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High-voltage electrostatic shuttle nano spinning device

A high-voltage electrostatic and nano-spinning technology, applied in textiles and papermaking, filament/thread forming, fiber processing, etc., can solve problems such as complex equipment structure, high cost and energy consumption, and difficult maintenance

Active Publication Date: 2011-05-25
盐城大数据资产经营管理有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, its electrospinning solution is in an open system of a spinning tank, which is easily affected by the air flow, temperature and humidity of the environment, and has problems such as complex equipment structure, cumbersome cleaning, difficult maintenance, high cost and energy consumption.
In addition, the production of this equipment has a single product, and one equipment can only produce one kind of product, which not only limits the development of nanofiber products, but also seriously affects its industrial application process.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Add 4g of polyvinylpyrrolidone (PVP, molecular weight: 1,300,000) to 96g of ethanol, and dissolve it with magnetic stirring at room temperature for 2 hours to obtain an electrospinning solution; then add the obtained electrospinning solution to the In the storage tank 8 in the body 15, adjust the electric thermostat 13 to make the temperature and humidity in the casing 15 reach 25° C. and 30% RH respectively, and stabilize for 20 minutes. Open the valve 9 to allow the spinning solution to flow into the liquid storage chamber 3 through the feed pipe 10 and the tubular metal support 12. The electrostatic shed 4 is a slit of 14mm (long) * 0.5mm (wide). The electrostatic shed 4 and The distance between the polypropylene non-woven fabric receiving substrates 61 on the stainless steel receiving plate 62 is 120mm. When the electrospinning solution flows out of the edge of the electrostatic shed 4, the high-voltage electrostatic generator 1 is turned on and slowly adjusted to 3...

Embodiment 2

[0031]Add 4g of polyvinylpyrrolidone (PVP, molecular weight: 1,300,000) to 96g of ethanol, and dissolve it with magnetic stirring at room temperature for 2 hours to obtain an electrospinning solution; add the obtained electrospinning solution to the casing 15 In the storage tank 8 inside. Adjust the temperature and humidity in the box to 25°C and 30%RH respectively, and stabilize for 20 minutes. Open the valve 9 to allow the spinning solution to flow into the liquid storage chamber 3 through the feed pipe 10 and the tubular metal support 12. The size of the electrostatic shed 4 is 14mm (length) × 0.5mm (width). The distance between the shed and the polypropylene non-woven substrate of the receiving plate is 120 mm. When liquid flows out of the edge of the shed, turn on the high-voltage electrostatic generator 1 and slowly adjust it to 40kV. At this time, jets appear and split, and PVP nanofiber non-woven fabrics are formed on the substrate, the spinning efficiency is 0.035g / ...

Embodiment 3

[0033] Add 4g of polyvinylpyrrolidone (PVP, molecular weight: 1,300,000) into 96g of ethanol, and dissolve it for 2 hours at room temperature using magnetic stirring to obtain an electrospinning solution; In tank 8. Adjust the temperature and humidity in the box to 25°C and 30%RH respectively, and stabilize for 20 minutes. Open the valve 9 to allow the spinning solution to flow into the liquid storage chamber 3 through the feed pipe 10 and the tubular metal support 12. The size of the electrostatic shed 4 is 14mm (length) × 0.5mm (width). The distance between the shed and the polypropylene non-woven substrate of the receiving plate is 380mm. When liquid flows out of the edge of the shed, turn on the high-voltage electrostatic generator 1 and slowly adjust it to 70kV. At this time, jets appear and split, and PVP nanofiber non-woven fabrics are formed on the substrate, the spinning efficiency is 0.07g / min, the average diameter is 600nm, and the surface density is 26g / m 2 ,See...

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Abstract

The invention relates to a high-voltage electrostatic shuttle nano spinning device, which consists of a box, a storage tank, a valve, an electrostatic shuttle, a supply pipe, a return pipe, an overflow material recycling tank, an electric thermostat, a metal bracket, a receiving device, a receiving substrate and a high-voltage electrostatic generator, wherein the electrostatic shuttle comprises a shuttle sleeve and a shuttle core; and the shuttle core consists of a liquid storage cavity, an electrostatic shuttle mouth and a metal high-voltage electrode. The electrostatic shuttle is arranged, so that an enclosed spinning system is formed and a solvent is prevented from volatilizing; in the presence of the electric thermostat, the system is not influenced by the environment (temperature / humidity); the size of the shutter core and voltage can be adjusted, so that the diameter of nanofiber is adjustable and the breadth of a non-woven fabric can be selected optionally; moreover, due to the adoption of differential-pressure material supply and insert assembly, the electrostatic shutter mouth spinning device has the advantages of low energy consumption, low cost and environmental friendliness, is easy to clean, is safe and reliable, is easy and convenient to operate, and the like. A plurality of electrostatic shuttle mouths are connected in series and in parallel. The high-voltage electrostatic shuttle nano spinning device can be applied to laboratories, pilot plant tests and industrial production.

Description

technical field [0001] The invention belongs to the technical field of electrostatic spinning, and in particular relates to a high-voltage electrostatic shed nano-spinning device. Background technique [0002] Electrospinning technology is a technology in which non-Newtonian fluids generate jets under high-voltage electrostatic fields to form micron or even nanofibers. It is the most direct method that can be used to prepare organic, inorganic and composite nanofibers. Since electrospun nanofibers have good application prospects in many fields such as filtration, medicine, environment, tissue engineering, devices, catalysis, and military affairs, the research on electrospinning equipment has recently become one of the hot issues of global scholars. [0003] At present, there are three main forms of electrospinning equipment for mass production of nanofibers: multi-nozzle type, multi-tube type, and roller type electrospinning method. The multi-nozzle type is a combination of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01D13/00D01D5/00
Inventor 张靓金昌显
Owner 盐城大数据资产经营管理有限公司
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