纤维素离子凝胶的制备及性能

陈裙凤; 刘茜; 杨嘉玮; 陶涛; 陈礼辉; 倪永浩; 李建国

doi:10.13801/j.cnki.fhclxb.20210303.002

纤维素离子凝胶的制备及性能

doi: 10.13801/j.cnki.fhclxb.20210303.002

陈裙凤^{1, 2,},
刘茜^{1, 2,},
杨嘉玮^{1, 2, ,},
陶涛^{1, 2,},
陈礼辉^{1, 2,},
倪永浩^{1, 2},
李建国^{1, 2, ,}

1.
福建农林大学　材料工程学院，福州 350108
2.
植物纤维功能材料国家林业和草原局重点实验室，福州 350108

基金项目: 国家自然科学基金(31700520，31971612)；国家重点研发计划(2017YFB0307900)；福建农林大学杰出青年科研人才计划(xjq201729)；福建省自然科学基金(2018J05040)

详细信息

通讯作者:
杨嘉玮，硕士，研究员助理，研究方向为高性能纤维素纤维制备及其应用　 E-mail: jiaweiyang0210@163.com

李建国，博士，副教授，硕士生导师，研究方向为高性能纤维素纤维制备及其应用　 E-mail: jianguolicn@fafu.edu.cn

中图分类号: TN03；TS721；O636.9
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- 被引次数: 0
出版历程
- 收稿日期: 2020-12-09
- 录用日期: 2021-02-23
- 网络出版日期: 2021-03-03
- 刊出日期: 2021-12-01

Preparation and properties of cellulose ionic gel

CHEN Qunfeng^{1, 2
,},
LIU Xi^{1, 2
,},
YANG Jiawei^{1, 2
, ,},
TAO Tao^{1, 2
,},
CHEN Lihui^{1, 2
,},
NI Yonghao^{1, 2},
LI Jianguo^{1, 2
, ,}

1.
College of Material Engineering, Fujian Agriculture and Forestry University, Fuzhou 350108, China
2.
National Forestry & Grassland Administration Key Laboratory for Plant Fiber Functional Materials, Fuzhou 350108, China

摘要

摘要: 开发高性能的导电凝胶已经成为推动柔性电子设备进一步发展的基石。以天然纤维素为凝胶骨架，以离子液体为导电介质，通过加热溶解-冷却凝胶化过程可以制备高性能的绿色离子液体-纤维素复合凝胶(CGel)。复合凝胶中的纤维素基体呈现三维网络结构，并包含大量的孔洞，可以有效吸附和储存离子液体，实现离子液体在纤维素基体中的均匀分布。纤维素离子复合凝胶具有较高的模量(G′>G″)、优异的透明度(88%)、良好的电学性能(2.2 mS/cm)及柔韧性。进一步通过高温加热-冷却凝胶化过程能够实现纤维素离子凝胶体系的再循环生产过程。纤维素离子凝胶展现了对水分子的高度敏感性，其电导率正比于工作湿度，有望应用于环境湿度及人体皮肤状况的高效监督检测。
- 导电凝胶 /
- 纤维素 /
- 离子液体 /
- 氢键 /
- 环境友好
Abstract: The development of high-performance ionic gel can significantly promote the flexible electronic devices. In this study, an environmentally friendly cellulose-based ionic gel (CGel) had been designed based on the heating-cooling process, where the natural cellulose functioned as the gel framework, and the ionic liquid worked as the conductive material. In the CGel, the cellulose possesses a 3D porous structure, which can effectively adsorb and reserve the ionic liquid. The CGel presents high modules (G′>G″), superior transparency of 88% and conductivity of 2.2 mS/cm, as well as desirable flexibility. In addition, the CGel system features a recycled and reproductive character based on a hot-temperature heating and cooling gelation process. More interestingly, the cellulose-based gel is extremely sensitive to the water molecules, where the conductivity of the CGel features a positive relationship with the humidity, leading to a promising potential for real-time monitoring the environmental humidity and human skin conditions.
- conductive gels /
- cellulose /
- ionic liquids /
- hydrogen bonding /
- environmentally friendly

HTML全文

图 1 纤维素离子凝胶(CGel)的制备(纤维素浓度：5%)

Figure 1. Preparation of cellulose-based ionic gel (CGel) (Cellulose concentration: 5%)

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图 2 CGel的柔韧性(纤维素浓度：5%)

Figure 2. Flexibility of CGel (Cellulose concentration: 5%)

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图 3 CGel的流变性能(纤维素浓度：5%)

Figure 3. Rheological property of CGel (Cellulose concentration: 5%)

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图 4 CGel的SEM图像(纤维素浓度：5%)

Figure 4. SEM images of CGel (Cellulose concentration: 5%)

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图 5 CGel的光学性能

Figure 5. Optical performance of CGel

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图 6 CGel的导电性

Figure 6. Ionic conductivity of CGel

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图 7 工作时间对CGel性能的影响(纤维素浓度：5%)

Figure 7. Effect of working time on the performance of CGel (Cellulose concentration: 5%)

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图 8 工作湿度对CGel性能的影响(纤维素浓度：5%)

Figure 8. Effect of working humidity on the performance of CGel (Cellulose concentration: 5%)

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图 9 CGel的可循环性能(纤维素浓度：5%)

Figure 9. Reproductivity of CGel (Cellulose concentration: 5%)

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