Method and apparatus for the production of nano or micro fine fibres using electrospinning with semi-submerged loose rolling electrodes coated in polymer solution

摘要

An electrospinning method for the production of very fine fibres in the range of 20-200 nanometres by applying a very high voltage electrical field between one or more primary electrodes partially or completely submerged in a bath or trough or tray of polymer solution and a second electrode spaced above the primary electrode and extending parallel to the surface of the primary electrodes, causing the formation of the very thin fibres between the primary electrode and second electrode. The primary electrodes are circular along an axis and can be spheres, cylinders, or ellipsoids. The primary electrodes are coated in a thin film of polymer solution by being free to rotate either by tilting the bath causing the primary electrodes to roll under gravity, using magnetic means, a continuous belt, or the primary electrodes are mounted on rods or a frame, and spun using a motor.