Affiliation:
1. Tianjin Key Laboratory of Composite and Functional Materials School of Materials Science and Engineering Tianjin University Tianjin 300350 China
2. Tianjin Key Laboratory of Biomedical Materials Key Laboratory of Biomaterials and Nanotechnology for Cancer Immunotherapy Institute of Biomedical Engineering Chinese Academy of Medical Sciences and Peking Union Medical College Tianjin 300192 China
3. College of Chemistry and Chemical Engineering Yantai University Yantai Shandong 264005 China
Abstract
AbstractWith the emergence of various hydrogels with excellent functions, the air‐drying of hydrogels has attracted extensive attention. Improving the water retention capacity is critical in the application of hydrogels. Herein, inspired by the dense aggregation structure of natural hydrophilic macromolecules, hydrophilic substances (gelatin and glycerol) are first applied to enhance the water retention capacity of hydrogels by constructing a quenched double‐hydrophilic coating. The weight retention ratio of the modified hydrogels is increased to 72.5% at 25 °C and 40 RH% after 5 days. Furthermore, the construction of hydrophilic coating on the surface does not affect the mechanical properties, and the modified hydrogels still retain strong water retention capacity after loading. In addition, this approach is applicable to hydrogels with different shapes and types, and various materials can be selected. Therefore, the proposed method provides new insights for expanding the application scope and service life of hydrogels.
Funder
National Natural Science Foundation of China
Subject
Electrochemistry,Condensed Matter Physics,Biomaterials,Electronic, Optical and Magnetic Materials
Cited by
1 articles.
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