CN109913958B - Composite magnetic field and wind field control device for electrospun fiber spraying environment - Google Patents
Composite magnetic field and wind field control device for electrospun fiber spraying environment Download PDFInfo
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Abstract
An electro-spinning fiber jet environment composite magnetic field wind field control device belongs to the field of electro-spinning, and aims to solve the problems of controlling the motion track of electro-spinning jet and improving the collection efficiency of spinning fibers and the quality of the spinning fibers, wherein a rotary air box, an excitation coil and a magnetic box are coaxially arranged in a cylindrical shape, the rotary air box is arranged at the innermost layer, the excitation coil is arranged at the middle layer, and the magnetic box is arranged at the outermost layer; the lower part of the rotary air box is connected with a circular sliding rail, and the circular sliding rail is vertically connected with a bearing, so that the circular sliding rail can rotate along with the bearing; the conveyer belt connecting device transmits rotation to the bearing to enable the rotary type air box to rotate along with the bearing, and the effect is that the rotation of the jet flow has certain controllability and regularity.
Description
Technical Field
The invention belongs to the field of electrospinning, and relates to a composite magnetic field and wind field control device for an electrospinning fiber spraying environment.
Background
In recent years, the research of nano materials becomes a hot problem, the preparation of nano fiber materials by electrostatic spinning technology is one of the most important academic and technical activities in the technical field of material science in the last ten years, and deep research is carried out at home and abroad aiming at the electrostatic spinning technology. Compared with the traditional separation and stretching mode, electrostatic spinning has become one of the main ways for effectively preparing nanofiber materials due to the advantages of simple manufacturing device, low spinning cost, various spinnable substances, controllable process, more obvious effectiveness in nanofiber extraction and the like. The formation process of electrostatic spinning comprises the following steps: the polymer solution is subjected to a sufficiently high voltage electrostatic charge to enable the polymer droplets to generate a jet when in contact with the material surface. The thin flows are stretched and thinned, and meanwhile, through the bending and curing processes, the thin flows are deposited on the surface of an object to form a nanofiber membrane. In the electrostatic spinning process, process variables influencing the appearance and the properties of electrostatic spinning fibers mainly comprise three aspects of fluid characteristics, spinning process parameters and environmental parameters of a polymer solution, wherein the fluid characteristics of the polymer solution mainly comprise characteristic parameters of relative molecular mass, relative molecular mass distribution, viscosity, conductivity, surface tension and the like of the solution; the spinning process parameters mainly comprise the concentration of a high molecular solution, the flow rate of electrostatic spinning fluid, the electric field and magnetic field intensity, the distance between a capillary spinneret and a collecting plate and the state of the collecting plate; the environmental parameters are mainly the temperature and the air flow speed of the spinning processing environment, and the parameters play a decisive role in the electrostatic spinning process. In actual production, the unsteady nature of the jet flow causes the falling point of the fiber on the collecting plate to have randomness, which causes certain difficulty in collecting the fiber. In order to improve the production efficiency, it is a research hotspot to simultaneously utilize a plurality of nozzles to carry out electrostatic spinning, and a plurality of jet flows are simultaneously jetted from different spinneret orifices and fall on the same collecting plate. The jet flow has unstable oscillation characteristics, so that the influence can be generated among the jet flows, each jet flow is mutually staggered, and the collected fibers have random distribution.
Disclosure of Invention
In order to solve the problems of controlling the motion track of the charged jet flow and improving the collection efficiency and the quality of spinning fibers, the invention provides the following technical scheme:
a composite magnetic field and wind field control device for an electrospinning fiber spraying environment mainly comprises a magnetic box, an excitation coil, a control panel, a synchronous motor, a circular slide rail, a bearing, a device driving motor, a rotary air box and a conveyor belt connecting device, wherein the rotary air box, the excitation coil and the magnetic box are coaxially arranged in a cylindrical shape, the rotary air box is arranged on the innermost layer, the excitation coil is arranged on the middle layer, and the magnetic box is arranged on the outermost layer; the lower part of the rotary air box is connected with a circular sliding rail, and the circular sliding rail is vertically connected with a bearing, so that the circular sliding rail can rotate along with the bearing; the conveying belt connecting device conveys rotation to the bearing to enable the rotary type air box to rotate in a follow-up mode; the synchronous motor is arranged outside the magnetic box and provides excitation current for the excitation coil, the upper part and the lower part of the magnetic box are provided with circular holes, and the connecting line of the excitation coil passes through the circular holes to be connected with the control panel.
