Bari Gazi A K M Rafiqul, Jeong Jae-Ho, Barai Hasi Rani
School of Mechanical Smart and Industrial Engineering, Gachon University, 1342 Seongnam-daero, Sujeong-gu, Seongnam-si 13120, Gyeonggi-do, Republic of Korea.
School of Mechanical and IT Engineering, Yeungnam University, Gyeongsan 38541, Gyeongbuk, Republic of Korea.
Materials (Basel). 2024 May 11;17(10):2268. doi: 10.3390/ma17102268.
Gel-based materials have garnered significant interest in recent years, primarily due to their remarkable structural flexibility, ease of modulation, and cost-effective synthesis methodologies. Specifically, polymer-based conductive gels, characterized by their unique conjugated structures incorporating both localized sigma and pi bonds, have emerged as materials of choice for a wide range of applications. These gels demonstrate an exceptional integration of solid and liquid phases within a three-dimensional matrix, further enhanced by the incorporation of conductive nanofillers. This unique composition endows them with a versatility that finds application across a diverse array of fields, including wearable energy devices, health monitoring systems, robotics, and devices designed for interactive human-body integration. The multifunctional nature of gel materials is evidenced by their inherent stretchability, self-healing capabilities, and conductivity (both ionic and electrical), alongside their multidimensional properties. However, the integration of these multidimensional properties into a single gel material, tailored to meet specific mechanical and chemical requirements across various applications, presents a significant challenge. This review aims to shed light on the current advancements in gel materials, with a particular focus on their application in various devices. Additionally, it critically assesses the limitations inherent in current material design strategies and proposes potential avenues for future research, particularly in the realm of conductive gels for energy applications.
近年来,基于凝胶的材料引起了广泛关注,主要是因为它们具有出色的结构灵活性、易于调制以及经济高效的合成方法。具体而言,基于聚合物的导电凝胶,其独特的共轭结构包含局部的σ键和π键,已成为众多应用的首选材料。这些凝胶在三维基质中展现出固液相的出色整合,通过加入导电纳米填料进一步增强。这种独特的组成赋予它们多功能性,可应用于包括可穿戴能量设备、健康监测系统、机器人技术以及为交互式人体集成设计的设备等各种领域。凝胶材料的多功能性体现在其固有的拉伸性、自愈能力、导电性(离子导电性和电子导电性)以及多维特性上。然而,将这些多维特性整合到单一凝胶材料中,以满足各种应用中特定的机械和化学要求,是一项重大挑战。本综述旨在阐明凝胶材料的当前进展,特别关注其在各种设备中的应用。此外,它批判性地评估了当前材料设计策略中固有的局限性,并提出了未来研究的潜在途径,特别是在用于能量应用的导电凝胶领域。