Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Atmosphere controllable static spinning device and industrial application thereof

An electrospinning and atmosphere technology, applied in the direction of climate sustainability, sustainable manufacturing/processing, rayon recycling, etc., can solve the problems of large solvent consumption, interference with laying, difficult industrialized large-scale production, etc., to increase raw materials and Types of solvents, stable environmental factors, and the effect of reducing unit cost

Inactive Publication Date: 2006-12-13
DONGHUA UNIV
View PDF0 Cites 37 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The traditional electrospinning method usually spins through one or two spinnerets under open conditions at room temperature, the yield is low, and the product quality is greatly affected by the environment
Many materials are difficult to prepare fiber products by dry electrostatic forming technology due to the limitation of environmental conditions
The product consumes a lot of solvent, and the production capacity is low, so it is difficult to carry out large-scale industrial production
Simply installing a sealing device outside the spinning device can reduce the influence of air flow disturbance, but it cannot overcome the influence of temperature and solvent concentration changes
Simple introduction of other atmospheres will disturb the laying due to the disturbance of the air flow, and the environment of each part will be different due to the uneven air flow, resulting in unstable product properties

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
  • Atmosphere controllable static spinning device and industrial application thereof
  • Atmosphere controllable static spinning device and industrial application thereof
  • Atmosphere controllable static spinning device and industrial application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] use as Figure 1 to Figure 5 The apparatus shown performs spinning. in:

[0059] The height of said electrospinning air chamber (8) is 1m;

[0060] The number of nozzles 6 is 10,000, the diameter of the nozzles is 1 μm, and the arrangement of the nozzles is circular.

[0061] The diameter of the diversion hole 808 is 50 mm, the opening ratio of the guide plate 809 is 40%, the diameter of the collecting hole 810 is 50 mm, and the opening ratio of the collecting plate 811 is 40%.

[0062] Compressed air is used at a temperature of 60° C., a relative humidity of 30%, and a pressure of 0.5 MPa. The linear velocity of the air in the electrospinning chamber 8 is 0.3 m / s, and the voltage is 15 KV.

[0063] Spinning material: a polyhydroxybutyric acid-hydroxyvaleric acid copolyester / chloroform solution with a mass percentage concentration of 1.5%wt; the supply flow rate is 1ml / h;

[0064] The spinning result is as follows, the average fiber diameter is 100nm, and the solven...

Embodiment 2

[0066] use as Figure 1 to Figure 5 The apparatus shown performs spinning. in:

[0067] The height of said electrospinning air chamber (8) is 0.7m;

[0068] There are 100 nozzles 6, the diameter of nozzles is 10mm, and the arrangement of nozzles is rhombus;

[0069] The diameter of the diversion hole 808 is 100mm, the opening ratio of the guide plate 809 is 70%, the diameter of the collecting hole 810 is 100mm, and the opening ratio of the collecting plate 811 is 70%.

[0070] Nitrogen is used, the temperature is 60° C., the relative humidity is 0%, the pressure is 0.8 MPa, the linear velocity of the air in the electrospinning chamber 8 is 0.2 m / s, and the voltage is 25 KV.

[0071] Spinning material: polym-phenylene isophthalamide / N, N-dimethylformamide solution with a mass percentage concentration of 10%wt, containing 2%wtCaCl 2 As an additive; the supply flow rate is 1.2ml / h;

[0072] The spinning conditions are air chamber height, atmosphere temperature 70°C, relative...

Embodiment 3

[0075] use as figure 1 The apparatus shown performs spinning. in:

[0076] The height of said electrospinning air chamber 8 is 0.8m;

[0077] There is one nozzle 6, the diameter of the nozzle is 100mm, and the arrangement of the nozzle is circular;

[0078] The diameter of the diversion hole 808 is 10 mm, the opening ratio of the guide plate 809 is 40%, the diameter of the collecting hole 810 is 50 mm, and the opening ratio of the collecting plate 811 is 40%.

[0079] Compressed air is used at a temperature of 60° C., a relative humidity of 30%, and a pressure of 0.8 MPa. The linear velocity of the air in the electrospinning chamber 8 is 2 m / s, and the voltage is 25 KV.

[0080] Spinning material: mass percentage concentration is 8%wt silk protein / water solution, contains 40%wtZnCl 2 As an additive; the supply flow rate is 1.5ml / h;

[0081] The fibers are collected by a reciprocating drum collection device, and the spinning results are as follows: the average fiber diamet...

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

PropertyMeasurementUnit
Apertureaaaaaaaaaa
Fiber average diameteraaaaaaaaaa
Fiber average diameteraaaaaaaaaa
Login to View More

Abstract

The invention discloses an atmospherecontrolled electrostatic spinning apparatus and its industry application, and the said electrostatic spinning apparatus includes statitron (1) with material chamber(3) of prograding piston (301), incubator (4), blow head (6), electrostatic spinning surgetank (8), receiver (9), high-voltage electrostatic field electrode and material dispatcher(5) installed in incubator (4). The invention improves the electrostatic spinning method and largely improves the spinning rate by adopting a plurality of spray caps, and the invention can distinctively improve the quality of the electrostatic shaped article, control the solvent volatilization speed, stabilize the environmental factor in electrostatic forming process, increase the raw material and solvent species used for electrostatic figuration and improve the electrostatic spinning deliverability. The invention extremely reduces the unit cost of the electrostatic spinning and widens the application foreground.

Description

technical field [0001] The invention relates to an electrostatic spinning device and its industrial application. Background technique [0002] Electrospinning uses the action of a high-voltage electrostatic field on a liquid to stretch the liquid into a thin stream, which is volatilized or solidified by the solvent to obtain fibers. The fibers and their non-woven fabrics obtained by this method are characterized by small diameters, usually between a few nanometers and tens of microns. [0003] The traditional electrospinning method usually spins through one or two spinnerets under open conditions at room temperature, the yield is low, and the product quality is greatly affected by the environment. Many materials are difficult to prepare fiber products by dry electrostatic forming technology due to the limitation of environmental conditions. The solvent consumption of the product is large, the production capacity is low, and it is difficult to carry out large-scale industri...

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): D01D5/00D01F6/22D01F6/62D01F2/00D01F4/00D01F6/58D01F6/14D01F9/04
CPCD01D5/0076D01F13/00D01D4/06D01D5/0061Y02P70/62
Inventor 陈彦模俞昊张瑜张锴
Owner DONGHUA UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com