CN201367496Y - Device for producing composite fiber by utilizing melt electrostatic spinning - Google Patents
Device for producing composite fiber by utilizing melt electrostatic spinning Download PDFInfo
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- CN201367496Y CN201367496Y CNU2009201058803U CN200920105880U CN201367496Y CN 201367496 Y CN201367496 Y CN 201367496Y CN U2009201058803 U CNU2009201058803 U CN U2009201058803U CN 200920105880 U CN200920105880 U CN 200920105880U CN 201367496 Y CN201367496 Y CN 201367496Y
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Abstract
The utility model provides a device for producing composite fiber by utilizing melt electrostatic spinning, which belongs to electrostatic spinning field. The device mainly comprises a receiving device, a collecting device, a capillary tube, a nozzle, a heating ring, a material cylinder, a piston shaft, a pressure device, an end cover, a temperature sensor and a high pressure electrostatic generator; the receiving device is arranged under the capillary tube and is connected with the anode of the high pressure electrostatic generator, the other electrode of the high pressure electrostatic generator is in grounding connection, the capillary tube is in conical tight fit with the collecting device and is connected with ground through lead-out wire, the nozzle is connected with the collecting device and the material cylinder through screws, the heating ring is wrapped on the surface of the material cylinder, the temperature sensor is in screwed connection with the material cylinder, the end cover is in screwed connection with the piston shaft, the pressure device is positioned above the end cover, the distance between the melt outlet of the capillary tube and the receiving device is more than 2 cm. the utility model can perform melt spinning on two types of multiple polymers to produce bilateral or sheath core composite fiber.
Description
Technical field
The utility model relates to a kind of device of producing composite fibre, belongs to the electrostatic spinning field.
Background technology
Along with the continuous increase of people to the nanofiber demand, the researcher of various countries has been explored the multiple method for preparing nanofiber, wherein electrospinning process is considered to prepare the simple effective method of nanofiber, at present existing 30 multiple polymers successfully make superfine fibre by the method, and the diameter minimum can reach tens nanometers.Electrostatic spinning comprises solution electrostatic spinning and melt electrostatic spinning two classes.Research about electrostatic spinning all concentrates on the solution electrostatic spinning mostly, for the research of polymer melt electrostatic spinning then seldom.
For satisfied powerful stretching, electricity are led, functional requirements such as light conducts, moisture absorption, people have developed multicomponent fibre.Modal in the composite fibre is bicomponent fiber (BicomponentFiber), and it may be defined as on same fiber, to the composite fibre that exists two kinds of different polymer simultaneously, also claims conjugate fibre (Conjugated Fiber) along fiber axis.The main purpose of producing bicomponent fiber is compound two kinds of polymer properties, make composite can show one-component mechanical property, function, style and the texture that can not obtain.Electrostatic spinning is the simplest direct method for preparing continuous fibers, and at present, the method for producing composite fibre has a lot, but does not see as yet with the open report of melt electrostatic spinning method production composite fibre.
The utility model content
The utility model proposes a kind of device of producing composite fibers through melt-electrospinning.The utility model not be owing to need just can carry out spinning smoothly by solvent, thereby can solve a series of problems that the solution electrostatic spinning occurs owing to the use solvent.The utility model combines the method for the method of electrostatic spinning and production composite fibre, can carry out melt spinning to two or more polymer simultaneously, to make the composite fibre of parallel type or core-skin type or other structure type, satisfy people to the various performance demands of fiber.
The technical scheme of the device of a kind of producing composite fibers through melt-electrospinning that the utility model provides has adopted the melt electrostatic spinning device of being made up of receiving system, aggregating apparatus, capillary, nozzle, heating collar, barrel, the axis of the piston, pressue device, end cap, temperature sensor, HV generator etc.Receiving system is positioned under the capillary, and receiving system connects the cathode output end of HV generator, another electrode grounding of HV generator.Aggregating apparatus can will pool together from the polymer melt of different barrels, evenly flows out through capillary.Capillary and aggregating apparatus are taked conical surface tight fit, and capillary is by drawing lead and the earth joins.Nozzle adopts screw to be connected with aggregating apparatus.Nozzle is connected at the uniform screw of circumferencial direction by 4 with barrel, and nozzle also can directly wait other connected mode or both to be processed into one with barrel by being threaded.The Electrothermal ring that is used for heated polymerizable thing melt is coated on the barrel surface.Temperature sensor adopts with barrel and is threaded.End cap adopts with the axis of the piston and is threaded, or both are processed into one.The axis of the piston can pump in barrel.Pressue device is placed on directly over the end cap.
