CN204918859U - Porous material does not have syringe needle electrostatic spinning device - Google Patents
Porous material does not have syringe needle electrostatic spinning device Download PDFInfo
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- CN204918859U CN204918859U CN201520528531.8U CN201520528531U CN204918859U CN 204918859 U CN204918859 U CN 204918859U CN 201520528531 U CN201520528531 U CN 201520528531U CN 204918859 U CN204918859 U CN 204918859U
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Abstract
The utility model relates to a porous material does not have syringe needle electrostatic spinning device, its characterized in that: spinning buffer case in the spinning system is cylindrical, and both ends are the toper about it, and spinning buffer case's lower extreme is opened has a liquid hole, and the diameter in hole is between 3-20mm, and porous medium overlaps the lower extreme at spinning buffer case, and spinning buffer case passes through copper core fixture and is connected with power device, and the outside extraction electrode of copper core of copper core fixture links to each other with power supply system, spinning buffer case top trompil passing through feed pipe way is connected with supplying liquid device play liquid end, supplies the feed liquor end of liquid device to be connected with the liquid reserve tank, the dash receiver is aimed at to the play liquid hole below of spinning buffer case lower extreme. It adopts special spinning subassembly, can can also guarantee the homogeneity of spinning in the volume of increasing substantially the spinning. This method has simple process, and the industrialization of being convenient for implements and characteristics such as application scope guangZhous.
Description
Technical field
The utility model relates to a kind of porous material needle-less electrostatic spinning apparatus, belongs to electrostatic spinning technique.
Background technology
Electrostatic spinning technique is that one utilizes high-pressure electrostatic effect, makes polymer solution or melt drop band point, and produces jet, solvent evaporation or melt solidifying in flight course, thus forms a kind of mode of nanofiber.It is divided into needle-based and needleless hair style two kinds of spinning modes.In order to improve spinning efficiency, present common needle-based all adopts the method for Multi needle to carry out spinning, " high-performance multineedle electrostatic spinning jet device " of such as application number 200610157106.8, spinning solution is pressed in multiple syringe needle by hydraulic means by this patent by spinning solution simultaneously, under the effect of voltage, be spun into silk.Needle-based electrostatic spinning has that fineness is comparatively thin, the uniform advantage of product, but the spinning mode efficiency of Multi needle is still not high, the increase of syringe needle number can cause " edge effect ", exactly owing to mutually superposing with the electrostatic field between row's Multi needle, cause the jet of the syringe needle of both sides to both sides knockdown.And likely make spinning stop when charging inequality, thus cause the blocking of syringe needle.Be compared to needle-based electrostatic spinning, the spinning output of needle-less electrostatic spinning is high, and there is not the problem of syringe needle blocking, a kind of needle-less electrostatic spinning apparatus of ultrahigh in efficiency is mentioned in one section of paper " NeedlelessElectrospinningofUniformNanofibersUsingSpiralC oilSpinnerets " of the Wang Xin professor of Wuhan Textile University, use spiral winding as spinning original paper, spinning solution is immersed by half of below copper spiral winding axis, online corral is when axis rolls, spinning solution is taken away liquid bath, silk is spun under voltage effect between coil and dash receiver.But the phenomenon that can be adhered between the spinning that this needle-less spinning process is made, and spinning diameter is wayward.
Summary of the invention
The purpose of this utility model is to provide a kind of porous material needle-less electrostatic spinning apparatus, and it adopts special filament spinning component, can also ensure the uniformity of spinning while increasing substantially spinning amount.It is simple that the method has technique, is convenient to industrializing implementation and the feature such as applied widely.
The technical solution of the utility model is achieved in that a kind of porous material needle-less electrostatic spinning apparatus, it is characterized in that: device for spinning comprises electric power system, receiving system, liquid feed device, spinning system, device for storing liquid, dynamical system, spinning dsah-pot wherein in spinning system is cylindrical, its upper and lower two ends are taper, the lower end of spinning dsah-pot has fluid hole, the diameter in hole is between 3 ~ 20mm, porous media is enclosed within the lower end of spinning dsah-pot, spinning dsah-pot is connected with power set by copper core jig, the outside extraction electrode of copper core of copper core jig is connected with electric power system, the top perforate of spinning dsah-pot is connected with liquid feed device outlet end by liquid feeding pipeline, and the liquid feeding end of liquid feed device is connected with liquid reserve tank, the fluid hole aligned beneath dash receiver of spinning dsah-pot lower end.
