CN102051693B - Split type composite electrostatic spinning device - Google Patents
Split type composite electrostatic spinning device Download PDFInfo
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- CN102051693B CN102051693B CN201110022484A CN201110022484A CN102051693B CN 102051693 B CN102051693 B CN 102051693B CN 201110022484 A CN201110022484 A CN 201110022484A CN 201110022484 A CN201110022484 A CN 201110022484A CN 102051693 B CN102051693 B CN 102051693B
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- syringe needle
- electrostatic spinning
- split type
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- 238000010041 electrostatic spinning Methods 0.000 title claims abstract description 56
- 239000002131 composite material Substances 0.000 title claims abstract description 53
- 238000009987 spinning Methods 0.000 claims abstract description 64
- 239000007921 spray Substances 0.000 claims description 82
- 239000000835 fiber Substances 0.000 abstract description 26
- 238000012423 maintenance Methods 0.000 abstract description 7
- 238000007789 sealing Methods 0.000 abstract description 5
- 239000002114 nanocomposite Substances 0.000 abstract description 3
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Abstract
The invention aims to provide an electrostatic spinning device for preparing micro/nano composite fiber, and in particular relates to a split type composite electrostatic spinning device, specifically a device suitable for all types of composite electrostatic spinning. The split type composite electrostatic spinning device comprises a sealing cover, a core, a shell, an outer spinning nozzle, an inner spinning needle head and a fixed sealing gasket, wherein the shell is cylindrical, the outer spinning nozzle is installed at one end of the shell, the other end of the shell is connected with the sealing cover, the core is installed in the shell, the fixed sealing gasket is lined between the core and one end of the shell where the outer spinning nozzle is installed, at least one inner spinning needle head installing hole is formed on the core, and the inner spinning needle head is installed in the inner spinning needle head installing hole of the core. The invention solves the problem that the prior art can not adapt to complex replacement of multiple varieties and multiple specifications of composite electrostatic spinning and devices, and overcomes the defect of difficulty in maintenance in the prior art.
Description
Technical field
The present invention relates to a kind of electrostatic spinning apparatus for preparing micron/nano composite fiber, particularly relate to a kind of split type composite electrostatic spinning device, specifically a kind of device that adapts to various composite electrostatic spinnings.
Background technology
Common electrostatic spinning is that polymer solution is injected in the capillary, and in polymer, adds high pressure, makes between the receiving screen of itself and ground connection and forms high voltage electric field.When the size of electric field force equaled the surface tension of liquid or melt, charged drop was in balance at capillary end.Along with the increase of electric field force, drop is elongated to thread, because the instability that acts between electric charge, in dropping process, strand is the conical motion state, and is collected on the fiber receiving system with the form of nonwoven fabric.
But common electrospinning process generally is merely able to prepare the fiber with single kind material, has the composite fibre that a kind of material is enclosed with other materials and be difficult to prepare, and also is difficult to prepare the micro/nano-fibre pipe with hollow structure.In the last few years, a kind of new electrospinning process---composite electrostatic spinning can be prepared multicomponent or doughnut because of it and receive widely and paying close attention to.Different materials is wrapped in a kind of material or has the composite fibre of skin-core structure; Because of it has various ingredients, great application prospect is arranged at aspects such as multifunctional fibre, drug, micro-/ nano lead, fire-retardant, antibiotic, antistatic, antiultraviolet, anti-electromagnetic shieldings.And, utilize the aperture in the micro/nano-fibre pipe that composite spinning prepares littler, in function aspects such as filter-sterilized, chemical catalysis, material (hydrogen) storages its irreplaceable effect is arranged; Utilize composite electrostatic spinning technology preparation CNT also to come into one's own day by day.Recent years, relevant patent coaxial or the composite electrostatic spinning device was delivered in succession, and for example ZL200320122276.4 has related to the coaxial electrostatic spinning silk device, has mentioned multi-fluid composite electrostatic spinning device among the 200710062722.X.But in the device that these patents relate to, generally speaking, the number of interior spray silk syringe needle just immobilizes in the covering device; As if distance and the distribution thereof between spray silk syringe needle number in will changing or the interior spray silk syringe needle; Must change whole device, processing is difficulty relatively, and processing cost is higher; Device can't split to cleaning and make troubles, and safeguards relatively difficulty.
