CN103290491B - Extensive electrostatic spinning machine - Google Patents
Extensive electrostatic spinning machine Download PDFInfo
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- CN103290491B CN103290491B CN201310183866.6A CN201310183866A CN103290491B CN 103290491 B CN103290491 B CN 103290491B CN 201310183866 A CN201310183866 A CN 201310183866A CN 103290491 B CN103290491 B CN 103290491B
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Abstract
The present invention relates to electrostatic spinning and nano material systems technology field, more specifically, relate to a kind of device of large-scale production nano fibrous membrane.Extensive electrostatic spinning machine, wherein, comprises high-voltage static power, array pin spinning system, gathering system and intelligence control system; Array pin spinning system comprise constant flow pump module, with constant flow pump model calling become silk module, high-voltage static power positive pole is connected with one-tenth silk module; Gathering system comprises transmission module, the film forming layer be connected with transmission module, is fixed on conductive layer below film forming layer, and high-voltage static power negative pole is connected with conductive layer by wire; Intelligence control system controls propelling, the backward movement of constant flow pump module, becomes the rotation of silk module, translation motion, and the rotating forward of transmission module, reversion action thus be controlled to rete displacement and collect fiber homogeneous film formation.The present invention has working condition and cost requirement is low, operating process is brief and intelligent controlled, production efficiency is high and the feature such as homogeneous.
Description
Technical field
The present invention relates to electrostatic spinning and nano material systems technology field, more specifically, relate to a kind of device of large-scale production nano fibrous membrane.
Background technology
Electrostatic spinning a kind ofly makes polymer solution or melt under electrostatic interaction, produce taylor cone and spray to be stretched as the spinning process of micron or nano-scale fiber.As far back as 1934, Formhals just reported the invention utilizing high-voltage electrostatic field to carry out spinning in its patent US1975504.Through the development of nearly 80 years, electrostatic spinning technique was ripe day by day, and the electricity spinning fibre of some material has even dropped into application in fields such as separation, organizational projects.But electrostatic spinning is small-scale preparation mode substantially for a long time, and output is humble, and supply falls short of demand.Cannot volume production to the development of this technology, universally cause great obstruction.In recent years, people little by little appreciated this technical bottleneck of electrospinning, began one's study and prepared the device of electrospinning fibre in enormous quantities, to meet industrialization demand, obtained certain achievement.But existing industrialization electrostatic spinning machine exist to the defect such as spinning condition harsh (as temperature, vacuum, material category etc.), large-scale degree is low, volume production ability is weak, unstable product quality.
Have researcher on patent CN101985793, disclose a kind of device of method of electrostatic spinning continuous production bonded fabric product, polymer melt is mainly processed as nano fibrous membrane by electrospinning by this device.But polymer is in melt heating state when it is produced, easily oxidizedly affect quality and cost is higher, not easily realize extensive preparation, not industrialization truly.
At present, the device of volume production electrostatic spinning fiber remains in various defect, therefore needs further improvement.
Summary of the invention
The present invention is for overcoming at least one defect described in above-mentioned prior art, a kind of extensive electrostatic spinning machine is provided, the industry requirements such as the controllability of the universality of working condition, the high efficiency of product-collecting and array pin electrospinning system spinning process can be reached, by using the polymer solution of heterogeneity, concentration, produce the nano fibrous membrane meeting mechanical performance, the requirement of biocompatibility different application.
For solving the problems of the technologies described above, the technical solution used in the present invention is: extensive electrostatic spinning machine, wherein, comprises high-voltage static power, array pin spinning system, gathering system and intelligence control system; Array pin spinning system comprise constant flow pump module, with constant flow pump model calling become silk module, high-voltage static power positive pole is connected with one-tenth silk module; Gathering system comprises transmission module, the film forming layer be connected with transmission module, is fixed on conductive layer below film forming layer, and high-voltage static power negative pole is connected with conductive layer by wire;
Intelligence control system respectively with constant flow pump module, become silk module, transmission module to be electrically connected, intelligence control system controls propelling, the backward movement of constant flow pump module, become the rotation of silk module, translation motion, and the rotating forward of transmission module, reversion action thus be controlled to rete displacement and collect fiber homogeneous film formation.
