Electrospinning array nozzle

Abstract

The invention discloses an electrospinning array nozzle. The array nozzle comprises a spraying body and spinning nozzles, wherein a solution flows in a solution channel, passes through connecting holes, and finally is sprayed out from the spinning nozzles, and the connecting holes are distributed on the top surface and two slopes of the spraying body; included angles are formed by the spinning nozzles on different surfaces, and the solution is sprayed out from the spinning nozzles under the guidance of electric field forces; electric fields of any two adjacent spinning nozzles have mutual influences, and the component, perpendicular to the direction of the corresponding spinning nozzle, of each electric field force is counteracted; the solution moves in the direction of the spinning nozzles under the guidance of the electric field forces, so that the formed spinning quality can be improved; in the projection of a horizontal plane, the connecting holes are divided into multiple groups, each group of connecting holes form a regular hexagon, and one connecting hole is formed in the center of each regular hexagon; the spinning nozzles at vertexes of each regular hexagon is located on a same circumscribed circle, so that the counteracting effect of the electric field forces can be optimal, the density is higher, and meanwhile multiple-spinning operation can be carried out at the same time; thus, the efficiency of industrial production is higher.

Description

technical field [0001] The invention relates to the technical field of electrospinning, and further relates to an array nozzle for electrospinning. Background technique [0002] Electrospinning is a special form of electrostatic atomization of polymer fluid. Electrospinning uses non-Newtonian fluid with high viscosity. Under the action of high-voltage electrostatic generator, a high-voltage electrostatic field is formed between the spinning device and the receiving device. The polymer solution forms droplets at the nozzle and is charged. The charged droplets are accelerated at the top of the Taylor cone under the action of the electric field force. When the electric field force is large enough, the charged droplets overcome the surface tension to form a charged jet, which can run for a long time. When the charged jet runs in the electrospinning space, it is accompanied by solvent volatilization, bending and stretching, and is finally collected by the receiving device and sol...

AI Technical Summary

Problems solved by technology

At present, the electrospinning device used for industrial production usually arranges multiple groups of nozzles side by side, and the nozzles are parallel to each other, but the electric fields formed between the nozzles interfere with each other, and the electric field lines are not distributed along the length of the nozzles. The ejected spinning will be subject to component forces in other directions, which will affect the quality of the final product

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