CN202226974U - Device for collecting orientated nanometre fibres - Google Patents
Device for collecting orientated nanometre fibres Download PDFInfo
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- CN202226974U CN202226974U CN2011202143321U CN201120214332U CN202226974U CN 202226974 U CN202226974 U CN 202226974U CN 2011202143321 U CN2011202143321 U CN 2011202143321U CN 201120214332 U CN201120214332 U CN 201120214332U CN 202226974 U CN202226974 U CN 202226974U
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- cylinder
- metallic plates
- oriented nanofibers
- metal plates
- motor
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Abstract
The utility model relates to a device for collecting orientated nanometre fibres. The device comprises a roller, two metal plates, a motor and a negative electrode high-voltage output device, wherein the two metal plates are arranged in parallel and are connected by electric wires; the roller is arranged between or above the two metal plates; when the roller is arranged between the two metal plates, the axial direction of the roller is parallel to the length direction of the two metal plates; when the roller is arranged above the two metal plates, the axial direction of the roller is vertical to the length direction of the two metal plates; the roller is connected with the output shaft of the motor; and the two metal plates are connected with the negative electrode high-voltage output device. The device can acquire nanometre fibres with a high orientation degree and high yield.
Description
Technical field
The utility model relates to the electrostatic spinning field, particularly relates to a kind of parallel metal sheet cylinder and collects the oriented nanofibers device.
Background technology
In recent years, because static spins easy to operately, raw material sources are extensive, at room temperature spinning; And the electrostatic spinning nano fiber fineness is thin, and porosity is high, and surface area is big, and applied range can be used on filtering material, sensor, organizational project, aspects such as medicament slow release.Therefore electrostatic spinning nano fiber has received the concern of more and more researchers.Electrostatic spinning be with on polymer solution or the melt band several thousand to volt high-pressure electrostatics up to ten thousand, charged drop is accelerated at the Taylor vertex of a cone under the electric field force effect, when electric field force was enough big, the polymer drop can overcome surface tension and form and spray thread.The refinement that under effects such as electric field force, viscous resistance, surface tension, is stretched of charged polymer jet, simultaneously charged jet in electric field owing to existing surface charge to bend.Thread is solvent evaporation or curing in course of injection, finally drops on the receiving system, forms the nanofiber mats of similar nonwoven fabric.
Up to the present, most of electrostatic spinning nano fibers are to collect with the form of nonwoven fabric, thus its range of application just compare less, can only be as filtering material, organizational project, coated film etc.Yet we know from traditional fiber and textile industry, continuous single nanofiber and vertically the bundles of nanofibers of orientation have more widely and use.But the bundles of nanofibers or the single nanofiber that utilize electro-spinning to get orientations all are very difficult, because spin in the process at static, the motion of polymer jet is very complicated, three-dimensional " whip is moving ", and the motion state of non-rectilinear.Therefore; Domestic and international many researchers are making great efforts to study the method that makes oriented nanofibers; Comprise following two types: (1) utilizes the metal roller gathering-device of rotation at a high speed; When drum rotation speed reaches 4000rpm or above speed, just can collect the relatively nanofiber of orientations, but the fiber that utilizes this method to collect has just obtained orientation to a certain extent; (2) utilize round turntable with sharp edges or framework as gathering-device, the degree of orientation of the nanofiber of collecting increases, but the output of the nanofiber of collecting is low-down.So up to the present, also do not produce continuous single nanofiber long filament, and the output of oriented nanofibers is relatively very low.
Summary of the invention
The utility model technical problem to be solved provides a kind of collection oriented nanofibers device, and the degree of orientation that solves oriented nanofibers in the prior art is not high, and the problem that yields poorly.