Further, described one-tenth silk module and the distance of film forming layer are 10 ~ 50cm.
Further, described one-tenth silk module comprises syringe needle, and needle length is 4 ~ 16cm.It is concentrated not that needle length is less than the too short electric field that causes of 4cm, and needle length is greater than the long not easily maintaining of 16cm.
Further, described syringe needle is array syringe needle, and array syringe needle is row with 5 ~ 15 pins, and one is classified as a unit, the independent liquor charging of each unit.So both can ensure that hydraulic pressure was identical, even wire vent, is also convenient to regulon number and controls output.
Further, described array syringe needle is provided with isolated insulation cover, and the exposed portion under isolated insulation cover is 1/3rd of array needle length.Isolated insulation cover contributes to stablizing and concentrates electric field, reduces electric jamming between syringe needle.
Further, described conductive layer and high-voltage static power negative pole make grounding simultaneously, can avoid producing electrostatic in preparation process, security prepared by raising fiber and stability.
Further, propelling or the astern speed of described intelligence control system control constant flow pump module are 1 ~ 150ml/h, and constant flow pump module has liquid suction function, and the suck-back speed of its imbibition is 50 ~ 150ml/h.Liquid suction function namely production at the end of intelligence control system suitably regulate constant flow pump suck-back part solution to affect product pattern to prevent it from dripping in film forming layer.
Further, the linear velocity that described intelligence control system controls the forward or reverse of transmission module is 0 ~ 100mm/s, and accuracy is 0.01mm/s.It is 1 ~ 100mm/s that described intelligence control system is controlled to the speed that a module comes and goes translation perpendicular to film forming layer, and accuracy is 0.01mm/s.
Further, the material of described film forming layer is easily film forming or the material to be processed such as paper material, polymer film, common non-woven fabric, paper material, polymer film, common non-woven fabric are conducive to the stripping of film forming and nano fibrous membrane, and material to be processed can be used for surface directly covers nano fibrous membrane.
Compared with prior art, beneficial effect is:
Extensive electrostatic spinning machine structural reduction of the present invention, modularization is clear, and installation, maintenance cost is cheap, volume production superior performance, is applicable to Batch assemblage and goes into operation.
Described extensive electrostatic spinning machine is easy and simple to handle easy to learn, and production procedure is controlled, from Prof. Du Yucang to natural polymer, all within the scope of woven material, can generally be applicable to the nano fibrous membrane preparing various high strength, biocompatibility and degradation property.
Described extensive electrostatic spinning machine is under intelligence control system regulation and control, and each system had both been divided the work clearly, independent operating, again energy collaborative work simultaneously, makes the advantage of solution-polymerized SBR obtain larger performance.
The electrospun fiber membrane controlled diameter produced of described extensive electrostatic spinning machine built in nanoscale to micron order not etc., have specific area greatly, porosity advantages of higher, the various fields such as filtration, catalysis, super dependent sensor and organizational project can be widely used in.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic front view of the extensive electrostatic spinning machine of the present invention.
Fig. 2 is the overall structure schematic top plan view of the extensive electrostatic spinning machine of the present invention.
Fig. 3 is the production operation flow chart of steps of the extensive electrostatic spinning machine of the present invention.
Detailed description of the invention
Accompanying drawing, only for exemplary illustration, can not be interpreted as the restriction to this patent; In order to better the present embodiment is described, some parts of accompanying drawing have omission, zoom in or out, and do not represent the size of actual product; To those skilled in the art, in accompanying drawing, some known features and explanation thereof may be omitted is understandable.
