CN110219062B - Centrifugal electrostatic spinning equipment and gas-assisted filament discharge system thereof - Google Patents
Centrifugal electrostatic spinning equipment and gas-assisted filament discharge system thereof Download PDFInfo
- Publication number
- CN110219062B CN110219062B CN201910571395.3A CN201910571395A CN110219062B CN 110219062 B CN110219062 B CN 110219062B CN 201910571395 A CN201910571395 A CN 201910571395A CN 110219062 B CN110219062 B CN 110219062B
- Authority
- CN
- China
- Prior art keywords
- gas
- liquid
- hole
- liquid outlet
- shell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/0007—Electro-spinning
- D01D5/0061—Electro-spinning characterised by the electro-spinning apparatus
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/0007—Electro-spinning
- D01D5/0061—Electro-spinning characterised by the electro-spinning apparatus
- D01D5/0069—Electro-spinning characterised by the electro-spinning apparatus characterised by the spinning section, e.g. capillary tube, protrusion or pin
Abstract
The invention discloses a gas-assisted filament discharging system of centrifugal electrostatic spinning equipment, which comprises: the needle head comprises a core liquid outlet hole, a vent hole and a shell liquid outlet hole which are coaxially arranged and are sequentially arranged from inside to outside; and the gas supply device is used for filling gas into the vent holes so as to form gas support between the fluid flowing out of the liquid outlet holes of the inner core and the fluid flowing out of the liquid outlet holes of the outer shell. Set up the air vent between the kernel of syringe needle goes out liquid hole and shell goes out liquid hole, then through gas supply device, make air vent department form gas, gas forms the gas support to the kernel goes out liquid hole and shell goes out liquid hole between the fluid to avoid effectively that the two are mutually soluble. The invention also discloses centrifugal electrostatic spinning equipment comprising the gas-assisted filament discharging system.
Description
Technical Field
The invention relates to the technical field of spinning equipment, in particular to a gas-assisted filament discharging system of centrifugal electrostatic spinning equipment, and further relates to the centrifugal electrostatic spinning equipment comprising the gas-assisted filament discharging system.
Background
In the research of the electrostatic spinning forming method, electrostatic spinning fibers with different structural forms can be obtained by selecting different polymer solution systems, spinning and collecting devices and spinning conditions. Among them, the spinneret device is being studied more and more. The electrostatic spinning nozzle provides jet flow excitation sites by generating fine droplets in the spinning process, so that the electrostatic spinning process is realized. The electrostatic spinning can be classified into single-nozzle electrostatic spinning, composite-nozzle electrostatic spinning, multi-nozzle electrostatic spinning, free-surface electrostatic spinning, centrifugal electrostatic spinning, and the like, according to the difference of spinnerets.
The coaxial electrostatic spinning technology is to improve the structure of a spinning needle head on the basis of the traditional electrostatic spinning, and can prepare composite fibers with hollow or core-shell structures. The fiber prepared by utilizing the coaxial electrostatic spinning technology has wide application prospect and development potential in the fields of biomedicine, energy storage, micro-nano electronics and the like.
At present, two coaxial capillaries are through improving the compound syringe needle that the mutual nested constitution, it is smooth and easy in order to guarantee that shell solution flows, can leave certain space between two capillaries of ectonexine, adopt different storage solution device to store kernel layer and outer shell polymer solution, under the common promotion of propeller, the two-layer liquid of nucleocapsid joins and forms compound liquid drop in syringe needle tip department, prepare out the composite fiber who has the skin-core structure that contains two components and above under the effect of high voltage electrostatic field is tensile, the inner and outer layer solution velocity of flow is more difficult to be controlled, there is certain operation degree of difficulty. Therefore, the materials of the core and the shell in the current stage of coaxial centrifugal electrospinning are easy to be mixed excessively during spinning, so that the core-shell structure is damaged.
