纤维素
纳米晶
材料科学
衍生工具(金融)
弯曲
复合材料
执行机构
水溶性
化学工程
高分子化学
高分子科学
纳米技术
化学
有机化学
计算机科学
经济
人工智能
工程类
金融经济学
作者
Daniela M. Correia,Erlantz Lizundia,Rafaela M. Meira,Mikel Rincón-Iglesias,S. Lanceros‐Méndez
出处
期刊:Materials
[MDPI AG]
日期:2020-05-15
卷期号:13 (10): 2294-2294
被引量:16
摘要
This study reports a versatile method for the development of cellulose nanocrystals (CNCs) and water-soluble cellulose derivatives (methyl cellulose (MC), hydroxypropyl cellulose (HPC), and sodium carboxymethyl cellulose (NaCMC)) films comprising the ionic liquid (IL) 2-hydroxy-ethyl-trimethylammonium dihydrogen phosphate ([Ch][DHP]) for actuator fabrication. The influence of the IL content on the morphology and physico–chemical properties of free-standing composite films was evaluated. Independently of the cellulose derivative, the ductility of the films increases upon [Ch][DHP] incorporation to yield elongation at break values of nearly 15%. An increase on the electrical conductivity as a result of the IL incorporation into cellulosic matrices is found. The actuator performance of composites was evaluated, NaCMC/[Ch][DHP] showing the maximum displacement along the x-axis of 9 mm at 8 Vpp. Based on the obtained high electromechanical actuation performance, together with their simple processability and renewable nature, the materials fabricated here represent a step forward in the development of sustainable soft actuators of high practical relevance.
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