Smart Cellulose‑Based Janus Fabrics with Switchable Liquid Transportation for Personal Moisture and Thermal Management  

作　　者：Jianfeng Xi Yanling Lou Liucheng Meng Chao Deng Youlu Chu Zhaoyang Xu Huining Xiao Weibing Wu 

机构地区：[1]Jiangsu Co‑Innovation Center of Efficient Processing and Utilization of Forest Resources,International Innovation Center for Forest Chemicals and Materials,Jiangsu Provincial Key Lab of Sustainable Pulp and Paper Technology and Biomass Materials,Nanjing Forestry University,Nanjing 210037,People’s Republic of China [2]College of Materials Science and Engineering,Nanjing Forestry University,Nanjing 210037,People’s Republic of China [3]Department of Chemical Engineering,University of New Brunswick,Fredericton,NB E3B 5A3,Canada [4]Macromolecular Chemistry and Bavarian Polymer Institute,University of Bayreuth,Bayreuth 95440,Germany

出　　处：《Nano-Micro Letters》2025年第1期333-347,共15页纳微快报（英文版）

基　　金：support of this work by National Key Research and Development Program of China(2019YFC19059003);the Natural Science Foundation of the Jiangsu Higher Education Institutions of China(23KJB430024);Jiangsu Funding Program for Excellent Postdoctoral Talent(2023ZB680);Priority Academic Program Development of Jiangsu Higher Education Institutions(PAPD)are gratefully acknowledged.

摘　　要：The Janus fabrics designed for personal moisture/thermal regulation have garnered significant attention for their potential to enhance human comfort.However,the development of smart and dynamic fabrics capable of managing personal moisture/thermal comfort in response to changing external environments remains a challenge.Herein,a smart cellulose-based Janus fabric was designed to dynamically manage personal moisture/heat.The cotton fabric was grafted with N-isopropylacrylamide to construct a temperature-stimulated transport channel.Subsequently,hydrophobic ethyl cellulose and hydrophilic cellulose nanofiber were sprayed on the bottom and top sides of the fabric to obtain wettability gradient.The fabric exhibits anti-gravity directional liquid transportation from hydrophobic side to hydrophilic side,and can dynamically and continuously control the transportation time in a wide range of 3–66 s as the temperature increases from 10 to 40℃.This smart fabric can quickly dissipate heat at high temperatures,while at low temperatures,it can slow down the heat dissipation rate and prevent the human from becoming too cold.In addition,the fabric has UV shielding and photodynamic antibacterial properties through depositing graphitic carbon nitride nanosheets on the hydrophilic side.This smart fabric offers an innovative approach to maximizing personal comfort in environments with significant temperature variations.

关 键 词：Directional water transport Cotton fabric Anti-gravity directional liquid transportation Janus wettability 

分 类 号：TS106[轻工技术与工程—纺织工程]