Diameter-tuning of electrospun cellulose acetate fibers: A Box-Behnken design (BBD) study

► Box-Behnken design is used to predict electrospun cellulose acetate fiber diameter. ► Voltage, tip-to-collector distance and feed rate exert linear and quadratic effect. ► Fiber morphology and size-spectrum are dependent on the chosen variables. ► Reasonable agreement exists between observed and predicted fiber diameter. ► The model may aid in studying process-parametric modulations on fiber-diameter.