CN203976994U - A kind of electrostatic spinning apparatus of preparing bundles of nanofibers - Google Patents
A kind of electrostatic spinning apparatus of preparing bundles of nanofibers Download PDFInfo
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- CN203976994U CN203976994U CN201420216580.3U CN201420216580U CN203976994U CN 203976994 U CN203976994 U CN 203976994U CN 201420216580 U CN201420216580 U CN 201420216580U CN 203976994 U CN203976994 U CN 203976994U
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- spinning
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- nanofibers
- auxiliary electrode
- electrostatic spinning
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Abstract
The utility model discloses a kind of electrostatic spinning apparatus of preparing bundles of nanofibers, in device, in many shower nozzles spinning plate, configured auxiliary electrode, existence due to auxiliary electrode, the electric field having reduced between each shower nozzle disturbs, many spray Electric Field Distribution are become evenly, thereby make the degree of orientation of institute's spinning nano fibre bundle improve approximately 25%, mechanical property also improves thereupon, and the line density of institute's spinning nano fibre bundle increases with the increase of spinning head number, ultimate strength also strengthens thereupon.The bundles of nanofibers of this device preparation can be directly used in textile process.The structure that it is good and mechanical property, at ultralight slim textiles, intelligent textile, sensor and biomedical materials field have a good application prospect.
Description
Technical field
The utility model relates to a kind of electrostatic spinning apparatus of preparing bundles of nanofibers, and more particularly, it relates to a kind of electrostatic spinning apparatus with auxiliary electrode of preparing bundles of nanofibers.
Background technology
Electrostatic spinning is a kind of method of the most effectively producing nanofiber, and its device is simple, with low cost, so electrostatic spinning is widely used in producing nanofiber.Compare with traditional fibre, nanofiber has high specific area, pliable and tough surface property, so it is in biomedical engineering, and electronic engineering, the fields such as weaving and filtration have application prospect very widely.Yet electrostatic spinning product is mostly nano fibrous membrane at present, its product form is single, makes being of limited application of nanofiber.The random orientation structure of nano fibrous membrane and poor mechanical property have greatly limited its textile applications.
In recent years, there is the processing method that many kinds are different in the field that method of electrostatic spinning is prepared nano-fibre yams/fibre bundle, as jet resultant yarn method (CN102703998A), bipolar electrode orientation resultant yarn method (CN103088478A), eddy current resultant yarn method (CN103103642A), wet method (CN101845680B) and collector rotary process (CN102277668A) etc.Wet method-electrostatic spinning is a kind of method of effectively producing continuous nano-fibre bundle.Smit (Eugene Smit, 2005,46,2419), Khil (Myung ?Seob Khil, Journal of Biomedical Materials Research Part B:Applied Biomaterials, 2005,72,117) and Pan Zhijuan (CN100576672C) etc. utilize single spraying wet method-electrospinning process successfully to spin continuous nano-fibre yarn.Yet single nozzle electrospinning is only used a spinning head jet spinning, and efficiency is lower, cannot produce in enormous quantities.Also there is at present the device that adopts multi-nozzle electrospinning to prepare bundles of nanofibers, some of them device is due to electric field repulsive interaction between uncontrollable good each shower nozzle, spinning solution jet direction is unstable, causes the intrafascicular fiber alignment degree of nanofiber of preparation low, poor mechanical property.Some improved devices can improve the bundles of nanofibers degree of orientation of preparation, but its apparatus structure is complicated, and spinning head quantity and other structural change are dumb, and fiber bundle structure is single, have also limited the popularization of device.
Summary of the invention
The utility model object is to solve preparation bundles of nanofibers the deficiencies in the prior art, provides a kind of simple in structure, the equally distributed electrostatic spinning apparatus of electric field between many spinning heads, thus it is high to produce degree of orientation, the bundles of nanofibers that mechanical property is good.