In summary, how to effectively solve the problem that the materials of the inner core and the outer shell are easy to be mixed excessively during spinning is a problem which needs to be solved by those skilled in the art.
Disclosure of Invention
In view of the above, a first object of the present invention is to provide a gas-assisted filament discharging system of a centrifugal electrostatic spinning device, which can effectively solve the problem that the materials of the inner core and the outer shell are easy to be mixed excessively during spinning, and a second object of the present invention is to provide a centrifugal electrostatic spinning device comprising the above gas-assisted filament discharging system.
In order to achieve the first object, the invention provides the following technical scheme:
a gas-assisted filament discharge system of a centrifugal electrospinning device, comprising:
the needle head comprises a core liquid outlet hole, a vent hole and a shell liquid outlet hole which are coaxially arranged and are sequentially arranged from inside to outside;
and the gas supply device is used for filling gas into the vent holes so as to form gas support between the fluid flowing out of the liquid outlet holes of the inner core and the fluid flowing out of the liquid outlet holes of the outer shell.
According to the technical scheme, when the fluid flows out of the core liquid outlet hole and the shell liquid outlet hole, the fluid has a certain flow velocity, so that the fluid can not be dispersed, namely, when the core liquid outlet hole is a round hole, the fluid flowing out of the core liquid outlet hole can be integrated into a cylinder at the moment, and the fluid starts to disperse when the flow velocity is reduced to a certain degree. Then when gas is fed between the two fluids, the gas will be stably located between the two fluid streams as long as the gas pressure is appropriate so as not to break through the two fluids. When the flow rate of the fluid is reduced and dispersion is easy to occur, the fluid tends to be solidified at the moment, so that gas breakthrough can be effectively prevented, and meanwhile, the gas can play a certain role in preventing, and mutual dissolution is effectively prevented. Therefore, in the gas-assisted filament discharging system of the centrifugal electrostatic spinning equipment, the vent hole is formed between the inner core liquid discharging hole and the outer shell liquid discharging hole of the needle head, and then the gas is discharged from the vent hole through the gas supply device, so that gas support is formed between fluid flowing out of the inner core liquid discharging hole and fluid flowing out of the outer shell liquid discharging hole by the gas, and mutual dissolution of the fluid and the fluid is effectively avoided. Therefore, the gas-assisted filament outlet system of the centrifugal electrostatic spinning equipment can effectively solve the problem that the materials of the inner core and the outer shell are easy to be mixed excessively during spinning.
Preferably, the gas supply device includes an air pump and a pressure regulating valve connected between the air vent and the air pump.
Preferably, the syringe needle includes that the cover establishes inner tube, well pipe and the outer tube that sets up in proper order from interior to exterior, the inner tube lumen is that core liquid runner and front end port do the core goes out the liquid hole, well pipe inboard with form gas channel between the inner tube outside, and the front end port forms cyclic annular the air vent just compares the core goes out the liquid hole and projects the setting forward, the outer tube inboard with form shell liquid runner between the well outside, and the front end port forms cyclic annular the shell goes out the liquid hole and compares the air vent projects the setting forward.
Preferably, the inner tube, the middle tube and the outer tube are all cylindrical at the rear section and conical at the front section, and a shell liquid inlet is formed in the side edge of the outer tube.
Preferably, the device comprises an inner core liquid supply device for supplying liquid to the inner core liquid outlet hole and a shell liquid supply device for supplying liquid to the shell liquid outlet hole, wherein the inner core liquid supply device and the shell liquid supply device are plunger type liquid pushers.
Preferably, the device further comprises a high-voltage pressure supply device communicated with the outer side of the front section of the needle so as to enable the front side of the needle to form an electrostatic field.
In order to achieve the second object, the invention further provides a centrifugal electrostatic spinning device, which comprises any one of the gas-assisted filament discharging systems, a rotator and a driving device for driving the rotator to rotate, wherein a needle of the gas-assisted filament discharging system is fixedly arranged on the rotator. Because the gas-assisted filament discharging system has the technical effects, the centrifugal electrostatic spinning equipment with the gas-assisted filament discharging system also has the corresponding technical effects.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a gas-assisted filament discharging system according to an embodiment of the present invention.
