Abstract: Due to serious environmental pollution and resource shortage，cellulose acetate (CA)，as one of the important derivatives of cellulose with excellent processability and biodegradable performance has attracted much attention. In this paper，the applications of CA in textile，cigarette filters and membrane are introduced，and the problems of CA application are analyzed. The research progress of modified CA by different methods，such as blending nano and nano-composite technology and surface modification，are summarized. Development of an industrial modification method and preparation of renewable biodegradable materials should be the focus in the development of cellulose acetate modification.

Key words: cellulose acetate, application, modification, blending, nanotechnology, surface

摘要： 随着污染问题及资源短缺问题的日益严重，乙酸纤维素作为纤维素的重要衍生物之一，具有良好的加工性能及可生物降解性能，近年来一直备受关注。本文系统介绍了乙酸纤维素在服装纺织、烟用滤嘴及膜材料等方面的应用，分析了目前乙酸纤维素应用中存在的问题。同时从共混改性、纳米及纳米复合改性、表面改性等方面对乙酸纤维素的改性技术的研究进展进行了综述，最后展望了乙酸纤维素的发展前景，指出开发简单易行能够工业化的改性技术及制备出可再生的生物降解材料研究是乙酸纤维素改性今后的主要发展方向。

关键词: 乙酸纤维素, 应用, 改性, 共混, 纳米技术, 表面