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- Title
L-Cysteine-Encapsulated MXene Nanosheet Possessing Ultra-Antioxidation in Aqueous Suspension for Electrophoretic Deposition Assisted Carbon-Fiber-Surface Modification.
- Authors
Ling Huang; Zheyuan Du; Yanhong Tian; Jiangman Sun; Jinglong Li; Yue Xing; Xiubing Liang; Xuejun Zhang
- Abstract
With recent progress in 2D materials, Ti3C2Tx MXene featured high metallic electrical conductivity, high electromagnetic interference shielding effectiveness, and super in-plane stiffness, exhibits unique advantages in many fields, but is rarely applied as a sizing agent in long-time continuous processing of carbon fiber sizing because of its poor ambient stability in aqueous suspension. Herein, a new strategy to chemically encapsulate the reactive sites of MXene nanosheet with l-cysteine for restricting the attacking of water and/or oxygen in aqueous suspension is proposed. Based on the ultra-antioxidation, polarity, and electrical properties of l-cysteine-encapsulated Ti3C2Tx MXene (LC-MX) nanosheet, the LC-MX, even if aging for weeks in aqueous suspension, can be deposited on the surface of high-modulus carbon fiber (HMCF) uniformly via the electrophoretic deposition assisted sizing. Benefiting from the enhanced surface energy, wettability, and roughness of LC-MX-sized HMCF (HMCF-LCMX) relative to that of unsized one (U-HMCF), the interfacial property of HMCF-LCMX/epoxy (EP) composites is also improved, for which the interlayer shear strength (ILSS) of the composite reached 88.5 MPa, 52.8% higher than that of U-HMCF/EP composite (57.9 MPa). This work makes an essential step toward the application of ultra-stable MXene nanosheet suspension in large-scale continuous carbon fiber sizing.
- Subjects
ELECTROPHORETIC deposition; CARBON fibers; ELECTROMAGNETIC interference; ELECTROMAGNETIC shielding; ELECTRIC conductivity; SHEAR strength
- Publication
Advanced Materials Interfaces, 2024, Vol 11, Issue 7, p1
- ISSN
2196-7350
- Publication type
Article
- DOI
10.1002/admi.202300851