The utility model is suitable for two or more polymer melts and carries out electrostatic spinning simultaneously, with the preparation composite fibre.Polymer can be thermoplastics such as polyethylene, polypropylene, polyamide, polyether-ether-ketone, polyphenylene sulfide, and spinning material can be polymer particles pellet or powder or section or melt.Receiving system can be taked various ways such as conducting plate, conductive mesh, reel etc.Conductive materials such as capillary employing metal are made, and its internal diameter is less than 1mm.Pressue device can be exerted pressure or adopts micro-propeller to exert pressure by the mode that adds counterweight.The output of HV generator is very anodal.
The utility model can prepare the composite fibre of parallel type, core-skin type or other different structure form according to the structure of aggregating apparatus.Aggregating apparatus is made up of two parts up and down, and two parts adopt the screw connection up and down.Adopt tight fit to be connected between the top of core-sheath compound fibre spinning aggregating apparatus and the conduit.
The method of the producing composite fibers through melt-electrospinning that the utility model proposes can be prepared ganoid superfine composite fiber, and makes production technology obtain maximum simplification.
Description of drawings
Fig. 1 is a device schematic diagram of the present utility model.
Fig. 2 is a parallel composite fiber spinning aggregating apparatus schematic diagram.
Fig. 3 is a core-sheath compound fibre spinning aggregating apparatus schematic diagram.
Fig. 4 is the schematic top plan view of core-sheath compound fibre spinning aggregating apparatus the latter half.
1-receiving system among the figure; The 2-aggregating apparatus; The 3-capillary; The 4-nozzle; The 5-heating collar; The 6-barrel; The 7-the axis of the piston; The 8-pressue device; The 9-end cap; The 10-temperature sensor; The 11-HV generator; The 12-conduit.
The specific embodiment
What the utility model was taked is a kind of device of producing composite fibers through melt-electrospinning, schematic representation of apparatus as shown in Figure 1, it mainly comprises receiving system (1), aggregating apparatus (2), take the friction tight capillary of the conical surface (3) with aggregating apparatus (2), with barrel (6) take screw be connected can be for convenience detach nozzle (4), the heating collar (5) that is used for heated polymerizable thing melt, the barrel of steel construction (6), can in barrel (6), move up and down and can not produce the Lou the axis of the piston (7) of material, pressue device (8), the end cap (9) of carrying pressue device (8), temperature sensor (10), the HV generator (11) that output is very anodal.The melt outlet of capillary (3) and the distance of receiving system (1) are greater than 2cm.Aggregating apparatus shown in Figure 2 is used to produce the parallel type compound silk, and Fig. 3 and aggregating apparatus shown in Figure 4 are used to produce the core-skin type compound silk, flows through different polymer respectively with outer in the conduit (12).
Spinning step: at first barrel (6) is heated to preset temperature.The melt temperature of various polymer is all different, because polymer viscosity is the key factor whether electrostatic spinning can carry out smoothly, so need be arranged on the heating-up temperature of heating collar (5) more than the processing and forming temperature of polymer, reduce the viscosity of polymer as far as possible, decompose but be unlikely to make polymer to produce.Secondly in barrel, add spinning material; spinning material can be polymer beads or powder or section or melt; after raw material reaches design temperature, exert pressure on end cap (9), applied pressure should make capillary (3) end melt droplets occur but can't come off being advisable again.Open the power switch of HV generator (11) at last again, the output voltage of power supply forms till the filament until the melt droplets of capillary end becomes taper and ejects since 0 past the rise.Injection stream can be moved in the mode of screw line in electric field, and the melt silk cools off in motion process, is pooled to receiving system.From the melt thread that capillary ejects, the brute force stretching through electric field can form ultra-fine fiber at last.
Owing to do not use solvent, there is not the Evaporation Phenomenon of solvent in composite fibre by the utility model spins out, thereby can obtains the uniform superfine fibre of smooth surface, and its mechanical property is better than the fiber that solution electrostatic spinning makes.The composite fibre of the utility model spinning is owing to mix under molten condition, and molecular chain movement is violent, and two-phase interface is fuzzy, two kinds of polymer combinations very tight.Two barrels of the utility model adopt independently temperature control, and two kinds of polymer that melt temperature can be differed bigger carry out composite spinning.The utility model adopts multistage heating, can reduce the time of staying of material in high temperature section, reduces the material thermal degradation.
An embodiment of the present utility model: spinning material low density polyethylene (LDPE) (LDPE) particulate material, 280 ℃ of barrel terminal temperatures; Spinning material is polypropylene (PP) in another barrel, and molten the finger is 1500g/10min, 250 ℃ of barrel terminal temperatures, capillary inner diameter 0.6mm.In addition, spinning voltage is 0～50kv, and receive mode is a conductive mesh, melt capillaceous outlet and receiving system apart from 15cm.According to above-mentioned technical process, the bilateral fibre diameter of collecting is in 1 μ m～50 mu m ranges.