The technical solution of the utility model is: the electrostatic spinning apparatus of preparation bundles of nanofibers comprises spinning solution transport, distributor 4, spinning plate 5, high voltage source 6, liquid bath 7, bundles of nanofibers gathering-device, the two poles of the earth of described high voltage source 6 are connected with liquid bath 7 bottoms with spinning plate 5 respectively; Described device also comprises by insulating materials and is fixed on the auxiliary electrode [16] in spinning plate [5], and the range difference of auxiliary electrode [16] lower limb and spinning head [15] needle point is 2.5-15mm.
Further, described auxiliary electrode 16 preferred versions are sheet round copper sheets, and its electrical conductivity is 1 * 10
7-5.8 * 10
7s/m, copper sheet thickness is 0.05-0.2mm, and copper sheet height is 5-30mm, and auxiliary electrode is of a size of 0-600mm * 0-600mm, and radius of corner is 5-30mm.
Further, described distributor 4 preferred versions are multistage distributor.
Further, described spinning solution transport comprises flow pump 1, is placed in glass syringe 2 on flow pump 1 and connects the polyfluortetraethylene pipe 3 of glass syringe 2 outputs and distributor 4 inputs.
Further, described bundles of nanofibers gathering-device comprises the godet roller 8 being disposed in order in liquid bath 7 one sides, heater 9, tensioner 10 and Wound-up roller 11.
Further, the voltage preferred version of described high voltage source 6 is 20-30kV.
Further, its preferred version of flow of each spinning head in described spinning plate 5 is 0.06-1mL/h, and in spinning head tip and liquid bath 7, the vertical range of solution surface is 40-80mm.
Further, described heater 9 its preferred version length are 100-300mm, and temperature is 300-400 ℃.
Further, its preferred version of the linear velocity of described Wound-up roller 11 is 440-1470m/h.
Further, when described auxiliary electrode 16 median plane axle center and spinning head 15 needle point distribution plane axis coinciding, the degree of orientation of the bundles of nanofibers of preparation is maximum.
The utility model has the advantages that compared with prior art, apparatus structure is simple, spinning head quantity is convenient to adjust, and between the many spinning heads of electrostatic spinning apparatus, electric field is equally distributed, thereby it is high to produce degree of orientation, the bundles of nanofibers that mechanical property is good.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further described:
Fig. 1 is bundles of nanofibers electrostatic spinning apparatus schematic diagram;
Fig. 2 be distributor analyse figure (analysing into liquid bath, one-level porous plate, secondary perforated plate construction);
Fig. 3 is auxiliary electrode allocation plan;
Fig. 4 is the 5 spinning head arrangement modes with auxiliary electrode;
Fig. 5 is the 15 spinning head arrangement modes with auxiliary electrode;
Wherein: flow pump 1 glass syringe 2 polyfluortetraethylene pipe 3 distributor 4 spinning plate 5 high voltage source 6 liquid bath 7 godet roller 8 heater 9 tensioner 10 Wound-up roller 11 reservoir 12 one-level porous plate 13 secondary porous plate 14 spinning head 15 auxiliary electrodes 16
The specific embodiment
The applicable spinning solution kind of the utility model device is more, mainly contains polyamide 6/formic acid solution, polysulfones/DMF solution, PLA/dichloromethane solution etc.Below choose polyamide 6/formic acid solution as spinning solution, in conjunction with the accompanying drawings and embodiments the specific embodiment is described.
Comparative example 1-3
Nanofiber preparation facilities and method that comparative example adopts, except not being with auxiliary electrode, 5 spinning head arrangement modes are with embodiment 1,15 spinning head arrangement mode with embodiment 2, and the preparation method of other parameter and bundles of nanofibers is all with embodiment 1.The preparation of comparative example spinning solution and body lotion is with embodiment 1.
Structure and the mechanical property of the bundles of nanofibers of preparation are as shown in table 1.