The drawings are numbered as follows:
the device comprises a high-voltage pressure supply device 1, a needle 2, a pressure regulating valve 3, an air pump 4, an inner core liquid supply device 5 and a shell liquid supply device 6.
Detailed Description
The embodiment of the invention discloses a gas-assisted filament outlet system of centrifugal electrostatic spinning equipment, which is used for effectively solving the problem that materials of a core and a shell are easy to be excessively mixed during spinning.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a gas-assisted filament discharging system according to an embodiment of the present invention.
In an embodiment, the present embodiment provides a gas-assisted filament discharging system of a centrifugal electrostatic spinning device, and the gas-assisted filament discharging system specifically comprises a needle 2 and a gas supply device.
The needle head 2 comprises a core liquid outlet hole, a vent hole and a shell liquid outlet hole which are coaxially arranged and are sequentially arranged from inside to outside. In practical use, the core liquid supply device 5 and the shell liquid supply device 6 are correspondingly arranged to be respectively communicated with the core liquid outlet hole and the shell liquid outlet hole so as to respectively supply corresponding solutions to the core liquid outlet hole and the shell liquid outlet hole. In the application process of the needle head 2, the needle head 2 rotates at a constant speed, so that the core liquid outlet hole and the shell liquid outlet hole continuously discharge liquid, the shell liquid outlet hole is coaxially arranged outside the core liquid outlet hole, namely, the shell liquid outlet hole is tubular, so as to surround the columnar liquid outlet outside the core liquid outlet hole to form a shell, and the columnar liquid outlet of the core liquid outlet hole is compared with the shell to form a core. The fluid is thrown or sprayed forwards along with the fluid in a jet flow shape until the fluid is solidified, and then a solidified shell-core structure is formed. The needle head 2 is also provided with a vent hole between the inner core liquid outlet hole and the outer shell liquid outlet hole, so that after the inner core liquid outlet hole and the outer shell liquid outlet hole are discharged, a certain gas containing cavity is formed by gas supply of the vent hole between the inner core liquid outlet hole and the outer shell liquid outlet hole.
The gas supply device is used for filling gas into the vent holes so as to form gas support between the fluid flowing out of the liquid outlet hole of the inner core and the fluid flowing out of the liquid outlet hole of the outer shell. It should be noted that the specific air pressure of the gas should be related to the flow rate and material of the fluids flowing out of the core liquid outlet and the shell liquid outlet, and the overall environmental temperature and humidity, and therefore is not specifically limited herein, and is adjusted according to the actual situation, so as to support the fluids flowing out of the core liquid outlet and the shell liquid outlet to form the gas, so as to effectively avoid mutual dissolution.
It should be noted that, when the core liquid outlet hole and the shell liquid outlet hole both flow out the fluid, the fluid has a certain flow velocity, so can not present the dispersion form, that is to say, when the core liquid outlet hole is the round hole, the fluid that flows out from the core liquid outlet hole at this moment can be integrated into a cylinder, and when the flow velocity reduces to a certain degree, the dispersion starts, and similarly, the shell liquid outlet hole is the ring hole, so the fluid that the shell liquid outlet hole flows out can be integrated into a circular tube, and the dispersion starts when the flow velocity reduces to a certain degree. Then when gas is fed between the two fluids, the gas will be stably located between the two fluid streams as long as the gas pressure is appropriate so as not to break through the two fluids. When the flow rate of the fluid is reduced and dispersion is easy to occur, the fluid tends to be solidified at the moment, so that gas breakthrough can be effectively prevented, and meanwhile, the gas can play a certain role in preventing, and mutual dissolution is effectively prevented.
