Hydrogel with ultrafast self-healing property both in air and underwater

Wei Peng Chen, De Zhao Hao, Wan Jun Hao, Xing Lin Guo, Lei Jiang

Research output: Contribution to journalArticleResearchpeer-review

206 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)1258-1265
Number of pages8
JournalACS Applied Materials & Interfaces
Volume10
Issue number1
DOIs
Publication statusPublished - 10 Jan 2018
Externally publishedYes

Keywords

  • double-network hydrogels
  • dynamic borate bond
  • smart self-healing
  • ultra-fast
  • underwater

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