CN102268747A - High-voltage electrostatic electron shuttle nano-spinning device - Google Patents
High-voltage electrostatic electron shuttle nano-spinning device Download PDFInfo
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- CN102268747A CN102268747A CN201110217431XA CN201110217431A CN102268747A CN 102268747 A CN102268747 A CN 102268747A CN 201110217431X A CN201110217431X A CN 201110217431XA CN 201110217431 A CN201110217431 A CN 201110217431A CN 102268747 A CN102268747 A CN 102268747A
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- 238000009987 spinning Methods 0.000 title claims abstract description 43
- 239000007788 liquid Substances 0.000 claims abstract description 87
- 238000003860 storage Methods 0.000 claims abstract description 38
- 239000002121 nanofiber Substances 0.000 claims abstract description 25
- 239000000758 substrate Substances 0.000 claims abstract description 19
- 238000001523 electrospinning Methods 0.000 claims abstract description 12
- 229910052751 metal Inorganic materials 0.000 claims description 25
- 239000002184 metal Substances 0.000 claims description 25
- 239000004745 nonwoven fabric Substances 0.000 claims description 13
- 239000004020 conductor Substances 0.000 claims description 10
- 230000003068 static effect Effects 0.000 claims description 9
- 230000000694 effects Effects 0.000 claims description 6
- 229910052755 nonmetal Inorganic materials 0.000 claims description 6
- 239000000919 ceramic Substances 0.000 claims description 4
- 229920003023 plastic Polymers 0.000 claims description 4
- 239000004033 plastic Substances 0.000 claims description 4
- 239000011521 glass Substances 0.000 claims description 3
- 229920002521 macromolecule Polymers 0.000 claims description 3
- 239000000123 paper Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 230000017105 transposition Effects 0.000 claims description 2
- 238000004140 cleaning Methods 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 4
- 230000005686 electrostatic field Effects 0.000 abstract description 2
- 230000001105 regulatory effect Effects 0.000 abstract 2
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- 239000000243 solution Substances 0.000 description 13
- 239000012528 membrane Substances 0.000 description 8
- 238000010041 electrostatic spinning Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 229920002239 polyacrylonitrile Polymers 0.000 description 5
- 239000004372 Polyvinyl alcohol Substances 0.000 description 4
- 230000005684 electric field Effects 0.000 description 4
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- 229920002451 polyvinyl alcohol Polymers 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
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- 241000239290 Araneae Species 0.000 description 2
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- KAESVJOAVNADME-UHFFFAOYSA-N Pyrrole Chemical compound C=1C=CNC=1 KAESVJOAVNADME-UHFFFAOYSA-N 0.000 description 2
- -1 alkane ketone Chemical class 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
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- 150000002739 metals Chemical class 0.000 description 2
- LJROKJGQSPMTKB-UHFFFAOYSA-N 4-[(4-hydroxyphenyl)-pyridin-2-ylmethyl]phenol Chemical compound C1=CC(O)=CC=C1C(C=1N=CC=CC=1)C1=CC=C(O)C=C1 LJROKJGQSPMTKB-UHFFFAOYSA-N 0.000 description 1
- 235000011470 Adenanthera pavonina Nutrition 0.000 description 1
- 241000428378 Lopa Species 0.000 description 1
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical class CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 1
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 1
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- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
- Nonwoven Fabrics (AREA)
Abstract
The invention relates to a high-voltage electrostatic electron shuttle nano-spinning device, belonging to the electrospinning technology. The device comprises a solution storage cavity, an electronic liquid pump, an electronic liquid pump driver, a non-metallic support, a receiving device, a receiving substrate, nano fibers, a high-voltage electrostatic generator, an electric thermostat and a box body, wherein the solution storage cavity, the electronic liquid pump, the electronic liquid pump driver and the non-metallic support form an electrostatic electron shed and the electrostatic electron shed and the high-voltage electrostatic generator jointly form an electrostatic electron shuttle; and the spinning solution is injected into the solution storage cavity and spinning can be carried out by regulating the voltage. The device has the following beneficial effects: by forming the electrostatic electron shuttle and regulating the electrostatic field intensity, the Taylor cone quantity is adjustable, the spinning rate is adjustable and the diameters of the nano fibers are adjustable; in the presence of the electric thermostat, the system is not affected by the ambient temperature and humidity; feeding can be carried out in batches or continuously; the device has the advantages of high degree of automation, easiness in cleaning, safety, reliability, simplicity and convenience in operation and the like; and the device can be used for preparing various nano fibers fast.
