Unlock instant, AI-driven research and patent intelligence for your innovation.

Device and method for multi-jet electrostatic spinning of high-viscosity polymer melts

A technology of melt electrospinning and high-viscosity polymers, which is applied in textiles and papermaking, filament/thread forming, fiber processing, etc. It can solve the problems of low efficiency and achieve the effect of simple device, easy operation and increased output

Active Publication Date: 2013-12-18
BEIJING UNIV OF CHEM TECH
View PDF7 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the axial wrapping effect is to squeeze the melt molecules upward along the axial direction, this device does not make full use of this principle, and a single nozzle can only form a single jet, which is less efficient

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Device and method for multi-jet electrostatic spinning of high-viscosity polymer melts
  • Device and method for multi-jet electrostatic spinning of high-viscosity polymer melts
  • Device and method for multi-jet electrostatic spinning of high-viscosity polymer melts

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] The present invention is a melt electrospinning device for high-viscosity polymer multi-jet flow, such as Figure 1-4 As shown, it is composed of four parts: the driving part, the spinning part, the receiving part, and the exhaust part, and they are placed in order from bottom to top. The driving part is composed of a ring magnet piece 14, a tray 15, a rotating motor 16, a tooth-shaped lower edge 17 and a bar magnet piece. The ring magnet piece 14 is glued to the tray 15 and connected with the rotating motor 16. Below the heat layer 9, the tooth-shaped lower edge 17 is located at the lower end of the rotary spinning rod 5, and a bar-shaped magnet sheet 18 is pasted on its hypotenuse, and the magnetic properties of the bar-shaped magnet sheet 18 and the ring-shaped magnet sheet 14 are the same. When the rotary motor 16 rotated, the tray 15 rotated together with the annular magnet sheet 14, and the repulsive force between the annular magnet sheet 14 and the bar magnet she...

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
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a device and a method for multi-jet electrostatic spinning of high-viscosity polymer melts. The device mainly comprises a drive unit, a spinning unit, a receiving unit and an exhaust unit which are arranged from bottom to top. The drive unit consists of a circular magnet sheet, a support plate, a rotary motor, a toothed lower edge and magnet strips, wherein the circular magnet sheet is bonded to the support plate that is connected with the rotary motor, and the magnet strips are bonded to bevels of the toothed lower edge of a rotary spinning rod. The higher the viscosity of the polymer melts, the more remarkable the pole jumping effect caused by rotation of the rotary spinning rod is, the easier the lifting of the polymer melts along the rotary spinning rod is, the much the jet at the upper edge of the rotary spinning rod is, and the higher the output of fibers is. The device is simple and easy to operate. Multiple jets can be generated by the aid of the rotary spinning rod so that the output is increased. Since integrated spinning is achieved by multiple jets generated through the rotary spinning rod, polymer fibers can be produced in batch.

Description

technical field [0001] The invention relates to a polymer melt electrospinning device and method, in particular to a melt electrospinning device and method for high-viscosity polymer multi-jet flow, belonging to the field of electrospinning. Background technique [0002] Polymer melts with low viscosity are commonly used in industry, and the melt electrospinning method can prepare ultra-fine fibers with good quality, but for high-viscosity polymer melts, it is easy to block the nozzle during the spinning process. The filament head is not easy to form a jet, which affects the spinning efficiency and quality. [0003] The polymer melt has an elastic rheological effect called the axial wrapping effect. The reason is that the molecular chain is stretched and wound on the axis due to the high linear velocity of the fluid near the surface of the rotating shaft. Oriented molecules tend to spontaneously return to the coiled conformation, but this elastic recovery is limited by the ...

Claims

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
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): D01D5/00D01D5/40
Inventor 杨卫民马帅李好义刘泽琳阎华丁玉梅
Owner BEIJING UNIV OF CHEM TECH
PatSnap Eureka logo

PatSnap Eureka turns technology decisions into work you can execute. Powered by our Innovation Knowledge Graph, it runs expert workflows across engineering, life sciences, materials and intellectual property. Get your review-ready output in minutes.

X (Twitter)LinkedInYouTubeSubstack

© 2026 PatSnap. All rights reserved. 

Terms of Service

 | 

Privacy policy

 | 

Modern Slavery Act Transparency Statement