期刊
JOURNAL OF APPLIED POLYMER SCIENCE
卷 137, 期 38, 页码 -出版社
WILEY
DOI: 10.1002/app.49146
关键词
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资金
- Research and development of inkjet technique and nozzle devices [Y5ZCY11002]
- Research on MEMS Piezoelectric Nozzle for Powder Bonded 3D Printer [Y8AAY11001]
- [SYG201632]
Hydrogels with tough strength, programmable deformation are crucial for their practical applications. In this work, we reported the preparation and the programmable shape deformations of highly stretchable hydrogel. The graphene oxide/polyacrylamide/sodium alginate composite hydrogel was prepared, its microstructure and mechanical properties were studied. An aqueous calcium solution was selectively printed onto the hydrogel surfaces using an inkjet printer, resulting in programmable deformation of the composite hydrogel by creating regions of swelling/deswelling when subjected to external stimulations. Next, we fabricated a pressure-capacitance hydrogel sensor to demonstrate its application. Furthermore, the deformation rate and extent of the hydrogels can be controlled by adjusting the printing pattern position, number, length, and calcium solution concentration. Finally, several complex 2D and 3D shapes were fabricated by printing appropriate patterns on one or both surfaces of the hydrogel sheets.
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