Fabrication of Conductive Fabric as Textile Electrode for ECG Monitoring

摘要

To develop textile electrodes for electrocardiogram (ECG) monitoring, cotton woven fabric was coated with polypyrrole via electrochemical polymerization process. A two-step polymerization process was conducted, i.e. via chemical polymerization to make cotton fabric electric conductive and then electrochemical polymerization. Evaluations of the electrodes in terms of electrical resistance and electrochemical impedance spectroscopy were made to examine the progress of electric performances after each processing step. The results show that, after electrochemical polymerization process, the conductivity of the electrode is increased and the quality in transferring electrical signals improved.