J. Mater. Sci. Technol. ›› 2025, Vol. 228: 189-199.DOI: 10.1016/j.jmst.2024.12.033

• Research article • Previous Articles     Next Articles

Scalable and sustainable electromagnetic shielding and fireproofing enhancement of carbon fiber reinforced plastics using MXene-infused reclaimed carbon fiber veils

Yunzhongze Hu, Xiaosu Yi, Gongyu Liu, Haonan Li, Xin Wang, Xiaoye Cong, Xiaoling Liu*   

  1. Faculty of Science and Engineering, University of Nottingham Ningbo China, Ningbo 315100, China
  • Received:2024-10-01 Revised:2024-11-20 Accepted:2024-12-01 Published:2025-09-01 Online:2025-09-01
  • Contact: *E-mail addresses: xiaoling.liu@nottingham.edu.cn (X. Liu)

Abstract: Carbon fiber-reinforced plastics (CFRPs) possess pronounced anisotropic properties, necessitating advancements in through-thickness electrical conductivity and other functionalities without compromising mechanical integrity. MXenes, as an emerging family of two-dimensional nanomaterials, have demonstrated significant potential for enhancement modification in this area. However, achieving uniform distribution and effective utilization on a large scale with low filler content has posed a significant challenge. Herein, a highly lightweight, flexible, and functional Ti3C2Tx/ poly(3,4-ethylene-dioxythiophene) poly (styrene sulfonate) (PEDOT: PSS) /Ammonium polyphosphate (APP) reclaimed carbon fiber (rCF) veil reinforced plastics (MPA-rCFRPs) was fabricated through large-scale vacuum-assisted filtration and autoclave technology. The modified MPA-rCFRPs have exhibited substantial improvements in electromagnetic shielding with MXene additive amounts as low as 0.24 %-1.07 %, increasing the electro-magnetic interference shielding effectiveness (EMI SE) to 87.12 dB, improved by 350.02 %. Remarkably, the through-thickness electrical conductivity of MPA-rCFRPs exhibited a 767.14 % improvement, escalating from 19.73 S/m to 151.41 S/m. Meanwhile, the modified composites have exhibited enhanced photothermal, electrothermal, and flame-retardant properties, and the above improvements have not shown a significant impact on the mechanical properties of the material. This work represents a practical solution for the construction of large-scale MXene-based carbon fiber composites and opens the door to functional reutilization of rCF materials.

Key words: Reclaimed carbon fiber, MXene, PEDOT: PSS, Electromagnetic interference shielding, Flame retardant, Ti3C2Tx