Hydrogel with Ultrafast Self-Healing Property Both in Air and Underwater

被引：277

作者：

Chen, Wei-Peng ^{[1
,2
]}

Hao, De-Zhao ^{[3
,4
]}

Hao, Wan-Jun ^{[1
]}

Guo, Xing-Lin ^{[2
]}

Jiang, Lei ^{[3
]}

机构：

[1] Hainan Univ, Hainan Trop Isl Resources Minist Educ, Key Lab Adv Mat, Haikou 570228, Hainan, Peoples R China

[2] Chinese Acad Sci, Inst Chem, Key Lab Green Printing, BNLMS, Beijing 100190, Peoples R China

[3] Chinese Acad Sci, Tech Inst Phys & Chem, Beijing 100190, Peoples R China

[4] Univ Chinese Acad Sci, Sch Future Technol, Beijing 100190, Peoples R China

来源：

ACS APPLIED MATERIALS & INTERFACES | 2018年 / 10卷 / 01期

基金：

国家高技术研究发展计划(863计划);

关键词：

ultra-fast; dynamic borate bond; smart self-healing; underwater; double-network hydrogels; DOUBLE-NETWORK HYDROGELS; MECHANICAL-PROPERTIES; POLY(VINYL ALCOHOL); HIGH-TOUGHNESS; HIGH-STRENGTH; PVA-HYDROGEL; COMPLEXATION; ADSORBENTS; CHEMISTRY; BORATE;

D O I：

10.1021/acsami.7b17118

中图分类号：

TB3 [工程材料学];

学科分类号：

082905 [生物质能源与材料];

摘要：

Self-healing hydrogels have a great potential application in 3D printing, soft robotics, and tissue engineering. There have been a large number of successful strategies for developing hydrogels that exhibit rapid and autonomous recovery. However, developing a gel with an excellent self-healing performance within several seconds is still an enormous challenge. Here, an ultrafast self-healing hydrogel based on an agarose/PVA double network (DN) is presented. The gel utilizing a dynamic borate bond exhibits 100% cure in strength and elongation after healing for 10 s in air, and this hydrogel shows an excellent self-healing property underwater as well. In addition, the agarose/PVA DN hydrogel exhibits a smart self-healing property for an in situ priority recovery, ensuring that the shape and the function are the same as those of the original one. With the combination of self-healing properties, such a hydrogel could be applied to a board range of areas.

引用

页码：1258 / 1265

页数：8

共 48 条

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Supramolecular Cross-Linked Networks via Host-Guest Complexation with Cucurbit[8]uril [J].