Controlled deposition of electrospun poly(ethylene oxide) fibers via insulators

Electrospinning is a subjecting of a fluid jet to a high electric field process, by which polymer fibers with nano-scale diameters lower than 100 nm are formed. Significant progress has been made in this area throughout the past few years and this technology has been exploited to a wide range of applications. However, the efficiency is still very low because the repelling force could not be controlled between two needles. For the investigation, two needles were used. And 3 kinds of insulators, including polytetrafluoroethylene (PTFE) tube, polyvinyl chloride resin (PVC) tube and silicon rubber tube, were invited to overcome the repelling force. It is concluded that it is possible to provide a more controllable and easily achieved electrospinning process by using insulators.