The utility model solves the technical scheme that its technical problem adopted: a kind of collection oriented nanofibers device is provided, comprises cylinder, two high pressure output devices of metallic plate, motor and negative pole, described two metallic plates are side by side parallel, and link to each other with electric wire; Described cylinder between described two metallic plates or above; Described cylinder is between described two metallic plates the time, described cylinder axially parallel with the length direction of described two metallic plates; When described cylinder is positioned at the top of described two metallic plates, described cylinder axially vertical with the length direction of described two metallic plates; Described cylinder links to each other with the output shaft of described motor; Described two metallic plates link to each other with the high pressure output device of described negative pole.
Described motor links to each other with speed regulator.
The diameter of described cylinder is greater than the height of described metallic plate.
Described cylinder is between described two metallic plates the time, and the distance between described two metallic plates is than the big 2-4 of diameter centimetre of described cylinder.
Described cylinder is processed by insulating materials.
Described motor adopts direct current supply.
Beneficial effect
Owing to adopted above-mentioned technical scheme, the utility model compared with prior art has following advantage and good effect: the utility model adopts parallel metal sheet and cylinder to cooperate and collects oriented nanofibers; Metallic plate is equivalent to an auxiliary electrode, utilizes this two kinds of corollary apparatus, and cylinder is as main gathering-device; It is bigger to collect area; Therefore the nanofiber of collecting is many, and PR is bigger, and efficient is than higher; Thereby it is higher to obtain the degree of orientation, and output is also than higher nanofiber.The utility model also can be through regulating the position of metallic plate and cylinder, can obtain different levels, and the nanofiber of the hierarchy that the degree of orientation is different has bigger using value.In addition, the utility model is fairly simple and can realize that static spins the continuous production of oriented nanofibers.
Description of drawings
Fig. 1 is that the parallel metal sheet cylinder is collected oriented nanofibers device (cylinder is between metallic plate) front view;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is that the parallel metal sheet cylinder is collected oriented nanofibers device (cylinder is above metallic plate) front view;
Fig. 4 is the vertical view of Fig. 3;
Fig. 5 utilizes the parallel metal sheet cylinder to collect the structural representation that the oriented nanofibers device carries out electrostatic spinning.
The specific embodiment
Below in conjunction with specific embodiment, further set forth the utility model.Should be understood that these embodiment only to be used to the utility model is described and be not used in the restriction the utility model scope.Should be understood that in addition those skilled in the art can do various changes or modification to the utility model after the content of having read the utility model instruction, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
The embodiment of the utility model relates to a kind of collection oriented nanofibers device; As depicted in figs. 1 and 2, comprise the cylinder that can speed change rotates 1, two parallel side by side metallic plate 2, be used to drive the motor 3 that cylinder rotates, speed regulator 4 and the high pressure output device 5 of negative pole of regulating motor speed.Couple together with a wire between two parallel metallic plates 2 side by side, and link to each other, so when electrostatic spinning, can increase the electrical potential difference between positive extra-high voltage and the metallic plate 2 with the high pressure output device 5 of negative pole.The height of two metallic plates 2 is less than the diameter of cylinder 1, so can avoid nanofiber all to be collected in the surface of metallic plate 2.Cylinder 1 is to be processed by nonconducting insulating materials, like organic glass or plastic tube etc., can reduce the interference of cylinder to high voltage electric field like this, makes electric field more stable.When carrying out electrostatic spinning; Cylinder surface covering one deck aluminium foil conducts electricity as the receiving system of nanofiber; And with aluminium foil connecting to neutral current potential; Be for nanofiber all is stretched to above the aluminium foil like this, thereby the gap that can reduce between motor or two metallic plates receive nanofiber, has increased the output of oriented nanofibers greatly.When carrying out electrostatic spinning, motor 3 drives cylinder 1 and rotates, and cylinder 1 rotating speed can be regulated through speed regulator 4.The motor of index drum rotating speed is to adopt direct current supply, can avoid high voltage electric field is exerted an influence.
