纤维素纳米晶基导电复合材料的应用进展

Application Progress of Cellulose Nanocrystals-based Electroconductive Composites

纤维素纳米晶(CNC)是一种理想的纳米增强材料,同时具有可降解、可再生、较大的长径比、高比表面积等特点,在复合材料中可作为基质、模板、分散剂、增强体等,近年来与导电活性材料(导电聚合物、碳材料、金属氧化物等)形成的导电复合材料在电子及能量存储行业越来越引起人们的兴趣。本文首先介绍了酸水解及酶水解方法制备CNC的特点,在此基础上,总结了利用CNC特性与各类导电活性材料复合形成的导电复合材料在导电薄膜、超级电容器、传感器领域的研究进展,最后针对CNC应用于电子领域存在的问题提出了建设。

Cellulose nanocrystals(CNC)with characteristics of renewable,biodegradable,large aspect ratio and high specific surface area,has considered as an ideal nano-reinforcement material.With the development of conductive composites in the field of electronics and energy in recent years,CNC has been raised lots of interests in conductive composites with different conducting active material(conductive polymer and carbon material,metal oxide,etc.)to serve as matrix,templates,dispersant and reinforcing agents.In this paper,the characteristics of the preparation of CNC by acid hydrolysis and enzymatic hydrolysis are introduced.On this basis,the research progress of the CNC conductive composites made by the combination of CNC and various conductive active materials in the fields of conductive films,supercapacitors and sensors are summarized.Finally,the suggest of CNC in the field of electronics is proposed.