Liquid uptake and Methanol Transport Behaviour of $PVdF/SPEEK/TiO_2$ Hybrid Membrane for DMFC

DMFC용 $PVdF/SPEEK/TiO_2$ 하이브리드 막의 수분함량과 메탄올 전이현상

A series of inorganic-organic hybrid membranes were prepared with a systematic variation of titanium dioxidenanoparticles content. Their liquid uptake, methanol permeability and proton conductivity as a function of inoranic oxide content were investigated. The results obtained show that the inorganic oxide network decreases the proton conductivity and liquid uptake. It is also found that increase in inorganic oxide content leads to decrease of methanol permeability. In terms of the morphology, membranes are homogeneous and exhibit a good adhesion between inorganic domains and the polymer matrix. The properties of the composite membranes are compared with the standard nafion membrane.