Description
Technical field
The invention belongs to the electrostatic spinning technique field, be specifically related to a kind of high-pressure electrostatic electronics shuttle nano-spun silk device.
Background technology
Electrostatic spinning technique is that non-newtonian fluid produces jet after the match at high-pressure electrostatic, forms a kind of technology of micron and even nanofiber, and it is the direct method that can be used for preparing organic and inorganic and composite nano fiber.Because electro spinning nano fiber all has good prospects for application at numerous areas such as filtrations, medicine, environment, organizational project, electronics, catalysis, sound-absorbing and military affairs, thus about the research of electrospinning silk equipment at one of hot subject that becomes global many scholars and engineers and technicians recently.
At present, the electrospinning silk equipment of prepared in laboratory nanofiber mainly contains following several form: single spray nozzle type, many spray nozzle types, porous type, roll-type, slit electrical spinning method.Wherein modal is single spray nozzle type, and it builds simple, cheap, but spinning speed is extremely slow, in 0.001-0.01 g/h scope; Many spray nozzle types are that tens even thousands of single spinning needle points are made up, ejection efficiency can be increased to 0.1 ~ 1.0 g/h, but electrostatic interference often occurs, shower nozzle easily stops up, and causes that spinning is discontinuous, the nanofiber diameter homogeneity is difficult to the appearance of shortcomings such as keeping.Porous type has problems such as spinning efficiency is low equally.The representative of roll-type electrostatic spinning is Czech " nanometer spider " technology, and its spinning efficiency is 1 ~ 5g/min, and area density is 0.1 ~ 5g/m
2, nanofiber diameter is in 50 ~ 300 nm scopes, and fabric width has two kinds of 300 and 500 mm.Recently, we have invented high-pressure electrostatic shuttle nano-spun silk device, adopt the slit method to carry out the preparation of nanofiber, slit length (fabric width) is adjustable, its spinning efficiency and nanometer spider are similar, but but continuous feeding, have easy cleaning, low energy consumption, safe and reliable, easy and simple to handle, advantages of environment protection, be suitable for laboratory and industrial amplification production.
Yet we know that what people often needed in basic scientific research is that the raising spinning efficiency prepares sample fast, learns test result as early as possible.Therefore, we attempt single shower nozzle spinning time of each sample of preparation was shortened in a few minutes from several hours even one day, ultrahigh speed is finished the preparation of laboratory spinning sample, for quickening the basic scientific research process, further improving industrialization macroblock quantization preparation efficiency and lay the first stone.For this reason, we have invented this patent.
Summary of the invention
The purpose of this invention is to provide a kind of high-pressure electrostatic electronics shuttle nano-spun silk device, it has installed the electric liquid pump in the liquid storage cylinder bottom on the basis of static shuttle.The electric liquid pump is adding under the action of alternating magnetic field, spinning solution is produced shaking force and the boosting power that makes progress, make several Taylor's vertebras of electrospinning silk liquid level in the liquid storage cylinder under the acting in conjunction of these two power and high-pressure electrostatic field force, be equivalent on unit are, have the spinning at the same time of a plurality of shower nozzles, thereby make electrospinning silk nanofiber number roll up, and then the spinning efficiency in the unit interval also improve thereupon greatly.This device has that emissivity is stronger, nanofiber diameter is adjustable (by adjusting emitter stage and receiving pole relative distance), energy consumption be low, be not subjected to advantages such as environment (temperature/humidity) influence, easy cleaning.