Specifically, if the liquid outlet material of the liquid outlet hole of the inner core is as follows: PAN (10% -15%, polyacrylonitrile) is obtained by performing free radical polymerization on monomer acrylonitrile, and the liquid outlet material of the liquid outlet hole of the shell is as follows: TPU
(10% -15%, Thermoplastic polyurethanes, Thermoplastic polyurethane elastomer rubber) at a take-off rate of 0.5ml/h to 1ml/h (milliliters per hour), at an overall spinning ambient temperature of 30 ℃ (centigrade), and at a moisture level of 30% to 40%, the air pressure at the vent may be between 0.1kpa (kilopascals) and 0.2kpa (kilopascals).
Therefore, in the gas-assisted filament discharging system of the centrifugal electrostatic spinning equipment, the vent hole is formed between the inner core liquid outlet hole and the outer shell liquid outlet hole of the needle head 2, and then the gas is discharged from the vent hole through the gas supply device, so that gas support is formed between the fluid flowing out of the inner core liquid outlet hole and the fluid flowing out of the outer shell liquid outlet hole by the gas, and mutual dissolution of the fluid and the fluid is effectively avoided. Therefore, the gas-assisted filament outlet system of the centrifugal electrostatic spinning equipment can effectively solve the problem that the materials of the inner core and the outer shell are easy to be mixed excessively during spinning.
Further, the gas supply means includes an air pump 4 and a pressure regulating valve 3 connected between the air vent and the air pump 4, based on the consideration that the air pressure of the air vent needs to be adjusted to meet the current spinning environment for different situations, and thus has a very precise requirement on the air pressure of the air vent. In an actual scene, the air pressure of the vent hole is adjusted through the pressure adjusting valve 3, so that the air pressure of the vent hole only forms air support and cannot break through the solution flowing out from the liquid outlet hole of the shell.
Regarding syringe needle 2 wherein, for better play silk to form shell package nuclear structure, preferred syringe needle 2 includes that the cover establishes the inner tube, well pipe and the outer tube that set up in proper order from inside to outside here, and wherein the inner tube lumen is core liquid flow channel and front end port do the core goes out the liquid hole, forms gas flow channel between well intraductal side and the inner tube outside, and the front end port forms annular air vent and compares the setting of protruding forward of core play liquid hole, forms shell liquid flow channel between the outer tube inboard and well outside of the pipe, and the front end port forms annular shell play liquid hole and compares the setting of protruding forward of air vent. Specifically, the inner pipe, the middle pipe and the outer pipe can be made to be cylindrical at the rear section and conical at the front section, the shell liquid inlet is formed in the side edge of the outer pipe, and the inner core liquid inlet can be formed in the end portion of the inner pipe and the middle pipe through the air inlet. It should be noted that here and in the context, forward refers to the filament exit direction.
As mentioned above, for the fluid flowing out of the inner core exit hole and the fluid flowing out of the outer shell exit hole, the flow rate of the fluid affects the gas supporting effect thereof, so that the flow rates of the inner fluid and the outer fluid are required to be stable in order to avoid the gas from breaking through the outer shell exit hole to flow out of the fluid. Based on the above, preferably, the core liquid supply device 5 for supplying liquid to the core liquid outlet hole and the shell liquid supply device 6 for supplying liquid to the shell liquid outlet hole are plunger-type liquid pushers, so as to ensure stable liquid pushing pressure.
Further, considering that the higher the fluid flow rate, the better the gas supporting effect, it is preferable here to further include a high voltage pressure supply device 1 for communicating with the outside of the front section of the needle 2 so as to form an electrostatic field at the front side of the needle 2 and thus electrostatically accelerate the fluid.