Summary of the invention
The purpose of this invention is to provide a kind of electrostatic spinning apparatus for preparing micron/nano composite fiber, particularly relate to a kind of split type composite electrostatic spinning device, specifically a kind of device that adapts to various composite electrostatic spinnings.The invention solves Combined Electrostatic that prior art can't adapt to specification how wide in variety and spin and install and change loaded down with trivial details problem, remedied prior art deficiency difficult in maintenance.Electrostatic spinning apparatus of the present invention is the device of core body-shell split-type design; Can effectively satisfy on the one hand in regulating arbitrarily spray silk syringe needle stretch out outer spinning head apart from the time make in constant between the spray syringe needle apart from maintenance; This device is processed easily on the other hand, and the fractionation of device, cleaning, replacing and maintenance are very easy.
A kind of split type composite electrostatic spinning device of the present invention is made up of seal cover, core body, shell, outer spinning head, interior spray silk syringe needle and fixing seal pad, and shell is tubular; One end of shell is installed an outer spinning head; The other end of shell connects a seal cover, and core body is installed in the shell, and core body and shell are installed between the outer spinning head end and be lined with the fixing seal pad; Spray silk syringe needle installing hole at least one is arranged on the core body, and interior spray silk syringe needle is installed in the interior spray silk syringe needle installing hole of core body.
As optimized technical scheme:
Wherein, aforesaid a kind of split type composite electrostatic spinning device, the central axis of described core body and the central axis of shell are on same straight line; The central axis of described core body and the central axis of outer spinning head are on same straight line; The central axis that also is described core body, shell and outer spinning head is all on same straight line.Core body, shell, seal cover material can be other metals such as plastics, inorganic non-metallic or stainless steel, and interior spray silk syringe needle is stainless steel or other conductive material with outer spinning head.Shell external diameter 12-30mm, height 15-40mm, shell thickness of pipe 4-8mm.The aperture of interior spray silk syringe needle is 0.3-1.6mm, and the spinning head aperture is 1.0-3.0mm.
Aforesaid a kind of split type composite electrostatic spinning device, described shell is cylindrical, and core body is cylindrical.Core outside diameter is less than internal diameter of outer cover, and the height of core body exceeds the degree of depth 0.1-10mm of shell approximately.
Aforesaid a kind of split type composite electrostatic spinning device, described core body and shell have the anti-rotation limiting structure.Prevent when fixing core body that the changing of the relative positions takes place for core body, fixing seal pad, shell three and in changing the distribution of spray silk syringe needle or damage in a spray syringe needle and fixing seal pad.
Aforesaid a kind of split type composite electrostatic spinning device, described anti-rotation limiting structure is that core outer surface has the protrusion piece, and the shell correspondence position has the bayonet socket of depression, and the protrusion piece of assembling back core body is stuck in the bayonet socket of shell.The protrusion piece can be combined closely with bayonet socket and the changing of the relative positions can not be taken place.
Aforesaid a kind of split type composite electrostatic spinning device has at least one interior spray silk syringe needle installing hole to be meant to have on the core body and sprays in 1～4 in the silk syringe needle installing hole on the described core body, it is suitable with interior spray silk syringe needle external diameter to spray silk syringe needle installing hole internal diameter.The single hole core body, coaxial fiber can be prepared in the middle of core body in the hole; Also can depart from centermost; Form the core shift fiber, or even the outer wall of spinning head is tangent with the inwall of outer spinning head in making, spray silk liquid is not coated on the fiber of similar parallel construction in the outer spray silk liquid fully in forming.The position of hole in core body can change according to actual needs.
