. In addition, the ANF5/MXene4 composite film with a thickness of only 30 μm exhibits an electromagnetic interference (EMI) shielding efficiency of 37.5 dB and a high EMI-specific shielding effectiveness value accounting for thickness (SSE/t) of 4718 dB·cm<sup>2</sup> g<sup>−1</sup>. Moreover, the composite film was excellent in heat-insulation performance and in avoiding light-to-heat conversion. No burning sensation was produced on the surface of the film with a thickness of only 100 μm at a high temperature of 130 °C. Furthermore, the surface of the film was only mild when touched under simulated sunlight. Therefore, our multilayer-structure film has potential significance in practical applications such as next-generation smart electronic equipment, communications, and military applications.Jun ZhouJunsheng YuDongyu BaiHuili LiuLu LiMDPI AGarticlemultilayer structureMXeneANFelectromagnetic interference shieldingthermal insulationChemistryQD1-999ENNanomaterials, Vol 11, Iss 3041, p 3041 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	multilayer structure MXene ANF electromagnetic interference shielding thermal insulation Chemistry QD1-999
spellingShingle	multilayer structure MXene ANF electromagnetic interference shielding thermal insulation Chemistry QD1-999 Jun Zhou Junsheng Yu Dongyu Bai Huili Liu Lu Li Mechanically Robust Flexible Multilayer Aramid Nanofibers and MXene Film for High-Performance Electromagnetic Interference Shielding and Thermal Insulation
description	In order to overcome the various defects caused by the limitations of solid metal as a shielding material, the development of electromagnetic shielding materials with flexibility and excellent mechanical properties is of great significance for the next generation of intelligent electronic devices. Here, the aramid nanofiber/Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> MXene (ANF/MXene) composite films with multilayer structure were successfully prepared through a simple alternate vacuum-assisted filtration (AVAF) process. With the intervention of the ANF layer, the multilayer-structure film exhibits excellent mechanical properties. The ANF2/MXene1 composite film exhibits a tensile strength of 177.7 MPa and a breaking strain of 12.6%. In addition, the ANF5/MXene4 composite film with a thickness of only 30 μm exhibits an electromagnetic interference (EMI) shielding efficiency of 37.5 dB and a high EMI-specific shielding effectiveness value accounting for thickness (SSE/t) of 4718 dB·cm<sup>2</sup> g<sup>−1</sup>. Moreover, the composite film was excellent in heat-insulation performance and in avoiding light-to-heat conversion. No burning sensation was produced on the surface of the film with a thickness of only 100 μm at a high temperature of 130 °C. Furthermore, the surface of the film was only mild when touched under simulated sunlight. Therefore, our multilayer-structure film has potential significance in practical applications such as next-generation smart electronic equipment, communications, and military applications.
format	article
author	Jun Zhou Junsheng Yu Dongyu Bai Huili Liu Lu Li
author_facet	Jun Zhou Junsheng Yu Dongyu Bai Huili Liu Lu Li
author_sort	Jun Zhou
title	Mechanically Robust Flexible Multilayer Aramid Nanofibers and MXene Film for High-Performance Electromagnetic Interference Shielding and Thermal Insulation
title_short	Mechanically Robust Flexible Multilayer Aramid Nanofibers and MXene Film for High-Performance Electromagnetic Interference Shielding and Thermal Insulation
title_full	Mechanically Robust Flexible Multilayer Aramid Nanofibers and MXene Film for High-Performance Electromagnetic Interference Shielding and Thermal Insulation
title_fullStr	Mechanically Robust Flexible Multilayer Aramid Nanofibers and MXene Film for High-Performance Electromagnetic Interference Shielding and Thermal Insulation
title_full_unstemmed	Mechanically Robust Flexible Multilayer Aramid Nanofibers and MXene Film for High-Performance Electromagnetic Interference Shielding and Thermal Insulation
title_sort	mechanically robust flexible multilayer aramid nanofibers and mxene film for high-performance electromagnetic interference shielding and thermal insulation
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/78a3cd2ba1f94fd1a5bb87d076e5b541
work_keys_str_mv	AT junzhou mechanicallyrobustflexiblemultilayeraramidnanofibersandmxenefilmforhighperformanceelectromagneticinterferenceshieldingandthermalinsulation AT junshengyu mechanicallyrobustflexiblemultilayeraramidnanofibersandmxenefilmforhighperformanceelectromagneticinterferenceshieldingandthermalinsulation AT dongyubai mechanicallyrobustflexiblemultilayeraramidnanofibersandmxenefilmforhighperformanceelectromagneticinterferenceshieldingandthermalinsulation AT huililiu mechanicallyrobustflexiblemultilayeraramidnanofibersandmxenefilmforhighperformanceelectromagneticinterferenceshieldingandthermalinsulation AT luli mechanicallyrobustflexiblemultilayeraramidnanofibersandmxenefilmforhighperformanceelectromagneticinterferenceshieldingandthermalinsulation
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Mechanically Robust Flexible Multilayer Aramid Nanofibers and MXene Film for High-Performance Electromagnetic Interference Shielding and Thermal Insulation

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