Fig. 3: Mechanical properties of the C-SL-G organohydrogels. | Nature Communications

Fig. 3: Mechanical properties of the C-SL-G organohydrogels.

From: Compressible, anti-fatigue, extreme environment adaptable, and biocompatible supramolecular organohydrogel enabled by lignosulfonate triggered noncovalent network

Fig. 3

a Compressive stress-strain curves (inset shows magnified plot in the low-strain region) and b modulus and compressive toughness of the C-G hydrogel after soaking in SL1-EG solutions at various concentrations. Values in b represent their means ± SDs from n = 3 independent samples. c Comparison plots of C-SL-G organohydrogels in this work with other tough hydrogels by strength versus strain. d Photographs of the C-SL-G organohydrogel subjected to various external forces. e Photographs of the C-SL-G organohydrogel pierced with nails. f Photograph of the C-SL-G organohydrogel supporting the weight of a human body in which the structure maintains intact after loading. g Force-frequency curve of the C-SL-G organohydrogel over 500,000 consecutive spaceless loading-unloading cycles at constant strain (ε = 0.5). h Weight change of the C-SL-G organohydrogel with 500,000 successive loading-unloading cycles without interval under a constant strain (ε = 0.5). i Mechanism diagram of self-recovery and anti-fatigue ability: during compression-recovery, noncovalent bond breaks, and new bonds were formed.

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