CN203976986U - A kind of combination electrostatic spinning apparatus of preparing multistage superfine fibre - Google Patents

A kind of combination electrostatic spinning apparatus of preparing multistage superfine fibre Download PDF

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Publication number
CN203976986U
CN203976986U CN201420363083.6U CN201420363083U CN203976986U CN 203976986 U CN203976986 U CN 203976986U CN 201420363083 U CN201420363083 U CN 201420363083U CN 203976986 U CN203976986 U CN 203976986U
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China
Prior art keywords
shower nozzle
zone circle
melt
circle electrode
solution
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Expired - Fee Related
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CN201420363083.6U
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Chinese (zh)
Inventor
李好义
马穆德
杨卫民
陈宏波
李小虎
丁玉梅
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Beijing University of Chemical Technology
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Beijing University of Chemical Technology
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Abstract

The utility model discloses a kind of combination electrostatic spinning apparatus of preparing multistage superfine fibre, belong to electrostatic spinning field, by melt shower nozzle, zone circle electrode, solution shower nozzle, receiving system, HV generator and system framework, melt shower nozzle is arranged on the top of framework, zone circle electrode is positioned at below melt shower nozzle, the central shaft of zone circle electrode and melt shower nozzle place central shaft are coaxial, multiple solution spinning nozzles place plane is parallel with zone circle electrode plane, multiple solution spinning nozzles place plane is positioned at zone circle electrode plane downside, multiple solution spinning nozzles are circumferentially uniformly distributed along zone circle electrode place axle, receiving system is a distance below zone circle electrode, HV generator has two, a High voltage output terminates on zone circle electrode, another High voltage output terminates on the solution shower nozzle of series connection, receiving system and melt shower nozzle ground connection.The utility model has been realized the preparation of multistage superfine fibre, for new material exploitation provides multiple operating space.