Further, a first conveyor belt is wound around the lower portion of the rotary bellows, and the conveyor belt is connected to and driven by a device driving motor to perform conveying rotation, so that the rotary bellows rotates in a follow-up manner.
Furthermore, the upper part of the magnetic box is provided with symmetrical rectangular holes which are an inlet and an outlet of a second conveyor belt, the second conveyor belt passes through the rectangular holes and is surrounded in the open groove at the upper part of the rotary type air box, and the second conveyor belt is connected and driven by a driving motor of the device to form transmission rotation, so that the rotary type air box rotates along with the rotation.
Furthermore, the wind-driven wind box also comprises a wind-direction sheet, the rotary wind box and the magnetic box are made of non-metal materials, the rotary wind box is of a circular-ring cylindrical structure consisting of two semicircular columns, the inner surface of the rotary wind box is a groove which is arranged in order and used for fixing the wind-direction sheet, and the wind-direction sheet is fixed on a rotating shaft in the groove on the inner surface of the wind box and used for forming a stable space wind field.
Furthermore, the device comprises an electrospinning container, a spraying needle head, a collecting plate, an electrospinning container placing table, a conveyor belt and a device support, wherein the device support supports the device and is connected with the bearing, the electrospinning container placing table is placed near the device support and is used for hanging the electrospinning container above the coaxially arranged cylinders and corresponds to the collecting plate, and the electrospinning container is provided with the spraying needle head.
Further, the excitation coil is divided into an upper layer and a lower layer, and the lower layer provides a magnetic field larger than that of the upper layer.
Further, the device bracket is made of titanium-magnesium alloy material.
Further, the surface of the collecting plate is coated with a layer of tinfoil for collecting the electrospun fibers.
Further, the control panel is used for selecting the size of the exciting current provided by the synchronous motor and controlling the operation of the synchronous motor.
Furthermore, the electric spinning container placing platform is used for placing and adjusting the position of the electric spinning container, and the injection needle head is positioned at the circle center of the excitation coil.
Has the advantages that: the device controls the movement process of a jet flow through an electrostatic spinning process controlled by a magnetic field, and the distribution of the magnetic field directly influences the control effect of the spinning process. When the electrostatic spinning process starts, the synchronous motor is controlled to generate exciting current in the exciting coil, a space magnetic field is further generated, and jet flow falls to the collecting plate through the magnetic field. Compared with the traditional electrostatic spinning process, the action of the magnetic field on the charged jet flow in the electrostatic spinning process introducing the magnetic field changes the motion behavior and the microscopic morphology of the jet flow, and mainly comprises the following aspects: after the magnetic field is introduced, the jet flow is subjected to an acting force for promoting the jet flow to rotate, the jet flow still rotates around the axis of the spinning nozzle, and the rotating motion is conducted under the guidance of centripetal Lorentz force, so that the rotating of the jet flow has certain controllability and regularity; the external magnetic field has acting force on the jet flow and mainly generates acting force in two directions, namely a radial direction and an axial direction. The radial acting force causes the rotating radius of the jet flow to be reduced, and the axial acting force causes the jet flow to move downwards, so that the effect of stabilizing the rotating motion of the jet flow is further achieved; after the magnetic field is introduced, the swing amplitude of the jet flow is reduced, the corresponding loss energy is reduced, the movement speed of the jet flow is further increased, and the fiber diameter is correspondingly reduced; after the magnetic field is introduced, under the action of Lorentz force, macromolecular chains in the jet flow are further oriented and arranged, and the arrangement is more compact and ordered. In addition, in the electrostatic spinning process, the driving motor drives the rotary air box to rotate at a constant speed, and the air box rotates to drive the wind direction sheet to generate a stable space wind field, so that the stability of jet flow motion in the spinning process is further improved.
Drawings
FIG. 1 is a schematic diagram of the swing amplitude of the jet under different conditions; fig. 1 (a) shows the swing amplitude of the jet flow under the condition of no magnetic field and no wind field, fig. 1 (b) shows the swing amplitude of the jet flow under the condition of magnetic field and no wind field, and fig. 1 (c) shows the swing amplitude of the jet flow under the condition of magnetic field and wind field;
FIG. 2 is a schematic view of the molecular chain arrangement; FIG. 2 (a) shows the molecular chain alignment, and FIG. 2 (b) shows the alignment of macromolecular segments within the fiber;
FIG. 3 is a view showing the overall structure of the apparatus;
FIG. 4 is a view showing the structure of a rotary bellows;
FIG. 5 is a perspective view of a rotary bellows;
FIG. 6 is a schematic top view of the apparatus.