Aforesaid a kind of split type composite electrostatic spinning device, described in spray silk syringe needle installing hole quantity during greater than two, it is distributed as regular polygon and arranges.Certainly, the distribution of interior spray silk syringe needle is not necessarily the equilateral triangle or the square of rule, according to the needs of the fiber that will prepare, various irregular layouts all are possible.
Aforesaid a kind of split type composite electrostatic spinning device; When spray silk syringe needle installing hole quantity is greater than one in described; After being installed in core body; Spray silk syringe needle outer wall can form undercut construction with outer spinning head inwall in some or all of, and spray silk liquid is not coated on the fiber of similar parallel construction in the outer spray silk liquid fully in the preparation.
Aforesaid a kind of split type composite electrostatic spinning device; When spray silk syringe needle installing hole quantity is greater than one in described; Part or all of interior spray silk syringe needle can keep a segment distance with outer spinning head inwall, prepares the covered fiber that a kind of fibre bag is covered with one or more components.
Aforesaid a kind of split type composite electrostatic spinning device, described fixing seal pad are circular, have on the sealing gasket with core body in the hole of the corresponding distribution of spray silk syringe needle installing hole, hole size is suitable with an interior spray syringe needle external diameter.The external diameter of fixing seal pad less than internal diameter of outer cover 1mm about, material is plastics, like tetrafluoroethylene etc., thickness is at 0.5-1.5mm.
Aforesaid a kind of split type composite electrostatic spinning device, the other end of described shell connects a seal cover, between adopt threaded connection mode.
The present invention includes parts such as seal cover, core body, shell, outer spray silk syringe needle, interior spray silk syringe needle, fixing seal pad.Wherein, the axle center of the central shaft of core body and outer spinning head is on same straight line.Number, interior external diameter and the distribution thereof etc. of a spray syringe needle in interior spray silk syringe needle is controlled through core body; Be arranged in parallel between interior spray silk syringe needle; After selecting certain core body and outer spinning head for use; In distance between distance, interior spray silk syringe needle and outer spinning head between spray silk syringe needle also just fixing, interiorly spray that distance that a syringe needle stretches out outer spinning head can be regulated respectively and unaffected each other; There are two projections the outer surface upper end of core body, and this projection can exactly embed in the groove of housing parts.This design can guarantee when screwing hermetic covers, can not cause between core body and fixing seal pad the mutual changing of the relative positions and internally the distribution of syringe needle impact; The interior external diameter of outer spinning head can change as the case may be.In the process that filament spinning component is installed, earlier interior spray silk syringe needle is passed from core body, and process and supporting fixing seal pad, will be positioned in the shell with upper-part then, screw on seal cover, should not make seal cover overwind this moment.After installing outer spinning head, spray silk syringe needle stretches out after the distance of outer spinning head again that screwing hermetic covers in regulating.
Select one or more interior liquid for use and choose suitable outer liquid, interior liquid of the same race can be advanced by a syringe pump, and different interior liquid then can select for use different syringe pumps to advance.The lower end of the outer spinning head of composite electrostatic spinning spinning head is connected on the high pressure generating apparatus; A spray silk syringe needle stretches out the distance of outer spinning head and the fltting speed of inside and outside liquid in regulating, and makes the interior spinning solution in the compound taylor cone not be in contact with one another when the spray silk is put or be mixed into suitable reaching.Regulation voltage makes drop under the high voltage electric field effect, overcome surface tension and forms jet, forms fiber through solidifying the back, is received on the gathering-device of ground connection below the spinning head.The composite electrostatic spinning fiber that obtains, dissolving or high-temperature process can obtain the micro-/ nano pipe after removing internal fiber, also can obtain having the compound micro/nano-fibre of tubulose.The device that a kind of split type composite electrostatic spinning device of the present invention is core body-shell split-type design; Can effectively satisfy on the one hand in regulating arbitrarily spray silk syringe needle stretch out outer spinning head apart from the time make in constant between the spray syringe needle apart from maintenance; This device is processed easily on the other hand, and the fractionation of device, cleaning, replacing and maintenance are very easy.
