CN102191569A - Parallel-electric-field electrostatic spinner - Google Patents
Parallel-electric-field electrostatic spinner Download PDFInfo
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- CN102191569A CN102191569A CN2010101251117A CN201010125111A CN102191569A CN 102191569 A CN102191569 A CN 102191569A CN 2010101251117 A CN2010101251117 A CN 2010101251117A CN 201010125111 A CN201010125111 A CN 201010125111A CN 102191569 A CN102191569 A CN 102191569A
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- parallel
- plate
- receiving system
- electric field
- nozzle
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Abstract
The invention discloses a parallel-electric-field electrostatic spinner, belonging to the field of electrostatic spinning. The parallel-electric-field electrostatic spinner comprises a receiver, a nozzle, a sprayer, parallel plates, a heating coil, a charging barrel, a piston shaft, an end cover, screws, a temperature sensor and a high-voltage static generator, wherein the shape of the parallel plates is identical to that of the receiver, and the parallel plates are parallel to the receiver. By using the parallel-electric-field electrostatic spinner, a uniform electric field can be formed in the spinning region, so that the dithering degree of the spun fibers in the electric field is lowered, and the falling trajectory of the spun fibers is more stable.
Description
Technical field
The present invention relates to a kind of electrostatic spinning apparatus, belong to the electrostatic spinning field.
Background technology
Along with the intensification of nanometer technology, electrospinning process can be prepared nano level fiber and becomes one of current research focus owing to it.Electrospinning process has been acknowledged as the simplest effective method of preparation nanofiber, and existing at present 30 multiple polymers successfully make superfine fibre by the method, and minimum diameter reaches tens nanometers.About the result of study of electrostatic spinning, pertinent literature all is index over the years increases.
The principle of electrostatic spinning forms electric field between the two by applying high voltage between shower nozzle and receiving system, making exactly, and polarized melt or solution are ejected on the dash receiver under the electric field force effect, form ultra-fine fiber.But present existing electrostatic spinning apparatus, its electric field form all is to adopt very little nozzle of relative area or capillary and the very big receiving system of relative area to form, the uniformity of this electric field and systematicness are all not good enough, therefore make the suffered electric field force inequality of spun silk, it is moving that random whip takes place dropping process, the fiber path poor controllability, thus the difficulty of orderly reception is strengthened.
Summary of the invention
A kind of parallel electric field electrostatic spinning apparatus that the present invention proposes, it is realized with the on all four parallel-plate of receiving system shape by add one on nozzle, thereby adjust the spinning electric field effectively, the uniformity and the regularity of electric field are significantly improved, make spun fiber be subjected to more uniform electric field force, thereby the whip that effectively reduces spinning fibre is moving, makes the whereabouts track of spinning fibre more stable.
The invention provides a kind of electrostatic spinning apparatus that can produce parallel electric field, it mainly comprises receiving system, nozzle, shower nozzle, parallel-plate, heating collar, barrel, the axis of the piston, end cap, screw, temperature sensor and HV generator; Wherein, the shape of parallel-plate and receiving system is identical, and during installation, both are parallel relatively, and producing uniform electric field, the shape of parallel-plate and receiving system can be circular, square, triangle and polygon arbitrarily; The positive pole of receiving system and high voltage source joins, parallel-plate ground connection; Parallel-plate and barrel adopt four to be connected at circumferential equally distributed screw, and both also can directly adopt and be threaded; Nozzle and shower nozzle adopt cone match; Nozzle directly is connected with barrel by screw thread, also can connect by circumferential equally distributed screw; The axis of the piston can move up and down in barrel and can not produce Lou material; The axis of the piston adopts with end cap and is threaded, and also can be processed into one.
The present invention is suitable for the electrostatic spinning of polymer melt or solution, and spinning material can be polymer particles pellet or powder or section or melt or solution.Receiving system can be taked various ways such as conducting plate and conductive mesh.The output of HV generator is very anodal.
Description of drawings
Fig. 1 is the schematic diagram of a kind of parallel electric field electrostatic spinning apparatus of the present invention
Among the figure: 1-receiving system 2-parallel-plate 3-heating collar 4-barrel 5-the axis of the piston 6-end cap 7-temperature sensor 8-nozzle 9-screw 10-shower nozzle 11-HV generator
The specific embodiment
The present invention, a kind of electrostatic spinning apparatus that can produce parallel electric field, take device schematic diagram as shown in Figure 1, it mainly comprises receiving system 1, can produce high-tension HV generator 11 and receiving system 1 parallel installation, size, the on all four parallel utmost point 2 of shape, the screw 9 that connects parallel-plate 2 and barrel 4, take the shower nozzle 10 of cone match with nozzle 8, with barrel 4 take to be threaded can be for convenience detach nozzle 8, be used for the heating collar 3 of material heating, the barrel 4 of steel construction, can in barrel 4, move up and down and can not produce the Lou the axis of the piston 5 of material, end cap 6, temperature sensor 7.
Spinning step: at first,, barrel 7 is heated to preset temperature by heating collar 3.Add spinning material for 7 li toward barrel after reaching temperature, by the time material fusion, during melt droplets that shower nozzle 10 occurs being about to come off, open the power switch of HV generator 11, the output voltage of power supply is since 0 past the rise, until the melt droplets of shower nozzle 10 ends is out of shape and is ejected till the filament.The melt silk cools off in motion process, is pooled on the receiving system 1.The melt thread that ejects, the stretching through electric field can form ultra-fine fiber at last.