Description

A kind of combination electrostatic spinning apparatus of preparing multistage superfine fibre
Technical field
The utility model relates to a kind of combination electrostatic spinning apparatus of preparing multistage superfine fibre, belongs to electrostatic spinning field.
Background technology
Continuous superfine fibre prepared by electrostatic spinning technique, owing to having fibre diameter and the fibre gap of high-specific surface area, high porosity and micro-/receive level, is widely used in the aspects such as high-performance filtration, MEMS, lithium battery diaphragm and electrode material, biological medicine and biochemical protection.
Electrostatic spinning technique is divided into melt electrostatic spinning technology and solution spining technology.The fiber that wherein prepared by solution electrostatic spinning technique is thinner, fibre diameter major part between 100-1000nm, fiber densification, between fiber, hole is also mostly in 1 μ m, has very high specific area; And fibre fineness prepared by melt electrostatic spinning is relatively thick, fibre diameter major part is between 1-10 μ m, the fiber that even prepared by some heavy viscous material is at tens microns, but its fibre strength is high, porosity is generally higher than 90%, fibre gap, is compared with solution electrospun fiber membrane to hundreds of micron at several microns, and specific area is wanted little several times of decades of times even.In a lot of Application Areass as aspects such as biological medicine support, functional support materials, need fiber three-dimensional bracket structure to possess high strength, high porosity, need again higher specific area and larger fiber hole, and melt electrospinning fibre and the nano level solution electrospinning fibre of the micron/submicron level of winding doping just in time meet this application needs mutually.
Can meet at present the preparation technology of this demand and the document of device and patent report less.Kidoa-ki S etc. receives under many shower nozzles continuously by mobile reception device, has prepared the WEB (Kidoaki S, Kwon I K, Matsuda T.Biomaterials, 2005,26:37-46) of the mutual blending of different materials.
The utility model combines melt electrostatic spinning device and solution device for spinning, realizes the winding of nano-scale fiber on micron order fiber by design, i.e. the texture of multilevel hierarchy will provide very large space for different application exploitation.
Utility model content
The utility model object is to propose a kind of combination electrostatic spinning apparatus and method of preparing multistage superfine fibre, the solution spinning nozzle of electrostatic spinning and melt spinning shower nozzle are arranged on to specific position, by the reasonable disposition to melt electrostatic spinning shower nozzle and solution electrostatic spinning nozzle technological parameter, make the solution electrostatic spinning jet of Nano grade under the effect of charge attraction, adhesion is wrapped on the melt electrostatic spinning jet of micron level, and finally with flat board, the receive mode of rotation roller or three-dimensional motion receiving platform, collect and obtain multistage super-fine fiber material.New composite possesses the common advantage of solution electrostatic spinning and melt electrostatic spinning, there is higher specific area, tensile strength and porosity, possess micron order spacing between solution electrospinning fibre nano surface level hole and melt electricity spinning fibre simultaneously, will provide strong support for the application of the aspects such as high efficiency filter, medical support, high strength catalyst cupport.
The technical solution of the utility model is, a kind of combination electrostatic spinning apparatus of preparing multistage superfine fibre, and its chief component has: melt shower nozzle, zone circle electrode, solution shower nozzle, receiving system, HV generator and framework.Melt shower nozzle is arranged on the top of framework, zone circle electrode is positioned at below melt shower nozzle, the central shaft at the central shaft of zone circle electrode and melt shower nozzle place is coaxial, multiple (>=2) solution spinning nozzle place plane is parallel with zone circle electrode plane, multiple (>=2) solution spinning nozzle place plane is positioned at zone circle electrode plane downside, multiple solution spinning nozzles are circumferentially uniformly distributed along zone circle electrode place axle, receiving system is a distance below zone circle electrode, HV generator has two, a High voltage output terminates on zone circle electrode, another High voltage output terminates on the solution shower nozzle of series connection, receiving system and melt shower nozzle ground connection.
A kind of combination electrostatic spinning apparatus of preparing multistage superfine fibre of the utility model, wherein melt shower nozzle can be one-jet or many jets, and there is air-flow accessory system, jet passes zone circle electrode under the auxiliary effect of air-flow, then converge with solution electrospinning jet, melt shower nozzle is connected with melt plasticizing apparatus, melt plasticizing apparatus is to melt shower nozzle continuous feeding, the type of melt plasticizing apparatus is a lot, there are single screw rod and multiscrew, between melt shower nozzle and plasticizing apparatus, can also be connected Melt Pump, make melt shower nozzle obtain the polymer melt of enough pressure and flow.
A kind of combination electrostatic spinning apparatus of preparing multistage superfine fibre of the utility model, wherein zone circle electrode can be the good metal materials of electric conductivity such as copper, iron, aluminium, and zone circle electrode is circular, and inner ring diameter is 10-200mm, and race diameter is 20-400mm.In order to strengthen the stretching action of electric field to melt, the diameter of inner ring can be smaller, as long as do not encounter and be advisable when melt silk swings.In the time that solution shower nozzle is more, solution silk directive melt silk, the diameter of inner ring and outer ring is all slightly larger, so the diameter of inner ring and outer ring has a rational scope.
A kind of combination electrostatic spinning apparatus of preparing multistage superfine fibre of the utility model, solution shower nozzle is one-jet shower nozzle, solution shower nozzle is injection needle, its flow is by micro-flow pump control, and multiple solution shower nozzles can spray a kind of material, also can spray various materials, every kind of material connects a micro-flow pump, the solution shower nozzle that material is identical, its runner is identical, even material spray continuously under the effect of micro-flow pump.
A kind of combination electrostatic spinning apparatus of preparing multistage superfine fibre of the utility model, wherein receiving system is grounded metal material, can be dull and stereotyped reception, can be that roller receives, and can be also that X-Y-Z motion workbench receives.
