A High Stretchable and Self–Healing Silicone Rubber with Double Reversible Bonds,ChemistrySelect

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A High Stretchable and Self–Healing Silicone Rubber with Double Reversible Bonds
ChemistrySelect ( IF 1.9 ) Pub Date : 2019-09-24 , DOI: 10.1002/slct.201902244
Hao Yan ₁ , Shengping Dai ₂ , Yuewen Chen ₁ , Jianning Ding _{1,

2} , Ningyi Yuan ₁

Affiliation

It is a challenge to synthesize silicone rubber with high stretchability and rapid self–healing ability without external stimuli. This article reports on a new class of self–healing poly(dimethylsiloxane)(PDMS) elastomer fabricated by introducing double reversible bonds (imine and hydrogen bonds) into silicone chains. Through reasonable structural design, the silicone rubber with high‐efficiency self‐healing ability was produced. The as–prepared PDMS elastomer films exhibited high stretchability (>4000%), good transparency (>80%) and fast self–healing efficiency (3 h at room temperature a healing efficiency of 93%). It could also be healed at low temperature (‐20 °C) and processed cyclically. In addition, we combined carbon nanotube films with this elastomer to prepare a flexible and stretchable capacitive sensor through a simple process.

中文翻译：

具有双可逆键的高拉伸性和自愈性硅橡胶

如何在没有外界刺激的情况下合成具有高拉伸性和快速自我修复能力的硅橡胶是一项挑战。本文报道了通过将双可逆键（亚胺和氢键）引入有机硅链中制成的新型自修复聚（二甲基硅氧烷）（PDMS）弹性体。通过合理的结构设计，生产出具有高效自我修复能力的硅橡胶。所制备的PDMS弹性体薄膜表现出高拉伸性（> 4000％），良好的透明性（> 80％）和快速的自修复效率（在室温下3小时，修复效率为93％）。它也可以在低温（-20°C）下进行修复并循环处理。此外，我们将碳纳米管薄膜与这种弹性体结合在一起，通过一个简单的过程即可制备出可弯曲且可拉伸的电容式传感器。

更新日期：2019-09-24

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