As shown in Figure 1, 2, extensive electrostatic spinning machine, comprises high-voltage static power 1, array pin spinning system 2, gathering system 3 and intelligence control system 4; The one-tenth silk module 6 that array pin spinning system 2 comprises constant flow pump module 5, is connected with constant flow pump module 5, high-voltage static power 1 positive pole is connected with one-tenth silk module 6; Gathering system 3 comprises transmission module 7, the film forming layer 8 be connected with transmission module 7, is fixed on conductive layer 9 below film forming layer 8, and high-voltage static power 1 negative pole is connected with conductive layer 9 by wire;
Intelligence control system 4 respectively with constant flow pump module 5, become silk module 6, transmission module 7 is electrically connected, intelligence control system 4 controls propelling, the backward movement of constant flow pump module 5, become the rotation of silk module 6, translation motion, and the rotating forward of transmission module 7, reversion action thus be controlled to rete 8 displacement and collect fiber homogeneous film formation.
Become silk module 6 to install the array syringe needle that two row's length are 4 ~ 16cm, often arrange 5 ~ 15 pins, the distance of syringe needle and film forming layer is 10 ~ 50cm, and every pin adds isolated insulation cover, only exposes syringe needle 1/3rd to reduce electric jamming between syringe needle.Film forming layer 8 and conductive layer 9 selected materials are respectively oilpaper and tinfoil; High-voltage static power 1 negative pole is connected with conductive layer 9 by wire, and does grounding simultaneously, Absorbable organic halogens electric field and improve production security; Intelligence control system 4 can arrange the propelling of constant flow pump module 5 respectively or astern speed is 1 ~ 150ml/h, suck-back speed is 50 ~ 150ml/h, become silk module 6 alternating translational speed to be 1 ~ 100mm/s, the linear velocity of the forward or reverse of transmission module 7 is 0 ~ 100mm/s.
As shown in Figure 3,
Nano fibrous membrane is produced as raw material using PLLA
1. the preparation of spinning solution: take 30 grams of PLLA(molecular weight=200,000 dalton), be dissolved in 500ml(9:1, CH2Cl2/DMF, v/v) in solvent, obtained 6%(wt%, lower same) PLLA solution, with sealed membrane sealing, magnetic agitation 5 hours is stand-by until solution transparent and homogeneous.
2. production process: get step 1 gained solution 100ml and inject constant flow pump module 5, opening the fltting speed that intelligence control system 4 arranges constant flow pump module 5 is 20ml/h, become silk module 6 alternating translational speed to be 50mm/s, the speed that unreels (i.e. the linear velocity of forward or reverse) of transmission module 7 is 0.8mm/s.Array syringe needle and film forming layer distance is regulated to be 20cm.Open high-voltage static power 1, regulation voltage level is 25kV, observes whether high-voltage static power 1 current value is 0mA, guarantees leakproof, starts spinning.
3. 5 hours spinning time, remain solution in constant flow pump module 5, it is 50ml/h that intelligence control system 4 controls constant flow pump module 5 suck-back speed, prevents solution from falling and destroys tunica fibrosa pattern.Close high-voltage static power 1 and intelligence control system 4.
Gained PLLA nano fiber non-woven fabric thickness is even, and long 1.44m, wide 0.5m, fibre diameter is 500nm ~ 5 μm.
Obviously, the above embodiment of the present invention is only for example of the present invention is clearly described, and is not the restriction to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all embodiments.All any amendments done within the spirit and principles in the present invention, equivalent to replace and improvement etc., within the protection domain that all should be included in the claims in the present invention.
Claims (4)
1. extensive electrostatic spinning machine, is characterized in that, comprise high-voltage static power (1), array pin spinning system (2), gathering system (3) and intelligence control system (4); The one-tenth silk module (6) that array pin spinning system (2) comprises constant flow pump module (5), is connected with constant flow pump module (5), high-voltage static power (1) positive pole is connected with one-tenth silk module (6); Gathering system (3) comprise transmission module (7), the film forming layer (8) be connected with transmission module (7), be fixed on film forming layer (8) below conductive layer (9), high-voltage static power (1) negative pole is connected with conductive layer (9) by wire;
Intelligence control system (4) respectively with constant flow pump module (5), become silk module (6), transmission module (7) is electrically connected, intelligence control system (4) controls propelling, the backward movement of constant flow pump module (5), become the rotation of silk module (6), translation motion, and the rotating forward of transmission module (7), reversion action thus be controlled to rete (8) displacement and collect fiber homogeneous film formation;
Described one-tenth silk module (6) is 10 ~ 50cm with the distance of film forming layer (8);
Described one-tenth silk module (6) comprises syringe needle, and needle length is 4 ~ 16cm;
Described syringe needle is array syringe needle (11), and array syringe needle (11) is row with 5 ~ 15 pins, and one is classified as a unit, the independent liquor charging of each unit;
Described array syringe needle (11) is provided with isolated insulation cover (10), and the exposed portion under isolated insulation cover (10) is 1/3rd of array syringe needle (11) length;
Propelling or the astern speed of described intelligence control system (4) control constant flow pump module (5) are 1 ~ 150ml/h, and constant flow pump module (5) has liquid suction function, and the suck-back speed of its imbibition is 50 ~ 150ml/h.
