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Jiang X, Zhou J, Zhong X, Hu Z, Hu R, Song Y, Zheng Q. Stretchable PEDOT:PSS/Li-TFSI/XSB Composite Films for Electromagnetic Interference Shielding. ACS APPLIED MATERIALS & INTERFACES 2023; 15:8521-8529. [PMID: 36746749 DOI: 10.1021/acsami.2c21604] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Electromagnetic interference (EMI) shielding materials with stretchability are important for developing wearable and flexible appliances. Herein, lithium bis(trifloromethanesulfonyl)imide (Li-TFSI)-doped poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) and carboxylated styrene-butadiene rubber (XSB) latex are used to prepare stretchable EMI shielding composite films of 0.2 mm in thickness. In these films, the doped PEDOT:PSS nanoparticles form tenuous conductive pathways between the hexagonally packed latex particles, resulting in higher EMI shielding efficiency (EMI SE) compared with the films containing traditional dopant ethylene glycol. For the purpose of stretchable EMI shielding, the films containing 6 wt % PEDOT:PSS and 6 wt % Li-TFSI demonstrate EMI SE of 50 and 30 dB (12.4 GHz) at 0 and 100% strains, respectively, being the highest values among the reported shielding composites except for those using liquid metal as the filler. The investigation also provides a simple and environmentally friendly preparation method being highlighted for the development of lightweight stretchable EMI shielding materials for applications in flexible electronics in the near future.
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Affiliation(s)
- Xin Jiang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou310058, China
| | - Junwei Zhou
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou310058, China
| | - Xinke Zhong
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou310058, China
| | - Zhaopeng Hu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou310058, China
| | - Rongyan Hu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou310058, China
| | - Yihu Song
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou310058, China
- Shanxi-Zheda Institute of New Materials and Chemical Engineering, Taiyuan030000, China
| | - Qiang Zheng
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou310058, China
- Shanxi-Zheda Institute of New Materials and Chemical Engineering, Taiyuan030000, China
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Dong YZ, Kim HM, Choi HJ. Conducting polymer-based electro-responsive smart suspensions. CHEMICAL PAPERS 2021. [DOI: 10.1007/s11696-021-01550-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Recent development in hybrid conducting polymers: Synthesis, applications and future prospects. J IND ENG CHEM 2018. [DOI: 10.1016/j.jiec.2017.09.038] [Citation(s) in RCA: 93] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Saini P, Arora M, Gupta G, Gupta BK, Singh VN, Choudhary V. High permittivity polyaniline-barium titanate nanocomposites with excellent electromagnetic interference shielding response. NANOSCALE 2013; 5:4330-6. [PMID: 23563991 DOI: 10.1039/c3nr00634d] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Organic conductive polymers are at the forefront of materials science research because of their diverse applications built around their interesting and unique properties. This work reports for the first time a correlation between the structural, electrical, and electromagnetic properties of polyaniline (PANI)-tetragonal BaTiO3 (TBT) nanocomposites prepared by in-situ emulsion polymerization. XRD studies and HRTEM micrographs of these nanocomposites clearly revealed the incorporation of TBT nanoparticles in the conducting PANI matrix. EPR and XPS measurements reveal that increase in loading level of BaTiO3 results in a reduction of the doping level of PANI. The Ku-Band (12.4-18 GHz) network analysis of these composites shows exceptional microwave shielding response with absorption dominated total shielding effectiveness (SET) value of -71.5 dB (blockage of more than 99.99999% of incident radiation) which is the highest value reported in the literature. Such a high attenuation level, which critically depends on the fraction of BaTiO3 is attributed to optimized dielectric and electrical attributes. This demonstrates the possibility of using these materials in stealth technology and for making futuristic radar absorbing materials (RAMs).
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Affiliation(s)
- Parveen Saini
- CSIR-National Physical Laboratory, Dr K. S. Krishnan Road, New Delhi-110012, India.
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Ko YG, Choi US, Chun YJ. Influence of particle size on shear behavior of amine-group-immobilized polyacrylonitrile dispersed suspension under electric field. J Colloid Interface Sci 2009; 335:183-8. [DOI: 10.1016/j.jcis.2009.03.032] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2009] [Revised: 02/18/2009] [Accepted: 03/07/2009] [Indexed: 10/21/2022]
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Ko YG, Choi US, Chun YJ. Trembling Shear Behavior of a Modified-Chitosan Dispersed Suspension under an Electric Field and its Model Study. MACROMOL CHEM PHYS 2008. [DOI: 10.1002/macp.200700599] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Yavuz M, (Uygun) Gok A, Sen S, Unal HI. Electrorheological Properties of Polyaniline/Red Mud Composite. INTERNATIONAL JOURNAL OF POLYMER ANALYSIS AND CHARACTERIZATION 2008. [DOI: 10.1080/10236660701636579] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Yan H, Liao ZJ, Zhu X, Wang XM, Chen Y, Zhang B, Chen SL, Za ZY. Synthesis and electrorheological properties of polyaniline-coated barium titanate composite particles. J Appl Polym Sci 2007. [DOI: 10.1002/app.27315] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Fei Fang F, Hye Kim J, Jin Choi H, Seo Y. Organic/inorganic hybrid of polyaniline/BaTiO3 composites and their electrorheological and dielectric characteristics. J Appl Polym Sci 2007. [DOI: 10.1002/app.26359] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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