Described porous media comprises powder metallurgy porous material, ceramic porous material, foam metal and multicellular metal foil, and there is through hole porous media inside, and the porosity of through hole is between 40% ~ 75%, and aperture is between 75 μm ~ 200 μm.
When described porous media adopts multicellular metal foil, porous media is enclosed within the lower end of spinning dsah-pot, in order to fix in the hole of inserting copper core jig afterwards, porous media tightly contacts with the copper surface of the inside in copper core jig hole, copper core jig is connected with power set, and the outside extraction electrode of copper core of copper core jig is connected with electric power system; The top perforate of spinning dsah-pot is connected with liquid feed device outlet end by liquid feeding pipeline, and the liquid feeding end of liquid feed device is connected with device for storing liquid; The fluid hole aligned beneath receiving system of spinning dsah-pot lower end.
The metallurgical porous material of described porous media choice of powder, when ceramic porous material or this block porous material of foam metal, first tapered electrode is inserted by bottom spinning dsah-pot, tapered electrode is the copper conductive ring of a likeness in form funnel, shape is divided identical with spinning dsah-pot bottom cone, electrode is stretched out on its top, electrode passes spinning dsah-pot by spinning dsah-pot barrel, be used for accessing external power, pass part to seal with spinning dsah-pot contact portion, porous media cuts into the taper identical with spinning dsah-pot bottom shape, be arranged in the fluid hole place of spinning dsah-pot lower end, contact with tapered electrode.Again spinning dsah-pot is fixed in the hole of copper core jig afterwards.
The structure of described copper core jig is divided into two kinds, fixed jig and adjustable clamp, and fixed jig is hole copper coin being arranged with tapering, and hole count depends on the number of spinneret; Pitch of holes depends on the spinneret spacing of design; Adjustable clamp is made up of the wavy copper sheet of two panels, the crest of two wavy copper sheets is relative with crest, and trough is relative with trough, and the crest location of two wavy copper sheets is connected with nut by screw rod, spinning dsah-pot is inserted wherein by the space at trough place, and spinning dsah-pot clamps by adjusting nut.
Good effect of the present utility model greatly improves spinning efficiency, and its finished silk is even, string diameter can be controlled, and there will not be between silk and silk and is adhered problem, there will not be the problem that syringe needle blocks, spinning end is comparatively concentrated, reduces the surface charge density of single electrospinning unit, thus improves utilization rate of electrical, reduce production cost and expense, device manufacture is simple, easy to operate, is easy to realize industrial production.
Accompanying drawing explanation
Fig. 1 is structure chart of the present utility model.
Fig. 2 is spinning dsah-pot structure chart when adopting foil-like porous media in the utility model.
Fig. 3 is spinning dsah-pot structure chart when adopting block porous media in the utility model.
Fig. 4 is tapered electrode structure chart of the present utility model.
Fig. 5 is fixed copper core fixture structure figure.
Fig. 6 is regulatable copper core fixture structure figure.
Fig. 7 is the porous copper foil optical photograph that the utility model uses.
Fig. 8 is spinning finished product electron scanning micrograph of the present utility model.
Fig. 9 is spinning finished product electron scanning micrograph of the present utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described further: as shown in figures 1 to 6, a kind of porous material needle-less electrostatic spinning apparatus, it is characterized in that: device for spinning comprises electric power system 4, receiving system 5, liquid feed device 6, spinning system, device for storing liquid 7, dynamical system 8, spinning dsah-pot 1 wherein in spinning system is cylindrical, its upper and lower two ends are taper, the lower end of spinning dsah-pot 1 has fluid hole 9, the diameter in hole is between 3 ~ 20mm, porous media 2 is enclosed within the lower end of spinning dsah-pot 1, spinning dsah-pot 1 is connected with power set 8 by copper core jig 3, the outside extraction electrode of copper core of copper core jig 3 is connected with electric power system 4, spinning dsah-pot 1 top perforate is connected with liquid feed device 6 outlet end by liquid feeding pipeline, and the liquid feeding end of liquid feed device 6 is connected with liquid reserve tank 7, the fluid hole 9 aligned beneath dash receiver 5 of spinning dsah-pot 1 lower end.
Described porous media 2 comprises powder metallurgy porous material, ceramic porous material, foam metal and multicellular metal foil, and there is through hole porous media 2 inside, and the porosity of through hole is between 40% ~ 75%, and aperture is between 75 μm ~ 200 μm.
