fig11

Figure 11. (A) Fabrication of MGP-T fiber via continuous wet spinning and thermal drawing, and the formation of MXene-based textiles. Reproduced with permission^[119], Copyright © 2022 Springer Nature; (B) Relationship between the MXene ink concentration (volumetric and mass) and the flake size (lateral size and aspect ratio) for isotropic to nematic phase transformation based on theoretical calculations. The stars represent the theoretical LC transition concentrations for L-Ti₃C₂ and S-Ti₃C₂ dispersions based on their average flake size (3.1 μm and 310 nm, respectively); (C) POM images of aqueous L-Ti₃C₂ and S-Ti₃C₂ inks at various concentrations demonstrating the nematic LC formation based on flake size and concentration; (D) Viscoelastic behavior of L-Ti₃C₂ at a concentration of 26.5 mg·mL^-1 (red solid symbols) and S-Ti₃C₂ at a concentration of 150 mg·mL^-1 (black hollow symbols); (E) Frequency dependency on G’/G” ratio for the L-Ti₃C₂ and S-Ti₃C₂ MXene inks; (F) Cross-sectional SEM images of LC MXene fibers using S-Ti₃C₂ flakes produced in an acetic acid bath. Schematic illustration of the fast coagulation mechanism when acetic acid was used as the coagulation bath (above). Cross-sectional SEM images of S-Ti₃C₂ fibers produced in the chitosan bath. Schematic illustration of the slow coagulation mechanism when chitosan was used as the coagulation bath (below). (B-F) are reprinted with permission from Ref.^[33], Copyright © 2020 American Chemical Society; (G) digital photograph of a ≈ 100-m-long MXene/PU fiber. Reproduced with permission^[142], Copyright © 2020 John Wiley and Sons; (H) Nitrogen adsorption-desorption isotherm of MAF with different dispersion concentrations. The inset is the corresponding specific surface area; (I) Cross-section and surface morphologies of the Ti₃C₂T_x MXene aerogel fibers. (H and I) are reprinted with permission from Ref.^[28], Copyright © 2021 John Wiley and Sons; (J) Cross section SEM images of overall fracture surface and MXene core; (K) Typical tensile stress-strain curves; (L) Proposed fracture process of ANF@M fibers. (J-I) are reprinted with permission from Ref.^[114], Copyright © 2022 Springer Nature. MGP-T: MXene-glutaraldehyde-polyvinyl alcohol fiber after thermal drawing; LC: liquid crystalline; POM: polarizing optical microscope; SEM: scanning electron microscope; PU: polyurethane; MAF: MXene aerogel fiber; ANF: aramid nanofiber; PVA: polyvinyl alcohol; MG: MXene-glutaraldehyde fiber; ET: electrothermal; EMI: electromagnetic interference.