CN102212894B - Electrostatic spinning device with frame collecting type nanometer fiber stranded wire structure - Google Patents
Electrostatic spinning device with frame collecting type nanometer fiber stranded wire structure Download PDFInfo
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- CN102212894B CN102212894B CN 201110137420 CN201110137420A CN102212894B CN 102212894 B CN102212894 B CN 102212894B CN 201110137420 CN201110137420 CN 201110137420 CN 201110137420 A CN201110137420 A CN 201110137420A CN 102212894 B CN102212894 B CN 102212894B
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Abstract
The invention belongs to the technical field of the preparation of micro-nanometer fibers by electrostatic spinning, and relates to an electrostatic spinning device with a frame collecting type nanometer fiber stranded wire structure. In the electrostatic spinning device, an injector with a spinning spray nozzle is fixed on the electrostatic spinning device, and is connected with a positive electrode of a high-pressure power supply; a metal rectangular frame is arranged below the spinning spray nozzle, and a middle point on one edge of the metal rectangular frame is connected with a plastic clamp and is fixed on a rotating shaft of a motor; a metal circular cylinder is fixed on supports, is connected with a negative electrode of the power supply and is connected to the ground; a semi-rectangular frame is arranged inside the metal rectangular frame, and thin plastic pipes are respectively sleeved on two long edges of the semi-rectangular frame; a central point on the short edge of the semi-rectangular frame is inserted into the metal circular cylinder; the support on the left side is fixedly provided with a motor; the rotating shaft and the plastic clamp are connected with the upper part of the motor; and a connecting rod and the plastic clamp are fixed on the support on the right side. The electrostatic spinning device is simple in a structure, easy to operate, high in repeatability and convenient to popularize, and is used for preparing optical devices, electronic devices, micro-nanometer ropes of micro electro mechanical systems and the like.
Description
Technical field:
The invention belongs to electrostatic spinning and prepare the micro nanometer fiber technical field, relate to a kind of with electrostatic spinning device with frame collecting type nanometer fiber stranded wire structure.
Background technology:
Electrostatic spinning is also referred to as the spinning of polymeric spray electrostatic stretch, completely different with conventional spinning method, a kind of simple and easy to do, the method that can be directly prepares continuous nano-fibre from solution or the melt of polymer and composite, these methods are with several thousand to several ten thousand volt high-pressure electrostatics on polymer solution or the melt band, charged polymer liquid drops under the effect of electric field force and forms " Taylor " cone at spinning nozzle, when electric field force enough large, the polymer drop overcomes surface tension and forms the injection thread, when charged jet moves from the spinning nozzle end to collector, hastening phenomenon appears in the capital, thereby cause slenderizing or the splitting refinement of jet in electric field, form micro nanometer fiber; Jet is solvent evaporation or curing in course of injection, finally drops on the collector, generally forms nonwoven fabric or the fibrofelt of fiber lack of alignment.Method of electrostatic spinning has some outstanding advantages, for example equipment and experimental cost are lower, fiber yield is higher, can the continuous fiber of large-scale production, the fibre diameter of preparing several nanometers in several microns scope, be applicable to the organic and inorganic material of many variety classeses, these advantages make the electrostatic spinning nano fiber be with a wide range of applications in many civilian and militaries fields such as electronic device, optics, bio-medical, textile clothing, energy environment protections.
Traditional electrostatic spinning apparatus adopts static metallic plate/sheet or conductor to collect nanofiber, its microstructure is nonwoven fabric or the fibrofelt of lack of alignment, this has limited electrospinning fibre application in some aspects, optical polarization device (" based on scatter-type polarizing disc of directional fiber and preparation method thereof ", Chinese patent application number: 200810018826.5) for example.In order to prepare the electrospinning fibre of ordered arrangement, can improve collection mode or spinning mode, for example, 200720067712.0,200620043779.6,200610125960.6 and 200810070364.1) or disk (application number: 200820232745.0) collect, slit collects (Nano Letters the method for having reported in document and the patent has: rotor (Chinese patent application number:, 2003,3 (8): 1167-71; 200810102096.7), step collects (Chinese Physics Letters, 2008,25 (8): 3067-70), auxiliary external electric field (Polymer, 2007,48:5653-61 application number:; 200920210248.5) or magnetic field (Advanced Materials, 2007,19:3702-06 application number:; Application number: 200910206274.5) collection, framework are collected (Composites Science and Technology, 2003,63:2223-53; Biomaterials, 2005,26:1453-56) and near field electrostatic spinning (Sensors and Actuators A, 2010,164:131-136) and centrifugal electrostatic spinning (Chinese patent application number: 201010184068.1) etc.Electrospinning fibre except ordered arrangement, the electrospinning fibre of spiral winding structure (twisted wire structure, or micro-nano rope) artificial-muscle, p-n junction electronic device (Journal of Applied Physics, 2009,106:014303) etc. there is potential application the aspect.Few about the report of electro spinning nano fiber twisted wire structure both at home and abroad at present, mainly be by dicyclo collection-rotary process (Polymer, 2005,46:611-14), improved bipolar collecting method (Applied Physics Letters, 2007,90:083108; Chinese patent application number: 200910084009.4), or by alternating electric field (Applied Physics Letters, 2007,90:263902) with exchange electrostatic spinning (Advanced Materials, 2009,21:349-54) be prepared.Yet these methods of having reported exist shortcoming.For example, a kind of method, device can only prepare fiber or the twisted wire structure of ordered arrangement, can not both take into account; The ordered arrangement degree of the fiber of some methods preparation is not high enough, and the nano fiber twisted structure controllability of preparation is relatively poor, and surface topography is bad, and productivity ratio is lower, is unfavorable for suitability for industrialized production, or experiment condition is relatively harsher etc.