Detailed Description
The invention relates to a composite magnetic field and wind field control device for an electrospinning fiber spraying environment. Through the simple and practical mechanical structure design, the magnetic field is introduced into the electrostatic spinning process, the control on the motion track of the electrostatic jet flow is realized at lower cost, and the collection efficiency of spinning fibers and the quality of the spinning fibers are greatly improved.
The device for controlling the air field of the composite magnetic field of the electrospinning fiber spraying environment comprises a magnetic box 1, an excitation coil 2, a synchronous motor 3, a device support 4, a circular slide rail 5, a device driving motor 6, a rotary type air box 7, an air direction sheet 8, an electrospinning container 9, a spraying needle head 10, a collecting plate 11, a control plate surface 12, an electrospinning container placing table 13, a conveyor belt 14, a motor fixing support 15 and the like.
The magnetic box 1 is a tubular structure, is a high molecular compound material polymerized by methyl methacrylate, and has the advantages of good transparency, chemical stability, mechanical property, weather resistance, easiness in processing and the like. The upper and lower parts of the magnetic box are respectively provided with two round holes with the diameter of 3cm, and the magnet exciting coil 2 can be connected with the control panel surface 12 through the holes. The upper part of the magnetic box is symmetrically provided with rectangular hollow holes which are mainly used for connecting the rotary air box with a conveyor belt.
The excitation coil 2 is divided into an upper layer and a lower layer which are cylindrical, coaxially and tightly arranged in the box body 1, wherein the upper layer mainly provides a smaller magnetic field for the device, and the lower layer mainly provides a larger magnetic field for the device.
The synchronous motor 3 is arranged outside the magnetic box 1 and is mainly responsible for providing excitation exciting current for the exciting coil to generate a space magnetic field and change the stress condition of a jet flow in the electrostatic spinning process.
The device bracket 4 is made of titanium-magnesium alloy material, and has the advantages of high specific strength, small density, corrosion resistance, recoverability and the like. The device bracket 4 is fixed on the device platform, is connected with the circular slide rail 5 and is mainly used for supporting the box body.
The circular slide rail 5 is arranged at the bottom of the magnetic box 1 and the rotary air box 7, is connected with a driving motor of the device through a conveyor belt, is mainly used for supporting the magnetic box and the rotary air box and driving the air box to rotate to form a space wind field.
The driving motor 6 is a stepping motor and is mainly responsible for driving the rotary air box to rotate.
The rotary air box 7 is made of the same non-metallic material as the magnetic box 1, so that the interference of external factors to the magnetic field can be reduced. The rotary air box 7 is a circular cylindrical structure consisting of two semicircular columns, is arranged on the spatial surface of the excitation coil 2 and is divided into an upper part and a lower part, wherein the upper part is designed to be a groove and used for placing the conveyor belt 14, the rotary air box and the magnetic box 1 are integrally in a circular cylindrical structure, and the inner surface of the rotary air box is designed to be the regularly arranged groove and mainly used for fixing the wind vanes 8.
The wind direction sheet 8 is made of polyethylene material and has the advantages of low cost, easy processing, stable chemical property and the like, the wind direction sheet 8 is of a rectangular structure with various specifications, the size can be selected according to the size of the air box and the process requirement, and the wind direction sheet is fixed on a rotating shaft in a groove on the inner surface of the air box and is used for forming a stable space wind field. The used wind direction piece can be repeatedly used after being cleaned and dried.
The electrospinning vessel 9 is responsible for holding various electrospinning solutions.
And the spraying needle 10 is used for spraying the electrospinning solution from the spraying needle under the action of pressure and an electric field, and the diameter of the spraying needle can be changed according to the requirements of experiments.
The surface of the collecting plate 11 is covered with a layer of tinfoil, which is mainly used for collecting the electrospun fibers.
The control panel 12 is mainly used for selecting the magnitude of the exciting current provided by the synchronous motor and controlling the operation of the synchronous motor.
The electric spinning container placing platform 13 is mainly responsible for placing and adjusting the position of the electric spinning container, so that the injection needle 10 can be positioned at the circle center of the excitation coil in the spinning process, and the stable motion of the injection flow in the spinning process is ensured.
The conveyor belt 14 is mainly responsible for connecting a driving motor and a circular slide rail.
