Portable handheld spinning device

Abstract

The invention discloses a portable handheld spinning device which comprises a solution container. The solution container comprises a cylinder body and a piston, and the piston divides the cylinder body into an air pressure cavity and a solution cavity; a needle head communicated with the interior of the solution cavity is arranged under the solution cavity, the outer surface of the needle head is sleeved with an air chamber, the tail end of the needle head penetrates through a third air outlet of the air chamber to stretch out of the air chamber and then is coaxially installed with the third air outlet to form a coaxial nozzle system, and the air chamber is provided with a second air inlet. According to the portable handheld spinning device, the spinning solution feeding speed is changed by changing pushing force of the piston, according to the Bernoulli principle, the gas speed can be rapidly increased on the condition that the pressure of the gas is quickly decreased from the high pressure to the low pressure, and therefore under the action of the high and low pressure of the interior and exterior of a coaxial nozzle formed by the needle head and the third air outlet, cone-shaped liquid drops can be formed at the needle tip; high-speed airflow viscosity force overcomes surface tension of the liquid drops, then polymeric nanofibers are stretched out from the needle tip to form jet flow, and finally the polymeric nanofibers are deposited on a collecting device.

Description

Technical field [0001] The invention relates to a spinning device in the field of micro-nano processing, in particular to a portable hand-held spinning device using the principle of solution blowing spinning. Background technique [0002] Nowadays, there are two main methods for producing nanofibers: electrostatic spinning technology and solution blow spinning (solution blowspinning). The principle of electrostatic spinning is: polymer solution or melt generates jet under the action of high voltage electric field to make it from The needle tip is ejected, forming a jet of polymer solution. With the rapid volatilization of the solvent, the jet quickly solidifies and forms interlaced nanofibers on the receiver. Electrospinning technology limits the development of electrospinning industrialization due to its production efficiency being disturbed by uncontrollable factors such as electric field and magnetic field. Solution blown spinning is an innovative method for producing micro-...

AI Technical Summary

Problems solved by technology

Due to the interference of uncontrollable factors such as electric field and magnetic field, the production efficiency of electrospinning technology limits the development of electrospinning industrialization

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