High-pressure electrostatic electronics shuttle nano-spun silk device of the present invention is made up of non-metal frame, metal receiving system, reception substrate, nanofiber, HV generator, electro-thermostat, the casing in electric liquid pump driver, electric liquid pump, liquid storage cylinder, spinning solution chamber;
Wherein, the electric liquid pump is installed in the liquid storage cylinder bottom, by top electrode and bottom electrode, be positioned at upper and lower interelectrode piezoelectric ceramic piece and form, and and drive circuit form electric liquid pump driver; Electric liquid pump driver is installed in the below of electrode, links to each other with bottom electrode with the top electrode of electric liquid pump with another plain conductor by plain conductor;
The outside of liquid storage cylinder, electric liquid pump and electric liquid pump driver is equipped with non-metal frame, and they are constituted one, becomes static electronics shed open;
HV generator connects lead by metal and links to each other with electric liquid pump driver, and links to each other with the electric liquid pump through another plain conductor, and it and static electronics shed open are formed static electronics shuttle jointly;
Another output of HV generator connects lead through another metal and links to each other with the metal receiving system, and the lower end of metal receiving system is loaded with the reception substrate, is used to receive nanofiber, thereby forms the high-voltage electrostatic spinning electric field; The shape of metal receiving system can be dull and stereotyped or netted, and its receiving area is more than 10 times of liquid storage cylinder emission area, and the metal receiving system can be wire netting or metallic plate; Receive the substrate appendix on the metal receiving system, it can be various macromolecule nonwoven fabric, paper, metallic plate;
Electric liquid pump driver provides driving voltage for the electric liquid pump, the electric liquid pump is produced continuously and the mechanical thrust of fluctuation liquid, thereby make the surface of electric spinning solution in the liquid storage cylinder produce Taylor's vertebra, emission liquid stream under the high-voltage electrostatic spinning effect of electric field, form nanofiber, thereby obtain nano fiber non-woven fabric at the reception substrate;
The present invention carries out the electrospinning silk with high-pressure electrostatic electronics shuttle nano-spun silk device transposition in a rectangular box body, and be provided with electro-thermostat in the bottom of rectangular box body, it make temperature in the casing 10 ~ 50 ° of C scopes in, humidity continuous variation 10 ~ 60 RH scopes in.
The electric liquid pump is a piezoelectric, under signal of telecommunication effect, spinning solution is produced boosting power upwards, this boosting power can make its liquid level produce a large amount of Taylor's vertebras, the quantity of taylor cone is by the voltage decision of high voltage source generator, and voltage changes continuously at 0-80 kV.The material of liquid storage cylinder is glass, plastics or pottery, the multiple geometry of spherical in shape, cylinder, and the bottom of cavity is a little less than the electric liquid pump electrode, so that install; Cavity top is higher than about electrode 10 mm, and it is the end with the top electrode; Liquid storage cylinder, electric liquid pump and electric liquid pump driver are mounted to integrative-structure by non-conductive support, wherein, liquid storage cylinder and electric liquid pump are installed in the top of electric liquid pump driver, non-conductive support is a polytetrafluoroethylplastic plastic, its upper end open also has female thread structure, the sidewall of liquid storage cylinder has external thread structure, and then is installed on the non-conductive support.
The metal receiving system is wire netting or metallic plate.
Receiving substrate is macromolecule nonwoven fabric, paper or metal etc.
High-pressure electrostatic electronics shuttle nano-spun silk device of the present invention can carry out the electrospinning silk at unlimited system (no casing), also can carry out the electrospinning silk in an airtight casing, and the volume of casing is greater than 0.3 m
3Simultaneously be provided with electro-thermostat in the bottom of rectangular box body, electro-thermostat make temperature in the casing 10 ~ 50 ° of C scopes in, humidity continuous variation 10 ~ 60 RH% scopes in.Have automaticity height, easy cleaning, safe and reliable, easy and simple to handle, advantage such as environment is good.
Description of drawings
Fig. 1 is a static electronics shuttle nano-spun silk device structural representation of the present invention.
Fig. 2 is PAN nano fibrous membrane of the present invention (left side) and SEM photo (right side).