The specific technical content is as follows:
in a conventional electrospinning fiber experimental device, a spraying needle head and a collecting plate form positive and negative voltage, an electrified electrospinning solution is sprayed from the needle head and falls on the collecting plate, and the problems that the fiber structure is not uniform and the like easily occur in the spinning process due to instability of the electrospinning process. A composite magnetic field and wind field controller for the sprayed environment of electrospun fibres is composed of magnetic box, exciting coil, synchronous motor, supporter, circular slide track, and casingThe wind power generator consists of a driving motor, a rotary wind box, a wind direction sheet and the like. The magnetic box and the rotary air box are both made of high-molecular non-metallic materials, have the advantages of low cost, convenience in processing, good sealing performance and the like, and can customize cylindrical spaces with various sizes according to the requirements of the electrostatic spinning process. Meanwhile, compared with a metal material, the nonmetal material also greatly reduces the interference of other factors to the magnetic field and ensures the stability of the magnetic field. The rotary air box is a circular cylinder structure formed by connecting two semicircular cylinders, one end of each circular cylinder is connected by a hinge 71, the other end of each circular cylinder is connected by a locking buckle 72, the structure is divided into an upper part and a lower part, and air fields at different positions can be selected for operation according to different spinning process requirements. The groove at the upper part of the air box is connected with a driving motor by a conveyor belt, and the driving motor drives the upper part of the air box to rotate by a coaxial rotating shaft to generate a space wind field; the lower part of the air box is connected with a circular sliding rail, wherein the circular sliding rail is connected with a driving motor through a conveyor belt, and the driving motor drives the lower part of the rotary air box to rotate to generate a space wind field. The synchronous motor can provide exciting current for the exciting coil, the size of the exciting current is adjusted, the spatial distribution condition of the magnetic field is not changed greatly, but the magnetic field intensity is changed, and the magnetic field intensity is increased along with the increase of the exciting current. When the excitation currents are respectively I = 1A; 2A; 3A; at 4A, the magnetic field intensity of the horizontal plane of the central area of the excitation coil is respectively as follows:
. In the spinning process, the current can be adjusted according to different process requirements, so that the intensity of the magnetic field intensity can be controlled. One end of the device support is arranged on the device platform, and the other end of the device support is connected with a circular sliding rail which is arranged at the bottoms of the magnetic box and the rotary air box. Before the spinning process starts, selecting a magnetic box and a rotary air box of corresponding models according to the characteristics of the electrospun fiber material, the spraying requirement and the process requirement, and assembling the magnetic box, the excitation coil and the rotary air box on a device bracket and a circular slide rail; covering a layer of tinfoil on the collection plate surface, and placing the collection plate covered with the tinfoil between the three device brackets; and finally, adjusting the electrospinning container to the circle center of the device. After the above-mentioned work is completed,the collecting plate is connected with the negative electrode of a high-voltage power supply by a power line, and the power supply positive electrode of the injection needle of the electrospun fiber is connected, so that positive and negative voltages for promoting the injection of the electrospun fiber are formed between the collecting plate and the needle. According to the technological requirements, proper exciting current and space wind field are selected on the control panel, then the driving motor is started to enable the rotary type air box to rotate, and because of the action of centripetal force during rotation, the wind direction sheet in the groove of the air box is driven by the rotating shaft to form a certain angle with the air box, and the size of the angle can be adjusted by adjusting the rotating speed of the driving motor. After the wind direction sheet in the rotary wind box enters a stable motion state, the spinning process can be started. Under the condition that other conditions are the same, after the magnetic field is introduced, the swing amplitude of the jet flow is controlled due to the action of the magnetic field on the Lorentz force of the charged jet flow; after introducing the space wind field, the swing amplitude of the jet flow is further controlled, as shown in fig. 1 (a), the swing amplitude of the jet flow under the condition of no magnetic field and no wind field, as shown in fig. 1 (b), the swing amplitude of the jet flow under the condition of magnetic field and no wind field, and as shown in fig. 1 (c), the swing amplitude of the jet flow under the condition of magnetic field and wind field. The movement swing of the jet flow is reduced after the magnetic field is introduced, so that the corresponding energy loss is reduced, the movement speed of the jet flow is further increased, and the fiber diameter is correspondingly reduced.
