highly stretchable, electrically conductive textiles ... highly stretchable, electrically conductive

Nano Res

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Highly Stretchable, Electrically Conductive Textiles

Fabricated from Silver Nanowires and Cupro Fabrics

Using a Simple Dipping-Drying Method

Hui-Wang Cui1(), Katsuaki Suganuma1, and Hiroshi Uchida2

Nano Res., Just Accepted Manuscript • DOI: 10.1007/s12274-014-0649-y

http://www.thenanoresearch.com on November 24 2014

© Tsinghua University Press 2014

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Address correspondence to Hui-Wang Cui, email: cuihuiwang@hotmail.com.

Nano Research DOI 10.1007/s12274-014-0649-y

Nano Res

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TABLE OF CONTENTS (TOC)

Highly Stretchable, Electrically Conductive Textiles

Fabricated from Silver Nanowires and Cupro

Fabrics Using a Simple Dipping-Drying Method

Hui-Wang Cui1,*, Katsuaki Suganuma1, and Hiroshi

Uchida2

1 Institute of Scientific and Industrial Research, Osaka

University, Mihogaoka 8-1, Ibaraki, Osaka 567-0047,

Japan.

2 Institute for Polymers and Chemicals Business

Development Center, Showa Denko K. K., 5-1 Yawata

Kaigan Dori, Ichihara, Chiba 290-0067, Japan.

Page Numbers. The font is

ArialMT 16 (automatically

inserted by the publisher)

Highly stretchable, electrically conductive textiles were fabricated

from silver nanowires and cupro fabrics using a simple

dipping-drying method, that they had displayed low electrical

resistances at 0.0047－0.0091 Ω in the range of 0%－190% strains.

Provide the authors’ website if possible.

Author 1, website 1

Author 2, website 2

2

Highly Stretchable, Electrically Conductive Textiles Fabricated from Silver Nanowires and Cupro Fabrics Using a Simple Dipping-Drying Method

Hui-Wang Cui1(), Katsuaki Suganuma1, and Hiroshi Uchida2

1 Institute of Scientific and Industrial Research, Osaka University, Mihogaoka 8-1, Ibaraki, Osaka 567-0047, Japan. 2 Institute for Polymers and Chemicals Business Development Center, Showa Denko K. K., 5-1 Yawata Kaigan Dori, Ichihara, Chiba

290-0067, Japan.

Received: day month year / Revised: day month year / Accepted: day month year (automatically inserted by the publisher)

© Tsinghua University Press and Springer-Verlag Berlin Heidelberg 2011

ABSTRACT In this study, we combined silver nanowires and cupro fabrics together using a dipping-drying method to

prepare electrically conductive textiles. The silver nanowires were adhered and absorbed onto microfibers to

form electrically conductive fibers, and also filled into the gaps and spaces between/among microfibers, and

stacked, piled together to form the electrically conductive networks, which both had given highly electrical

conductivity to the electrically conductive textiles. The obtained electrically conductive textiles presented low

resistance and good stretchability, e.g., 0.0047－0.0091 Ω in the range of 0%－190% strains. The obtained

electrically conductive textiles also presented excellent flexibility, whether stretched, shrunk, or bent, they still

kept highly, stably electrical conductivity, which can be used as smart textiles, especially in those fields

associated with weave, electronics, biology, medicine, food, life, clothes, aviation, and military.

KEYWORDS A. Fabrics/textiles; A. Metals; A. Smart materials; B. Electrical properties.

Address correspondence to Hui-Wang Cui, email: cuihuiwang@hotmail.com.

Nano Res DOI (automatically inserted by the publisher) Research Article

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1. Introduction

Smart textiles, a class of highly intelligent

textiles integrated by the multi-disciplinary

knowledge (e.g., textile, electronics, chemistry,

physics, mechanics, biology, medicine, etc.), is based

on the concept of biomimicry, capable of simulating

life system, and has the dual function that can

effectively perceive and response to various changes

and stimuli from the environment, such as

mechanics, heat, light, temperature, electromagnetics,

chemicals, biological odors, and so on. Till now, a

variety of functional smart textiles, e.g., thermostat

textiles, physiological state telemetry textiles, solar

textiles, shape memory textiles, waterproof and

moisture permeable textiles, color-changing textiles,

and E-smart textiles, have been greatly developed.

Among them, the E-smart textiles are a kind of novel

textiles, which is based on electronics, integrating

some hi-tech solutions such as sensing,

telecommunication and artificial intelligence into

textiles. While the E-smart textile applications have

made a limited commercial impact so far, with

relatively small volumes of commercial products

launched primarily in the high performance apparel

sector, predictions for growth of this market as a

whole are huge. As deep integration of several

cutting-edge technologies such as micro-electronics,

nanotechnology, and biotechnology, E-smart textiles

are one of the most dynamic and fast growing

sectors and offers huge potential [1-2].

How to prepare electrically conductive textiles

(also called electrically conductive fibers) is the key

to produce E-smart textiles. Coating [3], depositing

[4], spinning [5], printing [6], synthesizing [7],

dipping [8], and solution growing [9] methods have

been used widely to fabricate electrically conductive

textiles from the conductive polymers (e.g.,

polypyrrole [10], polyaniline [11], the mixture of

poly(3,4-ethylenedioxythiophene) and

poly(4-styrenesulfonate) [12]), metal particles (e.g.,

silver [13], copper [14], nickel [15], aluminum [16],

zinc [17]), and carbon fillers (e.g., graphite

nanoplatelets [18], carbon nanotube [19]). About the

silver based smart textiles, silver particles are often

used. For example, Xue et al produced silver

nanoparticles on cotton fibers by reduction of

[Ag(NH3)2]+ complex with glucose, and the silver

nanoparticles formed dense coating around the

fibers rendering the intrinsic insulating cotton

textiles conductive [20]. Paul et al printed a

polyurethane paste on to a woven textile to create a

smooth, high surface energy interface layer, and

subsequently printed a silver paste on top of this

interface layer to provide a conductive track, which

was then encapsulated with another layer of

polyurethane paste so that the silver track was

protected from abrasion and creasing, forming the

electrodes [21, 22]. Apparently, the usage of silver

nanowires (AgNWs), which are with large aspect

ratio and can present higher flexibility than silver

particles [23-25], to fabricate smart textiles have been

seldom reported. Therefore, in this study, we

combined the AgNWs and cupro fabrics together

using a dipping-drying method to prepare

electrically conductive textiles [Figure 1(a)]. The

AgNWs were adhered and absorbed onto

microfibers to form electrically conductive fibers,

and also filled into the gaps and spaces

between/among microfibers, and stacked, piled

together to form the electrically conductive networks,

which both had given highly electrical conductivity

to the electrically conductive textiles.

2. Experimental

2.1. Samples

AgNWs were synthesized in a large scale

according to the previously reported polyol

procedures [26, 27]. They were ≥60 μm, even 100

μm in length, the diameter was about 60 nm, and

dispersed in ethanol to form a 0.5% suspension

solution [Figure 1(a)]. The textile (100 mm×100 mm

× 250 μm) was a cellulosic product, named

BEMCOTTM M-3 cupro fabric (Asahi Kasei Fibers

Corporation, Tokyo, Japan) [Figure 1(a)].