Because the electrical potential difference between metallic plate 2 and the cathode voltage is higher than other local electrical potential differences, according to point discharge, jet can be collected between two metallic plates 2 in stretching.When cylinder 1 is placed between two metallic plates 2 (as depicted in figs. 1 and 2); And when cylinder 1 is axially parallel with the length direction of metallic plate 2; When cylinder 1 high-speed rotation (is 2000rpm like rotating speed); Jet can be arranged in parallel within the surface of cylinder 1 along cylinder 1 circumferencial direction, and the distance between this moment two metallic plates is than the somewhat larger in diameter of described cylinder, and generally the distance between two metallic plates is than the big 2-4 of diameter centimetre of described cylinder; Make nanofiber can not be scattered in the place in the space between the metallic plate 2, guarantee that whole nanofibers all is deposited on the surface of cylinder 1.When cylinder 1 is placed on the top (like Fig. 3 and shown in Figure 4) of two metallic plates 2, and cylinder 1 is axially with metallic plate 2 length directions when perpendicular, and when cylinder 1 rotating ratio hangs down (is 200rpm like rotating speed), nanofiber can be arranged in parallel along cylinder 1 axial direction.So just can collect the nanofiber of orientations by cylinder surface, and can obtain different levels, the oriented nanofibers that orientation is different.All greater than the height of metallic plate 2, so can avoid nanofiber to be collected in the surface of metallic plate 2 and the interstitial site between two metallic plates 2 at the diameter of above-mentioned two kinds of situation bottom rolls 1, improve the output of oriented nanofibers.
Further describe in the face of the method for using parallel metal sheet cylinder gathering-device to carry out electrostatic spinning down; As shown in Figure 5; May further comprise the steps: syringe 6 is injected with spinning solution in (1); The outlet of syringe 6 is connected with syringe needle 8 through plastic tube 7, and with syringe needle 8 be fixed on cylinder 1 directly over, positive extremely high tension generator 9 is linked to each other with syringe needle 8.(2) two metallic plates 2 are placed on cylinder 1 both sides respectively, connect the high pressure output device 5 of negative pole and link to each other with two metallic plates 2, and at cylinder 1 surface parcel one all aluminium foils.(3) open the motor 3 that links to each other with cylinder 1, make cylinder 1 rotation at a high speed.(4) open positive extremely high tension generator 9 and the high pressure output device 5 of negative pole.(5) utilize the electric capacity that forms between two metallic plates 2, static spins jet and is stretched between two metallic plates, and at this moment the nanofiber of 1 pair of orientations of cylinder of rotation is collected at a high speed.
Adopt polyvinyl alcohol (PVA) solution to carry out spinning below.Spinning solution injects after the syringe, is connected with syringe needle through a plastic tube, and syringe needle is fixed on directly over the cylinder, and links to each other with positive extremely high tension generator.Metallic plate is placed on the cylinder both sides, and connects the negative pole high pressure.Open and drive the motor that cylinder rotates, and regulate speed regulator, the rotating speed that makes cylinder is 2000rpm.The voltage-regulation of positive extremely high tension generator is arrived 15kV, and the voltage-regulation of negative pole high pressure generator arrives-5kV, and cylinder surface wraps up all aluminium foils, as the receiving system of nanofiber.Receiving range (being the distance of cylinder top and syringe needle) is 20cm.The diameter of the oriented nanofibers of preparing is about 250nm.
Be not difficult to find that the utility model adopts parallel metal sheet and cylinder to cooperate and collects oriented nanofibers, metallic plate is equivalent to an auxiliary electrode; Utilize this two kinds of corollary apparatus, cylinder is as main gathering-device, and it is bigger to collect area; Therefore the nanofiber of collecting is many, and PR is bigger, and efficient is than higher; Thereby it is higher to obtain the degree of orientation, and output is also than higher nanofiber.The utility model also can be through regulating the position of metallic plate and cylinder, can obtain different levels, and the nanofiber of the hierarchy that the degree of orientation is different has bigger using value.In addition, the utility model is fairly simple and can realize that static spins the continuous production of oriented nanofibers.