In addition to the influence of the magnetic field on the swing amplitude of the jet flow and the fiber diameter, under the same conditions in the spinning process, the magnetic field is introduced to influence the arrangement of the macromolecular chain segments in the macromolecular solution. In the conventional electrostatic spinning process, the polymer solution generates polarized charges under the action of a high-voltage electric field, and macromolecular chains are aligned along the direction of the electric field, as shown in fig. 2 (a). In the magnetic control electrostatic spinning process, a high-voltage electric field and a magnetic field are introduced at the same time, molecular chains are further oriented and arranged under the action of Lorentz force, and as shown in figure 2 (b), macromolecular chain segments in the fibers are arranged more tightly and more orderly.
After the electrostatic spinning process is completed, the wind direction piece may have impurities such as residual solution and fiber residues, and after all power sources are cut off, the rotary air box can be taken out of the device, the lock catch on the air box is unlocked, the rotary air box is opened, and then the wind direction piece is taken out to be cleaned for the next use.
The device for controlling the air field of the composite magnetic field of the electrospinning fiber spraying environment aims at controlling the instability of the movement of a spraying flow in the electrostatic spinning process, and the movement track of the spraying flow is controlled by using the magnetic field. Under the action of the magnetic field, the jet flow is subjected to Lorentz force in the falling process, and certain changes occur on macro motion and microstructure so as to obtain spinning fibers with higher quality.
A composite magnetic field and wind field control method for an electrospinning fiber spraying environment comprises the following steps:
s1, a synchronous motor provides exciting current for an exciting coil, the exciting current is adjusted, the magnetic field intensity changes, and the magnetic field intensity becomes larger along with the increase of the exciting current;
s2, according to process requirements, selecting proper exciting current and a space wind field on a control panel, starting a driving motor to enable a rotary type air box to rotate, and under the action of centripetal force during rotation, driving a wind direction sheet in a groove of the rotary type air box to form an angle with the air box through a rotating shaft, adjusting the rotating speed of the driving motor to adjust the angle, and starting a spinning process after the wind direction sheet in the rotary type air box enters a stable motion state;
introducing a magnetic field, wherein the swinging amplitude of the jet flow is acted on the Lorentz force of the charged jet flow by the magnetic field, and the swinging amplitude of the jet flow is controlled; introducing a space wind field, and controlling the swing amplitude of a jet flow; after the magnetic field is introduced, the movement swing of the jet flow is reduced, the corresponding energy loss is reduced, the movement speed of the jet flow is increased, and the fiber diameter is correspondingly reduced.
Further, between the step S1 and the step S2, the steps of:
s1.1, before the spinning process starts, selecting a magnetic box and a rotary air box of corresponding models according to the material quality of an electrospinning fiber, the spraying requirement and the process requirement, assembling the magnetic box, an excitation coil and the rotary air box on a device support and a circular slide rail, covering a layer of tinfoil on a collecting plate surface, placing the collecting plate coated with the tinfoil in the middle of three device supports, and adjusting an electrospinning container to the circle center of the device;
s1.2, connecting the collecting plate with the negative electrode of a high-voltage power supply by using a power line, connecting the positive electrode of a power supply of a spraying needle head of the electrospun fiber, and forming positive and negative voltage for promoting the electrospinning fiber to spray between the collecting plate and the spraying needle head.
Further, after the electrostatic spinning process flow is completed, the rotary air box can be taken down from the device after all power supplies are cut off, the sealing lock catch on the air box is unlocked, the rotary air box is opened, and the wind direction sheet is taken out for cleaning for the next use.
Further, when the excitation currents are respectively I = 1A; 2A; 3A; at 4A, the magnetic field intensity of the horizontal plane of the central area of the excitation coil is respectively as follows:
。
the above description is only for the purpose of creating a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can substitute or change the technical solution and the inventive concept of the present invention within the technical scope of the present invention.
