CN103290491A - Large-scale electrostatic spinning machine - Google Patents
Large-scale electrostatic spinning machine Download PDFInfo
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- CN103290491A CN103290491A CN2013101838666A CN201310183866A CN103290491A CN 103290491 A CN103290491 A CN 103290491A CN 2013101838666 A CN2013101838666 A CN 2013101838666A CN 201310183866 A CN201310183866 A CN 201310183866A CN 103290491 A CN103290491 A CN 103290491A
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Abstract
The invention relates to the technical field of electrostatic spinning and nanometer material systems, particularly relates to device for manufacturing nano-fiber membranes on a large scale, and discloses a large-scale electrostatic spinning machine which comprises a high-voltage electrostatic source, a spinning system with arrayed needles, a collecting system and an intelligent control system. The spinning system with the arrayed needles comprises a constant-flow pump module and a yarn forming module, the yarn forming module is connected with the constant-flow pump module, and an anode of the high-voltage electrostatic source is connected with the yarn forming module; the collecting system comprises transmission modules, a membrane forming layer and a conducting layer, the membrane forming layer is connected with the transmission modules, the conducting layer is fixed to the lower side of the membrane forming layer, and a cathode of the high-voltage electrostatic source is connected with the conducting layer by a conducting wire; the intelligent control system controls advancing and retreating actions of the constant-flow pump module, rotation and translation actions of the yarn forming module and clockwise rotation and anticlockwise rotation actions of the transmission modules, so that the membrane forming layer can directionally move under the control of the intelligent control system, fibers are collected, and membranes can be uniformly formed by the fibers. The large-scale electrostatic spinning machine has the advantages that the large-scale electrostatic spinning machine has low requirements on production conditions and the cost, is simple in operational process and high in production efficiency, and is intelligent and controllable, the texture of each membrane is uniform, and the like.
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 is a kind ofly to make polymer solution or melt produce taylor cone under electrostatic interaction and spray the spinning process be stretched as micron or nano-scale fiber.As far back as 1934, Formhals just reported the invention that utilizes the high-voltage electrostatic field to carry out spinning in its patent US1975504.Through nearly 80 years development, electrostatic spinning technique is ripe day by day, and the electricity spinning fibre of some material is in field such as separation, organizational project even dropped into application.Yet electrostatic spinning is the small-scale preparation mode substantially for a long time, and output is humble, and supply falls short of demand.Can't volume production to the development of this technology, popularize and caused great obstruction.In recent years, people had little by little recognized this technical bottleneck of electrospinning, and the device of the preparation electrospinning fibre in enormous quantities that begins one's study to satisfy the industrialization demand, has obtained certain achievement.But existing industrialization electrostatic spinning machine exist to spinning condition harsh (as temperature, vacuum, material category etc.), defectives such as large-scale degree is low, the volume production ability weak, unstable product quality.
The researcher is arranged on patent CN101985793, disclose the device that a kind of method of electrostatic spinning prepares bonded fabric product continuously, this device mainly is by electrospinning polymer melt to be processed as nano fibrous membrane.But polymer was in the melt heating state when it was produced, and easily oxidizedly influenced quality and cost is higher, be difficult for realizing mass preparation, and be not industrialization truly.
At present, the device of volume production electrostatic spinning fiber remains in various defectives, therefore needs further to improve.
Summary of the invention
The present invention is for overcoming the described at least a defective of above-mentioned prior art, a kind of extensive electrostatic spinning machine is provided, can reach the universality of working condition, the high efficiency of product collection and the industry requirements such as controllability of array pin electrospinning system spinning process, by using the polymer solution of heterogeneity, concentration, produce the nano fibrous membrane that satisfies 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; The one-tenth silk module that array pin spinning system comprises the constant flow pump module, is connected with the constant flow pump module, the high-voltage static power positive pole links to each other with becoming the silk module; Gathering system comprises transmission module, the film forming layer that is connected with transmission module, is fixed in the conductive layer of film forming layer below, and the high-voltage static power negative pole links to each other with conductive layer by lead;
Intelligence control system respectively with the constant flow pump module, become silk a module, transmission module to be electrically connected, propelling, the backward movement of intelligence control system control constant flow pump module, become rotation, the translation motion of silk module, thereby and the just commentaries on classics of transmission module, counter-rotating action be controlled to the directed mobile even film forming of fiber of collecting of rete.
Further, the distance of described one-tenth silk module and film forming layer is 10～50 cm.
Further, described one-tenth silk module comprises syringe needle, and needle length is 4～16 cm.Needle length is concentrated inadequately less than the too short electric field that causes of 4 cm, and needle length is difficult for maintaining greater than 16 cm are long.
Further, described syringe needle is the array syringe needle, and the array syringe needle is row with 5～15 pins, and one classifies a unit as, the independent liquor charging in each unit.So both can guarantee that hydraulic pressure was identical, evenly wire vent also is convenient to the regulon number and is controlled output.