Based on the gas-assisted filament discharging system provided in the above embodiment, the invention further provides a gas-assisted filament discharging system, which comprises any one of the gas-assisted filament discharging systems in the above embodiments, a rotator and a driving device for driving the rotator to rotate, wherein a needle head of the gas-assisted filament discharging system is fixedly mounted on the rotator. Because the gas-assisted filament discharging system in the above embodiment is adopted, please refer to the above embodiment for the beneficial effect of the gas-assisted filament discharging system.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. A gas-assisted filament discharge system of a centrifugal electrospinning device, comprising:
the needle head comprises a core liquid outlet hole, a vent hole and a shell liquid outlet hole which are coaxially arranged and are sequentially arranged from inside to outside;
the gas supply device is used for filling gas into the vent holes so as to form gas support between the fluid flowing out of the liquid outlet holes of the inner core and the fluid flowing out of the liquid outlet holes of the outer shell; the syringe needle includes that the cover establishes inner tube, well pipe and the outer tube that sets up in proper order from interior to exterior, the inner tube lumen is that core liquid runner and front end port do the core goes out the liquid hole, well pipe inboard with form gas channel between the inner tube outside, and the front end port forms cyclic annular the air vent just compares the core goes out the liquid hole and sets up protrudingly forward, the outer tube inboard with form shell liquid runner between the well outside of pipe, and the front end port forms cyclic annular the shell goes out the liquid hole and compares the air vent sets up protrudingly forward.
2. The gas-assisted filament discharge system of a centrifugal electrospinning device according to claim 1, wherein the gas supply means comprises a gas pump and a pressure regulating valve connected between the vent hole and the gas pump.
3. The gas-assisted filament discharge system of a centrifugal electrostatic spinning device according to claim 2, wherein the inner tube, the middle tube and the outer tube are all cylindrical at the rear section and conical at the front section, and a shell liquid inlet is arranged at the side edge of the outer tube.
4. The gas-assisted filament discharge system of a centrifugal electrostatic spinning device according to claim 2, comprising an inner core liquid supply device for supplying liquid to the inner core liquid discharge hole and an outer shell liquid supply device for supplying liquid to the outer shell liquid discharge hole, wherein the inner core liquid supply device and the outer shell liquid supply device are plunger type liquid pushers.
5. The gas-assisted filament discharge system of a centrifugal electrostatic spinning device according to any one of claims 1 to 4, further comprising a high voltage pressure supply device for communicating with the outside of the front section of the needle so as to form an electrostatic field at the front side of the needle.
6. A centrifugal electrospinning device comprising a spinner and a driving device for driving the spinner to rotate, characterized by further comprising a gas-assisted filament discharge system according to any one of claims 1 to 5, the needle of the gas-assisted filament discharge system being fixedly mounted on the spinner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910571395.3A CN110219062B (en) | 2019-06-26 | 2019-06-26 | Centrifugal electrostatic spinning equipment and gas-assisted filament discharge system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910571395.3A CN110219062B (en) | 2019-06-26 | 2019-06-26 | Centrifugal electrostatic spinning equipment and gas-assisted filament discharge system thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110219062A CN110219062A (en) | 2019-09-10 |
| CN110219062B true CN110219062B (en) | 2021-09-03 |
Family
ID=67815180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910571395.3A Active CN110219062B (en) | 2019-06-26 | 2019-06-26 | Centrifugal electrostatic spinning equipment and gas-assisted filament discharge system thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110219062B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060226580A1 (en) * | 2005-03-29 | 2006-10-12 | University Of Washington | Electrospinning of fine hollow fibers |
