保湿抗冻型导电水凝胶在柔性电子方面的研究进展

Research progress on moisturizing and anti-freezing conductive hydrogels in flexible electronics

  • 摘要: 近年来,柔性电子材料得到了快速的发展,其中导电水凝胶由于其突出的导电性、柔韧性、亲肤性等已被广泛的应用于该领域。然而,类似于传统的水凝胶,大多数导电水凝胶在极端环境下仍面临应用受限的瓶颈问题。因此,许多学者对水凝胶的保湿/抗冻行为进行了研究,并设计制备了一系列保湿抗冻导电水凝胶。本文对近年来保湿抗冻导电水凝胶的制备策略进行了总结及归类,详细阐述其提升水凝胶温度适应性的潜在机制;重点对耐候型水凝胶在柔性电子领域的应用进行了综述,包括运动感知、健康监测、智能识别与人机交互等;并且对保湿抗冻导电水凝胶面临的机遇和挑战进行了探讨和展望,旨在为新型保湿抗冻导电水凝胶的构筑提供新的思路,可望开发出综合性能优异的导电水凝胶,进一步推动其在柔性电子领域中的实际应用。

     

    Abstract: Conductive hydrogel is one novel flexible material with outstanding conductivity, flexibility and skin-friendliness, which has made great progress in flexible electronics recently. However, similar to traditional hydrogels, the applications of conductive hydrogels in extreme environments still face limitations. To extend the operational temperature range of hydrogels, some researchers have paid attention to the dehydration/freezing behavior of hydrogels, resulting in the successful design and fabrication of a series of hydrogels with moisturizing and anti-freezing properties. In this review, the strategies for improving the temperature tolerance of hydrogels are summarized, and the potential mechanisms of moisturizing and anti-freezing hydrogels are described in detail. Furthermore, the applications of environmentally stable hydrogels in the field of flexible electronics are discussed, including motion perception, health monitoring, intelligent recognition and human-computer interaction. Additionally, the opportunities and challenges faced by the moisturizing and anti-freezing hydrogels are deliberated, with the objective of stimulating innovative approaches towards weather-resistant hydrogel development. By advancing the development of modern hydrogels with excellent comprehensive performance, the aim is to facilitate their broader practical application in extreme environments.

     

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