Claims (6)
1. A composite magnetic field wind field control device for an electrospinning fiber spraying environment is characterized by mainly comprising a magnetic box, an excitation coil, a control panel, a synchronous motor, a circular slide rail, a bearing, a device driving motor, a rotary air box and a conveyor belt connecting device, wherein the rotary air box, the excitation coil and the magnetic box are coaxially arranged in a cylindrical shape, the rotary air box is arranged on the innermost layer, the excitation coil is arranged on the middle layer, and the magnetic box is arranged on the outermost layer; the lower part of the rotary air box is connected with a circular sliding rail, and the circular sliding rail is vertically connected with a bearing, so that the circular sliding rail can rotate along with the bearing; the conveying belt connecting device conveys rotation to the bearing to enable the rotary type air box to rotate in a follow-up mode; the synchronous motor is arranged outside the magnetic box and provides exciting current for the exciting coil, the upper part and the lower part of the magnetic box are provided with circular holes, and a connecting line of the exciting coil is connected with the control panel through the circular holes; the first conveyor belt is wound in a groove at the lower part of the rotary type bellows, and the first conveyor belt is connected with the first conveyor belt and driven by a device driving motor to form conveying rotation so as to enable the rotary type bellows to rotate along with the first conveyor belt; the upper part of the magnetic box is provided with symmetrical rectangular holes which are an inlet and an outlet of a second conveyor belt, the second conveyor belt passes through the rectangular holes and is surrounded in a slot on the upper part of the rotary type air box, and the second conveyor belt is connected and driven by a device driving motor to form transmission rotation so as to enable the rotary type air box to rotate along with the second conveyor belt; the wind-driven generator is characterized by also comprising a wind-direction sheet, wherein the rotary wind box and the magnetic box are made of non-metal materials, the rotary wind box is of a circular-ring cylindrical structure consisting of two semicircular columns, the inner surface of the rotary wind box is a groove which is arranged in order and used for fixing the wind-direction sheet, and the wind-direction sheet is fixed on a rotating shaft in the groove on the inner surface of the wind box and used for forming a stable space wind field; the device comprises an electrospinning container, a jet needle, a collecting plate, an electrospinning container placing table, a conveyor belt and a device bracket, wherein the device bracket supports the device and is connected with a bearing, the electrospinning container placing table is placed near the device bracket, the electrospinning container is hung above a coaxially arranged cylinder and corresponds to the collecting plate, and the electrospinning container is provided with the jet needle.
2. The electrospun fiber spraying environment composite magnetic field wind field control device of claim 1 wherein the excitation coil is divided into an upper layer and a lower layer, the lower layer providing a magnetic field greater than the upper layer.
3. The electrospun fiber spraying environment composite magnetic field wind field control device of claim 1 wherein the device holder is made of titanium magnesium alloy material.
4. The electrospun fiber spraying environment composite magnetic field wind field control device of claim 1,
the surface of the collecting plate is coated with a layer of tinfoil for collecting the electrospun fibers.
5. The electrospun fiber spraying environment composite magnetic field wind field control device of claim 1,
the control panel is used for selecting the exciting current provided by the synchronous motor and controlling the operation of the synchronous motor.
6. The electrospun fiber spraying environment composite magnetic field wind field control device of claim 1,
the electric spinning container placing platform is used for placing and adjusting the position of the electric spinning container, and the injection needle head is positioned at the circle center of the excitation coil.
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| CN2856070Y (en) * | 2005-12-20 | 2007-01-10 | 东华大学 | Electrostatic spinning equipment with magnetic controller |
| FR2918676B1 (en) * | 2007-07-13 | 2009-08-21 | Saint Gobain Isover Sa | DEVICE FOR A FIBER MATTRESS FORMATION FACILITY |
| CN102965743A (en) * | 2012-12-17 | 2013-03-13 | 厦门大学 | Nanofiber low-voltage electro-spinning device with auxiliary electrodes |
| CN104562231A (en) * | 2015-01-09 | 2015-04-29 | 苏州大学 | Jet flow-controllable bubble electrospinning apparatus |
| CN105734699A (en) * | 2016-05-16 | 2016-07-06 | 苏州大学 | Airflow and air bubble spinning device for preparing ordered fiber material based on assistance of magnetic field |
| CN207031615U (en) * | 2017-03-22 | 2018-02-23 | 吴强 | A kind of integral type blowing electrostatic spinning device |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2856070Y (en) * | 2005-12-20 | 2007-01-10 | 东华大学 | Electrostatic spinning equipment with magnetic controller |
| FR2918676B1 (en) * | 2007-07-13 | 2009-08-21 | Saint Gobain Isover Sa | DEVICE FOR A FIBER MATTRESS FORMATION FACILITY |
| CN102965743A (en) * | 2012-12-17 | 2013-03-13 | 厦门大学 | Nanofiber low-voltage electro-spinning device with auxiliary electrodes |
| CN104562231A (en) * | 2015-01-09 | 2015-04-29 | 苏州大学 | Jet flow-controllable bubble electrospinning apparatus |
| CN105734699A (en) * | 2016-05-16 | 2016-07-06 | 苏州大学 | Airflow and air bubble spinning device for preparing ordered fiber material based on assistance of magnetic field |
| CN207031615U (en) * | 2017-03-22 | 2018-02-23 | 吴强 | A kind of integral type blowing electrostatic spinning device |
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