Effects of material and process parameters on the diameter of electrospun Polyacrylonitrile nano-scale fibers are investigated. Response surface methodology is utilized to plan and analysis of the experiments at the settings of molecular weight, solution concentration, voltage and the collector distance. Molecular weight was statistically found to be the dominant factor that shadowed the effects of other parameters. For the fixed molecular weight and collector distance, two-dimensional investigation was also performed. The mean diameter and coefficient of variation were modeled by cubic polynomial response surfaces as function of solution concentration and voltage. Voltage was found to be insignificant at high solution concentrations where fiber diameter goes into micron range. Both factors were significant in the nano-scale fiber production. The response surfaces showed that there is a negative correlation between scatter defined by the coefficient of variation and the fiber diameter. Sub-domain of concentration and voltage parameter space was predicted for the potential nano-scale fiber production.
CITATION STYLE
Sciences, N., & Orhanl, E. (2001). Sabancı University Faculty of Natural Sciences and Engineering Orhanlı Tuzla 34956 Istanbul Turkey. Engineering, 1–12.
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