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Research Advances in the Preparation of Nanocellulose and Its Applications in the Field of Hydrogels |
Received:August 23, 2021 |
DOI:10.11980/j.issn.0254-508X.2021.11.013 |
Key Words:nanocellulose hydrogel composites preparation application |
Fund Project:广西壮族自治区科学技术厅重大专项计划(14122003-4)。 |
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Abstract:Nanocellulose-based hydrogels, a type of composite hydrogels which organically combine nanocellulose and polymer, have been proved to be functional polymer materials with plentiful application prospects because of their excellent water absorption, water retention, mechanical properties, biocompatibility, and biodegradability. In this review, the general synthetic strategies applied to prepare nanocellulose, including physical, chemical, biological, and hybrid methods, were briefly introduced. The common preparation methods of nanocellulose-based hydrogels, such as physical crosslinking and chemical crosslinking methods, were further discussed. In addition, the applications of nanocellulose-based hydrogels in food packaging, biomedicine, sewage treatment, and energy electronics were reviewed. Finally, by summarizing the existing research, the main problems affecting the development of nanocellulose-based hydrogels were discussed, and the research progress of nanocellulose-based hydrogels in terms of properties, modification methods, and application fields were prospected in order to provide reference for the rapid development of new nanocellulose-based hydrogels. |
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