基于离子液体协同法的双交联结构细菌纤维素/聚丙烯酰胺凝胶聚合物电解质构建

doi:10.13475/j.fzxb.20211001307

纺织学报 ›› 2022, Vol. 43 ›› Issue (11): 22-28.doi: 10.13475/j.fzxb.20211001307

基于离子液体协同法的双交联结构细菌纤维素/聚丙烯酰胺凝胶聚合物电解质构建

张天芸¹^,²(), 石小红¹, 张乐¹, 王富娟¹, 谢依娜¹, 杨亮¹, 冉奋²

1.兰州理工大学机电工程学院, 甘肃兰州 730050
2.兰州理工大学省部共建有色金属先进加工与可再生利用国家重点实验室, 甘肃兰州 730050

收稿日期:2021-10-08 修回日期:2022-01-19 出版日期:2022-11-15 发布日期:2022-12-26
作者简介:张天芸(1986—),女,博士。主要研究方向为天然纤维及能源材料的开发和功能纺织品的研究。E-mail: zhangtianyun@lut.edu.cn。
基金资助:
国家自然科学基金项目(51903113);博士后科学基金面上项目(2019M663858);博士后科学基金特别资助项目(2022T150282)

Bacterial cellulose/polyacrylamide hydrogel polymer electrolyte with dual-crosslinked network based on ionic liquid synergistic method

ZHANG Tianyun¹^,²(), SHI Xiaohong¹, ZHANG Le¹, WANG Fujuan¹, XIE Yi'na¹, YANG Liang¹, RAN Fen²

1. School of Mechanical and Electrical Engineering, Lanzhou University of Technology, Lanzhou, Gansu 730050, China
2. State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals, Lanzhou University of Technology, Lanzhou, Gansu 730050, China

Received:2021-10-08 Revised:2022-01-19 Published:2022-11-15 Online:2022-12-26

摘要/Abstract

摘要：

为实现凝胶电解质性能间的平衡,以氧化细菌纤维素为基体,分别采用3种阴离子类咪唑型离子液体与其实现离子交联,同时将丙烯酰胺在交联体中进行原位自由基聚合,制备细菌纤维素/聚丙烯酰胺双交联结构的凝胶聚合物电解质。其中阴离子类咪唑型离子液体分别是1-乙基-3-甲基咪唑四氟硼酸盐(EMIMBF₄)、1-乙基-3-甲基咪唑六氟磷酸盐(EMIMPF₆)和1-乙基-3-甲基咪唑双三氟甲磺酰亚胺盐(EMIMTFSI),在构筑双交联结构凝胶聚合物电解质中起到了关键的协同作用。结果表明:在以EMIMBF₄为协同剂时,制备的凝胶聚合物电解质具有最优的力学性能和离子电导率;断裂伸长率为38.36%,拉伸强度为175.25 kPa,离子电导率达到20.16 mS/cm。

关键词: 细菌纤维素, 聚丙烯酰胺, 离子液体, 凝胶电解质, 双交联网络, 化学储能器件

Abstract:

In order to achieve balance between different properties of the gel electrolyte, bacterial cellulose/polyacrylamide gel-polymer electrolyte with dual-crosslinked network was prepared by anionic imidazole-type ionic liquid and oxidized-bacterial cellulose, followed by crosslinking by acrylamide using in-situ free radical polymerization method. The anionic ionic liquids were 1-ethyl-3-methyl-imidazolium tetrafluoroborate (EMIMBF₄), 1-ethyl-3-methyl-imidazolium hexafluorophosphate (EMIMPF₆), and 1-ethyl-3-methyl-imidazolium bistrifluoromethosulfonimide (EMIMTFSI), respectively, which played important synergistic role in the construction of double crosslinked hydrogel polymer electrolyte. The results show that the gel polymer electrolyte based on EMIMBF₄ has excellent mechanical properties and ionic conductivity, with its elongation at break being 38.60%, its tensile strength 175.25 kPa, and its ionic conductivity reached 20.16 mS/cm.

Key words: bacterial cellulose, polyacrylamide, ionic liquid, hydrogel electrolyte, dual-crosslinked network, electrochemical energy storage devices

中图分类号:

TS102

张天芸, 石小红, 张乐, 王富娟, 谢依娜, 杨亮, 冉奋. 基于离子液体协同法的双交联结构细菌纤维素/聚丙烯酰胺凝胶聚合物电解质构建[J]. 纺织学报, 2022, 43(11): 22-28.

ZHANG Tianyun, SHI Xiaohong, ZHANG Le, WANG Fujuan, XIE Yi'na, YANG Liang, RAN Fen. Bacterial cellulose/polyacrylamide hydrogel polymer electrolyte with dual-crosslinked network based on ionic liquid synergistic method[J]. Journal of Textile Research, 2022, 43(11): 22-28.

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试样	吸液率	复吸率
TBC-PAM	274.95	76.67
TBC-B-PAM	324.51	52.46
TBC-P-PAM	308.16	75.70
TBC-T-PAM	262.15	76.95

基于离子液体协同法的双交联结构细菌纤维素/聚丙烯酰胺凝胶聚合物电解质构建

Bacterial cellulose/polyacrylamide hydrogel polymer electrolyte with dual-crosslinked network based on ionic liquid synergistic method

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