Figure 3.

Self‐strengthening and tailored mechanical properties. a) Stress–strain curves, b) Young's modulus, and c) tensile stress of IG1‐4‐0.5, IG1‐4‐1.0, and IG1‐4‐1.5, respectively. d) Cyclic stress–strain curves of the IG1‐4‐1.5. e) Adhesion strength of IG1‐4‐1.5 for different substrates in the air and underwater. f) The possible adhesion mechanisms between the ionogel and various substrates. g) Weight change of the IG1‐4‐1.5 as a function of time. W₀ and W correspond to the initial weight, and the weight at different times, respectively. h) Ionic conductivity of ionogels with different contents of IL. Resistance changes of artificial finger bending and releasing movements monitored by IG1‐4‐1.5 based sensor i) in the air and j) underwater. Data in (b,c,e,h) are means ± S.D., n = 3.