Summary of the invention:
The object of the invention is to overcome the deficiency that exists in the existing electrostatic spinning technology of preparing, seek to design a kind of high nanofiber of orderly degree of alignment for preparing first of proposition, be prepared into again the framework collection type electrostatic spinning apparatus of twisted wire structure, this device can prepare nanofiber and the twisted wire structure of ordered arrangement simultaneously, and the degree of fiber ordered arrangement is significantly improved than the effect of conventional frame collection type electrostatic spinning; The nano fiber twisted structure surface clean of preparation is smooth, does not have burr, and the fibre number that consists of twisted wire is controlled.
To achieve these goals, the electrostatic spinning apparatus that the present invention relates to adopts the frame-type collection structure, forms by collecting ordered fiber and preparing two funtion parts of twisted wire structure; Comprise spinning solution container or syringe needle tube, spinning nozzle or syringe needle, motor, rotating shaft, plastic clip, metal rectangular framework, half rectangular frame, thin plastic pipe, metallic cylinder, high voltage source, support and connecting rod; Syringe with spinning nozzle is fixed on above the electrostatic spinning apparatus, and spinning nozzle links to each other with the positive pole of high voltage source; The metal rectangular frame places under the spinning nozzle, and its one side mid point links to each other with plastic clip, and is fixed in the rotating shaft of motor, corresponding mid point on one side is shaped with an annulus, rotate around metallic cylinder, metallic cylinder is fixed on the support, and links to each other and ground connection with the negative pole of high voltage source; Metal rectangular frame inside is equipped with one and half rectangle frames, thin plastic pipe of each cover system on half rectangle frame, the two long limits, half rectangle frame minor face mid point inserts in the metallic cylinder, motor rotates and drives the rotation of metal rectangular frame, do not rotate and can not drive half rectangle frame, consist of the framework collection type structure of ordered nano-fibers; The right and left vertically is equipped with two supports, wherein the support in the left side fixedly is shaped with motor, be connected with rotating shaft and a plastic clip on the motor, fixed connecting rod and a plastic clip on the support on the right, connecting rod and plastic clip on the support on the right are movable dismantled and assembled structure, so that the fixed installation metallic cylinder; Thin plastic pipe on the two and half long limits of half rectangle frame is the two and half long length of sides that the Pullout structure cover is inserted in half rectangle frame, after forming ordered nano-fibers, pull out two thin plastic pipes and be plugged in respectively in the plastic clip of two supports, consist of the apparatus structure of preparation nano fiber twisted structure.
The present invention compared with prior art, the one, can prepare simultaneously in order fiber arranged and twisted wire structure, fiber ordered arrangement degree is high, the twisted wire structure and morphology is good; The 2nd, the fibre number that consists of twisted wire is controlled, when the more twisted wire structure of preparation fiber number, saves time, and enhances productivity; The 3rd, in order to control micro-nano twisted wire pattern, before carrying out twisted wire, ordered fiber is carried out hand picking; The 4th, the present invention has that equipment is simple, easy to operate, good reproducibility and be convenient to the advantage such as popularization, can be used for preparing optics, electronic device, and the micro-nano rope/artificial-muscle etc. that is used for MEMS.
Description of drawings:
Fig. 1 is the structural principle schematic diagram of apparatus of the present invention, fiber 3, motor 4, rotating shaft 5, plastic clip 6, metal rectangular framework 7, half rectangular frame 8, thin plastic pipe 9, metallic cylinder 10, high voltage source 11, support 12, connecting rod 13 and the nano fiber twisted structure 14 of the ordered arrangement of collecting comprising spinning solution container (syringe needle tube) 1, spinning nozzle (syringe needle) 2, framework.
Fig. 2 is the part-structure principle schematic of apparatus of the present invention when preparing the twisted wire structure.
Fig. 3 is the optical photograph that framework is collected the ordered arrangement fiber of preparation.
Fig. 4 is the scanning electron microscope sem photo that framework is collected the ordered arrangement fiber of preparation.
Fig. 5 is the scanning electron microscope sem photo of the nano fiber twisted structure for preparing of the present invention.
The specific embodiment:
Be described further below in conjunction with accompanying drawing and by embodiment.
