Hole-in-hole nozzle with uniformly distributed electric fields
A hole sleeve and electric field technology, applied in textile and paper making, fiber processing, filament/line forming, etc., can solve the problem of uneven distribution of electric field, and achieve the effect of eliminating concentration effect, good quality and improving uniformity.
Active Publication Date: 2019-11-22
DONGHUA UNIV
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Problems solved by technology
[0006] The purpose of the present invention is to provide a hole-in-hole nozzle with uniform electric field distribution in order to overcome the problem that the electric field distribution in the spinning process of the electrospinning device in the prior art is very uneven
Method used
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[0035] The present invention will be further described below in combination with specific embodiments. It should be understood that these examples are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the teachings of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims of the present application.
[0036] A hole-in-hole nozzle with uniform electric field, such as figure 1 As shown, it includes a main board 7.1, an auxiliary board 4.1 and a metal electrode 3;
[0037] The main plate 7.1 is a polytetrafluoroethylene plate, the auxiliary plate 4.1 is a metal plate, the main plate 7.1 and the auxiliary plate 4.1 are circular plates, the diameters are 40-42mm and 34-36mm, and the thicknesses are 1-2mm and 1-3mm respect...
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Abstract
The invention relates to a hole-in-hole nozzle with uniformly distributed electric fields. The hole-in-hole nozzle comprises a main body plate and an auxiliary plate, wherein the main body plate is insulated and has a 90-degess contact angle with water, the main body plate is provided with a hole passage, one or more liquid guide pipes are inserted into the auxiliary plate, all liquid guide pipesare inserted into the hole passage, and the portions inserted into the hole passage are insulated; different liquid guide pipes are mutually independent or mutually nested and matched with the hole passage to form a plurality of through holes, the through holes include through holes formed by a hole passage wall and the walls of all the liquid guide pipes, through holes formed by the wall of any two liquid guide pipes after mutual nesting and through holes formed in the liquid guide pipes of which the liquid guide pipes are not nested, and different through holes are separately communicated with different solution channels. The hole-in-hole nozzle with uniformly distributed electric fields is simple in structure and convenient to use, and compared with existing needle-in-needle and needle-in-hole devices, the uniformity of electric field distribution is remarkably improved, and the uniformity of bi-component micro-nano fibers is improved.
Description
technical field [0001] The invention belongs to the technical field of electrostatic spinning devices, and relates to a hole-in-hole nozzle with uniform electric field, in particular to a hole-in-hole two-component nozzle with even electric field distribution. Background technique [0002] Electrospinning technology is a process that can use a high-voltage electrostatic field to control the shape and specification of fibers to manufacture nanofiber webs or continuous fibers that are aligned. This technology is to overcome the surface tension of the polymer solution or melt under a high-voltage electrostatic field of several thousand volts to tens of thousands of volts to generate a charged jet flow. The solution or melt dries and solidifies during the spraying process, and finally falls on the receiving device Form fiber mats or other shapes of fiber aggregates. Due to its high specific surface area and large porosity, electrospun nanofibers have been widely used in the fie...
Claims
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IPC IPC(8): D01D5/00
CPCD01D5/0069
Inventor 赵铁男郑元生曾泳春
Owner DONGHUA UNIV