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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Data Availability Statement
Data requiring special software tools to open. The related data (DOI:https://doi.org/10.57760/sciencedb.j00189.00041; CSTR:31253.11.sciencedb.j00189.00041) of this paper can be accessed in the Science Date Bank database https://www.scidb.cn/s/rlzQ3, and the software for opening the data is Origin 2021.
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This work was financially supported by the National Natural Science Foundation of China (No. 51833002).
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Chen, Y., Shao, XM., He, L. et al. Highly Conductive Ag/pCF/MVQ Composite Rubber for Efficient Electromagnetic Interference Shielding. Chin J Polym Sci 42, 864–873 (2024). https://doi.org/10.1007/s10118-024-3108-6
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DOI: https://doi.org/10.1007/s10118-024-3108-6