Multifunctional conductive composite hydrogel facilitated by high-functionality crosslinker strategy for strain sensing applications

IF 3.1 3区 化学 Q2 POLYMER SCIENCE
Xianglei Du, Kiran Shahzadi, Lai Wei, Tongfei Shi, Sajjad Haider, Salah Uddin Khan, Muhammad Faizan Nazar, Zaka Ullah
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引用次数: 0

Abstract

The inferior mechanical performance and low conductivity limit the applications of hydrogels particularly in flexible electronics and tissue engineering. In this study, a highly robust and conductive hydrogel is fabricated through unique strategy of high-functionality crosslinker. The reduced graphene oxide (RGO) and chitosan (CS) act as the high-functionality crosslinker and bridge the polymers without involving any organic crosslinker. Chitosan (CS) is added for the reduction of graphene oxide (GO), while the ionic liquid (IL) facilitates the dispersion of RGO. Compared to the conventional PAA and CS hydrogels that use organic crosslinkers, the as-prepared composite hydrogel exhibits a significantly improved tensile strength. Interestingly, this technique can be used for application of coating on cotton fabric to improve its characteristics. Moreover, the sensing ability of high-strength hydrogel was also evaluated for applied strain. Based on this strategy, the mechanical properties and conductivity of the gel can be decoupled and separately tuned. The fabrication method in this work is facile and cost-effective, broadening its application in producing robust deformable electronics on bulk scale.

多功能导电复合水凝胶的高功能交联策略促进应变传感应用
水凝胶的力学性能差,电导率低,限制了其在柔性电子和组织工程方面的应用。在本研究中,通过独特的高功能交联剂策略制备了高鲁棒性和导电性的水凝胶。还原氧化石墨烯(RGO)和壳聚糖(CS)作为高功能交联剂,在不涉及任何有机交联剂的情况下桥接聚合物。加入壳聚糖(CS)还原氧化石墨烯(GO),离子液体(IL)促进氧化石墨烯的分散。与使用有机交联剂的传统PAA和CS水凝胶相比,制备的复合水凝胶的抗拉强度显着提高。有趣的是,该技术可以应用于棉织物的涂层,以改善其性能。此外,还评价了高强水凝胶对外加应变的传感能力。基于这种策略,凝胶的机械性能和电导率可以解耦并单独调谐。本研究的制作方法简单,成本效益高,扩大了其在大规模生产坚固的可变形电子产品方面的应用。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Polymer Bulletin
Polymer Bulletin 化学-高分子科学
CiteScore
6.00
自引率
6.20%
发文量
0
审稿时长
5.5 months
期刊介绍: "Polymer Bulletin" is a comprehensive academic journal on polymer science founded in 1988. It was founded under the initiative of the late Mr. Wang Baoren, a famous Chinese chemist and educator. This journal is co-sponsored by the Chinese Chemical Society, the Institute of Chemistry, and the Chinese Academy of Sciences and is supervised by the China Association for Science and Technology. It is a core journal and is publicly distributed at home and abroad. "Polymer Bulletin" is a monthly magazine with multiple columns, including a project application guide, outlook, review, research papers, highlight reviews, polymer education and teaching, information sharing, interviews, polymer science popularization, etc. The journal is included in the CSCD Chinese Science Citation Database. It serves as the source journal for Chinese scientific and technological paper statistics and the source journal of Peking University's "Overview of Chinese Core Journals."
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