writer：Wu,Yanxiao Yang,Ying Li,Cheng Li,Yunbo Chen,Wei
keywords：PEDOT:PSS,MOF, Actuator, Electrode Ink
source：期刊
specific source：https://www.frontiersin.org/articles/10.3389/fbioe.2020.00212/full
Issue time：2020年

Smart fabrics that integrate electronic devices with textiles are

emerging as potential candidate for apparel and electronics industries.

Soft actuators based on conducting polymers are promising for smart

fabrics because of light weight, flexibility, and large deformation

under low voltage. However, due to the distinct characteristics of

textile and electronic components, the connection between textiles and

electronic devices still keeps a challenge in development of smart

fabrics. Here, we report an new strategy to prepare a flexible and

electroactive textile actuator. The fabric electrolyte was directly

coated with an electrode ink, which is composed of

Poly(3,4-ethylenedioxythiophene):poly(styrene sulfonic acid) doped with

carbonized carbon nanotubes wired zeolite imidazolate framework-8

composite. A pre-treatment of the fabric was made by soaking hydrophobic

poly(vinylidene fluoride-co-hexafluoropropylene) to increase the ionic

conductivity (6.72 mS cm–1) and prevent the electrode ink

from penetrating through the fabric. It was found that the textile

actuator could work in air stably under a low voltage of 3 V and operate

at frequencies from 0.1 to 10 Hz with large strain difference (0.28% at

0.1 Hz), fast strain rate (2.8% s–1 at 10 Hz) and good

blocking force (0.62 mN at 0.1 Hz). The key to high performance

originates from high ionic conductivity of fabric electrolyte and large

specific surface area, good mechanical properties of the metal-organic

framework derivative-based composite electrodes, which present insights

into preparing other smart fabrics such as textiles sensors, flexible

displays, and textile energy storage devices.