1, whole device has been divided into shell and core body two large divisions, the fractionation of device, cleaning, assembling all are easy to operation.
2, as long as change the number that core body just can change interior spray silk syringe needle, change very convenient.
3, leave the hole of certain intervals on the core body, the external diameter of hole and interior spray silk syringe needle is suitable, and the constant distance in can be good at guaranteeing between the spray silk syringe needle is constant, and the distance between outer spinning head and the interior spray silk syringe needle can keep invariable.Core body has also played the effect of constant distance between the fixing interior spray silk syringe needle; So between hole on the core body and the interior spray silk syringe needle too big space can not be arranged; Otherwise when doing other adjustings, interior spray silk syringe needle can take place loosening and cause the distance between the interior spray silk syringe needle to change.
4, change distance and distribution thereof between the interior spray silk syringe needle through the type that changes core body, its distribution can be that the geometry of rule also can be irregularly shaped.Can prepare similar bilateral fibre or cladded type fiber.
5, the aperture of interior spray silk syringe needle can be the same or different, and this changes according to specific requirement.
6, can be through changing the aperture that outer spinning head changes outer spinning head, can change suitable outer spinning head according to feature selecting such as the viscosity of different outer spray silk liquid, surface tension like this.Composite electrostatic spinning has much relations with the viscosity of spinning solution, surface tension, conductance etc., if the spinning fluid viscosity of selecting is very big, will select outer spinning head aperture bigger relatively so certainly, and perhaps motive force is very big otherwise spinning solution does not flow out.If viscosity is very little or surface tension is very little, then to select a little bit smaller outer spinning head in aperture.
A kind of split type composite electrostatic spinning device of the present invention can be prepared the composite fibre of single core or multicore structure easily.And this spinning head dismounting is easy, cleans easily, can be used on the batch process device of micro-nano complex fiber.
Beneficial effect
Advantage of the present invention is: parameters such as the number of spray silk syringe needle, size, distribution in 1, this composite electrostatic spinning spinning head apparatus can change through the core body that changes spinning syringe needle inside; Variety renovation is convenient, is suitable for the preparation of plurality of specifications electrospun fibers; 2, this electrostatic spinning apparatus has easy to processly, is easy to installation and removal.
Description of drawings
Fig. 1 is a structural representation of the present invention
Fig. 2 is a shell section sketch map of the present invention
Fig. 3 is a core body generalized section of the present invention
Fig. 4 is the schematic top plan view of single hole core body
Fig. 5 is the schematic top plan view of diplopore core body
Fig. 6 is the schematic top plan view of three hole core bodys
Fig. 7 is an outer spray silk syringe needle generalized section of the present invention
Wherein 1 is that seal cover 2 is that outer spinning head 3 is that interior spray silk syringe needle 4 is that core body 5 is that shell 6 is fixing seal pads
The specific embodiment
Below in conjunction with the specific embodiment, further set forth the present invention.Should be understood that these embodiment only to be used to the present invention is described and be not used in the restriction scope of the present invention.Should be understood that in addition those skilled in the art can do various changes or modification to the present invention after the content of having read the present invention's instruction, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
A kind of split type composite electrostatic spinning device of the present invention; As shown in Figure 1, to form by seal cover 1, core body 4, shell 5, outer spinning head 2, interior spray silk syringe needle 3 and fixing seal pad 6, shell 5 is tubular; One end of shell 5 is installed an outer spinning head; The other end of shell 5 connects a seal cover 1, and core body 4 is installed in the shell 5, is lined with fixing seal pad 6 between the outer spinning head end of the installation of core body 4 and shell 5; Spray silk syringe needle installing hole at least one is arranged on the core body 4, and interior spray silk syringe needle 3 is installed in the interior spray silk syringe needle installing hole of core body 4.
Wherein, aforesaid a kind of split type composite electrostatic spinning device, the central axis of described core body and the central axis of outer spinning head are on same straight line.