Claims (6)
1. collect the oriented nanofibers device for one kind, comprise cylinder (1), two metallic plates (2), motor (3) and the high pressure output device of negative pole (5), it is characterized in that described two metallic plates (2) are side by side parallel, and link to each other with electric wire; Described cylinder (1) is positioned between described two metallic plates (2) or the top; When described cylinder (1) is positioned between described two metallic plates (2), described cylinder (1) axially parallel with the length direction of described two metallic plates (2); When described cylinder (1) is positioned at the top of described two metallic plates (2), described cylinder (1) axially vertical with the length direction of described two metallic plates (2); Described cylinder (1) links to each other with the output shaft of described motor (3); Described two metallic plates (2) link to each other with the high pressure output device of described negative pole (5).
2. collection oriented nanofibers device according to claim 1 is characterized in that, described motor (3) links to each other with speed regulator (4).
3. collection oriented nanofibers device according to claim 1 is characterized in that the diameter of described cylinder (1) is greater than the height of described metallic plate (2).
4. collection oriented nanofibers device according to claim 1 is characterized in that, when described cylinder (1) was positioned between described two metallic plates (2), the distance between described two metallic plates (2) was than the big 2-4 of diameter centimetre of described cylinder (1).
5. collection oriented nanofibers device according to claim 1 is characterized in that described cylinder (1) is processed by insulating materials.
6. collection oriented nanofibers device according to claim 1 is characterized in that, described motor (3) adopts direct current supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202143321U CN202226974U (en) | 2011-06-22 | 2011-06-22 | Device for collecting orientated nanometre fibres |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202143321U CN202226974U (en) | 2011-06-22 | 2011-06-22 | Device for collecting orientated nanometre fibres |
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| Publication Number | Publication Date |
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| CN202226974U true CN202226974U (en) | 2012-05-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202143321U Expired - Fee Related CN202226974U (en) | 2011-06-22 | 2011-06-22 | Device for collecting orientated nanometre fibres |
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| CN (1) | CN202226974U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102260930A (en) * | 2011-06-22 | 2011-11-30 | 东华大学 | Device for collecting orientation nano fibre and method |
| CN104562232A (en) * | 2015-01-09 | 2015-04-29 | 苏州大学 | Electrostatic spinning device for preparing orderly nanometer fibers |
| CN107224883A (en) * | 2017-06-14 | 2017-10-03 | 江苏久朗高科技股份有限公司 | The technique that a kind of method of electrostatic spinning prepares ceramic separation film |
| CN108179485A (en) * | 2017-12-05 | 2018-06-19 | 合肥国轩高科动力能源有限公司 | A kind of novel electrostatic spinning roller collection device |
-
2011
- 2011-06-22 CN CN2011202143321U patent/CN202226974U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102260930A (en) * | 2011-06-22 | 2011-11-30 | 东华大学 | Device for collecting orientation nano fibre and method |
| CN102260930B (en) * | 2011-06-22 | 2015-01-07 | 东华大学 | Device for collecting orientation nano fibre and method |
| CN104562232A (en) * | 2015-01-09 | 2015-04-29 | 苏州大学 | Electrostatic spinning device for preparing orderly nanometer fibers |
| CN107224883A (en) * | 2017-06-14 | 2017-10-03 | 江苏久朗高科技股份有限公司 | The technique that a kind of method of electrostatic spinning prepares ceramic separation film |
| CN107224883B (en) * | 2017-06-14 | 2019-07-05 | 江苏久朗高科技股份有限公司 | A kind of technique that method of electrostatic spinning prepares ceramic separation film |
| CN108179485A (en) * | 2017-12-05 | 2018-06-19 | 合肥国轩高科动力能源有限公司 | A kind of novel electrostatic spinning roller collection device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120523 Termination date: 20160622 |
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| CF01 | Termination of patent right due to non-payment of annual fee |