茶多酚改性纳米纤维素气凝胶的制备及性能研究  

Preparation and Properties of Tea Polyphenol-modified Nanocellulose Aerogels

作　　者：陈家壮 许磊[2] 邢铁玲[1] CHEN Jia-zhuang;XU Lei;XING Tie-ling(College of Textile and Clothing Engineering,Soochow University,Suzhou 215021;Suzhou Institute of Trade and Commerce,Suzhou 215009)

机构地区：[1]苏州大学纺织与服装工程学院,江苏苏州215021 [2]苏州经贸职业技术学院,江苏苏州215009

出　　处：《纺织科学与工程学报》2025年第1期43-47,共5页Journal of Textile Science and Engineering

基　　金：国家自然科学基金项目(52211530485,51973144)。

摘　　要：随着生活水平的提高和科技的进步,应用于智能穿戴的柔性压阻式传感器受到许多人的关注。通过茶多酚和FeCl_(3)对纳米纤维素进行改性,添加多壁碳纳米管赋予导电性,用冷冻干燥法成功制备了茶多酚/纳米纤维素(TP/CNF)气凝胶。TP/CNF具有良好的耐压缩性和弹性,最大耐压缩应力为465.4 KPa,相较于改性前提高了4倍,弹性回复率由几乎没有提升至75%,在循环压缩中可以表现出重复的电信号,具有作为柔性传感器的潜力。With the improvement of living standards and the advance of technology,flexible piezoresistive sensors applied to smart wear have received much attention.In this paper,nanocellulose was modified by tea polyphenol and FeCl_(3),multi-walled carbon nanotubes were added to confer electrical conductivity,and tea poly-phenol/nanocellulose(TP/CNF)aerogel was successfully prepared by freeze-drying method.TP/CNF had good compression resistance and elasticity with the maximum compression stress of 465.4 KPa,which was a 4-fold in-crease compared with that before modification.And elasticity recovery was improved from almost nothing to 75%,which could exhibit repetitive electrical signals in cyclic compression and had the potential to be used as a flexible sensor.

关 键 词：纳米纤维素 茶多酚 多壁碳纳米管 柔性传感器 

分 类 号：TQ427.26[化学工程]