Claims (8)
1. the device of a producing composite fibers through melt-electrospinning, it is characterized in that it mainly comprises receiving system, aggregating apparatus, capillary, nozzle, heating collar, barrel, the axis of the piston, pressue device, end cap, temperature sensor, HV generator etc., receiving system is positioned under the capillary, receiving system connects the cathode output end of HV generator, another electrode grounding of HV generator, capillary and aggregating apparatus are taked conical surface tight fit, capillary is by drawing lead and the earth joins, nozzle adopts screw to be connected with aggregating apparatus, nozzle is connected by screw with barrel, heating collar is coated on the barrel surface, temperature sensor adopts with barrel and is threaded, end cap adopts with the axis of the piston and is threaded, the axis of the piston can pump in barrel, pressue device is positioned at directly over the end cap, and the distance of melt outlet capillaceous and receiving system is greater than 2cm.
2. the device of a kind of producing composite fibers through melt-electrospinning according to claim 1 is characterized in that, spinning material is polymer particles pellet or powder or section or melt.
3. the device of a kind of producing composite fibers through melt-electrospinning according to claim 1 is characterized in that, receiving system (1) can be conducting plate, conductive mesh, reel etc.
4. the device of a kind of producing composite fibers through melt-electrospinning according to claim 1 is characterized in that, the polymer melt device has two covers or many covers.
5. the device of a kind of producing composite fibers through melt-electrospinning according to claim 1 is characterized in that, conductive materials such as capillary (3) employing metal are made, and its internal diameter is less than 1mm.
6. the device of a kind of producing composite fibers through melt-electrospinning according to claim 1 is characterized in that, the mode that pressue device (8) can be by adding counterweight or adopt micro-propeller to realize polymer material is pressurizeed.
7. the device of a kind of producing composite fibers through melt-electrospinning according to claim 1 is characterized in that, nozzle and barrel also can be directly by being threaded or both are processed into one.
8. the device of a kind of producing composite fibers through melt-electrospinning according to claim 1 is characterized in that, end cap and the axis of the piston can be processed into one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201058803U CN201367496Y (en) | 2009-02-25 | 2009-02-25 | Device for producing composite fiber by utilizing melt electrostatic spinning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201058803U CN201367496Y (en) | 2009-02-25 | 2009-02-25 | Device for producing composite fiber by utilizing melt electrostatic spinning |
Publications (1)
| Publication Number | Publication Date |
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| CN201367496Y true CN201367496Y (en) | 2009-12-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2009201058803U Expired - Fee Related CN201367496Y (en) | 2009-02-25 | 2009-02-25 | Device for producing composite fiber by utilizing melt electrostatic spinning |
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| CN (1) | CN201367496Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102191569A (en) * | 2010-03-16 | 2011-09-21 | 北京化工大学 | Parallel-electric-field electrostatic spinner |
| CN104611775A (en) * | 2015-02-10 | 2015-05-13 | 北京化工大学 | Valve type microfluidic bi-component electrostatic spinning nozzle |
| CN104928769A (en) * | 2015-07-13 | 2015-09-23 | 北京化工大学 | Spinning feeding and spinning system with double-layer material barrel and sectional type spinning nozzles |
| CN105926076A (en) * | 2016-05-18 | 2016-09-07 | 南通市苏中纺织有限公司 | Collagen/polyvinyl alcohol/polylactic acid composite fiber |
| CN107364134A (en) * | 2017-07-11 | 2017-11-21 | 嘉兴学院 | A kind of electrohydrodynamics coaxially prints the shower nozzle of the compound Meta Materials of polymer metal |
-
2009
- 2009-02-25 CN CNU2009201058803U patent/CN201367496Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102191569A (en) * | 2010-03-16 | 2011-09-21 | 北京化工大学 | Parallel-electric-field electrostatic spinner |
| CN102191569B (en) * | 2010-03-16 | 2013-06-05 | 北京化工大学 | Parallel-electric-field electrostatic spinner |
| CN104611775A (en) * | 2015-02-10 | 2015-05-13 | 北京化工大学 | Valve type microfluidic bi-component electrostatic spinning nozzle |
| CN104928769A (en) * | 2015-07-13 | 2015-09-23 | 北京化工大学 | Spinning feeding and spinning system with double-layer material barrel and sectional type spinning nozzles |
| CN104928769B (en) * | 2015-07-13 | 2018-01-30 | 北京化工大学 | A kind of spinning feeding spinneret system for having double-deck barrel segmented shower nozzle |
| CN105926076A (en) * | 2016-05-18 | 2016-09-07 | 南通市苏中纺织有限公司 | Collagen/polyvinyl alcohol/polylactic acid composite fiber |
| CN107364134A (en) * | 2017-07-11 | 2017-11-21 | 嘉兴学院 | A kind of electrohydrodynamics coaxially prints the shower nozzle of the compound Meta Materials of polymer metal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091223 Termination date: 20130225 |