Further, described array syringe needle is provided with the isolated insulation cover, and the exposed portions serve under the isolated insulation cover is 1/3rd of array needle length.The isolated insulation cover helps stable and concentrated electric field, reduces electric field interference between syringe needle.
Further, described conductive layer and high-voltage static power negative pole are done ground connection processing simultaneously, can avoid producing in the preparation process static, improve the security and stability of fiber production.
Further, propelling or the astern speed of described intelligence control system control constant flow pump module are 1～150 ml/h, and the constant flow pump module has the imbibition function, and the suck-back speed of its imbibition is 50～150 ml/h.The imbibition function namely when produce finishing intelligence control system suitably regulate constant flow pump suck-back part solution and influence the product pattern to prevent that it from dripping in film forming layer.
Further, the linear velocity of the forward or reverse of described intelligence control system control transmission module is 0～100 mm/s, and accuracy is 0.01 mm/s.It is 1～100 mm/s perpendicular to the speed that film forming layer comes and goes translation that described intelligence control system is controlled to a module, and accuracy is 0.01 mm/s.
Further, the material of described film forming layer is easily film forming or 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 peeling off of film forming and nano fibrous membrane, and material to be processed can be used for directly covering nano fibrous membrane of surface.
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, and the volume production superior performance is fit to assembling in batches and goes into operation.
Easy easy and simple to handle of described extensive electrostatic spinning machine, production procedure is controlled, but from manually being synthesized to natural polymer all in the woven material scope, generally is applicable to the nano fibrous membrane of preparation various high mechanical strengths, biocompatibility and degradation property.
Described extensive electrostatic spinning machine is under the intelligence control system regulation and control, and each system had both divided the work clearly, independent operating, and energy collaborative work simultaneously again makes the advantage of solution spinning obtain bigger performance.
The electrospun fiber membrane controllable diameter that described extensive electrostatic spinning machine is produced does not wait to micron order built in nanoscale, has that specific area is big, the porosity advantages of higher, can be widely used in various fields such as filtration, catalysis, super dependent sensor and organizational project.
Description of drawings
Fig. 1 is that the overall structure master of the extensive electrostatic spinning machine of the present invention looks schematic diagram.
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.
The specific embodiment
Accompanying drawing only is used for exemplary illustration, can not be interpreted as the restriction to this patent; For better explanation present embodiment, some parts of accompanying drawing have omission, amplify or dwindle, and do not represent the size of actual product; To those skilled in the art, in the accompanying drawing some known features and explanation thereof may to omit be 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 links to each other with becoming silk module 6; Gathering system 3 comprises transmission module 7, the film forming layer 8 that is connected with transmission module 7, is fixed in the conductive layer 9 of film forming layer 8 belows, and high-voltage static power 1 negative pole links to each other with conductive layer 9 by lead;
Intelligence control system 4 respectively with constant flow pump module 5, become silk a module 6, transmission module 7 to be electrically connected, propelling, the backward movement of intelligence control system 4 control constant flow pump modules 5, become rotation, the translation motion of silk module 6, thereby and the just commentaries on classics of transmission module 7, counter-rotating action be controlled to the rete 8 directed mobile even film forming of fibers of collecting.
Becoming silk module 6 that two row's length are installed is the array syringe needle of 4～16 cm, every row's 5～15 pins, and the distance of syringe needle and film forming layer is 10～50 cm, and every pin adds the isolated insulation cover, and electric field disturbs between syringe needle to reduce only to expose syringe needle 1/3rd.Film forming layer 8 is respectively oilpaper and tinfoil with conductive layer 9 selected materials; High-voltage static power 1 negative pole links to each other with conductive layer 9 by lead, and does ground connection processing simultaneously, but consistent electric field and raising production security; Propelling or astern speed that intelligence control system 4 can arrange constant flow pump module 5 respectively are 1～150 ml/h, suck-back speed is 50～150 ml/h, becoming silk module 6 reciprocal point-to-point speeds is 1～100 mm/s, and the linear velocity of the forward or reverse of transmission module 7 is 0～100 mm/s.
As shown in Figure 3,
Produce nano fibrous membrane with PLLA as raw material
1. the preparation of spinning solution: take by weighing 30 gram PLLA(molecular weight=200,000 dalton), be dissolved in 500 ml(9:1, CH2Cl2/DMF, v/v) in the solvent, make 6%(wt%, down together) PLLA solution, seal with sealing film, magnetic agitation 5 hours is stand-by until the solution transparent and homogeneous.
2. production process: get step 1 gained solution 100 ml and inject constant flow pump module 5, opening the fltting speed that intelligence control system 4 arranges constant flow pump module 5 is 20 ml/h, becoming silk module 6 reciprocal point-to-point speeds is 50 mm/s, and the speed that unreels of transmission module 7 (being the linear velocity of forward or reverse) is 0.8 mm/s.Regulating array syringe needle and film forming layer distance is 20cm.Open high-voltage static power 1, regulation voltage level is 25 kV, observes whether high-voltage static power 1 current value is 0 mA, guarantees leakproof, the beginning spinning.
