CN202272995U - Electrostatic spinning machine with licker-in electrode for continuously preparing wide-breadth spinning coatings - Google Patents
Electrostatic spinning machine with licker-in electrode for continuously preparing wide-breadth spinning coatings Download PDFInfo
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- CN202272995U CN202272995U CN2011202390780U CN201120239078U CN202272995U CN 202272995 U CN202272995 U CN 202272995U CN 2011202390780 U CN2011202390780 U CN 2011202390780U CN 201120239078 U CN201120239078 U CN 201120239078U CN 202272995 U CN202272995 U CN 202272995U
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Abstract
The utility model belongs to the field of electro-spinning, in particular to an electrostatic spinning machine with a licker-in electrode for continuously preparing wide-breadth spinning coatings. The licker-in electrode arranged below a counter electrode arranged in the electrostatic spinning machine is composed of a plurality of licker-ins, a base roller and end shafts, wherein the plurality of licker-ins are arranged on the surface of the base roller in a surrounding manner; the two end shafts are respectively and coaxially connected at the two ends of the base roller; and for the plurality of licker-ins arranged on the surface of the base roller, the non-pointed ends of the plurality of licker-ins are arranged on the surface of the base roller so that the pointed ends of the plurality of licker-ins are outwards radial along the radial direction of the base roller. When the electrostatic spinning machine provided by the utility model is used for carrying out spinning, the continuous and stable volume production of micrometer and nanometer electro-spinning products can be realized in high efficiency; compared with other electrostatic spinning machines for spinning, the electrostatic spinning machine has the advantages that the number of nozzles (the licker-ins) for simultaneously spraying yarns can be simply and effectively increased, particularly, the number of nozzles (the licker-ins) in the width direction of silks, and the continuous large-scale production of the thicker silks with the wider breadth is realized.
Description
Technical field
The utility model belongs to electric spinning field, particularly a kind of electrostatic spinning machine with continuous preparation wide format spinning coating of special licker-in electrode.
Background technology
The electricity spining technology is that the high polymeric solution or the melt of non-newtonian fluid overcomes surface tension and viscous force formation injection thread under the effect of high voltage electric field; Thread is solvent evaporation or curing in course of injection; Finally drop on the receiving system, form a kind of technology of the nanometer of nonwoven fabric shape to the Sub-micro Fibers goods.In the last few years, electric spining technology had become the focus of theoretical research and application study because should technology can for example macromolecular material, composite, ceramic material etc. provide a kind of simple effective method for the fiber functional material of preparation micron and nanoscale.One of typical field of application of the fiber functional material of this micron and nanoscale is a separating and filtering, promptly as the barrier material of holding back submicron particles, bacterium and chemicals.In field of medicaments, be used as pharmaceutical carrier and anatomic implants carrier.Since the high-specific surface area of nano-fiber material, the carrier of useful as catalysts, the materialization that improves fluid significantly is active.At the micron and the intensive micropore that distributing in the fibrous sheet material of receiving, make it have good heat insulation and moisture sorption effect, can be used for making heat-barrier material and receiving fluids material.Can find out that based on this its market application foreground is very wide.
Along with going deep into of electrostatic spinning technique theory and application research, it is found that laboratory technique changes into industrial production technology and is badly in need of addressing the problem: the one, the duty of maintenance continous-stable, the 2nd, the efficient preparation fast of wide format silk article.For this reason, the scientific research personnel has successively developed multiple continuous wide breadth face and has prepared spinning coating or gathering-device, has solved the batch process problem to a certain extent, but has come with some shortcomings.For example: KH-08 type electrostatic spinning machine; It is the silk spraying method that simply the electric spinning of the single shower nozzle system parallel connection of some spraying methods is from top to bottom made up or added in addition the iterative motion of each shower nozzle; Its shortcoming is a complex structure, and problem that single shower nozzle ran into such as fluid passage be prone to be stopped up, flowed fluctuation big (the syringe pump machine error causes) causes the fiber thickness inequality or coating fault, coating layer thickness skewness, form problems such as relevant factor (fluid viscosity, flow velocity and the electric-field intensity etc.) adjustable range of taylor cone is narrow and all do not overcome.Taylor bores multiple spray head static spinning machine (CN200710172744.1); What it adopted is the mode that sprays from the bottom up, and its structure is that some single shower nozzles are arranged in the shower nozzle case, curved compared to electrode tip by liquid surface in each shower nozzle of constant displacement pump control; The shower nozzle case is orthogonal to the reciprocating motion of the fiber collecting curtain direction of motion to realize the continuous wide breadth spraying; Its shortcoming one is that the reciprocating motion meeting causes fluid pipeline vibration or deformation, makes shower nozzle arc liquid fluctuating, causes the spray silk unstable; The 2nd, around the electrode tip at arc liquid level place the protruding peak of liquid level, the fast viscosity of solvent evaporates becomes Da Yi and stops up shower nozzle; The 3rd, the required precision of shower nozzle manufactured size is high.
