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High voltage static power 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 the problems of discontinuous spinning and reduce the mechanical strength of nanofibers

Active Publication Date: 2014-07-02
盐城迈迪科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the rotation of the launching roller and the sliding of the feeding module during the spinning process, resulting in discontinuous spinning, the long nanofibers become short fibers, which reduces the mechanical strength of the nanofibers.

Method used

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  • High voltage static power shuttle nano-spinning device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Add 3 g of polyethylene terephthalate (PET, molecular weight: 25000) pellets to 24 ml of trifluoroacetic acid (F 3 CHCOOH) and 6ml dichloromethane (CH 2 Cl 2 ) in a mixed solution with a volume ratio of 4:1, and dissolved with magnetic stirring at room temperature for 2 hours to obtain an electrospinning solution; add 10 ml of the obtained electrospinning solution to the storage tank (5) . Adjust the electronically controlled thermostat in the box, and the temperature and humidity will reach 25°C and 30RH% respectively, and stabilize for 2 minutes. Turn on the high-voltage electrostatic generator (11), the positive pressure power pump (7), and the cavitation machine (8), and slowly adjust the voltage to 80 kV; the height of the receiving plate is 33.5 cm. At this time, a jet appeared on the surface of the spinneret (1), and splitting occurred, and PET nanofiber non-woven fabric was formed on the receiving substrate, and the spinning was completed within 5 minutes, an...

Embodiment 2

[0023]Add 6 g of polyethylene terephthalate (PET, molecular weight: 25000) pellets to 24 ml of trifluoroacetic acid (F 3 CHCOOH) and 6ml dichloromethane (CH 2 Cl 2 ) in a mixed solution with a volume ratio of 4:1, and dissolved with magnetic stirring at room temperature for 2 hours to obtain an electrospinning solution; 10 ml of the obtained electrospinning solution was added to the storage tank (5). Adjust the electronically controlled thermostat in the box, and the temperature and humidity will reach 25°C and 30RH% respectively, and stabilize for 2 minutes. Turn on the high-voltage electrostatic generator (11), positive pressure power pump (7), and cavitation machine (8), and slowly adjust the voltage to 80kV; the height of the receiving plate is 33.5cm. At this time, a jet flow appears on the surface of the spinneret (1), and splitting occurs, and PET nanofiber non-woven fabric is formed on the receiving substrate, and the spinning is completed within 5 minutes, and the s...

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Abstract

The invention relates to a high voltage static power shuttle nano-spinning device. The device is composed of a spinneret nozzle, a liquid storage cavity, a metal valve needle, an adjusting cap, a liquid supply tank, a multifunctional high voltage static generator, a cavitation machine, a cavitation machine deckle rod, a positive pressure power pump, a positive pressure power pipe, a siphon type feed pipe, a net structure electrode, a receiving substrate, an unwinding roller, a winding roller, nanofiber, a constant temperature system, a ventilating system, an illuminating system and an environment isolation box. A high voltage static power shuttle body is formed by the spinneret nozzle, the liquid storage cavity, the metal valve needle, the adjusting cap and a shell. A high voltage static power shuttle is jointly formed by the spinneret nozzle, the liquid storage cavity, the metal valve needle, the adjusting cap, the shell, the multifunctional high voltage static generator, a liquid storage tank, the siphon type feed pipe, the positive pressure power pipe, the cavitation machine, the cavitation machine deckle rod, an output line, the ventilating system, the illuminating system, a humidity and temperature regulator and the box. Through the establishment of the high voltage static power shuttle and the adjustment of the size of the spinneret nozzle, the static field intensity, the pressure and the frequency of the cavitation machine, the spinning speed and the diameter of the nanofiber can be adjusted, and the high voltage static power shuttle nano-spinning device has the advantages of being high in spinning efficiency, free of blocking, easy to clean, safe, reliable, easy and convenient to operate, environmentally friendly and the like.

Description

technical field [0001] The invention belongs to the technical field of electrostatic spinning, and in particular relates to a high-voltage electrostatic power shuttle 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. Because electrospun nanofibers have good application prospects in many fields such as filtration, medicine, environment, tissue engineering, electronics, catalysis, sound absorption, and military affairs, the research on electrospinning equipment has recently become the focus of many scholars and engineering technicians around the world. One of the hot issues of personnel. [0003] At present, the electrospinning equipment for preparing nanofibers in the laboratory mainly has the following forms: poi...

Claims

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Application Information

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IPC IPC(8): D01D5/00
Inventor 金昌显
Owner 盐城迈迪科技有限公司
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