Fig. 4: Generality of the strategy, applicability and recyclability of the SM-PVA hydrogels. | Nature Communications

Fig. 4: Generality of the strategy, applicability and recyclability of the SM-PVA hydrogels.

From: Tough and tear resistant hydrogel with a sandwich mineralized structure induced by bidirectional ion migration

Fig. 4

The generality of the freeze-assisted bidirectional ion migration strategy to enhance hydrogels with different combinations of mineral cations (a) and anions (b). Data are presented as mean values ± SD (n = 3). c–f Damping performance of SM-PVA hydrogel fibers. Time-resolved impact force oscillation and photographs of freely falling objects buffered by cotton yarn (c, d) and the hydrogel fibers (e, f). In the hydrogel experimental group, a segment of SM-PVA was incorporated as a shock absorber in the middle of the cotton thread. g Identification of different ankle bending extents using the SM-PVA/CNTs–OH hydrogel sensor. h Cyclic stability of the SM-PVA/CNTs–OH hydrogel sensor under stretching during 4000 s. i Recycling process of the SM-PVA hydrogel. j Hydrogel recyclability and stress–strain recovery over second and third cycles.

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