A kind of combination electrostatic spinning apparatus of preparing multistage superfine fibre of the utility model, its another kind of voltage-drop loading mode can be also on melt shower nozzle, to load high-voltage positive electrode or negative pole, and on solution shower nozzle, load high-field electrode, zone circle electrode and the receiving system ground connection of opposite polarity.Between solution shower nozzle and melt shower nozzle, solution shower nozzle and receiving system, all there is voltage difference between solution shower nozzle and zone circle electrode, melt silk received device under the effect of air-flow and electric field is collected, melt silk meets with solution silk in the process that arrives receiving system, solution silk directive melt silk, solution silk and melt silk bonding and be wound around, arrive together receiving system.Solution filament diameter is distributed in nanoscale, and melt filament diameter is distributed in micron or submicron order, and what finally obtain is multistage superfine fibre.
Adopt a kind of combination electrostatic spinning apparatus of preparing multistage superfine fibre of the utility model to prepare the method for multistage superfine fibre, its operating procedure is: melt plasticizing apparatus is to melt shower nozzle feed, after the supply of melt continous-stable, open melt shower nozzle air-flow auxiliary equipment, connect the power supply of the electrostatic generator being connected with zone circle electrode, make zone circle electrode charged, regulation voltage, make melt electrospinning jet generation, then open solution shower nozzle continuous feeding device, and convey another connected HV generator of solution shower nozzle and switch on, multiple solution shower nozzles produce solution electrospinning jet, multiple solution shower nozzles spray at the effect Xia Xiang center of electric field force melt electrospinning jet, when the melt jet swinging with after the moving solution jet of whip meets, the silk of solution electrospinning is collected on receiving system after adhering to and be wound around with the silk of melt electrospinning.Solvent in solution silk volatilizees before arrival receiving system, the multistage superfine fibre of composite fibre on receiving system.
The utility model is a kind of prepares the combination electrostatic spinning apparatus preparation of multistage superfine fibre by Position Design and the parameter regulation and control of solution shower nozzle and melt shower nozzle, by combination electrostatic spinning apparatus, the silk of solution electrospinning is collected on receiving system after adhering to and be wound around with the silk of melt electrospinning, realize the preparation of multistage superfine fibre, for new material exploitation provides multiple operating space, thereby meet different application field to fibre structure particular/special requirement.New composite possesses the common advantage of solution electrostatic spinning and melt electrostatic spinning, there is higher specific area, tensile strength and porosity, possess micron order spacing between solution electrospinning fibre nano surface level hole and melt electricity spinning fibre simultaneously, will provide strong support for the application of the aspects such as high efficiency filter, medical support, high strength catalyst cupport.
Brief description of the drawings
Fig. 1 is a kind of combination electrostatic spinning apparatus schematic diagram of preparing multistage superfine fibre of the utility model
1-melt shower nozzle, 2-zone circle electrode, 3-solution shower nozzle, 4-receiving system, 5-electrostatic generator.
Detailed description of the invention
A kind of combination electrostatic spinning apparatus of preparing multistage superfine fibre of the utility model, as shown in Figure 1, its chief component has: melt shower nozzle 1, zone circle electrode 2, solution shower nozzle 3, receiving system 4, HV generator 5 and framework.Wherein the central shaft at zone circle electrode 2 and melt shower nozzle 1 place is coaxial, multiple (>=2) solution shower nozzle 3 axis place planes are parallel with zone circle electrode plane, solution shower nozzle 3 is at zone circle electrode plane downside, multiple solution shower nozzles 3 are circumferentially uniformly distributed along zone circle electrode 2 place axles, multiple solution shower nozzles 3 link together by conductive material, receiving system 4 is a distance below multiple solution shower nozzles 3, HV generator 5 has two, a High voltage output terminates on zone circle electrode 2, another high-voltage output end series connection is received on solution shower nozzle 3, receiving system 4 and melt shower nozzle 1 ground connection, multiple solution shower nozzles 3 are all charged.
A kind of combination electrospinning process of preparing multistage superfine fibre the utility model proposes, its operating procedure is: after waiting melt continous-stable to supply with, open melt shower nozzle 1 air-flow auxiliary equipment, connect the power supply of the electrostatic generator being connected with zone circle electrode 2, make zone circle electrode 2 charged, regulation voltage, make melt electrospinning jet generation, then open solution shower nozzle continuous feeding device, and convey solution shower nozzle 3 another connected HV generator 5 and switch on, multiple solution shower nozzles 3 produce solution electrospinning jet, multiple solution shower nozzles 3 spray at the effect Xia Xiang center of electric field force melt electrospinning jet, when the melt jet swinging with after the moving solution jet of whip meets, the silk of solution electrospinning is collected on receiving system 4 after adhering to and be wound around with the silk of melt electrospinning.
An embodiment as shown in Figure 1, melt shower nozzle 1 is inner conical surface shower nozzle, and inner conical surface lower end edge diameter is 26mm, and the auxiliary speed of air-flow is 8m/s, zone circle electrode 2 internal diameters are 40mm, outer ring is 80mm, and melt jet radical is 60, and melt is polypropylene (PP), 260 DEG C of melt temperatures, melt flow 13g/h, zone circle electrode 2 is 20mm with the distance of melt shower nozzle 1, zone circle electrode 2 on-load voltages are 20kV; Solution shower nozzle 3 is injection needle, syringe needle internal diameter 0.41mm, spinning material adopts the aqueous solution of complete alcoholysis polyvinyl alcohol (PVA1799) 10% mass fraction, 3 solution shower nozzle 3 hoop diameter 200mm, around the melt shower nozzle 1 place axle collar to uniform, the distance of solution shower nozzle 3 place faces and zone circle electrode is 240mm, HV generator 5 has two, receiving system 4 adopts roller structure, receiving system 4 is 200mm with the distance of zone circle electrode 2, and obtaining fiber is that average diameter is the multistage doping fiber of PP of 300nmPVA and 1.8 μ m.

