Figure 3
From: Ultra-stretchable hydrogels with hierarchical hydrogen bonds
| Photographs of D50A50U0.2 hydrogel before (a) and after compression. (b) (v = 5 mm/min). (c) Calculated decay of maximum stress and hysteresis area from stress–strain curves of the hydrogel in 5 cyclic compression tests. (a, b) was edited by WPS Office with the version 11.1.0.9513. https://pc.wps.cn/.
