Highly Conductive Ag/pCF/MVQ Composite Rubber for Efficient Electromagnetic Interference Shielding

Yang Chen; Xiao-Ming Shao; Liang He; Yi-Nuo Xu; Qi-Yuan Yao; Ding Feng; Wen-Cai Wang

doi:10.1007/s10118-024-3108-6

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Highly Conductive Ag/pCF/MVQ Composite Rubber for Efficient Electromagnetic Interference Shielding

RESEARCH ARTICLE | Updated：2024-05-11

- Highly Conductive Ag/pCF/MVQ Composite Rubber for Efficient Electromagnetic Interference Shielding
- Chinese Journal of Polymer Science Vol. 42, Issue 6, Pages: 864-873(2024)
- Affiliations：
  
  a.State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China
  b.Key Laboratory of Beijing City for Preparation and Processing of Novel Polymer Materials, Beijing University of Chemical Technology, Beijing 100029, China
  c.Sino-german School of Engineering, Qingdao University of Science and Technology, Qingdao 266400, China
- Author bio：
  
  wangw@buct.edu.cn
- Funds：
- DOI：10.1007/s10118-024-3108-6
  CLC：
- Received：03 January 2024，
  
  Revised：2024-2-8，
  
  Accepted：18 February 2024，
  
  Online First：03 April 2024，
  
  Published：01 June 2024
- Accepted：
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Chen, Y.; Shao, X. M.; He, L.; Xu, Y. N.; Yao, Q. Y.; Feng, D.; Wang, W. C. Highly conductive Ag/pCF/MVQ composite rubber for efficient electromagnetic interference shielding. Chinese J. Polym. Sci. 2024, 42, 864–873

Yang Chen, Xiao-Ming Shao, Liang He, et al. Highly Conductive Ag/pCF/MVQ Composite Rubber for Efficient Electromagnetic Interference Shielding[J]. Chinese Journal of Polymer Science, 2024, 42(6): 864-873.
Chen, Y.; Shao, X. M.; He, L.; Xu, Y. N.; Yao, Q. Y.; Feng, D.; Wang, W. C. Highly conductive Ag/pCF/MVQ composite rubber for efficient electromagnetic interference shielding. Chinese J. Polym. Sci. 2024, 42, 864–873 DOI： 10.1007/s10118-024-3108-6.

Yang Chen, Xiao-Ming Shao, Liang He, et al. Highly Conductive Ag/pCF/MVQ Composite Rubber for Efficient Electromagnetic Interference Shielding[J]. Chinese Journal of Polymer Science, 2024, 42(6): 864-873. DOI： 10.1007/s10118-024-3108-6.

摘要

In this study

highly conductive composite rubber was prepared by dopamine-assisted electroless silver plating plus mechanical mixing. Thanks to the advantages of low density

high aspect ratio and high conductivity of the silver-plated carbon fibers

the EMI shielding effectiveness of the composite rubber filled with 45 phr of silver-plated carbon fibers reached 111 dB.

Abstract

In this study

flexible and highly conductive composite rubber at low filler content was successfully prepared through polydopamine-assisted electroless silver plating plus mechanical mixing. Firstly

carbon fibers (CF) were activated by polydopamine (PDA) to improve the surface activity by self-polymerization reaction. Next

because of the metal chelating ability of PDA

silver layer was firmly deposited on the surface of CF through a facile electroless silver plating method. Finally

flexible silver-plated carbon fibers (Ag/pCF) silicone rubber composites prepared by mechanical mixing. By using X-ray photoelectron spectroscopy (XPS) and X-ray diffraction (XRD)

the chemical composition and crystal structure of Ag/pCF were examined

and scanning electron microscopy (SEM) was used to assess the surface morphology of the Ag/pCF. The results showed that a uniform and dense silver layer was formed on the surface of the CF

and the conductivity of the Ag/pCF could reach 7885 S/cm. It was noteworthy that the composite rubber filled with only 45 phr Ag/pCF had a high electromagnetic interference shielding effectiveness (100 dB) due to the low density and high aspect ratio of Ag/pCF. The composite rubber has excellent potential for application in the field of electromagnetic interference shielding.

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references

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