Extended Data Fig. 7: Application of nanoconfinement to elastomer-like organo-hydrogels.
From: Stiff and self-healing hydrogels by polymer entanglements in co-planar nanoconfinement
a, Schematic illustration of Hec-PAAm organo-hydrogels containing glycerol/water solvent mixture. b, Tensile stress-strain curves of pristine and self-healed Hec-PAAm organo-hydrogels. Self-healing in side-by-side geometry for 24 hours at 60 °C with overlapped distance of 2 mm. c, Lap-shear adhesion tests of organo-hydrogels on glass. Inset shows photograph of a piece of 1 cm2 organo-hydrogel holding a weight of 35 kg in lap shear configuration. Scale bar: 20 cm. d, Self-healing of nanoconfined organo-hydrogels outperforms self-healing elastomeric systems in terms of Young’s modulus. e, Ultimate tensile stress of self-healed organo-hydrogels outperforms reported self-healing elastomeric systems and hydrogels in terms of Young’s modulus. f, Radar map showing superior Young’s modulus, UTS, self-healing efficiency and adhesion strength on glass in the nanoconfined organo-hydrogel compared to reported self-healing elastomeric adhesives. Results in d-f are averaged from 3 measurements. All organo-hydrogels contained 2.7 wt% Hec and 67 wt% PAAm in a glycerol/water (55:45) solvent mixture.
