期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 58, 期 32, 页码 10951-10955出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201904932
关键词
bioinspired materials; hydrogels; hydrogen bonding; self-healing; water
资金
- National Natural Science Foundation of China [NSFC 21706161, 61875138]
- Natural Science Foundation of Guangdong [2017A030310444]
- Shenzhen Science and Technology Innovation Committee [JCYJ20170818091601315, KQTD2015032416270385]
- Guangdong Province Univerisities and Colleges Pearl River Scholar Funded Scheme (2018)
- Shenzhen Overseas High-level Talents Key Foundation for Innovation and Entrepreneurship
Sponges, Neofibularia nolitangere, can regenerate spontaneously after being broken down into small pieces, and the regenerated structure maintains the original appearance and function. Synthetic materials with such capabilities are highly desired but hardly achieved. Presented here is a sponge-inspired self-regenerative powder from a double-network (DN) tough hydrogel. Hydrogels are regenerated from their powder form, by addition of water, with preservation of the original appearance and mechanical properties. The powder-hydrogel-powder cycle can be repeated multiple times with little loss in mechanical properties, analogous to the regeneration of sponges. These DN hydrogels can be conveniently stored and easily shaped upon regeneration. This work may have implications in the development of regenerative materials for coatings and adhesives.
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