Under the different spinning head quantity of table 1 not with structure and the mechanical property of auxiliary electrode electrostatic spinning nano fiber bundle
Embodiment 1:
As shown in Fig. 1～Fig. 5, a kind of bundles of nanofibers electrostatic spinning apparatus of preparing that the present embodiment provides, comprise flow pump 1, be placed in the glass syringe 2 on flow pump 1, and the polyfluortetraethylene pipe 3 formation spinning solution transports that connect glass syringe 2 outputs and distributor 4 inputs.Distributor 4 is multistage distributor, consists of successively reservoir 12, one-level porous plate 13 and secondary porous plate 14.As shown in Figure 2.The output of distributor 4 connects spinning plate 5.Spinning head 15 is distributed in spinning plate 5, and auxiliary electrode 16 is fixed in spinning plate 5 by insulating materials, as shown in Figure 3 the configuration of auxiliary electrode 16 and spinning head 15 positions.Auxiliary electrode 16 median plane axle center and spinning head needle point distribution plane axis coinciding.Spinning plate 5 is connected with the positive pole of high voltage source 6, and the negative pole of high voltage source 6 is connected with liquid bath 7 bottoms under spinning head 15.In spinning head 15 tips and liquid bath 7, the vertical range of bath surface is 60mm.One side of liquid bath 7 is bundles of nanofibers gathering-devices, by the godet roller 8 being disposed in order, and heater 9, tensioner 10 and Wound-up roller 11 form.
In the present embodiment, in spinning plate 5, configure 5 spinning heads, as shown in Figure 4.The voltage of high voltage source 6 is 26kV; Each spinning head flow is 0.1mL/h; The length of heater 9 is 200mm, and temperature is 350 ℃; The linear velocity of Wound-up roller 11 is 588m/h; Auxiliary electrode 16 parameters: electrical conductivity is 5.8 * 10
7s/m, copper sheet thickness is 0.1mm, and copper sheet height is 15mm, and auxiliary electrode is of a size of 40mm * 40mm, and radius of corner is 10mm;
Utilizing a kind of described in the present embodiment to prepare nanofiber bundle device, to prepare bundles of nanofibers step as follows: (1) prepares spinning solution: in the formic acid that is 88% at mass fraction by polyamide 6 (PA6) grain dissolution, under room temperature, through magnetic agitation to polyamide 6 particle, dissolve completely, be mixed with mass fraction and be 25% polyamide 6 spinning solution; (2) prepare body lotion: TX-10 is dissolved in deionized water, at room temperature through magnetic agitation to surfactant, dissolves completely, be configured to mass fraction and be 0.5% TX-10 nonionic surfactant solution; (3) spinning solution enters the reservoir 12 of distributor 4 under the pressure-acting of flow pump 1 by transport, successively by one-level porous plate 13, secondary porous plate 14, forms two-stage uniform distribution.Spinning solution after distributor 4 uniform distributions enters each spinning head in spinning plate 5, and under the high voltage electric field effect forming in high voltage source 6, spinning solution is sprayed by each spinning head, forms nanofiber, the bath surface deposition in liquid bath 7.By the coiling tractive force effect of Wound-up roller 11, the nanofiber that is deposited on bath surface forms wet fiber bundle, wet fiber bundle enters heater 9 dryings, after drying, fibre bundle enters tensioner 10 and stretches, fibre bundle is further orientated, is then wound on Wound-up roller 11, under the drawing-off effect of the final continuous rotation at Wound-up roller 11, form continuous bundles of nanofibers.
Structure and the mechanical property of the bundles of nanofibers of preparation are as shown in table 2.The degree of orientation of its spinning nano fibre bundle has improved 16% than the degree of orientation with 5 spinning head institute spinning nano fibre bundles of auxiliary electrode not.The diameter of 5 spinning head institute spinning nano fibre bundles is place an order 5 times of spinning head institute spinning nano fibre beam diameter of identical winding speed.
Structure and the mechanical property of table 25 spinning head Static Spinning polyamide 6 bundles of nanofibers
Embodiment 2
The preparation of the present embodiment spinning solution and body lotion is with embodiment 1.
Wherein spinning plate 5 changes 15 spinning heads into, is illustrated in figure 3 15 spinning head arrangement modes; High voltage source 6 voltages are 26kV, and each spinning head flow is 0.1mL/h; Auxiliary electrode is of a size of 60mm * 40mm, and other parameter and nanofiber preparation method are with embodiment 1.
