纳米纤维素-可聚合低共熔溶剂离子导电弹性体的制备及性能研究  

Study on Preparation and Properties of Nanocellulose-Polymerizable Deep Eutectic Solvents Ionic Conductive Elastomer

作　　者：宁晨汐 张潇[1,2] 江闯 刘苇[1,2] 孙浩轩 侯庆喜[1,2] NING Chenxi;ZHANG Xiao;JIANG Chuang;LIU Wei;SUN Haoxuan;HOU Qingxi(School of Light Industry Science and Engineering,Tianjin University of Science and Technology,Tianjin,300457;State Key Lab of Biobased Fiber Manufacturing Technology,Tianjin University of Science and Technology,Tianjin,300457)

机构地区：[1]天津科技大学轻工科学与工程学院,天津300457 [2]天津科技大学生物源纤维制造技术国家重点实验室,天津300457

出　　处：《中国造纸》2023年第5期43-49,共7页China Pulp & Paper

基　　金：国家自然科学基金项目(32071715)。

摘　　要：本研究采用紫外光引发原位聚合法将丙烯酸-氯化胆碱合成的可聚合低共熔溶剂(polymerizable deep eutectic solvents,PDES)与纤维素纳米纤丝(cellulose nanofibril,CNF)气凝胶结合,并引入植酸以增强CNF与PDES之间的结合作用,制得含有丰富的共价键和非共价键(氢键)的离子导电弹性体,通过多种现代仪器分析测试其性能。结果表明,该离子导电弹性体在机械性能(应力和应变分别可达0.38 MPa和1378%)、热稳定性、抗冻性、离子电导性(离子电导率可达3.9 mS/m)和紫外屏蔽性方面具有明显优势,同时具有一定的抗疲劳性和弹性,且基于其组装的柔性应变传感器对人体运动表现出快速、稳定、可逆的信号响应。In this study,polymerizable deep eutectic solvents(PDES)synthesized from acrylic acid and choline chloride was combined with cellulose nanofibril(CNF)aerogels by UV-initiated in situ polymerization,and phytic acid was introduced to enhance the bonding between CNF and PDES.The ionic conductive elastomers containing abundant covalent bonds and non-covalent bonds(hydrogen bonds)were prepared,and their properties were tested by a variety of modern instruments.The results showed that the ionic conductive elastomers had obvious advantages in mechanical properties(stress of 0.38 MPa and strain of 1378%),thermal stability,frost resistance,ionic conductivity(ionic conductivity up to 3.9 mS/cm)and UV shielding,and had certain fatigue resistance and elasticity.And the flexible strain sensor based on the assembly showed rapid,stable and reversible signal responsed to human movement.

关 键 词：离子导电弹性体 可聚合低共熔溶剂 纤维素纳米纤丝 植酸 

分 类 号：TS72[轻工技术与工程—制浆造纸工程]