Mushroom head type electrostatic spinning sprayer with controllable free liquid level suitable for high-speed motion and using method of mushroom head type electrostatic spinning sprayer

Abstract

The invention relates to a mushroom head type electrostatic spinning sprayer with controllable free liquid level suitable for high-speed motion and a using method of the mushroom head type electrostatic spinning sprayer. The mushroom head type electrostatic spinning sprayer with the controllable free liquid level suitable for high-speed motion comprises a bowl-shaped metal sprayer module, a spinning solution curvature regulating and control module, a spinning solution fluid form control module and an installation regulating device. According to the invention, the spinning solution fluid form control module and the spinning solution curvature regulating and control module which are made of polytetrafluoroethylene are adopted, so that the spinning solution curvature on the surface of the sprayer can be restrained from obviously fluctuating in a movement process of the sprayer, and meanwhile, the electric field of the spinning sprayer is not interfered. On the basis of not interfering with regulation and control of the electric field, the free liquid level of a spinning solution can be stabilized, the curvature of the spinning solution can be regulated and controlled, volatilization of a solvent can be reduced, the requirement of high-speed movement of the sprayer can be met, and batch preparation of narrow-distribution submicron fibers and nano fibers in high-speed movement of the sprayer can be realized.

Description

technical field [0001] The invention belongs to the technical field of nanofibers and textile machinery, and in particular relates to a controllable free-surface mushroom-head electrostatic spinning nozzle suitable for high-speed motion and a use method thereof. Background technique [0002] When polymer fiber diameters are reduced from the micrometer scale to the submicrometer or nanometer scale, a surprising set of properties emerges. Such as a very large volume specific surface area, the volume specific surface area of ​​nanofibers is basically 1000 times that of microfibers; it can be flexibly functionalized on the surface; it shows superior effects and mechanical properties compared with other known material forms, such as surface And interface effect, small size effect, quantum size effect and quantum tunneling effect and stiffness, tensile strength, etc. These outstanding properties make nanofibers the material of choice for many important applications, and have grea...

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Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a controllable free liquid surface mushroom head type electrospinning nozzle suitable for high-speed movement and its use method, so as to solve the instability of the free liquid surface in the batch electrospinning process of the current high-speed movement of the nozzle , the free liquid surface of the spinning solution to be spun is too large, and the solvent of the spinning solution to be spun is volatile. At the same time, the precise design and control of the electric field and the curvature of the spinning solution during the electrospinning process is realized, and the narrow distribution of submicron fibers and nanofibers is realized. batch preparation of

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