近期论文

近期论文

Industrial Crops & Products DOI:10.1016/j.indcrop.2020.112973

    Natural resilin represents one of the most famous biological materials with outstanding mechanical properties, which is the high resilience. Until now, the fabrication of hydrogels with high resilience to mimic resilin is still a challenge. Herein, a strategy is developed for the preparation of strong, tough, and high resilient hydrogels. Cericion/hydroxyl redox initiated graft polymerization of polyacrylamide is applied to integrate cellulose nanocrystals into the chemical networks of hydrogels. With the addition of N, N -methylene bisacrylamide as chemical cross-linker, polymer networks with cellulose nanocrystals as net-points formed. Chemically bonded cellulose nano-crystals provide hydrogels with high strength and toughness. After mechanical pretreatment, the optimizedpolymer networks further provide the hydrogels with high resilience (~92%). Moreover, the mechanical properties of high resilient hydrogels can be finely tuned via adjusting the N, N -methylene bisacrylamide or cellulose nanocrystals contents, providing the opportunities to prepared hydrogel with high strength, hightoughness, and high resilience that mimic different kind of elastic proteins.



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