1. Capillarity-assisted assembly of composite fibers to enable highly conductive fabrics for electromagnetic interference shielding.
- Author
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Lu, Ying, Xu, Jiali, Liu, Yutong, Ban, Jingling, Li, Xiufang, Li, Mufang, Zhou, Yang, Wang, Dong, and Piao, Longhai
- Subjects
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ELECTROMAGNETIC shielding , *ELECTROMAGNETIC interference , *FIBROUS composites , *NANOWIRES , *ELECTRONIC equipment , *FIBER testing , *ADHESIVE tape - Abstract
Poor adhesion between silver nanomaterials and substrates seriously restricts the development of electronic composite devices. In this work, flexible and conductive silver nanowires/fibroin/degummed silk (AgNWs/fibroin/dSF) composite fibers with high adhesion and conductivity via capillarity-assisted assembly for electromagnetic interference (EMI) shielding are designed and fabricated by a facile and scalable all-solution dip-coating method. The nanocomposite fiber possesses high conductivity with a resistance of 8.8 Ω/cm at a low AgNWs/fibroin loading of 19.3 wt%. The assistance of the capillary force in the fiber highly increases the mass of deposited AgNWs. Furthermore, the AgNWs show high adhesion on the fibers in the tape-peel test. The enhanced deposition factors and mechanisms are detailly investigated. Moreover, the composite fibers are further woven into a soft and flexible fabric. The composite fabric shows an absorption-dominated EMI shielding performance with an efficient shielding effectiveness of 38 dB. The capillarity-assisted assembly is an attractive procedure for constructing high-conductive and uniform coatings for a wide application. [Display omitted] [ABSTRACT FROM AUTHOR]
- Published
- 2024
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