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Meng L, Ma Y, Zou Y, Zhang B, Chen G, Dong C, Wang L, Guan H. Lightweight, breathable and self-cleaning polypyrrole-modified multifunctional cotton fabric for flexible electromagnetic interference shielding. Int J Biol Macromol 2024; 274:133347. [PMID: 38917920 DOI: 10.1016/j.ijbiomac.2024.133347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Revised: 06/07/2024] [Accepted: 06/19/2024] [Indexed: 06/27/2024]
Abstract
The thriving of wearable electronics and the emerging new requirements for electromagnetic interference (EMI) shielding have driven the innovation of EMI shielding materials towards lightweight, wearability and multifunctionality. Herein, the hierarchical polypyrrole nanotubes (PNTs)/PDMS structures are rationally constructed on the textile for obtaining multifunctional and flexible EMI shielding textiles by in-situ polymerization and surface coating. The modified cotton fabric possesses a conductivity of about 2715.8 S/m and an SET of 28.2 dB in the X band when the thickness is only 0.5 mm. After ultrasonic treatment, cyclic bending and washing, the conductivity and EMI shielding performance remain stable and exhibit long-term durability. Importantly, the textile's inherent lightweight, breathable and soft properties have been completely retained after modification. This work shows application potentiality in the field of EMI pollution protection and affords a novel path for the construction of multifunctionally wearable and durable EMI shielding materials.
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Affiliation(s)
- Lingsai Meng
- School of Materials and Energy, Yunnan University, Kunming 950091, PR China
| | - Yu Ma
- School of Materials and Energy, Yunnan University, Kunming 950091, PR China
| | - Yupeng Zou
- School of Materials and Energy, Yunnan University, Kunming 950091, PR China
| | - Bozhao Zhang
- School of Materials and Energy, Yunnan University, Kunming 950091, PR China
| | - Gang Chen
- School of Materials and Energy, Yunnan University, Kunming 950091, PR China
| | - Chengjun Dong
- School of Materials and Energy, Yunnan University, Kunming 950091, PR China
| | - Lihong Wang
- School of Materials and Energy, Yunnan University, Kunming 950091, PR China
| | - Hongtao Guan
- School of Materials and Energy, Yunnan University, Kunming 950091, PR China.
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Wu B, Liu R, Yang Y, Zhu H, Yu Y, Huang J, Li Y. Asymmetrically structured polyvinylidene fluoride composite for directional high absorbed electromagnetic interference shielding. J Appl Polym Sci 2022. [DOI: 10.1002/app.53340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Affiliation(s)
- Bozhen Wu
- College of Materials Science and Engineering Zhejiang University of Technology Hangzhou China
| | - Renrong Liu
- College of Materials Science and Engineering Zhejiang University of Technology Hangzhou China
| | - Yuhao Yang
- College of Materials Science and Engineering Zhejiang University of Technology Hangzhou China
| | - Honghao Zhu
- College of Materials Science and Engineering Zhejiang University of Technology Hangzhou China
| | - Yujing Yu
- College of Materials Science and Engineering Zhejiang University of Technology Hangzhou China
| | - Jiang Huang
- College of Materials Science and Engineering Zhejiang University of Technology Hangzhou China
| | - Yulin Li
- Key Laboratory for Ultrafine Materials of Ministry of Education, Engineering Research Center for Biomedical Materials of Ministry of Education, Frontiers Science Center for Materiobiology and Dynamic Chemistry East China University of Science and Technology Shanghai China
- Wenzhou Institute of Shanghai University Wenzhou China
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Liu R, Li T, Xu J, Zhang T, Xie Y, Li J, Wang L. Sandwich-structural Ni/Fe 3O 4/Ni/cellulose paper with a honeycomb surface for improved absorption performance of electromagnetic interference. Carbohydr Polym 2021; 260:117840. [PMID: 33712175 DOI: 10.1016/j.carbpol.2021.117840] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Revised: 01/19/2021] [Accepted: 02/16/2021] [Indexed: 10/22/2022]
Abstract
Highly efficient shielding materials with an excellent electromagnetic wave absorption have gained increased attention. A new design was used to provide cellulose paper with a high electromagnetic shielding effectiveness (EMI SE) and improve the absorption performance by constructing an asymmetry sandwich structure that consisted of a dense nickel coating, Fe3O4 nanoparticles and a porous nickel layer. This unique structure caused a "multiple reflection-absorb-reflection" process when the electromagnetic waves penetrated the sample. The EMI absorption (SEA) and total SE (SET) increased with Fe3O4 absorption time increasing at 8.2-12.4 GHz, which was attributed to the synergistic effect between porous nickel layer and Fe3O4 nanoparticles. The SEA and SET of the sample with a thickness of 0.195 mm can achieved 18.57 and 41.88 dB, respectively. The design was conducive to improving the magnetic and corrosion resistance properties. This study provided a novel path to obtain a low cost and lightweight electromagnetic shielding material that can reduce secondary radiation.
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Affiliation(s)
- Ruoting Liu
- Key Laboratory of Bio-Based Materials Science and Technology of Ministry of Education, Northeast Forestry University, 26th Hexing Road, Xiangfang District, Harbin, 150040, PR China
| | - Tingting Li
- Key Laboratory of Bio-Based Materials Science and Technology of Ministry of Education, Northeast Forestry University, 26th Hexing Road, Xiangfang District, Harbin, 150040, PR China
| | - Jin Xu
- Key Laboratory of Bio-Based Materials Science and Technology of Ministry of Education, Northeast Forestry University, 26th Hexing Road, Xiangfang District, Harbin, 150040, PR China
| | - Tongcheng Zhang
- Key Laboratory of Bio-Based Materials Science and Technology of Ministry of Education, Northeast Forestry University, 26th Hexing Road, Xiangfang District, Harbin, 150040, PR China
| | - Yanjun Xie
- Key Laboratory of Bio-Based Materials Science and Technology of Ministry of Education, Northeast Forestry University, 26th Hexing Road, Xiangfang District, Harbin, 150040, PR China
| | - Jian Li
- Key Laboratory of Bio-Based Materials Science and Technology of Ministry of Education, Northeast Forestry University, 26th Hexing Road, Xiangfang District, Harbin, 150040, PR China
| | - Lijuan Wang
- Key Laboratory of Bio-Based Materials Science and Technology of Ministry of Education, Northeast Forestry University, 26th Hexing Road, Xiangfang District, Harbin, 150040, PR China.
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