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Uniaxial tensile characterizations of eight different SF/PLLA nanoyarns with/without hot stretching. (a) Representative load–elongation curves. (b) Load at failure (n = 3; ∗p < 0.05, ∗∗p < 0.001, ∗∗∗p < 0.0001). (c) Ultimate tensile stress (n = 3; ∗p < 0.05, ∗∗p < 0.001, ∗∗∗p < 0.0001). (d) Young's modulus (n = 3; ∗p < 0.05, ∗∗p < 0.001, ∗∗∗p < 0.0001). (e) Elongation at failure (n = 3; ∗p < 0.05, ∗∗p < 0.001, ∗∗∗p < 0.0001).