Fig. 3 is PVP nano fibrous membrane of the present invention (left side) and SEM photo (right side).
Fig. 4 is U nano fibrous membrane of the present invention (left side) and SEM photo (right side).
Fig. 5 is PVA nano fibrous membrane of the present invention (left side) and SEM photo (right side).
Wherein the name of accompanying drawing 1 each parts is called: 1. electric liquid pump driver, 11. plain conductors, 12. another plain conductors, 2. electric liquid pump, 21. top electrodes, 22. bottom electrodes, 23. piezoelectric ceramic pieces, 3. HV generator, 31. metals connect lead, 41. another metals connect leads, 4. the metal receiving system, 5. liquid storage cylinder, 6. electro-thermostat, 7. non-metal frame, 8. nanofiber, 9. receive substrate, 10. casing.
The specific embodiment
The present invention is before carrying out high-voltage electrostatic spinning, with HV generator 3, spinning voltage is adjustable continuously in 0 ~ 80 kV scope, (model that U.S. GAMMA company produces: output ES30P-5W/DDPM) connects lead 31 by metal and is connected to the top electrode 21 of while as the electric liquid pump 2 at 5 ends of liquid storage cylinder, another output of HV generator 3 connects lead 41 by another metal and is connected to metal receiving system 4, forms the high-pressure electrostatic electric field at 5 ends of liquid storage cylinder and 4 of metal receiving systems;
An output of electric liquid pump driver 1 is connected to the top electrode 21 of electric liquid pump 2 by another plain conductor 12, another output of electric liquid pump driver 1 is connected to the bottom electrode 22 of electric liquid pump 2 by plain conductor 11, thereby for electric liquid pump 2 provides driving voltage, make piezoelectric ceramic piece 23(driving voltage 0V---48V, frequency is 0Hz---2.5MHz) alternating magnetic field of generation in liquid storage cylinder 5, electrospinning liquid is under the effect of alternating magnetic field in the liquid storage cylinder 5, having a boosting power and a vibration force to metal receiving system 4 directions produces, these can make its liquid level produce several Taylor's vertebras, further under the high-voltage electrostatic spinning effect of electric field, form jet, splitting becomes nanofiber, obtains nano fiber non-woven fabric on reception substrate 9.
Further, static electronics shuttle nano-spun silk device of the present invention can be placed an airtight casing 10, in casing 10, be provided with electro-thermostat 6, when carrying out the electrospinning silk, open electro-thermostat 6, the model that Shandong universal love company produces is HWJR-B), thus make the temperature and humidity in the whole box body 10 reach the setting requirement, improve the quality and the effect of spinning.
Embodiment 1:
With 0. 4g polyacrylonitrile (PAN, molecular weight: 1,40,000) join in the 9.6 g dimethyl formamides (DMF), utilized the magnetic stirring and dissolving at normal temperatures 2 hours, obtain electric spinning solution; Electric spinning solution 10 ml that obtain are joined in the liquid storage cylinder 5 in the casing 10.Regulate the automatically controlled thermostat in the casing, temperature and humidity reaches 25 ℃ and 30RH% respectively, and level 33.5 cm on dash receiver and the reservoir stablized 2 minutes.
Embodiment 2:
With 0.35g polyvinyl pyrrole Lopa Nationality alkane ketone (PVP, molecular weight: 1,50,000) join in the 9.65 g ethanol, utilize the magnetic stirring and dissolving to obtain electric spinning solution in 2 hours at normal temperatures; Electric spinning solution 10 ml that obtain are joined in the liquid storage cylinder 5 in the casing 10.Regulate the automatically controlled thermostat in the casing, temperature and humidity reaches 25 ℃ and 30RH% respectively, and level 33.5 cm on dash receiver and the reservoir stablized 2 minutes.
