Characteristics of ionic polymer–metal composite with chemically doped TiO2 particles
作者： Youngsoo Jung , Seong Jun Kim , Kwang J Kim , Deuk Yong Lee
DOI: 10.1088/0964-1726/20/12/124004
关键词:
摘要: Many studies have investigated techniques to improve the bending performance of ionic polymer–metal composite (IPMC) actuators, including 'doping' metal particles in polymer membrane usually by means physical processes. This study is mainly focused on characterization physical, electrochemical and electromechanical properties TiO2-doped membranes IPMCs prepared sol–gel method, which results a uniform distribution inside membrane. X-ray UV–visible spectra indicate presence anatase-TiO2 modified membranes. (0.16 wt%) exhibit highest level water uptake. The glass transition temperature these membranes, measured using differential scanning calorimetry (DSC), increases with increase amount TiO2 Dynamic mechanical analysis (DMA) demonstrated that storage modulus dried as increases, whereas hydrated samples closely related Electrochemical impedance spectroscopy (EIS) shows conductivity decreases increasing content spite an internal resistance drop samples. Above all, deflection IPMC decreased higher while blocking force each sample increased content. Additionally, it was determined lifetime strongly dependent
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