Curved-surface-shaped electrostatic spinning device

Abstract

The invention relates to a curved-surface-shaped electrostatic spinning device which comprises a spinning head with a curved-surface-shaped protruding surface. The liquid supply device comprises liquid supply equipment and a liquid supply pipe, one end of the liquid supply pipe is connected with the liquid supply equipment, the other end of the liquid supply pipe forms a liquid outlet end, the liquid outlet end is provided with a liquid outlet, the liquid outlet end penetrates out of the protruding face from bottom to top, and the liquid outlet is located above the protruding face so that spinning liquid overflowing from the liquid outlet can cover the protruding face; the recovery device is arranged below the spinning head; the power supply device is electrically connected with the spinning head to enable the spinning solution flowing through the convex surface to generate jet flow under the electrostatic action; and the receiving device is arranged above the spinning head to receive the jet flow. The liquid supply pipe penetrates out of the curved-surface-shaped protruding face, when spinning liquid reaches the liquid outlet end of the liquid supply pipe, overflows through the liquid outlet and is evenly spread on the protruding face, the power supply device applies high voltage to the spinning head at the moment, an electric field is generated between the power supply device and the receiving device, jet flow can be generated at all positions of the protruding face, the jet flow number is increased, and efficiency is improved.

Description

technical field [0001] The invention relates to a curved electrostatic spinning device, which belongs to the technical field of electrostatic spinning. Background technique [0002] With the rapid development of nanotechnology, nanofibers are widely used in biology, filtration, energy and other fields due to their high specific surface area and high aspect ratio. Electrospinning is one of the simplest methods for preparing nanofibers. The traditional single-needle electrospinning technology is prone to clogging and the output is only 0.01g / h-0.1g / h, making it difficult to realize industrial application. Many researchers are committed to the in-depth study of multi-needle electrospinning and needle-free electrospinning techniques to improve the yield of nanofibers. Multi-needle electrospinning technology only increases the number of needles on the basis of single-needle electrospinning technology, which is considered to be one of the most effective methods to increase the yi...

AI Technical Summary

Problems solved by technology

The free liquid surface spinning technology uses the electrostatic force provided by the high-voltage electric field to overcome the surface tension of the polymer liquid surface, forms a Taylor cone on the polymer surface, and further forms a jet, which is thinned into nanometers under the action of the electric field force. fiber, but it only produces jets at the edge of the conductive metal, affecting spinning yield

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