Summary of the invention
The purpose of the utility model is the deficiency that overcomes above-mentioned each electrostatic spinning apparatus; A kind of electrostatic spinning machine with continuous preparation wide format spinning coating of special licker-in electrode is provided, to realize continuously, to stablize, to produce in batches efficiently the electric spinning product of micron and nanoscale.
The electrostatic spinning machine of the continuous preparation wide format spinning coating with special licker-in electrode of the utility model comprises: take-up is rolled, the spinning collecting belt, put that band rolls, reservoir, cloth liquid bath, spinning solution, circulating pump, liquid-transport pipe-line, high-voltage DC power supply, the licker-in electrode that can rotate, high pressure resistant electric wire, to electrode cable, to electrode, guiding roll shaft, box body, adjusting leading screw, heater and air-introduced machine etc.; As shown in Figure 1.
The described licker-in electrode that can rotate is horizontally disposed with, and an end of described high pressure resistant electric wire is connected with described licker-in electrode, and the other end is connected with the high-voltage output end of described high-voltage DC power supply; Under described licker-in electrode, be provided with described cloth liquid bath; Directly over described licker-in electrode, be provided with described to electrode; Described to electrode with its top the described adjusting leading screw that can carry out height adjustment be connected, and described to electrode through electrode cable is connected with the earth terminal of described high-voltage DC power supply; Described adjusting leading screw is assembled in the top of described box body.
Described a side above the electrode is vertically arranged with first and second guiding roll shaft; Be vertically arranged with the 3rd and the 4th guiding roll shaft at opposite side; One end rolls the described spinning collecting belt that is connected with the described band of putting; Behind the described first guiding roll shaft by described lower surface to electrode to described the 3rd guiding roll shaft to the electrode opposite side; And by the described opposite side of turning back back behind described the 4th guiding roll shaft of the 3rd guide roller beam warp, and after second of this side leads roll shaft, roll and be connected with described take-up to electrode to electrode top.
Be provided with described heater at described right opposite, above this heater, be provided with air-introduced machine the described spinning collecting belt above the electrode.
Described box body with described heater, described adjusting leading screw, the described first, second, third and the 4th guiding roll shaft, described electrode, described licker-in electrode and described cloth liquid bath are sealed inside, and form the supporter of electrostatic spinning machine; Top at described box body has air outlet, and the air intake vent of this air outlet and described air-introduced machine is tightly connected.
Have described take-up to roll in the outer setting of described box body, describedly put that band rolls, described reservoir, described circulating pump and described high-voltage DC power supply; The wherein said band of putting rolls to roll respectively with described take-up and is connected with an end at described spinning collecting belt two ends, and described circulating pump is connected with described reservoir and described cloth liquid bath respectively via described liquid-transport pipe-line.
Between described reservoir and the described cloth liquid bath liquid back pipe is arranged.Be provided with agitator in the described reservoir.Described cloth liquid bath should be higher than described reservoir and the described circulating pump height apart from ground apart from the height on ground.
Described licker-in electrode is that the speed governing drive unit known by people drives, with the demand of the spinning solution that adapts to different formulations.The rotating speed of described licker-in electrode is 5～30rpm.
Described licker-in electrode is made up of many acupunctures, basic roller and end axle, and is as shown in Figure 2; Described many acupunctures are around on the surface that is installed in described basic roller, two coaxial respectively two ends that are connected in described basic roller of described end axle.
Describedly being installed in the lip-deep many acupunctures of basic roller, is that the non-most advanced and sophisticated end with described many acupunctures is installed on the described basic roller surface, makes described many acupunctures all along most advanced and sophisticated outwardly radial of radially being of described basic roller.
