Enhanced electromechanical performance of Nafion actuator doped by poly(ethylene glycol)-grafted graphene oxide

IF 2.9 4区化学 Q2 POLYMER SCIENCE

Polymer International Pub Date : 2024-07-10 DOI:10.1002/pi.6674

Li Ma, Xiaowei Guo, Longxiang Mei, Lehui Wang, Yanghai Gui, Dongjie Guo

引用次数: 0

Abstract

Current ionic polymer–metal composite (IPMC) actuators have severe actuation drawbacks (i.e. low force output and poor stability), hampering their applications. To address these issues, poly(ethylene glycol)-grafted graphene oxide (PEG-GO) is synthesized and incorporated into a Nafion matrix, thus producing a PEG-GO hybrid Nafion film with better physiochemical properties for fabricating a high-performance, low-cost IPMC actuator. The modification of PEG to GO not only prevents GO agglomeration and sedimentation, but also avoids loss of PEG in water. Driven by a 0.2 Hz, 2.5 V electric field, the hybrid IPMC actuator exhibits superior electromechanical behaviors, i.e. a swing angle of 110.3°, a blocking force of 6.89 mN and a stable working time of 485 s, respectively increasing by 92%, 209% and 294% when compared to a pure Nafion actuator. © 2024 Society of Chemical Industry.

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掺杂聚乙二醇接枝氧化石墨烯的 Nafion 致动器的机电性能得到增强

目前的离子聚合物-金属复合材料（IPMC）致动器存在严重的致动缺陷（即力输出低和稳定性差），阻碍了其应用。为了解决这些问题，我们合成了聚乙二醇接枝氧化石墨烯（PEG-GO），并将其加入到 Nafion 基质中，从而产生了具有更好理化特性的 PEG-GO 混合 Nafion 薄膜，用于制造高性能、低成本的 IPMC 激励器。将 PEG 改性为 GO 不仅可以防止 GO 聚结和沉淀，还能避免 PEG 在水中流失。在 0.2 Hz、2.5 V 的电场驱动下，混合 IPMC 执行器表现出卓越的机电性能，与纯 Nafion 执行器相比，摆动角度为 110.3°，阻挡力为 6.89 mN，稳定工作时间为 485 s，分别增加了 92%、209% 和 294%。© 2024 化学工业协会。

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来源期刊

Polymer International 化学-高分子科学

CiteScore

7.10

自引率

3.10%

发文量

135

审稿时长

4.3 months

期刊介绍： Polymer International (PI) publishes the most significant advances in macromolecular science and technology. PI especially welcomes research papers that address applications that fall within the broad headings Energy and Electronics, Biomedical Studies, and Water, Environment and Sustainability. The Journal’s editors have identified these as the major challenges facing polymer scientists worldwide. The Journal also publishes invited Review, Mini-review and Perspective papers that address these challenges and others that may be of growing or future relevance to polymer scientists and engineers.