When described porous media 2 adopts multicellular metal foil, porous media 2 is enclosed within the lower end of spinning dsah-pot 1, in order to fix in the hole of inserting copper core jig 3 afterwards, porous media 2 tightly contacts with the copper surface of the inside in copper core jig 3 hole, copper core jig 3 is connected with power set 8, and the outside extraction electrode of copper core of copper core jig 3 is connected with electric power system 4; Spinning dsah-pot 1 top perforate is connected with liquid feed device 6 outlet end by liquid feeding pipeline, and the liquid feeding end of liquid feed device 6 is connected with device for storing liquid 7; The fluid hole 9 aligned beneath receiving system 5 of spinning dsah-pot 1 lower end.
The metallurgical porous material of described porous media 2 choice of powder, when ceramic porous material or this block porous material of foam metal, first tapered electrode 1-1 is inserted by bottom spinning dsah-pot 1, tapered electrode 1-1 is the copper conductive ring of a likeness in form funnel, shape is divided identical with spinning dsah-pot 1 bottom cone, electrode is stretched out on its top, electrode passes spinning dsah-pot 1 by spinning dsah-pot 1 barrel, be used for accessing external power, pass part to seal with spinning dsah-pot contact portion, porous media 2 cuts into the taper identical with spinning dsah-pot 1 bottom shape, be arranged in fluid hole 9 place of spinning dsah-pot 1 lower end, contact with tapered electrode 1-1.Again spinning dsah-pot 1 is fixed on afterwards in the hole of copper core jig 3.
The structure of described copper core jig 3 is divided into two kinds, fixed jig and adjustable clamp, and fixed jig is hole 3-2 copper coin 3-1 being arranged with tapering, and hole count depends on the number of spinneret; Pitch of holes depends on the spinneret spacing of design; Adjustable clamp is made up of the wavy copper sheet 3-3 of two panels, the crest of two wavy copper sheet 3-3 is relative with crest, trough is relative with trough, the crest location of two wavy copper sheets is connected with nut 3-5 by screw rod 3-4, spinning dsah-pot 1 is inserted wherein by the space at trough place, and spinning dsah-pot 1 clamps by adjusting nut.
During specific works, by fine for polypropylene (PAN) and DMF (NMP) and ethanol mix and blend, be configured to the PAN solution of 8wt%, add acetylacetone,2,4-pentanedione afterwards, continue to stir after adding a certain amount of nano silica fume after stirring until form turbid liquid, as shown in Figure 7, use 75 μm, aperture, the porous copper foil of porosity 45% is as porous media 2, it is matched with the spinning dsah-pot 1 of 20ml, spinning dsah-pot 1 bottom end opening 8mm, as shown in Figure 2, porous media 2 is wrapped in fluid hole 9 place of spinning dsah-pot 1 bottom, spinning dsah-pot 1 is contained on fixed copper core jig 3, porous media 2 on parcel spinning dsah-pot 1 contacts with the inner surface in fixed copper core jig 3 hole closely, play the effect of conduction voltage, spinneret spacing 15cm is set.As shown in Figure 1, solution is injected liquid reserve tank 7, spinning system is injected with the speed of 30ml/min, control the fluid hole 9 of spinning dsah-pot 1 lower end and the spacing of dash receiver 5, PAN silk is spun under certain voltage, heated 8 hours under 600 DEG C of high temperature by material, obtain Si-C composite material after cooling, spinning finished product as shown in Figure 8.
When porous media 2 selects P/m Porous nickel, the acetone solvent of configuration 50wt%PVDF, the water adding 2wt% is mixed into spinning slurry.Select bottom liquid outlet size to be 20mm dsah-pot, dsah-pot volume is 200ml; Select P/m Porous nickel as porous media 2, its porosity is 60%, and aperture is 100 μm, thickness 6mm.As shown in Figure 3, first inserted bottom spinning dsah-pot 1 by copper tapered electrode 1-1 during assembling, top is passed by spinning dsah-pot 1 barrel.As shown in Figure 4, tapered electrode 1-1 shape is identical with spinning dsah-pot 1 lower shape, plays the effect be connected with outside jig by the spinning solution in spinning dsah-pot 1.Afterwards porous media 2 is cut into the shape identical with bottom spinning dsah-pot 1, and inserted fluid hole 9 place bottom spinning dsah-pot 1, with tapered electrode close contact.Use adjustable copper core jig 3, single 4 identical spinning dsah-pots 1 are loaded in copper core jig 3, with tapered electrode 1-1 extension close contact inside copper core jig 3.Jig is fit into power set, electric power system and liquid-supplying system in connection, spinning slurry is injected with the speed of 50ml/min, regulate the spacing of spinning dsah-pot 1 bottom and dash receiver 5 well to receive spinning, dsah-pot moves perpendicular to dsah-pot arragement direction, weave under certain voltage film forming, just obtain PVDF spinning barrier film through drying course afterwards, spinning finished product as shown in Figure 9.