Described basic roller is to be made up of single or a plurality of cylinders.Connect vertically by a plurality of above-mentioned part bodies when basic roller and respectively to form body when constituting and to be close to connection by coaxial manner.
Describedly be installed in the lip-deep many acupunctures of basic roller, the distance between the non-tip of two acupunctures that all are adjacent is all equal approximately; Distance between two adjacent acupunctures is about 5～20mm.
Described spinning collecting belt is meant the wide cut layer material that is easy to reel, the fabric width of the length of described basic roller >=described spinning collecting belt.
The traffic direction of described spinning collecting belt should with the licker-in electrode axially spatially near just intersecting (be space angle be about 90 degree).Its speed of service is 1～100mm/s.
Described take-up is rolled and is put band and rolls the cylinder that is meant that the fabric width with the spinning collecting belt adapts, and is driven by the drive unit that people knew.
Should leave suitable gap like 5～15mm between the groove inner surface of described cloth liquid bath and the licker-in electrode.
Described spinning solution is meant polymer solution.
Described circulating pump is meant peristaltic pump or membrane pump.
The voltage of described high-voltage DC power supply should be 1～50kV or-1～-50kV is adjustable.
The area of described lower surface to electrode should be greater than the area (about more than 4 times) of radially projecting's face of licker-in electrode.Electrode is certain high position of post surface normal (top) 80～250mm that plane or arc surface shape are symmetricly set in the licker-in electrode, and this position is regulated leading screw by adjustment and is realized.
Described guiding roll shaft is driven by the speed governing drive unit that people knew, to adapt to the demand of different spinning article.The length of guiding roll shaft should be greater than the width (having more 100mm approximately) of spinning collecting belt.
Described box body is to be formed by connecting shape framework and nonmetal cover plate, and and licker-in electrode and distributing trough between guarantee electric insulation.Box body must earth connection.
Described heater is meant radiation heating or convection heater, as: infrared irridiation device, blowing hot wind device etc.
Described air-introduced machine is meant axial flow blower or centrifugal blower.
Material to electrode, acupuncture, basic roller and end axle should be conducting metal, as: stainless steel, carbon steel, copper, aluminium etc.
Described take-up rolls, puts that band rolls, the material of liquid back pipe, liquid-transport pipe-line and reservoir cloth liquid bath should be nonmetal.
Described agitator is meant the solution disperser that people know.
Described high pressure resistant electric wire and the high pressure resistant electrical cables that electrode cable is meant people respectively and is known and common attaches the overcoat electric wire, and its capacitance should be suitable for described high-voltage DC power supply.
The operation principle of the electrostatic spinning machine of the continuous preparation wide format spinning coating with special licker-in electrode of the utility model is:
At first utilize the adjusting leading screw in the electrostatic spinning machine of continuous preparation wide format spinning coating to go up and down, make electrode and licker-in distance between electrodes are reached appropriate value (50～400mm) electrode with special licker-in electrode.
Reservoir is started agitator by the splendid attire spinning solution, and circulating pump is sent this spinning solution into the cloth liquid bath through liquid-transport pipe-line.When the spinning solution in this cloth liquid bath fills with, unnecessary spinning solution will and be got back in the reservoir through the back liquid pipeline overflow.The circulation of this spinning solution makes the spinning solution in the cloth liquid bath be able to replenish constantly, upgrade and keep concentration stabilize.
The band of putting that the spinning collecting belt was rolled and was wound with in the installation take-up rolls, and is manual with spinning collecting belt successively pile warp guiding roll shaft, to electrode, lead roll shaft, heater and air-introduced machine, guiding roll shaft, is wound up into take-up at last and rolls.Drive take-up and roll and put band and be rolled into suitable rotating speed, guarantee that the linear velocity of the two is consistent with the linear velocity of the roll shaft outer surface that leads, and to make the movement velocity of spinning collecting belt be appropriate value (1～100mm/s).
