Mechanical stability optimization of Flemion-based composite artificial muscles by use of proper solvent

Ionic polymer metal composite (IPMC) is a promising candidate for artificial muscles and other bio-related applications. Compared with the widely reported Nafion, Flemion-based IPMC has some more attractive advantages. To improve its mechanical stability in dry environments, the organic solvent glycerol was applied. The mechanical characteristics such as tip displacement, tip force and durability were measured and analyzed. The results showed that Flemion-based IPMC with glycerol as solvent has optimum mechanical stability in dry conditions and will be a good candidate for artificial muscles working in air.