Fig. 3: Mechanical and self-healing performances.
a 2D SAXS images of the 16 wt% TA-WS2/PU with different tensile strain during uniaxial stretching process. b 1D scattering profiles of 16 wt% TA-WS2/PU integrated from 2D SAXS patterns under different strains. c Schematic illustrations of the nanostructure of the original sample and stretching sample. d–h Mechanical self-healing performance of PU composites filled with different contents of TA-WS2. i Comparison of tensile strength and self-healing efficiency of our TA-WS2/PU nanocomposite with different filler content. j Photographs demonstrating excellent mechanical property of self-healed 16 wt% TA-WS2/PU composites when stretched and lift a weight. k Comparison of Young’s modulus, elongation at break, ultimate tensile strength, toughness, self-healing efficiency, and functional-healing ability of our nanocomposite with other self-healing materials.