Drive the licker-in electrode to suitable rotating speed (5～30rpm), its outer surface is soaked hangs up the spinning solution layer.Start high-voltage DC power supply; And increase output voltage to appropriate value (30～45kV) gradually; The electric current of high-voltage DC power supply feeds the licker-in electrode via high pressure resistant electric wire; The region of high-voltage DC power supply is through being passed on the electrode electrode cable; This moment the licker-in electrode with the spatial dimension between the electrode is formed the high-voltage electrostatic field, the spinning solution at the most advanced and sophisticated place of each acupuncture of the licker-in electrode the first half of rotating receives to be drawn into filament under the effect of driving force of this high-voltage electrostatic field and to continue to arrive on the moving spinning collecting belt, the microfilament coating is received in formation.This process that is drawn into filament also is accompanied by the volatilization process of wet part of the contained major part of filament.Coating is by further oven dry when attaching the spinning collecting belt that has collected coating and move near the heater, and then the spinning collecting belt is rolled coiling by take-up.Wet part of all volatilizations is set at the air-introduced machine emptying at box body top in the box body.So far realized the preparation of the electric spinning thin layer product of continuous wide breadth.
The beneficial effect of the utility model
1. when utilizing the electrostatic spinning machine of the continuous preparation wide format spinning coating of the special licker-in electrode of having of the utility model to carry out spinning; When utilizing existing other electrostatic spinning machine to carry out spinning; Can be simply and increase shower nozzle (acupuncture) quantity of spray silk simultaneously effectively, especially in shower nozzle (acupuncture) quantity of the fabric width direction of silk article; Also can do cell layout's adjustment arbitrarily according to the different needs of silk article fabric width and silk article thickness simultaneously, the mode that promptly adopts a plurality of licker-in electrodes parallel connections to make up operations makes up production line, realizes the more continuous large-area production of wide format and thicker size silk article.
2. the design of the licker-in electrode of the rotation of the utility model and acupuncture thereof distribution; In continuous spinning was produced, spinning head quantity (acupuncture quantity) dynamic constant that can keep getting into simultaneously the spray silk can keep each spinning head (acupuncture) to be in spray silk, surface again and again again immersing the cloth liquid bath and also rinse clearly, hang in the dynamic circulation of attaching spinning solution.Significantly reduced that other various spinning head showed as: stop up, local caking, taylor cone is unstable or be difficult to problem such as shape taylor cone, makes stable production process reliable.
3. the solution recycle system of the reservoir of the utility model, agitator, circulating pump, cloth liquid bath, liquid-transport pipe-line and return duct design; Can make that spinning solution in the cloth liquid bath is able in continuous flow procedure continuous updating, concentration stabilize is constant and additional, can keep the liquid level of the spinning solution in the cloth liquid bath constant again.Make acupuncture hang to attach spinning solution time cycle with hang the amount of attaching spinning solution and stablize constantly, and then guaranteed to spray the stable of thread attitude.
4. the design of the spray silk mode from the bottom to top of the utility model: overcome taylor cone and formed needed harsh conditions, strong to the adaptability of various spinning solutions.Simultaneously, do not have big drop or foreign matter and fall on the spinning product, guarantee product quality.
5. the utility model can be by regulating the leading screw setting height, to adapt to various spinning working condition requirements to electrode.
6. the design of heater of the utility model and air-introduced machine can be quickened wet part volatilization in tow and the silk layer effectively, and outside part timely discharge machine that should wet.Simultaneously, air-introduced machine is arranged on the design to the electrode top, further carries and stretching action having to the moving tow of spinning collecting belt from the licker-in electrode.
Description of drawings
Fig. 1. the continuous wide breadth face with special licker-in electrode of the utility model prepares the structure principle chart of the electrostatic spinning machine of spinning coating.
Fig. 2. the continuous wide breadth face with special licker-in electrode of the utility model prepares the structural representation of licker-in electrode of the electrostatic spinning machine of spinning coating.
Reference numeral
1. take-up is rolled 2. spinning collecting belts 3. and is put band and roll 4. liquid back pipes
5. reservoir 6. agitators 7. cloth liquid baths 8. spinning solutions
9. circulating pump 10. liquid-transport pipe-lines 11. high-voltage DC power supplies 12. licker-in electrodes
12a. acupuncture 12b. base roller 12c. end axle
13. 15. pairs of electrodes of 14. pairs of electrode cables of high pressure resistant electric wire, 16. guiding roll shafts
17. box body 18. is regulated leading screw 19. heaters 20. air-introduced machines
The specific embodiment
See also Fig. 1, the electrostatic spinning machine that the continuous wide breadth face with special licker-in electrode prepares the spinning coating comprises: take-up rolls 1, spinning collecting belt 2, put that band rolls 3, liquid back pipe 4, reservoir 5, agitator 6, cloth liquid bath 7, circulating pump 9, liquid-transport pipe-line 10, high-voltage DC power supply 11, the licker-in electrode 12 that can rotate, high pressure resistant electric wire 13, to electrode cable 14, to electrode 15, guiding roll shaft 16, box body 17, regulate leading screw 18, heater 19 and air-introduced machine 20.
