Statistical optimization of treatment conditions for the electrochemical oxidation of PAN-based carbon fiber by response surface methodology

In the current study, the effect of three independent variables; electrochemical oxidation time along with concentration and temperature of an acidic electrolyte solution on the oxygen content of surface groups (O/C ratio) and tensile strength of PAN-based carbon fiber have been investigated. The electrochemical oxidation process of carbon fibers is carried out in an acid nitric electrolyte with a constant potential oxidation, obtained from a cyclovoltammetric method. Box–Behnken design, which is subset of the response surface methodology, has been employed to present mathematical models as the function of physical factors for prediction of O/C ratio and tensile strength behavior of the electrochemically oxidized carbon fibers and also optimizing mentioned surface chemistry and tensile strength of carbon fiber

کلیدواژه ها:

Polyacrylonitrile ، Carbon fiber ، Electrolyte ، anodic oxidation ، Cyclo-voltammetry