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Synchronous circulation type spiral sealing belt device for electrostatic spinning

A technology of electrospinning and spiral sealing, which is applied in the direction of filament/thread forming, textile and paper making, fiber treatment, etc., to achieve the effect of long-term stability and long-term continuous operation

Active Publication Date: 2015-07-15
麦克斯(广东)纳米科技有限公司
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a synchronous circulation type spiral sealing belt device for electrospinning in view of the problem of solvent volatilization of the existing open "spiral type" electrospinning equipment, which can ensure the rotation of the spiral electrode At the same time, the solvent volatilization of the material liquid in the material liquid tank is suppressed to a large extent. It is an innovative sealing device, which mainly keeps the linear speed of the annular sealing belt and the rotating spiral electrode consistent in size and direction. A dynamic way of synchronous movement is used to seal the material liquid tank to a large extent, which can reduce the volatilization area during the spinning process, effectively inhibit the rapid volatilization of solvent in the material liquid tank, and facilitate the spinning material liquid The long-term stability of concentration and viscosity provides a guarantee for the long-term, continuous operation and industrial application of the "spiral" electrospinning equipment

Method used

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  • Synchronous circulation type spiral sealing belt device for electrostatic spinning
  • Synchronous circulation type spiral sealing belt device for electrostatic spinning
  • Synchronous circulation type spiral sealing belt device for electrostatic spinning

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Embodiment Construction

[0035] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0036] The following examples adopt the spinning equipment as a spiral electrospinning equipment, the spinning feed liquid is PVDF of 12% w / v, the molecular weight of PVdF is 500,000, and the viscosity range of the spinning feed liquid is 1100 ± 50cP; The solution is prepared by adding PVDF powder into a mixed solvent of acetone and DMF, keeping the temperature at 25°C, and fully stirring for 12 hours;

[0037] The relevant dimensions of the selected feed liquid tank 700 and the spiral electrode 600 are as follows:

[0038] (1) the length L1=500mm of the spiral electrode 600; (2) the pitch P=100mm of the spiral electrode; (3) the spiral blade diameter of the spiral electrode (4) The spiral blade thickness D1=3mm of the spiral electrode; (5) The rotating speed W of the spiral electrode 1 =6 (rev / min); the length L2=600mm of the feed liquid tank 700; th...

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Abstract

The invention provides a synchronous circulation type spiral sealing belt device for electrostatic spinning. The synchronous circulation type spiral sealing belt device consists of an annular sealing belt, a linear guide rail, a driving system, a synchronous controller and a support frame table, wherein the annular sealing belt is a closed annular belt driven to rotate by the driving system, a plurality of threaded holes with uniform spaces are distributed in the closed annular belt, the partial annular sealing belt is clamped in the linear guide rail and simultaneously forms a box body space with a material liquid groove, a blade of a spiral electrode arranged in the material liquid groove correspondingly passes through the threaded hole formed in the annular sealing belt to be exposed out of the box body space, and the linear speed of the annular sealing belt maintains constancy with the linear speed of the spiral electrode through being controlled by the synchronous controller. The synchronous circulation type spiral sealing belt device has the advantages that the spiral electrode rotation can be realized, meanwhile, the inside of the box body space can be sealed to a great degree, the fast volatilization of spinning material liquid in the material liquid groove can be effectively inhabited, the long-time stability of the spinning material liquid in the material liquid groove can be favorably realized, and the guarantee is provided for the long-time and continuous operation and industrialized application of the spiral electrostatic spinning equipment.

Description

technical field [0001] The invention relates to a synchronous circulation type spiral sealing belt device in the field of electrospinning, that is, it relates to a device that can seal the feed liquid tank 700 under the condition of synchronous movement with the spiral electrode, and can effectively suppress the solvent in the feed liquid tank Volatilization can avoid the change of spinning solution viscosity caused by solvent volatilization and the resulting decrease in fiber quality or the termination of spinning process; Preparation of nanofibers. technical background [0002] Electrospinning technology is a technology that uses electrostatic field force to produce nanofiber materials, which has been widely studied at home and abroad in recent years. The main process principle is: under the action of a high-voltage electrostatic field, the pendant small droplet at the capillary mouth emits a fine jet from the top under the action of electrostatic force. When the jet is f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01D5/00
CPCD01D5/0061
Inventor 刘千祥
Owner 麦克斯(广东)纳米科技有限公司
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