Fabrication of poly(acrylic acid)/boron nitride composite hydrogels with excellent mechanical properties and rapid self-healing through hierarchically physical interactions

Xue, Shishan, Wu, Yuanpeng, Guo, Meiling, Liu, Dan, Zhang, Tao and Lei, Weiwei 2018, Fabrication of poly(acrylic acid)/boron nitride composite hydrogels with excellent mechanical properties and rapid self-healing through hierarchically physical interactions, Nanoscale research letters, vol. 13, pp. 1-10, doi: 10.1186/s11671-018-2800-2.

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Title Fabrication of poly(acrylic acid)/boron nitride composite hydrogels with excellent mechanical properties and rapid self-healing through hierarchically physical interactions
Author(s) Xue, Shishan
Wu, Yuanpeng
Guo, Meiling
Liu, DanORCID iD for Liu, Dan orcid.org/0000-0001-6875-419X
Zhang, Tao
Lei, WeiweiORCID iD for Lei, Weiwei orcid.org/0000-0003-2698-299X
Journal name Nanoscale research letters
Volume number 13
Article ID 393
Start page 1
End page 10
Total pages 10
Publisher SpringerOpen
Place of publication London, Eng.
Publication date 2018-12-05
ISSN 1931-7573
Keyword(s) Boron nitride nanosheets
Hierarchically physical interactions
Self-healing hydrogel
Science & Technology
Technology
Physical Sciences
Nanoscience & Nanotechnology
Materials Science, Multidisciplinary
Physics, Applied
Materials Science
Physics
Summary Many living tissues possess excellent mechanical properties and self-healing ability. To mimic these living tissues, a series of novel composite hydrogels, poly(acrylic acid)/surface-modified boron nitride nanosheets (PAA/BNNS-NH2) were fabricated simply through hierarchically physical interactions: molecular-scale metal coordination interaction between -COOH of PAA and Fe3+ and nanoscale H-bond between -COOH of PAA and -NH2 of BNNS-NH2. The composite hydrogels exhibit both excellent mechanical properties (including enhanced fracture stress, elongation, toughness, Young's modulus, and dissipated energy) and rapid healing ability without any external stimulus. Especially, the B0.5P70 (the hydrogel with BNNS concentration of 0.5 mg mL- 1, the water content of 70 wt%) exhibits a fracture stress of ~ 1311 kPa and toughness of ~ 4.7 MJ m- 3, almost ~ 3 times and ~ 8 times to B0P70, respectively. The excellent properties, combined with the simple preparation method, endow these composite hydrogels with potential applications.
Language eng
DOI 10.1186/s11671-018-2800-2
Field of Research 0204 Condensed Matter Physics
0912 Materials Engineering
1007 Nanotechnology
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2018, The Author(s)
Persistent URL http://hdl.handle.net/10536/DRO/DU:30118724

Document type: Journal Article
Collections: Institute for Frontier Materials
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