3. 5 hours spinning time, remain solution in the constant flow pump module 5, intelligence control system 4 control constant flow pump modules 5 suck-back speed are 50 ml/h, prevent that solution from falling destruction tunica fibrosa pattern.Close high-voltage static power 1 and intelligence control system 4.
Gained PLLA nano fiber non-woven fabric thickness is even, long 1.44 m, and wide 0.5 m, fibre diameter are 500nm ~ 5 μ m.
Obviously, the above embodiment of the present invention only is for example of the present invention clearly is described, and is not to be 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 need not also can't give all embodiments exhaustive.All any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., all should be included within the protection domain of claim of the present invention.
Claims (9)
1. extensive electrostatic spinning machine is characterized in that, comprises high-voltage static power (1), array pin spinning system (2), gathering system (3) and intelligence control system (4); Array pin spinning system (2) comprises constant flow pump module (5), the one-tenth silk module (6) that is connected with constant flow pump module (5), and high-voltage static power (1) is anodal to link to each other with becoming silk module (6); Gathering system (3) comprises transmission module (7), the film forming layer (8) that is connected with transmission module (7), is fixed in the conductive layer (9) of film forming layer (8) below, and high-voltage static power (1) negative pole links to each other with conductive layer (9) by lead;
Intelligence control system (4) respectively with constant flow pump module (5), become silk a module (6), transmission module (7) to be electrically connected, propelling, the backward movement of intelligence control system (4) control constant flow pump module (5), become rotation, the translation motion of silk module (6), and transmission module (7) thus just commentaries on classics, counter-rotating action be controlled to the directed mobile even film forming of fiber of collecting of rete (8).
2. extensive electrostatic spinning machine according to claim 1 is characterized in that, described one-tenth silk module (6) is 10～50 cm with the distance of film forming layer (8).
3. extensive electrostatic spinning machine according to claim 1 is characterized in that, described one-tenth silk module (6) comprises syringe needle, and needle length is 4～16 cm.
4. extensive electrostatic spinning machine according to claim 3 is characterized in that, described syringe needle is array syringe needle (11), and array syringe needle (11) is row with 5～15 pins, and one classifies a unit as, the independent liquor charging in each unit.
5. extensive electrostatic spinning machine according to claim 4 is characterized in that, described array syringe needle (11) is provided with isolated insulation cover (10), and the exposed portions serve under the isolated insulation cover (10) is 1/3rd of array syringe needle (11) length.
6. extensive electrostatic spinning machine according to claim 1, it is characterized in that, propelling or the astern speed of described intelligence control system (4) control constant flow pump module (5) are 1～150 ml/h, constant flow pump module (5) has the imbibition function, and the suck-back speed of its imbibition is 50～150 ml/h.
7. extensive electrostatic spinning machine according to claim 1 is characterized in that, the linear velocity of the forward or reverse of described intelligence control system (4) control transmission module (7) is 0～100 mm/s, and accuracy is 0.01 mm/s.
8. extensive electrostatic spinning machine according to claim 1 is characterized in that, it is 1～100 mm/s perpendicular to the speed that film forming layer (8) comes and goes translation that described intelligence control system (4) is controlled to a module (6), and accuracy is 0.01 mm/s.
9. according to the arbitrary described extensive electrostatic spinning machine of claim 1 to 8, it is characterized in that the material of described film forming layer (8) is paper material, polymer film, common non-woven fabric or material to be processed.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103696024A (en) * | 2013-12-05 | 2014-04-02 | 厦门大学 | Patterned nano-fiber preparation device |
| CN105887214A (en) * | 2014-08-25 | 2016-08-24 | 刘钢 | Static spinning film making device |
| 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 |
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| JP2007277775A (en) * | 2006-04-11 | 2007-10-25 | Matsushita Electric Ind Co Ltd | Electrostatic spraying device and electrostatic spraying method |
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| CN201372354Y (en) * | 2009-01-14 | 2009-12-30 | 南通大学 | Automatic electrostatic spinning device |
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| 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 |
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Patent Citations (7)
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| JP2007277775A (en) * | 2006-04-11 | 2007-10-25 | Matsushita Electric Ind Co Ltd | Electrostatic spraying device and electrostatic spraying method |
| US20100092687A1 (en) * | 2007-02-21 | 2010-04-15 | Hiroto Sumida | Nano-fiber manufacturing apparatus |
| 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 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103696024A (en) * | 2013-12-05 | 2014-04-02 | 厦门大学 | Patterned nano-fiber preparation device |
| CN103696024B (en) * | 2013-12-05 | 2015-10-07 | 厦门大学 | A kind of patterned nano-fiber preparation facilities |
| CN105887214A (en) * | 2014-08-25 | 2016-08-24 | 刘钢 | Static spinning film making device |
| 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 |
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