Ti3C2Tx/PANI/Liquid Metal Composite Microspheres with 3D Nanoflower Structure: Preparation, Characterization, and Applications in EMI Shielding

Abstract Conductive fabrics are promising candidates for developing flexible, lightweight, and high conductivity electromagnetic (EM) shielding materials to meet the requirements of next‐generation flexible and wearable electronics. Herein, an effective strategy to construct a conductive titanium ca...

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Main Authors: Jing Li, Yingxue Li, Liying Yang, Shougen Yin
Format: Article
Language:English
Published: Wiley-VCH 2022-04-01
Series:Advanced Materials Interfaces
Subjects:
Online Access:https://doi.org/10.1002/admi.202102266
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author Jing Li
Yingxue Li
Liying Yang
Shougen Yin
author_facet Jing Li
Yingxue Li
Liying Yang
Shougen Yin
author_sort Jing Li
collection DOAJ
description Abstract Conductive fabrics are promising candidates for developing flexible, lightweight, and high conductivity electromagnetic (EM) shielding materials to meet the requirements of next‐generation flexible and wearable electronics. Herein, an effective strategy to construct a conductive titanium carbide (Ti3C2Tx)/Polyaniline (PANI) composite with 3D nanoflower structure by deposition of PANI on the surface of single‐layer Ti3C2Tx nanosheets through in situ and oxidant‐free polymerization of aniline monomer to avoid the restacking/aggregation and easy oxidation of Ti3C2Tx MXene is developed. In addition, GaIn liquid metal (LM) nanoparticles are also incorporated into the Ti3C2Tx/PANI microsphere to increase conductivity and stability. This method solves the existing problems of poor connectivity between LM nanoparticles and discontinuity of the Ti3C2Tx MXene nanosheets. Eventually, by using carbon fabrics (CF) as the substrate, a flexible, stable, and efficient electromagnetic interference (EMI) shielding conductive composite fabric with an optimal EMI shielding efficiency (EMI SE) value of 52.0 dB in the range of 8.2–12.4 GHz at a thickness of 0.27 mm is developed. Meanwhile, the as‐prepared fabrics demonstrate superior Joule heating property, high mechanical flexibility, and excellent bending‐release stability. The study provides a simple and efficient method to fabricate multifunctional conductive textiles to meet the need for practical application in EMI shielding area.
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spelling doaj.art-11606e2d73a1488cb58b06a0233b60692023-09-08T03:32:46ZengWiley-VCHAdvanced Materials Interfaces2196-73502022-04-01910n/an/a10.1002/admi.202102266Ti3C2Tx/PANI/Liquid Metal Composite Microspheres with 3D Nanoflower Structure: Preparation, Characterization, and Applications in EMI ShieldingJing Li0Yingxue Li1Liying Yang2Shougen Yin3Key Laboratory of Display Materials and Photoelectric Devices (Ministry of Education) and Tianjin Key Laboratory for Photoelectric Materials and Devices School of Materials Science and Engineering Tianjin University of Technology Tianjin 300384 ChinaKey Laboratory of Display Materials and Photoelectric Devices (Ministry of Education) and Tianjin Key Laboratory for Photoelectric Materials and Devices School of Materials Science and Engineering Tianjin University of Technology Tianjin 300384 ChinaKey Laboratory of Display Materials and Photoelectric Devices (Ministry of Education) and Tianjin Key Laboratory for Photoelectric Materials and Devices School of Materials Science and Engineering Tianjin University of Technology Tianjin 300384 ChinaKey Laboratory of Display Materials and Photoelectric Devices (Ministry of Education) and Tianjin Key Laboratory for Photoelectric Materials and Devices School of Materials Science and Engineering Tianjin University of Technology Tianjin 300384 ChinaAbstract Conductive fabrics are promising candidates for developing flexible, lightweight, and high conductivity electromagnetic (EM) shielding materials to meet the requirements of next‐generation flexible and wearable electronics. Herein, an effective strategy to construct a conductive titanium carbide (Ti3C2Tx)/Polyaniline (PANI) composite with 3D nanoflower structure by deposition of PANI on the surface of single‐layer Ti3C2Tx nanosheets through in situ and oxidant‐free polymerization of aniline monomer to avoid the restacking/aggregation and easy oxidation of Ti3C2Tx MXene is developed. In addition, GaIn liquid metal (LM) nanoparticles are also incorporated into the Ti3C2Tx/PANI microsphere to increase conductivity and stability. This method solves the existing problems of poor connectivity between LM nanoparticles and discontinuity of the Ti3C2Tx MXene nanosheets. Eventually, by using carbon fabrics (CF) as the substrate, a flexible, stable, and efficient electromagnetic interference (EMI) shielding conductive composite fabric with an optimal EMI shielding efficiency (EMI SE) value of 52.0 dB in the range of 8.2–12.4 GHz at a thickness of 0.27 mm is developed. Meanwhile, the as‐prepared fabrics demonstrate superior Joule heating property, high mechanical flexibility, and excellent bending‐release stability. The study provides a simple and efficient method to fabricate multifunctional conductive textiles to meet the need for practical application in EMI shielding area.https://doi.org/10.1002/admi.202102266anilineconductive fabricelectromagnetic interference shieldingliquid metalMXene
spellingShingle Jing Li
Yingxue Li
Liying Yang
Shougen Yin
Ti3C2Tx/PANI/Liquid Metal Composite Microspheres with 3D Nanoflower Structure: Preparation, Characterization, and Applications in EMI Shielding
Advanced Materials Interfaces
aniline
conductive fabric
electromagnetic interference shielding
liquid metal
MXene
title Ti3C2Tx/PANI/Liquid Metal Composite Microspheres with 3D Nanoflower Structure: Preparation, Characterization, and Applications in EMI Shielding
title_full Ti3C2Tx/PANI/Liquid Metal Composite Microspheres with 3D Nanoflower Structure: Preparation, Characterization, and Applications in EMI Shielding
title_fullStr Ti3C2Tx/PANI/Liquid Metal Composite Microspheres with 3D Nanoflower Structure: Preparation, Characterization, and Applications in EMI Shielding
title_full_unstemmed Ti3C2Tx/PANI/Liquid Metal Composite Microspheres with 3D Nanoflower Structure: Preparation, Characterization, and Applications in EMI Shielding
title_short Ti3C2Tx/PANI/Liquid Metal Composite Microspheres with 3D Nanoflower Structure: Preparation, Characterization, and Applications in EMI Shielding
title_sort ti3c2tx pani liquid metal composite microspheres with 3d nanoflower structure preparation characterization and applications in emi shielding
topic aniline
conductive fabric
electromagnetic interference shielding
liquid metal
MXene
url https://doi.org/10.1002/admi.202102266
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