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Facile Construction of a Superhydrophobic Surface on a Textile with Excellent Electrical Conductivity and Stretchability
Industrial & Engineering Chemistry Research ( IF 4.2 ) Pub Date : 2020-03-24 , DOI: 10.1021/acs.iecr.9b06990
Li-Chuan Jia 1, 2 , Wen-Jin Sun 2 , Ling Xu 2 , Jie-Feng Gao 3 , Kun Dai 4 , Ding-Xiang Yan 2 , Zhong-Ming Li 2
Affiliation  

Superhydrophobic materials integrating electrical conductivity with stretchability are strongly desirable for emerging flexible electronic devices, such as wearable electrical heaters, strain sensors, and flexible power storage apparatus, due to their long-term safe service even under wet or corrosive environments. However, it still remains a great challenge to realize the integration of superhydrophobicity, electrical conductivity, and stretchability. Herein, we demonstrated the fabrication of highly stretchable superhydrophobic conductive textile (SCT) by in situ growth of silver nanoparticles (AgNPs) and designing a poly(dimethylsiloxane) (PDMS) layer on a textile. The resultant SCT exhibited superhydrophobicity with a large water contact angle of 154.6° and a superior electrical conductivity of 861.3 S/m. Moreover, the SCT can maintain superhydrophobicity and high electrical conductivity even after undergoing 5000 stretching–releasing (30% strain) cycles and chemical attacks for 10 h, respectively. The SCT demonstrated excellent electrical-heating performance with a high saturation temperature (63.6 °C) at an ultralow supplied voltage (1.2 V), thus holding promise as a wearable heater for thermal management. These findings conceivably make our SCT have great potential for application in flexible electronic devices that operate under extreme mechanical deformations and wet or corrosive environments.

中文翻译:

在纺织品上方便地构造超疏水表面,具有出色的导电性和可拉伸性

由于新兴疏水性电子设备即使在潮湿或腐蚀性环境下也能长期安全使用,因此对于新兴的柔性电子设备(例如可穿戴式电加热器,应变传感器和柔性蓄电设备),非常需要具有导电性和可伸缩性的超疏水材料。然而,实现超疏水性,导电性和可拉伸性的整合仍然是巨大的挑战。在这里,我们演示了通过原位制备高度可拉伸的超疏水导电织物(SCT)银纳米颗粒(AgNPs)的生长和在纺织品上设计聚二甲基硅氧烷(PDMS)层。所得的SCT表现出超疏水性,具有154.6°的大水接触角和861.3S / m的优异电导率。而且,即使分别经历了5000次拉伸-释放(30%应变)循环和10个小时的化学侵蚀,SCT仍可以保持超疏水性和高电导率。SCT具有出色的电加热性能,在超低电源电压(1.2 V)下具有高饱和温度(63.6°C),因此有望作为用于热管理的可穿戴加热器。这些发现使我们的SCT具有很大的潜力,可用于在极端机械变形以及潮湿或腐蚀性环境下运行的柔性电子设备中。
更新日期:2020-04-24
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