Magnetic field aided polymer melt electrostatic spinning device
A melt electrospinning, magnetic field assisted technology for textile and paper making, filament/thread forming, fiber processing, etc.
Inactive Publication Date: 2010-08-18
BEIJING UNIV OF CHEM TECH
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Problems solved by technology
Because the present invention can spin smoothly without using solvent, it can solve a series of problems caused by the use of solvent in solution electrospinning
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[0011] A kind of magnetic field assisted polymer melt electrospinning device that the present invention takes, the device schematic diagram as shown in Figure 1, it mainly comprises receiving device (1), can be arranged between capillary (3) and receiving device (1) A magnetic field device (2) that generates a magnetic field parallel to the direction of the electric field, a capillary (3) that is matched with a tapered surface with the nozzle (4), and a screw (5) that is connected with the barrel (7) to a conveniently detachable nozzle (4). The heating ring (6) for heating the polymer melt, the barrel (7) of steel structure, the piston shaft (8) that can move up and down in the barrel (7) without leakage, the pressurizing device (9 ), an end cover (10) carrying a pressurizing device (9), a temperature sensor (11), a temperature control device (12), and a very positive high-voltage electrostatic generator (13) output. The distance between the melt outlet of the capillary (3) an...
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Abstract
The invention discloses an electrostatic spinning device for polymer melt assisted by magnetic field. The device mainly comprises a receiving device, a magnetic field device, a capillary tube, a nozzle, an electrical heating ring, a charging barrel with a steel structure, a piston shaft, a pressurizing device, an end closure, a temperature sensor, a temperature control device and a high voltage electrostatic generator, wherein the magnetic field device is arranged between the capillary tube and the receiving device and can generate magnetic field parallel to the direction of an electric field; the capillary tube is in conical fit with the nozzle; the nozzle is connected with the charging barrel; the electrical heating ring is used for heating the polymer melt; the piston shaft can move upand down in the charging barrel and prevent leaking; and the end closure is loaded with the pressurizing device. The device can be used in electrostatic spinning of the polymer melt, and solves a series of problems of solvent electrostatic spinning caused by using solvent, and problems that the nozzle is easy to block in solvent electrostatic spinning, thereby having the advantages of economy, environmental protection, safety, high production rate and easy realization of industrialization.
Description
technical field [0001] The invention relates to an electrospinning device, in particular to an electrospinning device suitable for polymer melt. Background technique [0002] Electrospinning, also known as electrospinning, has a history of nearly 100 years since its discovery. As early as 1934, Anton Fomhals had reported high-voltage electrospinning in the patent, but it was not until 1993 that this technology was defined as electrospinning technology. In recent years, with the heating up of nanotechnology, electrospinning technology has become one of the hottest research fields today. At present, more than 30 kinds of polymers have successfully produced ultra-fine fibers through electrospinning, and the diameter of the thinnest fibers can reach tens of nanometers. The principle of electrospinning can be briefly described as, under the high-voltage electrostatic field, the polymer solution or melt forms a thin stream from the end of the capillary to the receiving device un...
Claims
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IPC IPC(8): D01D5/00
Inventor 杨卫民邓荣坚丁玉梅
Owner BEIJING UNIV OF CHEM TECH