Electrostatic-spinning fiber deposition homogenizing device and method

Abstract

The invention discloses an electrostatic-spinning fiber deposition homogenizing device and method, and belongs to the field of electrostatic spinning. The electrostatic-spinning fiber deposition homogenizing device mainly consists of a plurality of spinning spray heads, an electrostatic generator, a plate electrode device and a fiber receiving net, wherein the spinning spray heads are arranged at the top and are connected with a ground wire, the fiber receiving net is arranged below the spinning spray heads, the plate electrode device is arranged below the fiber receiving net and mainly consists of plate electrodes, a plate electrode frame, belts, belt pulleys and a stepping motor, each spinning spray head corresponds to one plate electrode, and the rotation axis of each plate electrode is arranged on the plate electrode frame; the direction of an electric field is changed by rotating the plate electrodes, and the fiber deposition area of a single spray head is increased, so that the fiber deposition areas of a row of spinning spray heads are connected together to form a large whole nonwoven fabric structure. According to the electrostatic-spinning fiber deposition homogenizing device and method which are disclosed by the invention, the reciprocating movement of a fiber receiving device or spray heads vertical to a nonwoven fabric advancing direction can be omitted, and a whole set of movement device is omitted, so that a nonwoven fabric production device is simplified.

Description

technical field [0001] The invention relates to an electrospinning fiber deposition and homogenization device and method, belonging to the field of electrospinning. Background technique [0002] In recent years, with the research and development of nanotechnology, the electrospinning technology that can prepare nanofiber materials has also received more attention, and it has been developed and researched one after another. Electrospinning technology has become the most effective and important method for preparing nanofibers. method. [0003] The principle of electrospinning is to apply a high voltage between the nozzle and the receiving device to form an electric field between the two, and the polarized melt or solution overcomes the surface tension under the action of the electric field to form a jet and spray it to the receiving plate. On, forming ultrafine fibers. When using electrospinning to produce non-woven fabrics, since the filaments produced by one nozzle are lim...

AI Technical Summary

Problems solved by technology

When using electrospinning to produce non-woven fabrics, because the filaments produced by one nozzle are limited, multiple nozzles are often used, but when the nozzles are too close, the electric field between each other will be weakened, so the distance between the nozzles is limited, and The spinning area of ​​a nozzle is limited. When multiple nozzles are used, the filaments spun by different nozzles have no overlapping area, so that it cannot be spun into a large area of ​​non-woven fabric with uniform distribution of filaments, so this requires a receiving device or The nozzle moves back and forth in the direction perpendicular to the direction of the non-woven fabric. In order to realize the reciprocating movement, it is necessary to add an additional set of moving mechanisms, which complicates the entire non-woven fabric production device.

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