A nozzle for preparing nanofibers and equipment thereof

A technology of nanofibers and nozzles, applied in fiber processing, textiles and papermaking, filament/wire forming, etc., can solve problems such as corona discharge, reduce corona discharge phenomenon, and improve production efficiency

Active Publication Date: 2017-07-11
昆山同日机器人智能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

therefore figure 1 The sharp needle shape designed in the middle is very easy to produce corona discharge phenomenon

Method used

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  • A nozzle for preparing nanofibers and equipment thereof
  • A nozzle for preparing nanofibers and equipment thereof
  • A nozzle for preparing nanofibers and equipment thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0033] figure 2 is a schematic diagram of a nozzle 30 used in electrospinning to prepare fibers in Example 1. Nozzle 30 generally includes a sheath 32 and a cavity 34 .

[0034] The sheath 32 has a liquid inlet 36 through which the spinning liquid enters the cavity 34 . The sheath 32 also has a discharge outlet 38 through which liquid exits the cavity 34 .

[0035] The nozzle 30 also includes a buffer polarizer 40 placed in the middle of the cavity 34 , and the charge is efficiently transferred to the liquid in the cavity 34 through the polarizer during spinning. It is important that the structural size of the polarizer is such that the electrode specific surface area is at least 5 m2 / kg.

[0036] A suitable polarizer 40 has a large specific surface area for simple and rapid charge transfer into the liquid within cavity 34 . Polarizer construction types include: wires, meshes, grids, foams, sponges, cloths, braids, fins, parallel plates, bonded powder constructions, inter...

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Abstract

The invention discloses a nozzle preparing nanofiber and a device thereof. The nozzle comprises a shell sheath with a cavity, at least one liquid inlet for liquid to enter a cavity, at least one discharge outlet for the liquid to get out of the cavity, and a buffering polarizer contained in the cavity and used for transmitting charges into the liquid, and the specific surface area of the buffering polarizer is at least 5 m<2> / kg. The device comprises the nozzle, a power source, a conveying device used for conveying the liquid to the nozzle, and a receiving device used for receiving fiber sprayed out of the nozzle. The power source is provided with a positive electrode port and a negative electrode port, one end of the power source is connected to the buffering polarizer, and the other end of the power source is connected to the receiving device. According to the nozzle preparing nanofiber and the device thereof, the production efficiency is improved by setting the buffering polarizer with the high specific surface area, the discharge outlet is formed in the flat outer surface of the shell sheath, and the phenomenon of corona discharge is reduced.

Description

technical field [0001] The invention relates to a nozzle and equipment for preparing nanofibers, in particular to a nozzle and equipment for preparing nanofibers through electrostatic spinning technology. Background technique [0002] Electrospinning technology is the use of electrostatic force to prepare ultrafine fibers or yarns, usually in nanometer to micrometer size, from solution. The droplet is charged under the action of the electric field, and the electrostatic force will neutralize the surface tension to deform the droplet. When the electrostatic force is greater than the surface tension to a certain extent, the droplet will form a jet stream, which splits during the spraying process and dissolves the solvent. Evaporated to finally obtain nanofibers. Taylor cones are formed where the thin stream is ejected. If the intermolecular forces of the droplet are strong enough, the rivulet does not break apart and instead forms a bundle of charged rivulets. [0003] fig...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01D5/00
CPCD01D5/0069
Inventor 邓超然姚万里廖有用
Owner 昆山同日机器人智能科技有限公司
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