Structure and the mechanical property of bundles of nanofibers prepared by the present embodiment are as shown in table 3.The degree of orientation of institute's spinning nano fibre bundle has improved approximately 22% than the degree of orientation with 15 spinning head institute spinning nano fibre bundles of auxiliary electrode not.The diameter of 15 spinning head institute spinning nano fibre bundles is approximately place an order 12 times of spinning head institute spinning nano fibre beam diameter of identical winding speed.
Structure and the mechanical property of table 315 spinning head Static Spinning polyamide 6 bundles of nanofibers
Embodiment 3-5
The preparation of the present embodiment spinning solution and body lotion is with embodiment 2.
Wherein, by the height of 15 spinning head auxiliary electrode 16 copper sheets, change respectively 15mm, 17.5mm, 22.5mm into, the other technologies parameter of device and nanofiber preparation method are with embodiment 2.Three kinds of prepared bundles of nanofibers degree of orientations are as shown in table 4.
Table 4 spins the degree of orientation of polyamide 6 bundles of nanofibers with the high auxiliary electrode of different sheets
| Sheet is high/mm | 15 | 17.5 | 20 | 22.5 | Without auxiliary electrode |
| Degree of orientation/% | 82.87 | 83.38 | 85.07 | 75.67 | 60.2 |
By above-mentioned table 4, can be drawn, the improvement effect of auxiliary electrode shower nozzle electric field more than 16 pairs that different sheets are high is different, thereby cause the degree of orientation of institute's spinning nano fibre bundle different, but use the degree of orientation of the rear institute of auxiliary electrode 16 spinning nano fibre bundle all large than not using the degree of orientation of 16 spinning nano fibre bundles of auxiliary electrode.When copper sheet sheet height is 20mm, the degree of orientation of institute's spinning nano fibre bundle is maximum.
From above-described embodiment, can find out, the utility model apparatus structure is simple, and by configure auxiliary electrode 16 in spinning plate 5, the electric field having improved between spinning head disturbs, thereby it is high to produce degree of orientation, the good bundles of nanofibers of mechanical property.Spinning head quantity can change flexibly simultaneously, to produce the bundles of nanofibers of different size, adapts to different application field.
Certainly above-described embodiment is only explanation technical conceive of the present utility model and feature, and its object is to allow person skilled in the art can understand content of the present utility model and implement according to this, can not limit protection domain of the present utility model with this.All modifications of doing according to the Spirit Essence of the utility model main technical schemes, within all should being encompassed in protection domain of the present utility model.
Claims (9)
1. an electrostatic spinning apparatus of preparing bundles of nanofibers, comprises spinning solution transport, distributor [4], spinning plate [5], high voltage source [6], liquid bath [7], bundles of nanofibers gathering-device, the two poles of the earth of described high voltage source [6] are connected with liquid bath [7] bottom with spinning plate [5] respectively; It is characterized in that, also comprise by insulating materials and be fixed on the auxiliary electrode [16] in spinning plate [5], the range difference of auxiliary electrode [16] lower limb and spinning head [15] needle point is 2.5-15mm.
2. a kind of electrostatic spinning apparatus of preparing bundles of nanofibers according to claim 1, is characterized in that, described auxiliary electrode [16] is sheet round copper sheet.
3. a kind of electrostatic spinning apparatus of preparing bundles of nanofibers according to claim 1 and 2, is characterized in that, auxiliary electrode electrical conductivity is 1 * 10
7-5.8 * 10
7s/m, thickness is 0.05-0.2mm, is highly 5-30mm, and auxiliary electrode is of a size of 0-600mm * 0-600mm, and radius of corner is 5-30mm.
4. a kind of electrostatic spinning apparatus of preparing bundles of nanofibers according to claim 1, is characterized in that, described distributor [4] is multistage distributor.
5. a kind of electrostatic spinning apparatus of preparing bundles of nanofibers according to claim 1, it is characterized in that, described spinning solution transport comprises flow pump [1], be placed in the glass syringe [2] on flow pump [1] and connect the polyfluortetraethylene pipe [3] of glass syringe [2] output and distributor [4] input.
