纤维素及其衍生物是一大类可再生天然高分子材料，具有资源丰富、种类繁多、价格便宜、无毒以及良好的生物降解性和可再生性等特点。因此，纤维素的研究已成为全球可持续发展的主要课题之一。简要介绍了纤维素的结构与性质，并重点阐述了纤维素纤维、纤维素膜、纤维素水凝胶、纤维素气凝胶、纳米纤维素等的应用，同时就充分、高效利用纤维素对经济发展和社会进步将起到的作用做出展望。
Cellulose and its derivatives,as the most abundant natural polymer on the earth,has attracted wide attention due to its renewability,wide availability,low-cost,biocompatibility and biodegradability,etc.Therefore, the research of cellulose and its derivatives in global sustainable development is becoming more and more popular at home and abroad.In this paper,the structure and properties of cellulose are briefly introduced,and the applications of cellulose and its derivatives including cellulose fiber,cellulose film,cellulose hydrogel,cellulose aerogel and nanocrys-talline cellulose in various fields are summarized.In addition,the contribution of cellulose application to the economic and social development is predicted.
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