Among the present invention, other spinning conditions are constant, and the size that only changes dash receiver and parallel-plate compares experiment.When both sizes were the square plate of 100mm * 100mm, a spot of skew still, still can take place than traditional point-to-area receive mode rule in the spinning path; When receiving system and parallel-plate size were 150mm * 150mm, still there was skew in the spinning path, illustrates between the two to form regular especially electric field; When both sizes being become 200mm * 200mm, can observe in the fiber vertical drop of spinning zone.Therefore explanation, the shape of receiving system and parallel-plate is in full accord, can effectively improve the electric field regularity; Experiment finds that the interference of other metal objects forms regular electric field in the spinning zone around just can ignoring substantially, makes the fiber descent path vertically even, reduces the difficulty of reception in order when the long size of square edges of boards 〉=200mm.Apply that the object around the spinning field can be a conductive material behind the parallel-plate, can not produce obviously and disturb parallel electric field.
One embodiment of the present of invention: spinning material is a polypropylene granules, and spinning temperature is set to 230 ℃.Spinning voltage is 0～80kv, and receiving system 1 and parallel-plate 2 are conductive mesh, and both sizes are the square plate of 200mm * 200mm, the outlet of shower nozzle 10 bottom melts and receiving system 1 apart from 20cm.Fiber vertically falls, and the path is stable.
Claims (3)
1. a parallel electric field electrostatic spinning apparatus is characterized in that: mainly comprise receiving system (1), nozzle (8), shower nozzle (10), parallel-plate (2), heating collar (3), barrel (4), the axis of the piston (5), end cap (6), screw (9), temperature sensor (7) and HV generator (11); Wherein, parallel-plate (2) is identical with the shape of receiving system (1), and both are parallel relatively; Receiving system (1) joins parallel-plate (2) ground connection with the positive pole of HV generator (11); Parallel-plate (2) adopts screw (9) to be connected with barrel (4); Nozzle (8) adopts cone match with shower nozzle (10); Nozzle (8) is connected with barrel (4) by screw thread; The axis of the piston (5) can move up and down in barrel (4); The axis of the piston (5) is connected with end cap (6).
2. a kind of parallel electric field electrostatic spinning apparatus according to claim 1 is characterized in that receiving system (1) is conducting plate or conductive mesh.
3. a kind of parallel electric field electrostatic spinning apparatus according to claim 1 is characterized in that, the shape of parallel-plate (2) and receiving system (1) can be circular or square or triangle or polygon arbitrarily.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010125111 CN102191569B (en) | 2010-03-16 | 2010-03-16 | Parallel-electric-field electrostatic spinner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010125111 CN102191569B (en) | 2010-03-16 | 2010-03-16 | Parallel-electric-field electrostatic spinner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102191569A true CN102191569A (en) | 2011-09-21 |
| CN102191569B CN102191569B (en) | 2013-06-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010125111 Expired - Fee Related CN102191569B (en) | 2010-03-16 | 2010-03-16 | Parallel-electric-field electrostatic spinner |
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| Country | Link |
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| CN (1) | CN102191569B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103668482A (en) * | 2013-10-12 | 2014-03-26 | 东华大学 | Multi-jet-flow electrostatic spinning sprayer with uniformly distributed electric fields |
| CN103789874A (en) * | 2014-01-23 | 2014-05-14 | 北京化工大学常州先进材料研究院 | Method for preparing polyelectrolyte nano fibers in core-shell structures by parallel electric field inductive phase separation method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5024789A (en) * | 1988-10-13 | 1991-06-18 | Ethicon, Inc. | Method and apparatus for manufacturing electrostatically spun structure |
| US20020089094A1 (en) * | 2001-01-10 | 2002-07-11 | James Kleinmeyer | Electro spinning of submicron diameter polymer filaments |
| CN101429681A (en) * | 2007-11-07 | 2009-05-13 | 北京化工大学 | Magnetic field aided polymer melt electrostatic spinning device |
| CN201367496Y (en) * | 2009-02-25 | 2009-12-23 | 北京化工大学 | Device for producing composite fiber by utilizing melt electrostatic spinning |
| WO2009156822A1 (en) * | 2008-06-24 | 2009-12-30 | Stellenbosch University | Method and apparatus for the production of fine fibres |
-
2010
- 2010-03-16 CN CN 201010125111 patent/CN102191569B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5024789A (en) * | 1988-10-13 | 1991-06-18 | Ethicon, Inc. | Method and apparatus for manufacturing electrostatically spun structure |
| US20020089094A1 (en) * | 2001-01-10 | 2002-07-11 | James Kleinmeyer | Electro spinning of submicron diameter polymer filaments |
| CN101429681A (en) * | 2007-11-07 | 2009-05-13 | 北京化工大学 | Magnetic field aided polymer melt electrostatic spinning device |
| WO2009156822A1 (en) * | 2008-06-24 | 2009-12-30 | Stellenbosch University | Method and apparatus for the production of fine fibres |
| CN201367496Y (en) * | 2009-02-25 | 2009-12-23 | 北京化工大学 | Device for producing composite fiber by utilizing melt electrostatic spinning |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103668482A (en) * | 2013-10-12 | 2014-03-26 | 东华大学 | Multi-jet-flow electrostatic spinning sprayer with uniformly distributed electric fields |
| CN103789874A (en) * | 2014-01-23 | 2014-05-14 | 北京化工大学常州先进材料研究院 | Method for preparing polyelectrolyte nano fibers in core-shell structures by parallel electric field inductive phase separation method |
| CN103789874B (en) * | 2014-01-23 | 2016-02-10 | 北京化工大学常州先进材料研究院 | Parallel electric field induction phase separation method prepares nucleocapsid structure natural polyelectrolyte nanofiber |
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| Publication number | Publication date |
|---|---|
| CN102191569B (en) | 2013-06-05 |
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