Claims (8)

1. prepare the combination electrostatic spinning apparatus of multistage superfine fibre for one kind, it is characterized in that: mainly by melt shower nozzle, zone circle electrode, solution shower nozzle, receiving system, HV generator and system framework, melt shower nozzle is arranged on the top of framework, zone circle electrode is positioned at below melt shower nozzle, the central shaft at the central shaft of zone circle electrode and melt shower nozzle place is coaxial, multiple solution spinning nozzles place plane is parallel with zone circle electrode plane, multiple solution spinning nozzles place plane is positioned at zone circle electrode plane downside, multiple solution spinning nozzles are circumferentially uniformly distributed along zone circle electrode place axle, receiving system is a distance below zone circle electrode, HV generator has two, a High voltage output terminates on zone circle electrode, another High voltage output terminates on the solution shower nozzle of series connection, receiving system and melt shower nozzle ground connection.
2. a kind of combination electrostatic spinning apparatus of preparing multistage superfine fibre according to claim 1, is characterized in that: melt shower nozzle is one-jet shower nozzle or many fluid jet nozzles, and has air-flow accessory system.
3. a kind of combination electrostatic spinning apparatus of preparing multistage superfine fibre according to claim 1, is characterized in that: zone circle electrode is copper, iron or aluminium.
4. a kind of combination electrostatic spinning apparatus of preparing multistage superfine fibre according to claim 3, is characterized in that: zone circle electrode is circular, and inner ring diameter is 10-200mm, and race diameter is 20-400mm.
5. a kind of combination electrostatic spinning apparatus of preparing multistage superfine fibre according to claim 1, is characterized in that: solution shower nozzle is one-jet shower nozzle, and solution shower nozzle is injection needle, and its flow is by micro-flow pump control.
6. a kind of combination electrostatic spinning apparatus of preparing multistage superfine fibre according to claim 1, is characterized in that: receiving system is grounded metal material.
7. a kind of combination electrostatic spinning apparatus of preparing multistage superfine fibre according to claim 6, is characterized in that: receiving system is dull and stereotyped reception, or roller receives, or X-Y-Z motion workbench receives.
8. a kind of combination electrostatic spinning apparatus of preparing multistage superfine fibre according to claim 1, it is characterized in that: voltage-drop loading mode is changed into and on melt shower nozzle, loaded high-voltage positive electrode or negative pole, on solution shower nozzle, load the high-field electrode of opposite polarity, zone circle electrode and receiving system ground connection.
CN201420363083.6U 2014-07-02 2014-07-02 A kind of combination electrostatic spinning apparatus of preparing multistage superfine fibre Expired - Fee Related CN203976986U (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104088022A (en) * 2014-07-02 2014-10-08 北京化工大学 Combination electrostatic spinning device and method for preparing multi-stage ultrafine fiber
CN104887282A (en) * 2015-05-25 2015-09-09 东华大学 Vascular repair device
CN105350098A (en) * 2015-11-13 2016-02-24 广东工业大学 Preparation device and method for nanofiber support having three-dimensional structure
CN105401229A (en) * 2015-08-24 2016-03-16 武汉医佳宝生物材料有限公司 Electrostatic spinning multi-nuzzle arc jet apparatus
CN113265770A (en) * 2021-04-07 2021-08-17 广东工业大学 Preparation method of porous multi-scale fiber with core-shell structure and mask

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104088022A (en) * 2014-07-02 2014-10-08 北京化工大学 Combination electrostatic spinning device and method for preparing multi-stage ultrafine fiber
CN104887282A (en) * 2015-05-25 2015-09-09 东华大学 Vascular repair device
CN105401229A (en) * 2015-08-24 2016-03-16 武汉医佳宝生物材料有限公司 Electrostatic spinning multi-nuzzle arc jet apparatus
CN105350098A (en) * 2015-11-13 2016-02-24 广东工业大学 Preparation device and method for nanofiber support having three-dimensional structure
CN113265770A (en) * 2021-04-07 2021-08-17 广东工业大学 Preparation method of porous multi-scale fiber with core-shell structure and mask

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CF01 Termination of patent right due to non-payment of annual fee
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Granted publication date: 20141203

Termination date: 20170702