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Page 44 of 57                                                       Zheng et al. Soft Sci. 2026, 6, 32





               Table 4. Framework for evaluating the appropriateness of graphene and MXene fibers for textile production
               Assessment      Key evaluation metrics  GF status       MXene fiber status   Ref.
               dimension
                                                   Continuous spinning up to 75  Continuous MXene/PU fibers
                               Continuous fiber length  m·h  (100-hole spinneret)  of ~100 m length
                                                     -1
                               Diameter uniformity
               Spinnability and                    Demonstrated weaving into  Industrial-scale knitting of
               weavability     Knot efficiency     fabric prototypes   MXene-coated cotton yarns  [42,53,78,121-136,143]
                               Compatibility with industrial  High-speed spinning of  3D-knitted energy storage
                               looms/knitting machines
                                                   composites: 4,500 m·h -1  textiles demonstrated
                                                                       MXene-coated fabrics
                                                   Graphene/LCE composite
                               Minimum bending radius                  withstand > 1,000 bending
               Flexibility and  Bending cycle stability  fibers show stable actuation  cycles with <​ 5% resistance
               bendability     (ΔR/R0)             after repeated bending  change           [53,104,120,130]
                               Drapability and hand feel  GF fabrics retain flexibility  MXene/silk fibers exhibit
                                                   after thermal reduction
                                                                       excellent drapability
                                                                       MXene/CNT yarn
                                                                       supercapacitors retain 86.3%
                                                   GO/carbon fiber electrodes  capacitance after 10,000
                                                   retain 99.58% capacitance
               Mechanical      Tensile fatigue life                    cycles
               robustness under  Abrasion resistance  after 15,000 cycles under 30  MXene-coated textiles show  [93,163,173]
               cyclic deformation  Washability     kPa load            ~90% EMI SE retention after 2
                                                   Limited systematic  years storage, but wash
                                                   washability data for pure GFs
                                                                       durability remains a key
                                                                       challenge
                                                                       MXene surfaces enable
                               Dyeability          GFs can be integrated with  covalent grafting (e.g., Ti–N
                               Lamination/adhesion to  cotton/polyester blends via  bonds with nylon) for durable
               Post-processing  polymeric coatings  conventional weaving  coatings          [59,77,130,136]
               compatibility   Compatibility with chemical  Surface functionalization for  Multilayer coating strategies
                               finishing (e.g., waterproofing,  enhanced adhesion reported,  demonstrated for
                               flame retardancy)   but systematic studies lacking
                                                                       multifunctional finishes
               GF: Graphene fiber; PU: polyurethane; LCE: liquid crystal elastomer; CNT: carbon nanotube; EMI: electromagnetic interference; SE:


               To accomplish performance integration and long-term protection, one important strategy is to create
               core-shell structures, in which a high-strength, tough, or functional polymer or nanofiber shell encloses a
               highly conductive MXene or GF core. For instance, Ye et al. created MXene@GO core-shell fibers; Figure
               15A depicts a schematic of coaxial wet spinning . Highly orientated interior MXene layers were created by
                                                       [175]
               the spatial confinement effect of the GO shell during spinning (cross-sectional SEM in Figure 15B), which
               simultaneously improved conductivity and structural order. In order to create composite fibers with
               MXene/CNFs as the core and ANFs as the sheath, He et al. used coaxial hydrospinning. Because of its dense
               structure, the ANF shell in this structure not only offers a superior mechanical framework but also efficiently
               separates water and oxygen, greatly delaying the oxidation of the inside MXene and increasing the fiber’s
               longevity [122] . Similarly, designs that use thin layers of GO, PU, or RC as the shell layer have also been
               frequently used [114,157] .


               Platelets’ size synergy and orderly assembly are essential for microstructural regulation. The “large-small
               platelet blending” technique efficiently optimizes the structure of GFs: small-sized GO sheets fill pores and
               defects, increasing fiber density and the conductive network’s connectivity, while large-sized GO sheets
               function as a continuous framework, guaranteeing high orientation and mechanical integrity . The
                                                                                                    [15]
               propensity of their dispersion to form nematic liquid crystals is advantageous for MXene fibers. Highly
               oriented sheet alignment along the fiber axis can be accomplished during hydrospinning by use of shear
               forces and spatial confinement [114] . Controlling the direction of sheet alignment precisely is another area of
               innovation. For instance, Guan et al. developed a fluid-driven hydrospinning strategy for the continuous
               fabrication of vertically aligned rGO/MXene fibres bridged by carbon nanotubes (CNT-VA-GMF) [176] . The
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