Multiresponsive Graphene‐Aerogel‐Directed Phase‐Change Smart Fibers,Advanced Materials

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Multiresponsive Graphene‐Aerogel‐Directed Phase‐Change Smart Fibers
Advanced Materials ( IF 27.4 ) Pub Date : 2018-06-14 , DOI: 10.1002/adma.201801754
Guangyong Li _{1,

2} , Guo Hong ₃ , Dapeng Dong ₂ , Wenhui Song ₄ , Xuetong Zhang ₂

Affiliation

Wearable devices and systems demand multifunctional units with intelligent and integrative functions. Smart fibers with response to external stimuli, such as electrical, thermal, and photonic signals, etc., as well as offering energy storage/conversion are essential units for wearable electronics, but still remain great challenges. Herein, flexible, strong, and self‐cleaning graphene‐aerogel composite fibers, with tunable functions of thermal conversion and storage under multistimuli, are fabricated. The fibers made from porous graphene aerogel/organic phase‐change materials coated with hydrophobic fluorocarbon resin render a wide range of phase transition temperature and enthalpy (0–186 J g⁻¹). The strong and compliant fibers are twisted into yarn and woven into fabrics, showing a self‐clean superhydrophobic surface and excellent multiple responsive properties to external stimuli (electron/photon/thermal) together with reversible energy storage and conversion. Such aerogel‐directed smart fibers promise for broad applications in the next‐generation of wearable systems.

中文翻译：

多响应石墨烯-气凝胶定向相变智能光纤

可穿戴设备和系统需要具有智能和集成功能的多功能设备。响应外部刺激（例如电，热和光子信号等）的智能光纤以及提供能量存储/转换是可穿戴电子设备必不可少的组件，但仍然是巨大的挑战。在此，制造出具有可调节的热转化和在多种刺激下储存的功能的柔性，坚固，自洁的石墨烯-气凝胶复合纤维。由疏水性碳氟化合物树脂包覆的多孔石墨烯气凝胶/有机相变材料制成的纤维具有很宽的相变温度和焓值（0–186 J g ^-1）。坚固而柔顺的纤维被捻成纱线并编织成织物，显示出自清洁的超疏水表面，对外部刺激（电子/光子/热）具有出色的多重响应特性，以及可逆的能量存储和转换。这种以气凝胶为导向的智能纤维有望在下一代可穿戴系统中得到广泛的应用。

更新日期：2018-06-14

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