摘要
为解决纤维素摩擦电材料表面电荷受潮耗散、传感灵敏度不足等问题,本研究通过甲基硅烷化学改性赋予纤维素疏水性能,结合激光刻蚀定制具有微结构的模具,制备了一种高抗湿、快速响应的纤维素摩擦电材料。通过研究空气湿度对材料摩擦电性能的影响规律,结合表面润湿性和结构吸湿性分析,探究了纤维素摩擦电材料的抗湿机理。结果表明,制备的纤维素摩擦电材料在高湿度环境(相对湿度99%)下仍可保持73.6%的输出性能,是纤维素膜(30.3%)的2.4倍;表面微结构还赋予纤维素摩擦电材料优异的应力响应性能,其响应时间仅为76 ms,并具有0.120 V/kPa的传感灵敏度。
To address the issues of surface charge dissipation under humid conditions and insufficient sensing sensitivity in cellulose-based materials,a hydrophobic cellulose triboelectric material with high moisture resistance and fast responsiveness was developed.This material was prepared through chemical modification with methylsilane to impart hydrophobicity,combined with laser-etched molds designed to create microstructures on the material surface.By investigating the effects of ambient humidity on the triboelectric properties of cellulose materials and analyzing their surface wettability and structural hygroscopicity,the moisture resistance mechanism of the cellulose triboelectric materials was elucidated.The results revealed that the hydrophobic cellulose triboelectric materials retained 73.6%of their output performance even under an extremely humidity conditions of 99%relative humidity,which was 2.4 times that of cellulose film(30.3%).Furthermore,the microstructured surface endowed the cellulose triboelectric material with outstanding stress-responsive behavior,exhibiting a rapid response time of only 76 ms and a sensing sensitivity of 0.120 V/kPa.
作者
刘涛
何焕杰
尹鸿翔
黄佩晶
梁容榕
李雪迪
王双飞
聂双喜
LIU Tao;HE Huanjie;YIN Hongxiang;HUANG Peijing;LIANG Rongrong;LI Xuedi;WANG Shuangfei;NIE Shuangxi(School of Light Industry and Food Engineering,Guangxi Key Lab of Clean Pulp&Papermaking and Pollution Control,Guangxi University,Nanning,Guangxi Zhuang Autonomous Region,530004;Guangxi Bossco Environmental Protection Technology Co.,Ltd.,Nanning,Guangxi Zhuang Autonomous Region,537003;Guangxi Fangbo Technology Service Co.,Ltd.,Nanning,Guangxi Zhuang Autonomous Region,530022)
出处
《中国造纸学报》
北大核心
2025年第4期76-82,共7页
Transactions of China Pulp and Paper
基金
南宁市科技重大专项(20251015)
广西研究生教育创新计划资助项目(YCBZ2024056)。
关键词
纤维素
摩擦电材料
摩擦纳米发电机
传感器
cellulose
triboelectric material
triboelectric nanogenerator
sensor
