There is a growing interest in developing stretchable strain sensors to quantify the large mechanical deformation and strain associated with the activities for a wide range of species. Herein, we constructed elastomeric, healable hydrogen-bonded interpolymer complex (HIPC) rubberlike film by complexation of hydrogen-bond (H-bond)-donating poly(acrylic acid) (PAA) and H-bond-accepting poly(ethylene oxide) (PEO) (or poly(ethylene oxide)-poly(propylene oxide)-poly(ethylene oxide) (F108)). All HIPC elastomers prepared from varied PAA/PEO (or PAA/F108) ratios are healable elastomers with high extensibility (with the highest strain of 1400%). Recovery of all films can automatically occur or be accelerated by externally added water droplet. The stress- and strain healing efficiencies (ησ and ηε) of the water-assisting healed PAA/F108 blends are as high as 99%. Furthermore, stretchable and healable conductor films were fabricated from silver nanowire-printed (Ag-p) and the single-walled carbon nanotube-blended (SW-b) conductor films, respectively. The healable Ag-p conductor film is an ultrasensitive strain sensor, exhibiting large electric resistance variation when stretched. In contrast, the healable SW-b film is an ultrastable strain sensor with reversible resistance strain response over 200 stretching release cycles within a high strain range of 500%. Therefore, this study provides a new and flexible HIPC strategy for the fabrication of stretchable, ultrasensitive, and stable self-healing electrode materials.

中文翻译：

---

来自氢键互聚物复合物 (HIPC) 的高拉伸、可自修复弹性体及其作为敏感、稳定的电皮肤的用途。

人们越来越有兴趣开发可拉伸应变传感器来量化与多种物种活动相关的大机械变形和应变。在此，我们通过提供氢键（H-键）的聚（丙烯酸）（PAA）和接受氢键的聚（环氧乙烷）的络合构建了弹性体、可修复的氢键互聚物复合物（HIPC）橡胶状薄膜（ PEO）（或聚（环氧乙烷）-聚（环氧丙烷）-聚（环氧乙烷）（F108））。由不同PAA/PEO（或PAA/F108）比例制备的所有HIPC弹性体都是具有高延伸性（最高应变为1400%）的可愈合弹性体。所有薄膜的恢复可以自动发生或通过外部添加的水滴加速。水辅助愈合的 PAA/F108 共混物的应力和应变愈合效率（ησ 和 ηε）高达 99%。此外，可拉伸和可修复的导体薄膜分别由银纳米线印刷（Ag-p）和单壁碳纳米管混合（SW-b）导体薄膜制成。可修复的Ag-p导体薄膜是一种超灵敏应变传感器，在拉伸时表现出较大的电阻变化。相比之下，可修复的 SW-b 薄膜是一种超稳定应变传感器，在 500% 的高应变范围内，在 200 个拉伸释放周期内具有可逆电阻应变响应。因此，这项研究为制造可拉伸、超灵敏和稳定的自修复电极材料提供了一种新的、灵活的HIPC策略。