Highly Efficient and Water‐Insensitive Self‐Healing Elastomer for Wet and Underwater Electronics,Advanced Functional Materials

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Highly Efficient and Water‐Insensitive Self‐Healing Elastomer for Wet and Underwater Electronics
Advanced Functional Materials ( IF 18.5 ) Pub Date : 2020-04-06 , DOI: 10.1002/adfm.201910196
Muhammad Khatib ₁ , Orr Zohar ₁ , Walaa Saliba ₁ , Simcha Srebnik ₁ , Hossam Haick _{1,

2}

Affiliation

Integrating self‐healing capabilities into soft electronic devices increases their durability and long‐term reliability. Although some advances have been made, the use of self‐healing electronics in wet and/or (under)water environments has proven to be quite challenging, and has not yet been fully realized. Herein, a new highly water insensitive self‐healing elastomer with high stretchability and mechanical strength that can reach 1100% and ≈6.5 MPa, respectively, is reported. The elastomer exhibits a high (>80%) self‐healing efficiency (after ≈ 24 h) in high humidity and/or different (under)water conditions without the assistance of an external physical and/or chemical triggers. Soft electronic devices made from this elastomer are shown to be highly robust and able to recover their electrical properties after damages in both ambient and aqueous conditions. Moreover, once operated in extreme wet or underwater conditions (e.g., salty sea water), the self‐healing capability leads to the elimination of significant electrical leakage that would be caused by structural damages. This highly efficient self‐healing elastomer can help extend the use of soft electronics outside of the laboratory and allow a wide variety of wet and submarine applications.

中文翻译：

高效和水不敏感的自修复弹性体，适用于湿式和水下电子设备

将自我修复功能集成到软电子设备中可提高其耐用性和长期可靠性。尽管已经取得了一些进步，但事实证明，在潮湿和/或水下环境中使用自愈电子器件具有很大的挑战性，并且尚未完全实现。本文报道了一种新型的高水不敏感性自修复弹性体，其高拉伸性和机械强度分别可以达到1100％和≈6.5MPa。在高湿和/或不同（水下）条件下，该弹性体在没有外部物理和/或化学触发的帮助下，表现出很高的自愈效率（≥24小时）。由这种弹性体制成的软电子设备显示出高度坚固的性能，并且在环境和水性条件下均能在损坏后恢复其电性能。此外，一旦在极端潮湿或水下条件（例如咸海水）下运行，自愈功能将消除由于结构损坏而引起的大量漏电。这种高效的自修复弹性体可以帮助在实验室外扩展软电子设备的使用范围，并可以用于各种湿式和潜艇应用。

更新日期：2020-04-06

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