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Research Progress on Preparation and Properties of Cellulose Nanocrystals Based Photonic Crystal Thin Film Materials
Received:April 02, 2024  
DOI：10.11980/j.issn.0254-508X.2024.09.002
Key Words:cellulose nanocrystals  evaporation induced self-assembly  photonic crystal film  functional materials
Author NameAffiliationPostcode
ZONG Guanglong Zhejiang University of Science and Technology， Hangzhou， Zhejiang Province， 310012 310012
CHENG Zhengbai Zhejiang Jingxing Paper Industry Co.， Ltd.，Jiaxing，Zhejiang Province，314214 314214
MENG Yahui Zhejiang University of Science and Technology， Hangzhou， Zhejiang Province， 310012 310012
ZHAO Huifang Zhejiang University of Science and Technology， Hangzhou， Zhejiang Province， 310012 310012
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Abstract:Cellulose nanocrystals （CNC） is a type of nanoscale cellulose extracted from natural fibers， and can form thin film materials with chiral nematic structures and bright colors through the method of evaporation induced self-assembly （EISA）， which can provide rich and intuitive visual information， making it the preferred for the new generation of photonic liquid crystal materials. However， CNC-based photonic materials currently suffer from issues such as poor mechanical properties and dynamic optical response， making it difficult to achieve their functional expansion. Therefore， the additives are usually added to improve the flexibility and adaptability of CNC. Hence， this review aimed to systematically elaborate on the current preparation processes and influencing factors of photonic crystal thin films by combining CNC’s characteristics and summarized different controllable preparation schemes， including mechanical strength， color responsiveness， etc. Meanwhile， it also emphasized the potential applications and development trends of CNC-based photonic materials in different fields.
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