Continuously-producing high-efficiency melt electrostatic spinning device

Abstract

The invention discloses a continuously-producing high-efficiency melt electrostatic spinning device, and belongs to the field of spinning. The continuously-producing high-efficiency melt electrostatic spinning device comprises a precision extruder, a spinning die head, a high-efficiency nozzle, a static generator and a receiving device, wherein the precision extruder and the spinning die head are in bolt connection; the high-efficiency nozzle is grounded; a reel of the receiving device is connected with the anode of the high pressure static generator through a metal bearing, and is made of a conducting material; a bracket of the reel is made of an insulating material; a belt used by a belt drive mechanism of the reel is made of an insulating material; the reel of the receiving device is provided with a lifting device; the spinning die head is in cone close fit with the high-efficiency nozzle; and several planes are uniformly cut off on the cone of the high-efficiency nozzle. Through the melt electrostatic spinning, a problem caused by using a solvent is avoided, and the efficiency of the electrostatic spinning is greatly improved by using the high-efficiency spinning nozzle.

Description

technical field The invention relates to an electrostatic spinning device, which is particularly suitable for the continuous production of melt electrostatic spinning and belongs to the field of spinning. Background technique The electrospinning method has been recognized as the simplest and most effective method for preparing nanofibers. At present, more than 30 kinds of polymers have successfully prepared ultrafine fibers through this method, and the smallest diameter reaches tens of nanometers. Regarding the research results of electrospinning, the relevant literature has increased exponentially in recent years. However, in the more than 100 years since its discovery to the present, electrospinning technology has always remained in the research stage of the laboratory and has not moved towards industrialization. There are two main obstacles hindering the industrialization of electrospinning technology: one is that the efficiency of electrospinning is too low. Although t...

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Problems solved by technology

Although there have been many reports on the patents of mass-produced electrospinning devices, these devices are all aimed at solution electrospinning, and 90% of the solution in the solution electrospinning process is evaporated in the form of solvents. The direct cause of low efficiency of solution electrospinning

The second is that the current research on electrospinning mostly focuses on solution electrospinning, and solution electrospinning has a series of problems because of the use of solvents: such as the recovery of solvents; safety issues in the field of biomedicine; some Polymers such as polypropylene and polyethylene cannot find a suitable solvent to make a solution at room temperature; the evaporation of the solvent will cause the surface of the fiber to be not smooth, or even defects; the use of expensive solvents will increase the cost; the fine spinneret holes are easy to block , affecting continuous production, etc.

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