Claims (5)
1. a porous material needle-less electrostatic spinning apparatus, it is characterized in that: device for spinning comprises electric power system, receiving system, liquid feed device, spinning system, device for storing liquid, dynamical system, spinning dsah-pot wherein in spinning system is cylindrical, its upper and lower two ends are taper, the lower end of spinning dsah-pot has fluid hole, the diameter in hole is between 3 ~ 20mm, porous media is enclosed within the lower end of spinning dsah-pot, spinning dsah-pot is connected with power set by copper core jig, and the outside extraction electrode of copper core of copper core jig is connected with electric power system; The top perforate of spinning dsah-pot is connected with liquid feed device outlet end by liquid feeding pipeline, and the liquid feeding end of liquid feed device is connected with liquid reserve tank; The fluid hole aligned beneath dash receiver of spinning dsah-pot lower end.
2. according to a kind of porous material needle-less electrostatic spinning apparatus described in claim 1, it is characterized in that described porous media comprises powder metallurgy porous material, ceramic porous material, foam metal and multicellular metal foil, there is through hole porous media inside, and the porosity of through hole is between 40% ~ 75%, aperture is between 75 μm ~ 200 μm.
3. according to a kind of porous material needle-less electrostatic spinning apparatus described in claim 1, when it is characterized in that described porous media employing multicellular metal foil, porous media is enclosed within the lower end of spinning dsah-pot, in order to fix in the hole of inserting copper core jig afterwards, porous media tightly contacts with the copper surface of the inside in copper core jig hole, copper core jig is connected with power set, and the outside extraction electrode of copper core of copper core jig is connected with electric power system; The top perforate of spinning dsah-pot is connected with liquid feed device outlet end by liquid feeding pipeline, and the liquid feeding end of liquid feed device is connected with device for storing liquid; The fluid hole aligned beneath receiving system of spinning dsah-pot lower end.
4. according to a kind of porous material needle-less electrostatic spinning apparatus described in claim 1, it is characterized in that the metallurgical porous material of described porous media choice of powder, when ceramic porous material or this block porous material of foam metal, first tapered electrode is inserted by bottom spinning dsah-pot, tapered electrode is the copper conductive ring of a likeness in form funnel, shape is divided identical with spinning dsah-pot bottom cone, electrode is stretched out on its top, electrode passes spinning dsah-pot by spinning dsah-pot barrel, be used for accessing external power, pass part to seal with spinning dsah-pot contact portion, porous media cuts into the taper identical with spinning dsah-pot bottom shape, be arranged in the fluid hole place of spinning dsah-pot lower end, contact with tapered electrode, again spinning dsah-pot is fixed in the hole of copper core jig afterwards.
5. according to a kind of porous material needle-less electrostatic spinning apparatus described in claim 1, it is characterized in that the structure of described copper core jig is divided into two kinds, fixed jig and adjustable clamp, fixed jig is hole copper coin being arranged with tapering, and hole count depends on the number of spinneret; Pitch of holes depends on the spinneret spacing of design; Adjustable clamp is made up of the wavy copper sheet of two panels, the crest of two wavy copper sheets is relative with crest, and trough is relative with trough, and the crest location of two wavy copper sheets is connected with nut by screw rod, spinning dsah-pot is inserted wherein by the space at trough place, and spinning dsah-pot clamps by adjusting nut.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520528531.8U CN204918859U (en) | 2015-07-21 | 2015-07-21 | Porous material does not have syringe needle electrostatic spinning device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520528531.8U CN204918859U (en) | 2015-07-21 | 2015-07-21 | Porous material does not have syringe needle electrostatic spinning device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104988586A (en) * | 2015-07-21 | 2015-10-21 | 中国第一汽车股份有限公司 | Porous material syringe needle-free static spinning apparatus |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104988586A (en) * | 2015-07-21 | 2015-10-21 | 中国第一汽车股份有限公司 | Porous material syringe needle-free static spinning apparatus |
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