초록 |
In this work, we prepared carbon black (CB)-filled epoxy composites as a function of CB content, for potential application as bipolar plates in proton exchange membrane fuel cells. Thermal analysis was carried out using thermogravimetric analysis (TGA) and differential scanning calorimeter (DSC). Mechanical properties were evaluated by a flexural modulus test, measured with the threepoint bending method (ASTM D 790). The electrical conductivity of the samples was measured with the help of a four-probe technique. Finally, the hygrothermal characteristics were also investigated on exposure to boiling water and acid reflux. |