Aforesaid a kind of split type composite electrostatic spinning device, described shell 5 cylindrical (as shown in Figure 2), core body 4 cylindrical (as shown in Figure 3).
Aforesaid a kind of split type composite electrostatic spinning device, described core body 4 has the anti-rotation limiting structure with shell 5.
Aforesaid a kind of split type composite electrostatic spinning device, described anti-rotation limiting structure are that core body 4 outer surfaces have the protrusion piece, and shell 5 correspondence positions have the bayonet socket of depression, and the protrusion piece of assembling back core body 4 is stuck in the bayonet socket of shell 5.
Aforesaid a kind of split type composite electrostatic spinning device has at least one interior spray silk syringe needle installing hole to be meant a spray silk syringe needle installing hole in 1～4 is arranged on the core body 4 on the described core body 4.Single hole core body, hole be the middle of core body (as shown in Figure 4) again, also can depart from centermost (core shift structure), or even make the inwall formation undercut construction of outer wall with the outer spinning head 2 of interior spinning head 3.
Aforesaid a kind of split type composite electrostatic spinning device, described in spray silk syringe needle installing hole quantity during greater than two, it is distributed as regular polygon and arranges.The distribution of interior spray silk syringe needle 3 is not necessarily the equilateral triangle or the square of rule.Fig. 6 is the schematic top plan view of three hole core bodys, the interior spray silk syringe needle installing hole that has three equilateral triangles to distribute on the core body 4, spray silk syringe needle 3 in being used to install.
Aforesaid a kind of split type composite electrostatic spinning device; When spray silk syringe needle installing hole quantity is greater than one in described; After interior spinning head 3 is installed in core body; The outer wall of spray silk syringe needle 3 can form undercut construction with the inwall of outer spinning head 2 in some or all of, and spray silk liquid is not coated on the fiber of similar parallel construction in the outer spray silk liquid fully in being used for preparing.
Aforesaid a kind of split type composite electrostatic spinning device, described in spray silk syringe needle installing hole quantity during greater than one, interior spray silk syringe needle 3 and outer spinning head 2 maintenances one segment distance prepare the covered fiber that a kind of fibre bag is covered with one or more components.
Aforesaid a kind of split type composite electrostatic spinning device, the other end of described shell 5 connect the connection of a seal cover 1 and adopt threaded connection mode.
Fig. 5 is the schematic top plan view of diplopore core body.
Fig. 7 is an outer spray silk syringe needle generalized section of the present invention.The lateral layout of spinning head has the woven hose that is used for importing outer spray silk liquid outside.The upper section of outer spinning head 2 has with the supporting external screw thread of shell 5.The outer spinning head aperture that relates in this patent all refers to the aperture of outer spinning head 2 below parts.
Claims (8)
1. split type composite electrostatic spinning device, it is characterized in that: be made up of seal cover, core body, shell, outer spinning head, interior spray silk syringe needle and fixing seal pad, shell is tubular; One end of shell is installed an outer spinning head; The other end of shell connects a seal cover, and core body is installed in the shell, and core body and shell are installed between the outer spinning head end and be lined with the fixing seal pad; Spray silk syringe needle installing hole at least one is arranged on the core body, and interior spray silk syringe needle is installed in the interior spray silk syringe needle installing hole of core body.
2. a kind of split type composite electrostatic spinning device as claimed in claim 1 is characterized in that the central axis of described core body and the central axis of shell are on same straight line; The central axis of described core body and the central axis of outer spinning head are on same straight line.
3. a kind of split type composite electrostatic spinning device as claimed in claim 1 is characterized in that described shell is cylindrical, and core body is cylindrical.
4. like claim 1 or 3 described a kind of split type composite electrostatic spinning devices, it is characterized in that described core body and shell have the anti-rotation limiting structure.
