The quest for autonomous, self-healing electronic skins in artificial soft robots has sparked considerable interest. However, restoring the primary structure and integrated skin sensors of these robots to their original state after damage presents significant challenges for achieving a swift and straightforward healing process. Herein, we introduce an enhanced polymer known as maltose polyborosiloxane (PM PBS), designed as an exceptional skin substrate. Engineered with unique properties, PM PBS demonstrates remarkable self-healing capabilities. Notably, it achieves a maximum strain at break exceeding 3000% and exhibits swift self-healing, fully recovering within a mere 10 s under ambient conditions and 3 min under both frozen (−20 °C) and underwater conditions. Additionally, our study highlights that the integrated PM PBS electronic adhesive can self-heal within 20 s underwater. Furthermore, we showcase the versatility of self-healing PM PBS when combined with Ecoflex (denoted as PME), successfully integrating it into piezoelectronic sensors and soft pneumatic grippers featuring in situ capacitive tactile sensing. This multifunctionality aligns with the development of composite materials possessing self-healing, stretchable, and deformable properties. Noteworthy is the rapid response to self-healing exhibited by our PME robotic grippers, enabling recovery from damage in less than 1 min. In summary, the impressive combination of stretchability, rapid self-healing, and multifunctionality inherent in PM PBS positions it as a promising candidate for a diverse range of applications in soft robots, wearable technology, and beyond.

中文翻译：

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用于改善软电子和软机器人的自主自愈和高拉伸聚合物麦芽糖聚硼硅氧烷

对人造软机器人自主、自愈电子皮肤的探索引起了人们的极大兴趣。然而，在损坏后将这些机器人的主要结构和集成皮肤传感器恢复到原始状态对于实现快速而直接的愈合过程提出了重大挑战。在此，我们推出一种称为麦芽糖聚硼硅氧烷 (PM PBS) 的增强聚合物，旨在作为特殊的皮肤基质。 PM PBS 具有独特的性能，表现出卓越的自愈能力。值得注意的是，它的最大断裂应变超过 3000%，并表现出快速的自愈能力，在环境条件下仅需 10 秒即可完全恢复，在冷冻 (-20 °C) 和水下条件下仅需 3 分钟即可完全恢复。此外，我们的研究强调，集成 PM PBS 电子粘合剂可以在水下 20 秒内自愈。此外，我们展示了自愈 PM PBS 与 Ecoflex（表示为 PME）结合使用时的多功能性，成功地将其集成到压电传感器和具有原位电容触觉传感功能的软气动夹具中。这种多功能性与具有自修复、可拉伸和可变形特性的复合材料的发展相一致。值得注意的是我们的 PME 机器人夹具表现出对自我修复的快速响应，能够在不到 1 分钟的时间内从损坏中恢复。总之，PM PBS 令人印象深刻的可拉伸性、快速自愈性和多功能性的结合使其成为软机器人、可穿戴技术等领域各种应用的有前途的候选者。