6. a kind of electrostatic spinning apparatus of preparing bundles of nanofibers according to claim 1, it is characterized in that, described bundles of nanofibers gathering-device comprises the godet roller [8] being disposed in order in liquid bath [7] one sides, heater [9], tensioner [10] and Wound-up roller [11].
7. a kind of electrostatic spinning apparatus of preparing bundles of nanofibers according to claim 1, is characterized in that, the voltage of described high voltage source [6] is 20-30kV; The flow of each spinning head in described spinning plate [5] is 0.06-1mL/h, and spinning head vertical range most advanced and sophisticated and the middle solution surface of liquid bath [7] is 40-80mm.
8. a kind of electrostatic spinning apparatus of preparing bundles of nanofibers according to claim 6, is characterized in that, the length of described heater [9] is 100-300mm, and temperature is 300-400 ℃; The linear velocity of described Wound-up roller [11] is 440-1470m/h.
9. a kind of electrostatic spinning apparatus of preparing bundles of nanofibers according to claim 1, is characterized in that, when auxiliary electrode [16] median plane axle center and spinning head [15] needle point distribution plane axis coinciding, the degree of orientation of the bundles of nanofibers of preparation is maximum.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420216580.3U CN203976994U (en) | 2014-04-30 | 2014-04-30 | A kind of electrostatic spinning apparatus of preparing bundles of nanofibers |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420216580.3U CN203976994U (en) | 2014-04-30 | 2014-04-30 | A kind of electrostatic spinning apparatus of preparing bundles of nanofibers |
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| CN203976994U true CN203976994U (en) | 2014-12-03 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103993376A (en) * | 2014-04-30 | 2014-08-20 | 苏州大学 | Electrostatic spinning device for manufacturing nanometer fiber bundles |
| CN106757418A (en) * | 2016-11-08 | 2017-05-31 | 南通新澳新材料科技有限公司 | A kind of electrostatic spinning nano fiber generating means |
| CN108277541A (en) * | 2018-01-29 | 2018-07-13 | 南通纺织丝绸产业技术研究院 | A kind of preparation facilities and preparation method of high intensity nano fibre beam |
| CN109385670A (en) * | 2018-10-12 | 2019-02-26 | 青岛科技大学 | A kind of needleless electrostatic spinning nozzle taylor cone is evenly distributed with enhancing device and method |
| CN110241467A (en) * | 2019-05-23 | 2019-09-17 | 东华大学 | Inner cone angie type electrostatic spinning apparatus and its application method |
-
2014
- 2014-04-30 CN CN201420216580.3U patent/CN203976994U/en not_active Withdrawn - After Issue
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103993376A (en) * | 2014-04-30 | 2014-08-20 | 苏州大学 | Electrostatic spinning device for manufacturing nanometer fiber bundles |
| CN103993376B (en) * | 2014-04-30 | 2017-06-06 | 苏州大学 | A kind of electrostatic spinning apparatus for preparing bundles of nanofibers |
| CN106757418A (en) * | 2016-11-08 | 2017-05-31 | 南通新澳新材料科技有限公司 | A kind of electrostatic spinning nano fiber generating means |
| CN106757418B (en) * | 2016-11-08 | 2019-10-01 | 上海云同纳米材料科技有限公司 | A kind of electrostatic spinning nano fiber generating device |
| CN108277541A (en) * | 2018-01-29 | 2018-07-13 | 南通纺织丝绸产业技术研究院 | A kind of preparation facilities and preparation method of high intensity nano fibre beam |
| CN109385670A (en) * | 2018-10-12 | 2019-02-26 | 青岛科技大学 | A kind of needleless electrostatic spinning nozzle taylor cone is evenly distributed with enhancing device and method |
| CN109385670B (en) * | 2018-10-12 | 2021-04-23 | 青岛科技大学 | Device and method for increasing efficiency of needle-free electrostatic spinning nozzle by uniformly distributing Taylor cones |
| CN110241467A (en) * | 2019-05-23 | 2019-09-17 | 东华大学 | Inner cone angie type electrostatic spinning apparatus and its application method |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141203 Effective date of abandoning: 20170606 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20141203 Effective date of abandoning: 20170606 |