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- Title
2D/0D multiscale interfacial engineering of carbon fiber composites for simultaneous achieving high mechanical and electromagnetic interference shielding properties.
- Authors
Guo, Zongwei; Liu, Lin; Ao, Yuhui
- Abstract
In the face of escalating electromagnetic pollution, it is urgently needed to expedite the development of innovative carbon fiber reinforced polymer (CFRP) composites that not only demonstrate superior mechanical properties as well as durability but also boast exceptional electromagnetic interference shielding (EMI) performance. However, given the absence of robust interface interactions and the lack of an outstanding nanostructured conductive network, there remains a need to further elevate the overall performance of CFRP composites. Herein, a highly continuous conductive network by integrating 2D MXene and 0D Ag nanoparticles with strong interlayer interactions was constructed through point‐to‐plane conductive modes, facilitated by polydopamine (PDA). Thanks to the excellent electromagnetic wave loss and the unique multi‐dimensional structure arising from the optimizing interfacial engineering, the EMI shielding effectiveness of the modified CF‐PDA‐M‐Ag/EP composite achieved a remarkable 45.9 dB, obtaining a 99.5% enhancement compared with the neat CF/EP. The synergistic effect resulting from the multi‐dimensional structure and strong interaction can improve the interfacial shear strength (IFSS), interlaminar shear strength (ILSS) and flexure strength of the composite up to 81.9, 85.8 and 864.6 MPa, respectively, far superior to the unmodified composite materials. This research provides a dependable and convenient approach for exploiting high‐performance CFRP composites with intriguing electromagnetic interference (EMI) shielding properties. Highlights: An optimizing multifunctional 2D/0D interface for carbon fiber was designed.A highly conductive network via the point‐to‐plane conductive mode.The EMI shielding effectiveness of the composite reached up to 45.9 dB.
- Subjects
ELECTROMAGNETIC interference; ELECTROMAGNETIC shielding; CARBON composites; FIBROUS composites; COMPOSITE materials; CARBON fibers
- Publication
Polymer Composites, 2024, Vol 45, Issue 8, p7507
- ISSN
0272-8397
- Publication type
Article
- DOI
10.1002/pc.28282