The described licker-in electrode that can rotate 12 is horizontally disposed with, and an end of described high pressure resistant electric wire 13 is connected with described licker-in electrode 12, and the other end is connected with the high-voltage output end of described high-voltage DC power supply 11; Under described licker-in electrode 12, be provided with the described cloth liquid bath 7 of filling with spinning solution 8, and keep the lower semi-body of licker-in electrode to be immersed in the spinning solution; Directly over described licker-in electrode 12, be provided with described to electrode 15; Described to electrode 15 with its top the described adjusting leading screw 18 that can carry out height adjustment be connected, and described to electrode 15 through the earth terminal of electrode cable 14 with described high-voltage DC power supply 11 is connected; Described adjusting leading screw 18 is assembled in the top of described box body 17.
Described a side above the electrode 15 is vertically arranged with first and second guiding roll shaft 16; Be vertically arranged with the 3rd and the 4th guiding roll shaft 16 at opposite side; One end rolls the 3 described spinning collecting belts 2 (50 μ m is thick, 200mm the is wide aluminium thin materials that are easy to reel) that are connected with the described band of putting; Through described first guiding roll shaft 16 back by described lower surface to electrode 15 to described to the 3rd of the electrode 15 opposite sides roll shaft 16 that leads; And by the 3rd guiding roll shaft 16 through described the 4th guiding described opposite side of turning back back behind the roll shaft 16 to electrode 15 to electrode 15 tops, and after second of this side leads roll shaft 16, roll 1 and be connected with described take-up;
Be provided with described heater 19 described above to the described spinning collecting belt 2 above the electrode 15, above this heater 19, be provided with air-introduced machine 20;
Described box body 17 with described heater 19, described adjusting leading screw 18, the described first, second, third and the 4th guiding roll shaft 16, described electrode 15, described licker-in electrode 12 and described cloth liquid bath 7 are sealed inside, form the supporter of electrostatic spinning machine; Top at described box body 17 has air outlet, and the air intake vent of this air outlet and described air-introduced machine is tightly connected;
Have described take-up to roll 1 in the outer setting of described box body 17, describedly put that band rolls 3, described reservoir 5, described circulating pump 9 and described high-voltage DC power supply 11; The wherein said band of putting rolls 1 and rolls 3 with described take-up and be connected with an end at described spinning collecting belt 2 two ends respectively, and described circulating pump 9 is connected with described reservoir 5 that has agitator 6 and described cloth liquid bath 7 respectively via described liquid-transport pipe-line 10; And between described reservoir 5 and the described cloth liquid bath 7 liquid back pipe 4 is arranged, described cloth liquid bath 7 is higher than described reservoir 5 and the height of described circulating pump 9 apart from ground apart from the height on ground.
Described licker-in electrode 12 is to be that 6mm, diameter are that the acupuncture 12a of 0.8mm, a structure are that external diameter is 25mm by 205 length, and length is that cylindrical basic roller 12b and two end axle 12c of 250mm form, and structure is as shown in Figure 2; The non-most advanced and sophisticated end ring boxing of described 205 acupuncture 12a is connected on the surface of described basic roller 12b, makes described 205 acupuncture 12a all along the most advanced and sophisticated radial setting outwardly of radially being of described basic roller 12b; Two end axle 12c difference coaxial welding are in the two ends of described basic roller 12b.Described licker-in electrode 12 is driven by buncher, and rotating speed is got 20rpm.
Describedly be welded on lip-deep 205 acupunctures of basic roller 12b; The non-tip of each the acupuncture 12a that on the periphery of the basic roller 12b that launches, is welded should be equilateral triangle and distribute (the size dimension value of described equilateral triangle is got 10mm), and promptly the distance between the non-tip of all two adjacent acupunctures all equates; Distance between two adjacent acupunctures is about 5～20mm.
Axially spatially just the intersecting of the traffic direction of described spinning collecting belt 2 and licker-in electrode 12 (being that space angle is 90 degree).Its speed of service is 2mm/s.
Described take-up roll 1 with putting band to roll 3 be that width all be that 250mm, external diameter all are the cylinder of 50mm, and by the buncher driving, its travel line speed is 2mm/s.Material is a rigid plastics.
