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Multifunctional CNT/cellulose-BN/PVA Composites Integrating Dual-continuous Network Structure with Gradient Conductivity for Electromagnetic Interference Shielding and Joule Heating.

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Title: Multifunctional CNT/cellulose-BN/PVA Composites Integrating Dual-continuous Network Structure with Gradient Conductivity for Electromagnetic Interference Shielding and Joule Heating.
Authors: Wang, Xiao-Rui1 (AUTHOR), Liu, Ting-Ting2 (AUTHOR), Cui, Cheng-Hua3 (AUTHOR), Xu, Xin4 (AUTHOR), Zhang, Liang-Qing1 (AUTHOR) liangqingzhang@xust.edu.cn
Source: Chinese Journal of Polymer Science (Springer Science & Business Media B.V.). Mar2026, Vol. 44 Issue 3, p803-812. 10p.
Subjects: Electromagnetic shielding, Resistance heating, Cellulose, Composite materials, Carbon nanotubes, Polyvinyl alcohol, Boron nitride
Abstract: In this study, an architecture featuring a gradient conductive network structure and three-dimensional dual-continuous network structure is constructed in a carbon nanotubes/cellulose-boron nitride/poly(vinyl alcohol) (CNT/cellulose-BN/PVA) composite. Using cellulose aerogel as a template, CNT were incorporated into the cellulose template by vertically impregnating the CNT suspension. Following the impregnation of BN/PVA and high-pressure compression, three-dimensional dual-continuous network structure was successfully constructed in the CNT/cellulose-BN/PVA composite. The comprehensive performance of the composite, including electromagnetic interference (EMI) shielding and Joule heating performance, was investigated. The results indicate that the total EMI shielding effectiveness (SE) for the CNT/cellulose-BN/PVA composite reveals similar values for electromagnetic waves incident from different directions, but totally different shielding mechanisms. For the CNT/cellulose-BN/PVA composite with three impregnation cycles of CNT, the EMI SE values exceeded 39 dB for electromagnetic waves incident from both the high- and low-CNT-content sides. 93% of the microwaves were reflected when electromagnetic waves were incident from the high-CNT-content side, while the reflection coefficient decreased to 0.44 for the transverse direction. In addition, the construction of the dual-continuous network structure enabled the composite to exhibit both excellent electrical conductivity and good thermal conductivity simultaneously, endowing the material with good Joule heating performance. CNT/cellulose-BN/PVA composite films have significant potential for application as EMI shielding materials in extremely cold weather. [ABSTRACT FROM AUTHOR]
Copyright of Chinese Journal of Polymer Science (Springer Science & Business Media B.V.) is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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DbLabel: Engineering Source
An: 192432539
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PubTypeId: academicJournal
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  Data: Multifunctional CNT/cellulose-BN/PVA Composites Integrating Dual-continuous Network Structure with Gradient Conductivity for Electromagnetic Interference Shielding and Joule Heating.
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  Data: <searchLink fieldCode="DE" term="%22Electromagnetic+shielding%22">Electromagnetic shielding</searchLink><br /><searchLink fieldCode="DE" term="%22Resistance+heating%22">Resistance heating</searchLink><br /><searchLink fieldCode="DE" term="%22Cellulose%22">Cellulose</searchLink><br /><searchLink fieldCode="DE" term="%22Composite+materials%22">Composite materials</searchLink><br /><searchLink fieldCode="DE" term="%22Carbon+nanotubes%22">Carbon nanotubes</searchLink><br /><searchLink fieldCode="DE" term="%22Polyvinyl+alcohol%22">Polyvinyl alcohol</searchLink><br /><searchLink fieldCode="DE" term="%22Boron+nitride%22">Boron nitride</searchLink>
– Name: Abstract
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  Data: In this study, an architecture featuring a gradient conductive network structure and three-dimensional dual-continuous network structure is constructed in a carbon nanotubes/cellulose-boron nitride/poly(vinyl alcohol) (CNT/cellulose-BN/PVA) composite. Using cellulose aerogel as a template, CNT were incorporated into the cellulose template by vertically impregnating the CNT suspension. Following the impregnation of BN/PVA and high-pressure compression, three-dimensional dual-continuous network structure was successfully constructed in the CNT/cellulose-BN/PVA composite. The comprehensive performance of the composite, including electromagnetic interference (EMI) shielding and Joule heating performance, was investigated. The results indicate that the total EMI shielding effectiveness (SE) for the CNT/cellulose-BN/PVA composite reveals similar values for electromagnetic waves incident from different directions, but totally different shielding mechanisms. For the CNT/cellulose-BN/PVA composite with three impregnation cycles of CNT, the EMI SE values exceeded 39 dB for electromagnetic waves incident from both the high- and low-CNT-content sides. 93% of the microwaves were reflected when electromagnetic waves were incident from the high-CNT-content side, while the reflection coefficient decreased to 0.44 for the transverse direction. In addition, the construction of the dual-continuous network structure enabled the composite to exhibit both excellent electrical conductivity and good thermal conductivity simultaneously, endowing the material with good Joule heating performance. CNT/cellulose-BN/PVA composite films have significant potential for application as EMI shielding materials in extremely cold weather. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Chinese Journal of Polymer Science (Springer Science & Business Media B.V.) is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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      – Type: doi
        Value: 10.1007/s10118-025-3520-6
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      – Code: eng
        Text: English
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        PageCount: 10
        StartPage: 803
    Subjects:
      – SubjectFull: Electromagnetic shielding
        Type: general
      – SubjectFull: Resistance heating
        Type: general
      – SubjectFull: Cellulose
        Type: general
      – SubjectFull: Composite materials
        Type: general
      – SubjectFull: Carbon nanotubes
        Type: general
      – SubjectFull: Polyvinyl alcohol
        Type: general
      – SubjectFull: Boron nitride
        Type: general
    Titles:
      – TitleFull: Multifunctional CNT/cellulose-BN/PVA Composites Integrating Dual-continuous Network Structure with Gradient Conductivity for Electromagnetic Interference Shielding and Joule Heating.
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          Name:
            NameFull: Wang, Xiao-Rui
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            NameFull: Liu, Ting-Ting
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            NameFull: Cui, Cheng-Hua
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            NameFull: Xu, Xin
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            NameFull: Zhang, Liang-Qing
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            – D: 01
              M: 03
              Text: Mar2026
              Type: published
              Y: 2026
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              Value: 44
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            – TitleFull: Chinese Journal of Polymer Science (Springer Science & Business Media B.V.)
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