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Centrifugal needle-free electrostatic spinning device

An electrospinning, needle-free technology, applied in textiles and papermaking, filament/thread forming, feeding solution to the spinneret, etc., to improve product quality, reduce power consumption, and reduce production costs.

Active Publication Date: 2012-12-19
重庆中纳科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the deficiencies in the prior art, the technical problem to be solved by the present invention is to provide a centrifugal needle-free electrospinning device, which can be used for large-scale production of nanofibers and can effectively improve the stability of the electrospinning process , the obtained nanofiber fineness and product uniformity are good, the output scale can meet the actual needs, and the required spinning voltage is low, the equipment structure is relatively simple, and there is no problem of spinneret hole clogging and cleaning

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Centrifugal needle-free electrostatic spinning device
  • Centrifugal needle-free electrostatic spinning device
  • Centrifugal needle-free electrostatic spinning device

Examples

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Embodiment 1

[0033] Polyvinyl alcohol (PVA) aqueous solution was used for electrospinning. The degree of polymerization of PVA was 1700, the degree of alcoholysis was 99mol%, and the molecular weight was 74800. The spinning solution was prepared by dissolving PVA powder in deionized water for 2 hours at 80°C and standing for 2 hours.

[0034] The receiving electrode 80 is a permeable thin-walled porous aluminum plate, and the base fabric 95 is a melt-blown non-woven fabric. Electrospinning setup (see figure 1 , 2 and 3) the diameter of the inner roller 45 of the spinning system is 200mm, and the rotating speed is 500rev / min; the diameter of the outer cylinder 65 is 300mm, and the synchronous linear motion speed of the inner roller 45 and the outer cylinder 65 along the width direction is 25m / min. min. Outer and inner convex nails 60 and 50 on the inner round roller 45 and outer cylinder 65 are rectangular cross-sections, and its height is 40mm, wherein the height of the outer convex nai...

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Abstract

The invention discloses a centrifugal needle-free electrostatic spinning device, which comprises a liquid supply system, a spinning system, a high-voltage electrostatic generation system, a power supply system, a receiving system, a transmission system and a control system. The device is characterized in that the spinning system mainly comprises an inner round roller, an outer cylinder and a center shaft; outer lugs are uniformly distributed on the outer surface of the inner round roller, and can be driven by the center shaft to rotate; the outer cylinder is a static or fixed thin-walled hollow cylinder; inner lugs are uniformly distributed on the inner surface of the outer cylinder; the outer cylinder with a proper shape and a proper dimension can be sleeved outside the inner round roller, the outer cylinder and the inner round roller can be coaxially assembled, the outer lugs of the inner round roller and the inner lugs of the outer cylinder can be staggered and embedded, and proper gaps are reserved; and in addition, 1 to 3 rows of spinning holes are axially and uniformly reserved in the highest upper surface of the outer cylinder.

Description

technical field [0001] The invention relates to electrostatic spinning technology, in particular to a centrifugal needleless electrostatic spinning device. Background technique [0002] Electrospinning technology is a method of using electrostatic field force as the driving force to draw polymer solution or melt to prepare nanofiber materials. It mainly consists of liquid feeding system, high voltage power supply, spinning system, receiving system, and delivery system. and control system. The principle of the process is that the polymer spinning solution fed to the needle or nozzle of the spinning system through the liquid feeding system first forms a Taylor cone under the action of a high-voltage electric field, and then is drawn into a spinning jet by the electric field force; due to the same charge The mutual repulsion of the spinning jet and the whipping instability of the spinning jet, the spinning jet is further split into numerous small droplets; in the process of mo...

Claims

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Application Information

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IPC IPC(8): D01D5/00D01D1/06
Inventor 刘延波张泽茹漆东岳马营陈威亚
Owner 重庆中纳科技有限公司
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