Described cloth liquid bath 7 is that a length is that 290mm, internal diameter are half cylinder grooved container of φ 50mm.Material is a rigid plastics.Leave suitable gap between the groove inner surface of described cloth liquid bath and the licker-in electrode.
Described spinning solution 8 is that mass concentration is 12% polyvinyl alcohol (PVA) solution, and the mean molecule quantity of polyvinyl alcohol is 85000.
Described circulating pump 9 is meant peristaltic pump.
The voltage of described high-voltage DC power supply 11 should be adjusted to 40kV.
Described lower surface to electrode 15 is of a size of length * wide=300mm * 300mm.Electrode 15 is the high position of post surface normal (top) 200mm that flat shape is symmetricly set in licker-in electrode 12, and this position is regulated leading screw 6 by adjustment and is realized.
Described 4 guiding roll shafts 16 are driven by buncher, and linear velocity is 2mm/s, and length is 300mm.
Described box body 18 is that the framework that is welded into φ 20 stainless steel pipes and the cover plate of the thick lucite of 8mm are formed by connecting with bolt, and and licker-in electrode 12 and distributing trough 7 between guarantee electric insulation.Box body 18 earth connections.The apparent size of box body 18 is: length * wide * height=600 * 400 * 700mm.
Described heater 19 is meant the infrared irridiation lamp of 200W.
Described air-introduced machine 20 is meant the axial flow blower of 20W.
Material to electrode 15, acupuncture 12a, basic roller 12b and end axle 12c is a stainless steel.
The material of described liquid back pipe 4, liquid-transport pipe-line 10 is the silicone tube of φ 6 of stimulating the menstrual flow.
Described reservoir 5 is glass beakers of 1000ml.
Described agitator 6 is magneton agitators.
Use above-mentioned electrostatic spinning machine and carry out spinning:
At first utilize and regulate leading screw 18 up-downs, make to the distance between electrode 15 and the licker-in electrode 12 to be 200mm electrode 15.
Take-up is installed rolls 1 and roll 3 with the band of putting that is wound with spinning collecting belt 2, manual with spinning collecting belt 2 successively pile warps guiding roll shafts 16, to electrode 15, guiding roll shaft 16, heater 19 and air-introduced machine 20, guiding roll shaft 16, be wound up into take-up at last and roll on 1.Drive take-up roll 1 with put band and roll 3 to suitable rotating speed, guarantee that the linear velocity of the two is consistent with the linear velocity of 4 roll shaft 16 outer surfaces that lead, be equal to the movement velocity of spinning collecting belt 2: 2mm/s.
Drive licker-in electrode 12 to suitable rotating speed 20rpm, its outer surface is soaked hang up the spinning solution layer.Start high-voltage DC power supply 11; And increase output voltage gradually to appropriate value 40kV; The electric current of high-voltage DC power supply 11 feeds licker-in electrode 12 via high pressure resistant electric wire; The region of high-voltage DC power supply 11 is through being passed on the electrode 15 electrode cable 14; This moment licker-in electrode 12 with the spatial dimension between the electrode 15 is formed the high-voltage electrostatic field, the spinning solution 8 at the most advanced and sophisticated place of each acupuncture 12a of licker-in electrode 12 the first half of rotating receives to be drawn into filament under the effect of driving force of this high-voltage electrostatic field and to continue to arrive on the moving spinning collecting belt 2, the microfilament coating is received in formation.This process that is drawn into filament also is accompanied by the volatilization process of wet part of the contained major part of filament.Coating is by further oven dry when attaching the spinning collecting belt 2 that has collected coating and move near the heater 19, and then spinning collecting belt 2 is rolled 1 by take-up and reels.Wet part of all volatilizations is set at air-introduced machine 20 emptyings at box body 17 tops in the box body 17.So far realized the preparation of the electric spinning thin layer product of continuous wide breadth.The amount of resulting electric spinning goods is: 6mg/s, the diameter of silk is 60～250nm.
The structure of continuous wide breadth face electrostatic spinning machine with special licker-in electrode is basically with embodiment 1; Wherein compare the following content of conversion with embodiment 1:
Be welded on the lip-deep acupuncture of basic roller 12b and be transformed to 405 by 205; The external diameter of base roller 12b is 25mm, length be 250mm to be transformed to external diameter be 25mm, length is 500mm.
