可拉伸坚韧水凝胶的“冻结”、变形及折叠
"Freezing", morphing, and folding of stretchy tough hydrogels.
作者信息
Li Tianzhen, Wang Jiahui, Zhang Liyun, Yang Jinbin, Yang Mengyan, Zhu Deyong, Zhou Xiaohu, Handschuh-Wang Stephan, Liu Yizhen, Zhou Xuechang
机构信息
College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518060, P. R. China.
出版信息
J Mater Chem B. 2017 Aug 7;5(29):5726-5732. doi: 10.1039/c7tb01265a. Epub 2017 Jul 12.
Highly stretchable and tough Ca-alginate/polyacrylamide hydrogels were "frozen" and folded into program-controlled shapes by exposing them to an Fe ion aqueous solution. The elastic modulus of the as-made tough gels increased either in bulk or locally up to 2.90 MPa, while the toughness remained within the range from 8.18 to 4.41 kJ m.
高度可拉伸且坚韧的海藻酸钙/聚丙烯酰胺水凝胶通过暴露于铁离子水溶液中被“冷冻”并折叠成程序控制的形状。制成的坚韧凝胶的弹性模量在整体或局部增加至2.90兆帕，而韧性保持在8.18至4.41千焦/平方米的范围内。
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