| WO2012064287A1 (en) * | 2010-11-12 | 2012-05-18 | Ngee Ann Polytechnic | A porous fiber, methods of making the same and uses thereof |
| CN103147138A (en) * | 2013-03-08 | 2013-06-12 | 厦门大学 | Electrospinning direct-writing jet-printing device enhancing focusing function by virtue of double layers of air |
| CN104593881A (en) * | 2015-02-12 | 2015-05-06 | 北京化工大学 | Electrostatic spinning device for preparing double-component composite material nanofiber |
| CN204939670U (en) * | 2015-09-18 | 2016-01-06 | 厦门大学 | Air-flow auxiliary electrostatic device for spinning |
| CN108987736A (en) * | 2018-09-21 | 2018-12-11 | 合肥国轩高科动力能源有限公司 | A kind of preparation method of coaxial carbon/LiFePO4/graphene nano fiber positive electrode |
-
2019
- 2019-06-26 CN CN201910571395.3A patent/CN110219062B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060226580A1 (en) * | 2005-03-29 | 2006-10-12 | University Of Washington | Electrospinning of fine hollow fibers |
| WO2012064287A1 (en) * | 2010-11-12 | 2012-05-18 | Ngee Ann Polytechnic | A porous fiber, methods of making the same and uses thereof |
| CN103147138A (en) * | 2013-03-08 | 2013-06-12 | 厦门大学 | Electrospinning direct-writing jet-printing device enhancing focusing function by virtue of double layers of air |
| CN104593881A (en) * | 2015-02-12 | 2015-05-06 | 北京化工大学 | Electrostatic spinning device for preparing double-component composite material nanofiber |
| CN204939670U (en) * | 2015-09-18 | 2016-01-06 | 厦门大学 | Air-flow auxiliary electrostatic device for spinning |
| CN108987736A (en) * | 2018-09-21 | 2018-12-11 | 合肥国轩高科动力能源有限公司 | A kind of preparation method of coaxial carbon/LiFePO4/graphene nano fiber positive electrode |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110219062A (en) | 2019-09-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103170416B (en) | A kind of static nozzle and using method thereof | |
| CN104928774B (en) | For producing the composite Nano micrometer fibers centrifugal spinning equipment of nucleocapsid structure | |
| CN103147138B (en) | A kind of electrospinning direct-writing jet printing appts strengthening focusing function by double-deck gas | |
| CN107460642B (en) | Fiber felt preparation device and preparation method thereof | |
| CN106381532B (en) | Electro spinning method for preparing with material gradient distribution characteristics nanofiber | |
| CN106676653B (en) | Core fluid carries two kinds of three-level coaxial electrically spun methods that can not spin outer sheath fluid | |
| CN106435770B (en) | Tornado electrostatic spinning nozzle | |
| CN106801261B (en) | A kind of electro spinning nano fiber and preparation method thereof with drug gradient distribution | |
| CN106400136B (en) | A kind of the three-level coaxial electrically spun preparation method and device of core sheath nanofiber | |
| CN108837778B (en) | Method for preparing drug-loaded nanoparticles with core-shell structure | |
| CN107164810B (en) | The preparation facilities of nanoscale interfacial materials | |
| CN110219062B (en) | Centrifugal electrostatic spinning equipment and gas-assisted filament discharge system thereof | |
| CN113913954B (en) | Superfine nanofiber preparation device and method based on solution atomization and electrostatic-airflow take-over drafting | |
| CN104928768B (en) | Internal and external circular air assisted electrospinning nozzle unit | |
| CN111172600A (en) | Bubble atomization electrostatic spinning nozzle, electrostatic spinning device and application thereof | |
| CN205974755U (en) | Jet -propelled spinning equipment of funnel formula | |
| CN107299401B (en) | Film spinning equipment and micro Nano material preparation method | |
| CN107604451B (en) | Magnetic fluid spinning device | |
| CN106733263A (en) | A kind of bubble charging electrode static nozzle | |
| CN104947208B (en) | Prepare the spinning appts and device for spinning of nanofiber | |
| CN104523431B (en) | High-voltage electrostatic spray device and application with side bloom flute shape porous nozzle | |
| CN208328178U (en) | A kind of spinneret device | |
| CN206143358U (en) | Hollow fiber complex film shower nozzle | |
| CN211497887U (en) | Antistatic interference needleless spinning device | |
| CN217922444U (en) | Spinneret plate assembly for supergravity forced air spinning |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |