Electrical conductivity and impedance behavior of hydrogels

被引：0

作者：

Warren, Holly ^{[1
]}

in het Panhuis, Marc ^{[1
]}

机构：

[1] Univ Wollonong, Sch Chem, Soft Mat Grp, Wollongong, NSW 2522, Australia

来源：

NANOBIOSYSTEMS: PROCESSING, CHARACTERIZATION, AND APPLICATIONS VII | 2014年 / 9171卷

关键词：

Hydrogel; Impedance; Electrical conductivity; Gellan gum; PEDOT; Carbon nanofibres; Conducting gels; CARBON NANOTUBE; GELLAN; COATINGS; GELATION;

D O I：

10.1117/12.2066370

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The impedance and electrical conductivity behavior of gellan gum hydrogels containing the conducting fillers poly(3,4-ethylenedioxythiophene) poly(styrenesulfonate) (PEDOT:PSS) and vapour grown carbon nanofibers (VGCNF) is presented. Impedance analysis showed that an equivalent circuit consisting of a Warburg element in series with a resistor could be used to model the gels' behavior. It is demonstrated that the addition of the conducting fillers PEDOT:PSS and VGCNFs can result in a measurable improvement in the conductivity of hydrogels with high water content and swelling ratios. Incorporation of combinations of these conducting fillers resulted in an improvement of the conductivity of gellan gum-containing hydrogels with water content (swelling ratio) of at least 97.5% (40) from 1.2 +/- 0.1 mS/cm to 4 +/- 0.6 mS/cm.

引用

页数：6

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