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Nano fiber batch manufacturing device

A nanofiber and manufacturing device technology, applied in the field of nanofiber batch manufacturing devices, can solve the problems of easy blockage of tube holes, complex structure and high injection voltage threshold, and achieve the effect of improving production efficiency

Inactive Publication Date: 2011-09-21
XIAMEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method needs an air pump to assist the liquid supply, the structure is relatively complicated, and there is a problem that the tube hole is easy to block
Patent WO2005 / 024101A1 discloses a tipless batch spinning method, which uses a cylindrical drum immersed in a polymer solution as a jet head, and uses a large number of tiny protrusions or crests generated by the interaction between a liquid film and an electric field as a jet source, instead of Spinning with traditional needle-point nozzles can significantly increase the output, but it has disadvantages such as high injection voltage threshold, difficult cleaning of residual solution on the drum, and unsuitable for long-term production.

Method used

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  • Nano fiber batch manufacturing device
  • Nano fiber batch manufacturing device
  • Nano fiber batch manufacturing device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Such as Figure 1~3 As shown, a nanofiber batch manufacturing device includes a high-voltage electrostatic generator 1 , a collecting plate 2 , a liquid supply tank 3 , a solution tank 4 , an auxiliary lattice spray head 5 , and an auxiliary lattice spray head driving device 6 . The liquid supply tank 3 supplies liquid to the solution tank 4 . The collecting plate 2 is connected to the negative electrode of the high voltage electrostatic generator 1 and grounded. The auxiliary dot matrix spray head 5 is connected to the positive electrode of the high voltage electrostatic generator 1 . The collection plate 2 is placed directly above the solution tank 4 . The auxiliary dot-matrix jet head 5 is placed in the solution tank 4 and connected with the auxiliary dot-matrix jet head driving device 6 .

[0022] In this embodiment, the auxiliary dot matrix spray head 5 is a conductive plate provided with a hemispherical spray head, and the diameter of the hemispherical spray he...

Embodiment 2

[0024] Such as Figure 4 As shown, the difference between this embodiment and Embodiment 1 is that the auxiliary dot matrix injection head driving device 6 is a disc cam mechanism, and the disc cam mechanism is provided with a flat plate 13, a disc cam 11 and a motor 101, and the flat plate 13 is located on the disc cam 11 top, and the disc cam 11 is located on the motor 101 main shaft. The lifting of the conductive plate is controlled by the rotation of the disc cam. Its rotational speed and disc cam profile are determined according to the duration of the individual jets during production. The lifting cycle of the auxiliary dot matrix spray head 5 is controlled by controlling the rotation of the cam and changing the cam profile.

Embodiment 3

[0026] Such as Figure 5 As shown, the difference between this embodiment and Embodiment 2 is that the dot matrix injection head driving device 6 is a cylindrical cam mechanism, and the cylindrical cam mechanism is provided with a support 14, a cylindrical cam 12 and a motor 102, and the support 14 It is arranged on one side of the cylindrical cam 12, and the cylindrical cam 12 is arranged on the main shaft of the motor 102. The lifting of the conductive plate is controlled by the rolling of the cam moving along the spiral track, and its rotation speed and cam profile are determined according to the continuous generation time of each single jet in the production process. The lifting cycle of the auxiliary dot matrix spray head 5 is controlled by controlling the rotation of the cam and changing the cam profile.

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PUM

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Abstract

The invention provides a nano fiber batch manufacturing device which is simple, easy in expansion, free of an air pump and free from plugging in a nozzle. A high-voltage electrostatic generator, a collecting plate, a liquid supply slot, a solution slot, an auxiliary dot matrix injection head and an auxiliary dot matrix injection head driving device are arranged in the nano fiber batch manufacturing device; the cathode of the high-voltage electrostatic generator for generating high voltage is connected with the collecting plate for collecting nano fibers and grounded; the collecting plate is arranged above the solution slot; the liquid supply slot for supplying a polymer solution is communicated with the solution slot for containing the polymer solution through a guide pipe; the auxiliary dot matrix injection head is provided with array small-curvature radius protrusions and used for auxiliary forming of a high-electric-field intensity induction solution and generating a jet flow on the protrusions; the auxiliary dot matrix injection head is arranged on the auxiliary dot matrix injection head driving device; the auxiliary dot matrix injection head is connected with the anode of the high-voltage electrostatic generator; and the auxiliary dot matrix injection head driving device is used for driving the periodic motion of the auxiliary dot matrix injection head.

Description

technical field [0001] The invention relates to a nanofiber batch manufacturing device, in particular to a spinning device with a liftable auxiliary dot matrix spray head. Background technique [0002] Due to their high specific surface area and superior mechanical, optical and electrical properties, nanofibers have a wide range of potential applications in many fields such as sensors, actuators, catalysts, electronics, drug sustained release, bioskeletons, optical devices, filtration and protective clothing. . Among the methods of manufacturing nanofibers, electrospinning may become the main nanofiber manufacturing method in the future due to its simple technology and low cost, and has become a research hotspot in recent years. However, the output of traditional electrospinning is only 0.02g / h, and the efficiency is very low. The contradiction between the urgent need for electrospun nanofibers and its extremely low efficiency has become increasingly prominent, which seriou...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01D5/00D01D13/00D01D4/02
Inventor 吴德志孙道恒黄翔宇胡兴旺费云飞
Owner XIAMEN UNIV