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A microfluidic control nozzle, spinning device and spinning method with three chambers interconnected

A microfluidic and nozzle technology, applied in rayon manufacturing, filament/thread forming, textile and papermaking, etc., can solve problems such as complex processes, and achieve the effects of simple application, convenient operation and significant technological progress.

Inactive Publication Date: 2019-03-05
UNIV OF SHANGHAI FOR SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the above-mentioned technical problems in the prior art, the present invention provides a three-chamber interconnected microfluid control nozzle, a spinning device and a spinning method. The three-chamber interconnected microfluid control nozzle and spinning device And the spinning method should solve the complex technical problem of preparing three-chamber interconnected structural nanofibers in the prior art

Method used

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  • A microfluidic control nozzle, spinning device and spinning method with three chambers interconnected
  • A microfluidic control nozzle, spinning device and spinning method with three chambers interconnected
  • A microfluidic control nozzle, spinning device and spinning method with three chambers interconnected

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Embodiment 1

[0029] Such as figure 1 As shown, the present invention provides a three-chamber interconnected microfluidic control nozzle, including a total capillary 1 , a first curved capillary 2 and a second curved capillary 3 .

[0030] The first curved capillary 2 includes a first straight line section and a first bending portion, the first straight line section is arranged in the total capillary 1 and is close to an inner side of the total capillary 1, the first The bent part passes through one side of the total capillary 1;

[0031]The second curved capillary 3 includes a second straight section and a second bent part, the second straight section is arranged in the total capillary 1 and is close to the other inner side of the total capillary 1, the second The outlet end of the two curved capillary tubes 3 stretches out from the outlet end of the total capillary tube 1, and the bending part of the second curved capillary tube 3 passes out from the other side of the total capillary t...

Embodiment 2

[0038] A high-voltage electrospinning device assembled using the nozzle, its composition schematic diagram is as follows image 3 As shown, 7-high pressure generator, 8-the first syringe pump, 9-the second syringe pump, 10-the third syringe pump, 11-the microfluidic electrospray head with three chambers interconnected, 12-fiber receiving plate, 13-the third One syringe, 14-the second syringe, 15-the third syringe, 16-the first high-elastic silicone hose; 17-the second high-elastic silicone hose.

[0039] An electrospinning device with a microfluidic control nozzle arranged in three interconnected chambers is used to prepare the three fluids by electrospinning. The specific steps are as follows: the first syringe 13 is installed in the first syringe pump 8, and the first spinning filament is added to the syringe 13. For liquid, the syringe 13 is directly connected to the interface port of the microfluidic control nozzle 11 arranged in interconnection among the three chambers. ...

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Abstract

The invention provides a micro-fluid control sprayer with three chambers arrayed in an interconnection manner. The micro-fluid control sprayer with the three chambers arrayed in the interconnection manner comprises a total capillary tube, a first bent capillary tube and a second capillary tube, wherein a linear section of the first bent capillary tube is arranged in the total capillary tube; a bent part of the first bent capillary tube penetrates out from a side surface of the total capillary tube; an outer side wall, in the total capillary tube, of the first bent capillary tube is tightly attached to the inner side wall of the total capillary tube; a linear section of the second bent capillary tube is arranged in the total capillary tube; an outlet end of the second bent capillary tube extends out of an outlet end of the total capillary tube; a bent part of the second bent capillary tube penetrates out from the side surface of the other side of the total capillary tube; and the outer side wall, in the total capillary tube, of the second bent capillary tube is tightly attached to the inner side wall of the other side of the total capillary tube. The invention further provides a high-pressure electrostatic spinning device comprising the sprayer. By the device, a nano fiber with the complicated structure feature of three chambers arrayed in the interconnection manner can be effectively prepared by a single step.

Description

technical field [0001] The invention belongs to the field of nanomaterial preparation, and in particular relates to a microfluid control nozzle with three interconnected chambers, a multi-fluid electrospinning device with microfluid control nozzles arranged in three interconnected chambers, and single-step electrospinning using the device. A method for preparing structural nanofibers in which three chambers are interconnected. Background technique [0002] High-voltage electrospinning technology (referred to as electrospinning) is a top-down nano-manufacturing technology. The jet is formed by overcoming the liquid surface tension and viscoelastic force of the droplets at the tip of the nozzle by applying an electric field force. , Coulomb force and surface tension, the atomized liquid jet is bent, stretched, and split by high frequency, and is stretched tens of millions of times in tens of milliseconds, and is obtained at the receiving end by solvent volatilization or melt c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01D5/00D01F1/10D01F8/10
CPCD01D5/0061D01D5/0069D01F1/10D01F8/10
Inventor 余灯广刘新宽王庆李娇娇
Owner UNIV OF SHANGHAI FOR SCI & TECH