5. a kind of split type composite electrostatic spinning device as claimed in claim 4 is characterized in that described anti-rotation limiting structure is that core outer surface has the protrusion piece, and the shell correspondence position has the bayonet socket of depression, and the protrusion piece of assembling back core body is stuck in the bayonet socket of shell.
6. a kind of split type composite electrostatic spinning device as claimed in claim 1 is characterized in that, has at least one interior spray silk syringe needle installing hole to be meant on the described core body spray silk syringe needle installing hole in 1～4 is arranged on the core body.
7. like claim 1 or 6 described a kind of split type composite electrostatic spinning devices, it is characterized in that, described in spray silk syringe needle installing hole quantity during greater than two, it is distributed as regular polygon and arranges.
8. a kind of split type composite electrostatic spinning device as claimed in claim 1 is characterized in that, the other end of described shell adopts threaded connection mode to connect a seal cover.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110022484A CN102051693B (en) | 2011-01-20 | 2011-01-20 | Split type composite electrostatic spinning device |
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| CN201110022484A CN102051693B (en) | 2011-01-20 | 2011-01-20 | Split type composite electrostatic spinning device |
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| CN102051693A CN102051693A (en) | 2011-05-11 |
| CN102051693B true CN102051693B (en) | 2012-09-19 |
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| CN201110022484A Expired - Fee Related CN102051693B (en) | 2011-01-20 | 2011-01-20 | Split type composite electrostatic spinning device |
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| CN105696197B (en) * | 2016-03-22 | 2018-01-19 | 东华大学 | A kind of c-type core-shell nano tunica fibrosa and its eccentric shaft electrostatic spinning preparation method |
| CN106283221B (en) * | 2016-11-15 | 2018-12-14 | 上海理工大学 | One sheath twin-core microfluidic control spray head of one kind, device for spinning and spinning process |
| CN106381532B (en) * | 2016-11-21 | 2018-07-31 | 上海理工大学 | Electro spinning method for preparing with material gradient distribution characteristics nanofiber |
| CN106591966B (en) * | 2016-11-21 | 2020-11-24 | 上海理工大学 | Electrohydrodynamic preparation method of silk particle parallel micro-nano structure |
| CN106435780B (en) * | 2016-12-08 | 2019-03-05 | 上海理工大学 | A kind of microfluidic control spray head, device for spinning and the spinning process of three Room interconnection arrangement |
| CN107475783A (en) * | 2017-10-17 | 2017-12-15 | 天津瑞创微纳科技有限公司 | A kind of coaxial electrostatic spinning shower nozzle |
| CN112695437B (en) * | 2020-12-19 | 2022-11-04 | 杭州文宇纺织有限公司 | Pillowcase fabric and processing technology thereof |
| CN112916484B (en) * | 2021-01-25 | 2022-05-17 | 东莞市金隆机械设备有限公司 | Electricity core shell washs tool |
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|---|---|---|---|---|
| CN2682089Y (en) * | 2003-12-10 | 2005-03-02 | 同济大学 | Multiple injector electrostatic spinning device |
| CN101156968A (en) * | 2007-10-26 | 2008-04-09 | 东华大学 | Preparation method of shell core fibre tectorial membrana endovascular stent |
| CN100577897C (en) * | 2007-01-15 | 2010-01-06 | 中国科学院化学研究所 | Multi-fluid composite electrostatic spinning device |
| CN202000035U (en) * | 2011-01-20 | 2011-10-05 | 东华大学 | Split type composite electrostatic spinning device |
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2011
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2682089Y (en) * | 2003-12-10 | 2005-03-02 | 同济大学 | Multiple injector electrostatic spinning device |
| CN100577897C (en) * | 2007-01-15 | 2010-01-06 | 中国科学院化学研究所 | Multi-fluid composite electrostatic spinning device |
| CN101156968A (en) * | 2007-10-26 | 2008-04-09 | 东华大学 | Preparation method of shell core fibre tectorial membrana endovascular stent |
| CN202000035U (en) * | 2011-01-20 | 2011-10-05 | 东华大学 | Split type composite electrostatic spinning device |
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