Spinning collecting belt 2 is transformed to 50 μ m is thick, 400mm the is wide aluminium thin materials that are easy to reel by 50 μ m is thick, 200mm the is wide aluminium thin materials that are easy to reel.
Described take-up roll 1 with putting band to roll 3 all be that 250mm, external diameter all are that to be transformed to width all be that 500mm, external diameter all are the cylinder of 50mm for the cylinder of 50mm by width.
Described cloth liquid bath 7 is that 290mm, internal diameter are that to be transformed to length be that 540mm, internal diameter are half cylinder grooved container of φ 50mm for half cylinder grooved container of φ 50mm by length.
Is described spinning solution 8 12% polyvinyl alcohol (PVA) solution by mass concentration, the weight average (number average of polyvinyl alcohol?) molecular weight is that 85000 to be transformed to mass concentration be 10% polyvinyl alcohol (PVA) solution, the polyvinyl alcohol molecular weight is 120000.
The size of described lower surface to electrode 15 is transformed to length * wide=300mm * 500mm by length * wide=300mm * 300mm.
Described 4 guiding roll shafts 16 are that to be transformed to length be 500mm to 300mm by length.
The frame transform that described box body 18 is welded into by φ 20 stainless steel pipes is the framework that φ 25 stainless steel pipes are welded into; The apparent size of box body 18 is transformed to length * wide * height=900 * 600 * 900mm by length * wide * height=600 * 400 * 700mm.
Described heater 19 is transformed to the infrared irridiation lamp of 400W by the infrared irridiation lamp of 200W.
Described air-introduced machine 20 is transformed to the axial flow blower of 40W by the axial flow blower of 20W.
Described reservoir 5 is transformed to the glass beaker of 2000ml by the glass beaker of 1000ml.
Use above-mentioned electrostatic spinning machine and carry out spinning:
Application process is basic identical with embodiment 1; Wherein compare the following content of conversion with embodiment 1:
At first utilize and regulate leading screw 18 up-downs, make to the distance between electrode 15 and the licker-in electrode 12 to be 160mm electrode 15.
The amount of resulting electric spinning goods is: 7.2mg/s, the diameter of silk is 60～250nm.
Claims (10)
1. electrostatic spinning machine with continuous preparation wide format spinning coating of licker-in electrode, it comprises: take-up is rolled, the spinning collecting belt, put that band rolls, reservoir, cloth liquid bath, spinning solution, circulating pump, liquid-transport pipe-line, high-voltage DC power supply, the licker-in electrode that can rotate, high pressure resistant electric wire, to electrode cable, to electrode, guiding roll shaft, box body, adjusting leading screw, heater and air-introduced machine; It is characterized in that:
The described licker-in electrode that can rotate is horizontally disposed with, and an end of described high pressure resistant electric wire is connected with described licker-in electrode, and the other end is connected with the high-voltage output end of described high-voltage DC power supply; Under described licker-in electrode, be provided with described cloth liquid bath; Directly over described licker-in electrode, be provided with described to electrode; Described to electrode with its top described adjusting leading screw be connected, and described to electrode through electrode cable is connected with the earth terminal of described high-voltage DC power supply; Described adjusting leading screw is assembled in the top of described box body;
Described a side above the electrode is vertically arranged with first and second guiding roll shaft; Be vertically arranged with the 3rd and the 4th guiding roll shaft at opposite side; One end rolls the described spinning collecting belt that is connected with the described band of putting; Behind the described first guiding roll shaft by described lower surface to electrode to described the 3rd guiding roll shaft to the electrode opposite side; And by the described opposite side of turning back back behind described the 4th guiding roll shaft of the 3rd guide roller beam warp, and after second of this side leads roll shaft, roll and be connected with described take-up to electrode to electrode top;
Be provided with described heater at described right opposite, above this heater, be provided with air-introduced machine the described spinning collecting belt above the electrode;
Described box body with described heater, described adjusting leading screw, the described first, second, third and the 4th guiding roll shaft, described electrode, described licker-in electrode and described cloth liquid bath are sealed inside; Top at described box body has air outlet, and the air intake vent of this air outlet and described air-introduced machine is tightly connected;
Have described take-up to roll in the outer setting of described box body, describedly put that band rolls, described reservoir, described circulating pump and described high-voltage DC power supply; The wherein said band of putting rolls to roll respectively with described take-up and is connected with an end at described spinning collecting belt two ends, and described circulating pump is connected with described reservoir and described cloth liquid bath respectively via described liquid-transport pipe-line.
