Cylindrical-surface spiral-line-array-distribution-mode electrostatic spinning nozzle

Abstract

The invention discloses a cylindrical-surface spiral-line-array-distribution-mode electrostatic spinning nozzle. The cylindrical-surface spiral-line-array-distribution-mode electrostatic spinning nozzle comprises a spinning spraying head. A plurality of nozzle bodies distributed at equal intervals are arranged on the spinning spraying head, an electric-field shielding groove is formed below the spinning spraying head, and a liquid feeding groove is formed in the spinning spraying head and communicated to part of the nozzle bodies. According to the cylindrical-surface spiral-line-array-distribution-mode electrostatic spinning nozzle, as the liquid feeding groove is formed in the spinning spraying head, relatively-close liquid feeding is achieved, and the quality obtained before and after spinning is guaranteed; meanwhile, the liquid feeding groove is communicated to part of the nozzle bodies, in other words, in the spinning process, only part of electrodes have spinning capacity, and other electrodes are auxiliary electrodes and used for balancing an electric field. The positions of the nozzle bodies are fixed, jet injection points are fixed, spinning uniformity is good, the spinning quality is greatly improved, and the cylindrical-surface spiral-line-array-distribution-mode electrostatic spinning nozzle is suitable for the field of electrostatic spinning.

Description

technical field [0001] The invention relates to the field of electrospinning, in particular to an electrospinning nozzle in a cylindrical helical line array distribution mode. Background technique [0002] At present, the helical blade technology of Shanghai Yuntong Nanotechnology and the metal helix technology of Deakin University in Australia, both of which are helical tracks, research and experiments have proved that the electric field distribution of the helix is ​​more uniform, and the spinning area is continuous. This is the advantage of the helical line distribution, but there is a problem that the spinning electrode has a small curvature and is difficult to be polarized, resulting in a small fringe electric field and requiring a larger voltage to spin; The spinning unit is randomly sprayed and the position is not fixed, which affects the uniformity of the fiber film; moreover, the liquid supply during spinning is all open liquid supply, for the spinning process, ther...

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Problems solved by technology

[0002] At present, the helical blade technology of Shanghai Yuntong Nanotechnology and the metal helix technology of Deakin University in Australia, both of which are helical tracks, research and experiments have proved that the electric field distribution of the helix is ​​more uniform, and the spinning area is continuous. This is the advantage of the helical line distribution, but there is a problem that the spinning electrode has a small curvature and is difficult to be polarized, resulting in a small fringe electric field and requiring a larger voltage to spin; The spinning unit is randomly sprayed and the position is not fixed, which affects the uniformity of the fiber film; moreover, the liquid supply during spinning is all open liquid supply, for the spinning process, there will be problems before and after due to solvent volatilization Spinning inconsistencies

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