Open HV generator 3 then, slowly transfer to 70 kV.At this moment, the surface of liquid storage cylinder 5 has jet to occur, and splitting takes place, and has the PVP nano fiber non-woven fabric to form on the reception substrate, and spinning finishes in 8 minutes, the about 0.043g/min of spinning efficiency, and average diameter is 300 nm, 21 g/m
2, the photo of PVP nano fibrous membrane and SEM image shows are in accompanying drawing 3[parameter: 3.5 wt%, U=70 kV, d=33.5 cm, substrate: PP nonwoven fabric] in.
Embodiment 3:
With 1.0g polyurethane (PU, molecular weight: 1,50,000) join in the mixed solution of 9.0 g oxolane/dimethyl formamides (mol ratio 3:4), utilize the magnetic stirring and dissolving to obtain electric spinning solution in 4 hours at normal temperatures; Electric spinning solution 10 ml that obtain are joined in the liquid storage cylinder 5 in the casing 10.Regulate the automatically controlled thermostat in the casing, temperature and humidity reaches 25 ℃ and 30RH% respectively, and level 19.5 cm on dash receiver and the reservoir stablized 2 minutes.
Open HV generator 3 then, slowly transfer to 80 kV.At this moment, the surface of storage cavity 5 has jet to occur, and splitting takes place, and has the PU nano fiber non-woven fabric to form on the reception substrate, and spinning finishes in 10 minutes, the about 0.1g/ branch of spinning efficiency, and average diameter is 500 nm, 50 g/m
2, the photo of PVP nano fibrous membrane and SEM image shows are in accompanying drawing 4[parameter: 10 wt%, U=80 kV, d=19.5 cm, substrate: PP nonwoven fabric] in.
Embodiment 4:
With 0.6g polyvinyl alcohol (PVA, molecular weight: 90,000) join in the 9.4 g aqueous solution, utilize the magnetic stirring and dissolving to obtain electric spinning solution in 4 hours at normal temperatures; Electric spinning solution 10 ml that obtain are joined in the liquid storage cylinder 5 in the casing 10.Regulate the automatically controlled thermostat in the casing, temperature and humidity reaches 25 ℃ and 30RH% respectively, and level 19.5 cm on dash receiver and the reservoir stablized 2 minutes.
Open HV generator 3 then, slowly transfer to 80 kV.At this moment, the surface of storage cavity 5 has jet to occur, and splitting takes place, and has the PVA nano fiber non-woven fabric to form on the reception substrate, and spinning finishes in 12 minutes, the about 0.05g/ branch of spinning efficiency, and average diameter is 500 nm, 25 g/m
2, the photo of PVP nano fibrous membrane and SEM image shows are in accompanying drawing 5[parameter: 6 wt%, U=80 kV, d=19.5 cm, substrate: PP nonwoven fabric] in.
Claims (6)
1. high-pressure electrostatic electronics shuttle nano-spun silk device is characterized in that: by non-metal frame (7), the metal receiving system (4) in electric liquid pump driver (1), electric liquid pump (2), liquid storage cylinder (5), spinning solution chamber, receive substrate (9), nanofiber (8), HV generator (3), electro-thermostat (6), casing (10) and form;
Electric liquid pump (2) is installed in liquid storage cylinder (5) bottom, by top electrode (21) and bottom electrode (22), be positioned at upper and lower interelectrode piezoelectric ceramic piece (23) and form; Electric liquid pump driver (1) is installed in the below of electrode, links to each other with bottom electrode (22) with the top electrode (21) of electric liquid pump (2) with another plain conductor (12) by plain conductor (11);
The outside of liquid storage cylinder (5), electric liquid pump (2) and electric liquid pump driver (1) is equipped with non-metal frame (7), and they are constituted one, becomes static electronics shed open;
HV generator (3) connects lead (31) by metal and links to each other with electric liquid pump driver (1), and links to each other with electric liquid pump (2) through another plain conductor (12), and it and static electronics shed open are formed static electronics shuttle jointly;
Another output of HV generator (3) connects lead (41) through another metal and links to each other with metal receiving system (4), and the lower end of metal receiving system (4) is loaded with and receives substrate (9), is used to receive nanofiber (8).