2. extensive electrostatic spinning machine according to claim 1, is characterized in that, the linear velocity that described intelligence control system (4) controls the forward or reverse of transmission module (7) is 0 ~ 100mm/s, and accuracy is 0.01mm/s.
3. extensive electrostatic spinning machine according to claim 1, is characterized in that, described intelligence control system (4) is controlled to a module (6), and to come and go the speed of translation perpendicular to film forming layer (8) be 1 ~ 100mm/s, and accuracy is 0.01mm/s.
4., according to the arbitrary described extensive electrostatic spinning machine of claims 1 to 3, it is characterized in that, the material of described film forming layer (8) is paper material, polymer film, common non-woven fabric.
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| CN201310183866.6A CN103290491B (en) | 2013-05-17 | 2013-05-17 | Extensive electrostatic spinning machine |
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| CN103290491B true CN103290491B (en) | 2015-12-09 |
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| CN103696024B (en) * | 2013-12-05 | 2015-10-07 | 厦门大学 | A kind of patterned nano-fiber preparation facilities |
| CN105887214B (en) * | 2014-08-25 | 2019-06-21 | 刘钢 | A kind of electrostatic spinning film forming apparatus |
| CN106498509A (en) * | 2015-09-06 | 2017-03-15 | 福建省贝思达环保投资有限公司 | Ordered nano-fibers batch prepares electrostatic spinning apparatus |
Citations (5)
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|---|---|---|---|---|
| CN101565878A (en) * | 2009-05-27 | 2009-10-28 | 东华大学 | Ultrathin nanometer cobweb/nanometer fiber composite protective material manufacturing device |
| CN201372354Y (en) * | 2009-01-14 | 2009-12-30 | 南通大学 | Automatic electrostatic spinning device |
| CN101694041A (en) * | 2009-10-22 | 2010-04-14 | 西安工程大学 | Electrostatic spinning device of continuous nanometer fiber net and method for preparing nanometer fiber net |
| CN101775706A (en) * | 2010-03-03 | 2010-07-14 | 天津工业大学 | Production method of micro nanometer fiber non-woven fabric and device |
| CN102828260A (en) * | 2012-09-18 | 2012-12-19 | 天津工业大学 | Centrifugal needle-free electrostatic spinning device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4670714B2 (en) * | 2006-04-11 | 2011-04-13 | パナソニック株式会社 | Electrostatic spraying apparatus and electrostatic spraying method |
| US8186987B2 (en) * | 2007-02-21 | 2012-05-29 | Panasonic Corporation | Nano-fiber manufacturing apparatus |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201372354Y (en) * | 2009-01-14 | 2009-12-30 | 南通大学 | Automatic electrostatic spinning device |
| CN101565878A (en) * | 2009-05-27 | 2009-10-28 | 东华大学 | Ultrathin nanometer cobweb/nanometer fiber composite protective material manufacturing device |
| CN101694041A (en) * | 2009-10-22 | 2010-04-14 | 西安工程大学 | Electrostatic spinning device of continuous nanometer fiber net and method for preparing nanometer fiber net |
| CN101775706A (en) * | 2010-03-03 | 2010-07-14 | 天津工业大学 | Production method of micro nanometer fiber non-woven fabric and device |
| CN102828260A (en) * | 2012-09-18 | 2012-12-19 | 天津工业大学 | Centrifugal needle-free electrostatic spinning device |
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