2. the electrostatic spinning machine with continuous preparation wide format spinning coating of licker-in electrode according to claim 1 is characterized in that: between described reservoir and the described cloth liquid bath liquid back pipe is arranged.
3. the electrostatic spinning machine with continuous preparation wide format spinning coating of licker-in electrode according to claim 1 is characterized in that: gapped between the groove inner surface of described cloth liquid bath and the licker-in electrode.
4. the electrostatic spinning machine with continuous preparation wide format spinning coating of licker-in electrode according to claim 1 is characterized in that: the area of described lower surface to electrode is greater than the area of radially projecting's face of described licker-in electrode.
5. according to claim 1 or 4 described electrostatic spinning machines, it is characterized in that: described electrode is the high position of post surface normal 80～250mm that plane or arc surface shape are arranged at described licker-in electrode with continuous preparation wide format spinning coating of licker-in electrode.
6. according to claim 1,3 or 4 described electrostatic spinning machines with continuous preparation wide format spinning coating of licker-in electrode, it is characterized in that: described licker-in electrode is made up of many acupunctures, basic roller and end axle; Described many acupunctures are around on the surface that is installed in described basic roller, two coaxial respectively two ends that are connected in described basic roller of described end axle;
Describedly being installed in the lip-deep many acupunctures of basic roller, is that the non-most advanced and sophisticated end with described many acupunctures is installed on the described basic roller surface, makes described many acupunctures all along most advanced and sophisticated outwardly radial of radially being of described basic roller.
7. the electrostatic spinning machine with continuous preparation wide format spinning coating of licker-in electrode according to claim 6, it is characterized in that: described basic roller is to be made up of single or a plurality of cylinders.
8. the electrostatic spinning machine with continuous preparation wide format spinning coating of licker-in electrode according to claim 6 is characterized in that: describedly be installed in the lip-deep many acupunctures of basic roller, the distance between the non-tip of two adjacent acupunctures equates.
9. the electrostatic spinning machine with continuous preparation wide format spinning coating of licker-in electrode according to claim 8 is characterized in that: the distance between described adjacent two acupunctures is 5～20mm.
10. the electrostatic spinning machine with continuous preparation wide format spinning coating of licker-in electrode according to claim 7 is characterized in that: the fabric width of the length of described basic roller >=described spinning collecting belt.
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| CN2011202390780U CN202272995U (en) | 2011-07-07 | 2011-07-07 | Electrostatic spinning machine with licker-in electrode for continuously preparing wide-breadth spinning coatings |
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| CN2011202390780U CN202272995U (en) | 2011-07-07 | 2011-07-07 | Electrostatic spinning machine with licker-in electrode for continuously preparing wide-breadth spinning coatings |
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2011
- 2011-07-07 CN CN2011202390780U patent/CN202272995U/en not_active Expired - Fee Related
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| CN103060932A (en) * | 2013-01-14 | 2013-04-24 | 暨南大学 | Drum electrostatic spinning device |
| CN103060932B (en) * | 2013-01-14 | 2015-07-22 | 暨南大学 | Drum electrostatic spinning device |
| CN103484956A (en) * | 2013-10-12 | 2014-01-01 | 厦门大学 | Electrospun nano-fiber air floatation delivery and collection device |
| CN103484956B (en) * | 2013-10-12 | 2015-08-05 | 厦门大学 | Electro spinning nano fiber air supporting transmission gathering-device |
| CN104562444A (en) * | 2014-12-29 | 2015-04-29 | 东华大学 | Electrostatic spraying nano-cobweb waterproof moisture-permeable film and preparation method thereof |
| CN104894661A (en) * | 2015-07-06 | 2015-09-09 | 苏州大学 | Electrostatic spinning device |
| CN104911721A (en) * | 2015-07-06 | 2015-09-16 | 苏州大学 | Electrostatic spinning device for producing nanofiber in batches |
| CN107099863A (en) * | 2017-04-13 | 2017-08-29 | 哈尔滨工程大学 | A kind of heat radiation heated type electrostatic spinning machine |
| CN111394805A (en) * | 2020-03-09 | 2020-07-10 | 东华大学 | Sea urchin-shaped electrostatic spinning nozzle and spinning method thereof |
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