2. high-pressure electrostatic electronics shuttle nano-spun silk device as claimed in claim 1, it is characterized in that: high-pressure electrostatic electronics shuttle nano-spun silk device transposition is carried out the electrospinning silk in a rectangular box body (10), and be provided with electro-thermostat (6) in the bottom of rectangular box body (10), it make temperature in the casing (10) 10 ~ 50 ° of C scopes in, humidity continuous variation 10 ~ 60 RH scopes in.
3. high-pressure electrostatic electronics shuttle nano-spun silk device as claimed in claim 2, it is characterized in that: the electric liquid pump is a piezoelectric, under signal of telecommunication effect, spinning solution is produced boosting power upwards, this boosting power can make its liquid level produce a large amount of Taylor's vertebras, the quantity of taylor cone is by the voltage decision of high voltage source generator, and voltage changes continuously at 0-80 kV.
4. high-pressure electrostatic electronics shuttle nano-spun silk device as claimed in claim 1, it is characterized in that: the material of spinning liquid storage cylinder (5) is glass, plastics or pottery, the multiple geometry of spherical in shape, cylinder, the bottom of liquid storage cylinder (5) is top electrode (21) a little less than the electric liquid pump, so that install; Cavity top is higher than about bottom electrode (22) 10 mm.
5. high-pressure electrostatic electronics shuttle nano-spun silk device as claimed in claim 1, it is characterized in that: metal receiving system (4) is wire netting or metallic plate.
6. high-pressure electrostatic electronics shuttle nano-spun silk device as claimed in claim 1 is characterized in that: receiving substrate (9) is macromolecule nonwoven fabric, paper or metal.
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| CN 201110217431 CN102268747B (en) | 2011-08-01 | 2011-08-01 | High-voltage electrostatic electron shuttle nano-spinning device |
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| CN 201110217431 CN102268747B (en) | 2011-08-01 | 2011-08-01 | High-voltage electrostatic electron shuttle nano-spinning device |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102719906A (en) * | 2012-07-12 | 2012-10-10 | 苏州大学 | Electrostatic spinning device |
| CN102719905A (en) * | 2012-07-12 | 2012-10-10 | 苏州大学 | Electrostatic spinning device |
| CN103215658A (en) * | 2012-01-21 | 2013-07-24 | 南京理工大学 | Novel static electrospinning method |
| CN103898620A (en) * | 2014-03-14 | 2014-07-02 | 长春吉纳科技有限责任公司 | High voltage static power shuttle nano-spinning device |
| CN104803345A (en) * | 2015-04-17 | 2015-07-29 | 广东工业大学 | Micro-nano structure producing device and method |
| 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 |
| CN110561750A (en) * | 2018-06-05 | 2019-12-13 | 常州高凯精密机械有限公司 | Electrostatic dotting device based on piezoelectric vibration |
| CN111485329A (en) * | 2020-03-23 | 2020-08-04 | 东华大学 | Nanofiber flocculus with sandwich structure and preparation method thereof |
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| CN1986913A (en) * | 2006-10-27 | 2007-06-27 | 东华大学 | Vibrating electrostatic spinning device for nano fiber |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103215658A (en) * | 2012-01-21 | 2013-07-24 | 南京理工大学 | Novel static electrospinning method |
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| CN103898620A (en) * | 2014-03-14 | 2014-07-02 | 长春吉纳科技有限责任公司 | High voltage static power shuttle nano-spinning device |
| CN104803345A (en) * | 2015-04-17 | 2015-07-29 | 广东工业大学 | Micro-nano structure producing device and method |
| CN104803345B (en) * | 2015-04-17 | 2017-06-16 | 广东工业大学 | A kind of micro-nano structure manufacture device and method |
| 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 |
| CN110561750A (en) * | 2018-06-05 | 2019-12-13 | 常州高凯精密机械有限公司 | Electrostatic dotting device based on piezoelectric vibration |
| CN111485329A (en) * | 2020-03-23 | 2020-08-04 | 东华大学 | Nanofiber flocculus with sandwich structure and preparation method thereof |
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| CN102268747B (en) | 2013-03-27 |
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