The electrostatic spinning apparatus that present embodiment relates to adopts the frame-type collection structure, forms by collecting ordered fiber and preparing two funtion parts of twisted wire structure; Comprise spinning solution container (syringe needle tube) 1, spinning nozzle (syringe needle) 2, motor 4, rotating shaft 5, plastic clip 6, metal rectangular framework 7, half rectangular frame 8, thin plastic pipe 9, metallic cylinder 10, high voltage source 11, support 12 and connecting rod 13; Syringe 1 with spinning nozzle 2 is fixed on suitable distance above the gathering-device, and spinning nozzle 2 links to each other with the positive pole of high voltage source 11; Metal rectangular frame 7 places under the spinning nozzle 2, its one side mid point links to each other with plastic clip 6, and be fixed in the rotating shaft 5 of motor 4, corresponding mid point on one side is shaped with an annulus, rotate around metallic cylinder 10, metallic cylinder 10 is fixed on the support 12, and links to each other and ground connection with the negative pole of high voltage source 11; Metal rectangular frame 7 inside are equipped with one and half rectangle frames 8, half rectangle frame respectively overlaps a thin plastic pipe 9 on 8 liang of long limits, half rectangle frame, 8 minor face mid points insert in the metallic cylinder 10, motor 4 rotates and drives 7 rotations of metal rectangular frame, do not rotate and can not drive half rectangle frame 8, consist of the framework collection type structure of ordered nano-fibers; The right and left vertically is equipped with two supports 12, wherein the support 12 in the left side fixedly is shaped with motor 4, be connected with rotating shaft 5 and a plastic clip 6 on the motor 4, fixed connecting rod 13 and a plastic clip 6 on the support 12 on the right, connecting rod 13 and plastic clip 6 on the support 12 on the right are movable dismantled and assembled structure, so that fixed installation metallic cylinder 10; Thin plastic pipe 9 on the two and half long limits of half rectangle frame 8 is inserted in the two and half long length of sides of half rectangle frame 8 for the Pullout structure cover, after forming ordered nano-fibers, pull out two thin plastic pipes 9 and be plugged in respectively in the plastic clip 6 of two supports 12, consist of the apparatus structure of preparation nano fiber twisted structure.
Embodiment 1: preparation is the example of fiber arranged and micro-nano twisted wire structure in order.
The selected spinning solution of present embodiment is that mass percent is 20% polystyrene (PS) solution; Add 2.0g PS (molecular weight is 250000) particle and 8.0g oxolane (THF) in the conical flask first and add magneton, the room temperature lower magnetic force stirs 4h, then leaves standstill 0.5h, gets final product to get 20% PS electrostatic spinning precursor solution of homogeneous transparent; The positive pole of high voltage source 11 is connect spinning nozzle 2, and negative pole connects metallic cylinder 10 and ground connection; The top distance is 8 centimetres when regulating spinning nozzle 2 with the 7 vertical placement of metal rectangular frame, and half rectangle frame, 8 horizontal positioned are added drop-wise to spinning solution in the syringe 1 with dropper; Open motor 4 switches and adjusting rotary speed, be set as 600rpm, making it drive metal rectangular frame 7 rotates, high voltage source 11 plugs are inserted on the 220V power supply, regulate the voltage-regulation knob of high voltage source 11 and Control of Voltage panel, setting voltage is 20kV, and press power switch, make it to be in open mode, this moment, spinning nozzle 2 was coupled with high pressure, thereby the polarization spinning solution forms the fiber jet, the fiber laydown that generates is on metal rectangular frame 7, and then rotation is wrapped on the thin plastic pipe 9 of half rectangle frame 8 thereupon, has finally collected the electrostatic spinning nano fiber 3 of ordered arrangement at half rectangle frame 9, its orientation is perpendicular to the thin plastic pipe 9 on half rectangle frame 8, as shown in Figure 3; Spinning finishes, and presses respectively power switch and the motor switch of Control of Voltage panel, makes it to be in closed condition; And regulation voltage and rotational speed regulation knob, make it to make zero, pull up high voltage source 11 plugs.
Present embodiment is during for the preparation of nanometer twisted wire structure or micro-nano rope, half rectangle frame 8 and the thin plastic pipe 9 that has parallel fibers to connect are taken off together, regulate the spacing of two supports 12, two plastic tubes 9 are clipped in respectively on two plastic clip 6, take off half rectangle frame 8, open motor 4 switches, slowly increase speed, motor 4 drives a thin plastic pipe 9 and rotates, the parallel fibers 3 that connects 9 of two thin plastic pipes is twisted together, treated 5～10 seconds, namely obtain twisted wire structure 14, close motor 4 and rotational speed regulation knob and make it to make zero, even with the micro-nano twisted wire pattern that the method obtains.
Claims (1)
1. an electrostatic spinning device with frame collecting type nanometer fiber stranded wire structure is characterized in that adopting the frame-type collection structure, forms by collecting ordered fiber and preparing two funtion parts of twisted wire structure; Comprise spinning solution container, spinning nozzle, motor, rotating shaft, plastic clip, metal rectangular framework, half rectangular frame, thin plastic pipe, metallic cylinder, high voltage source, support and connecting rod; Syringe with spinning nozzle is fixed on above the electrostatic spinning apparatus, and spinning nozzle links to each other with the positive pole of high voltage source; The metal rectangular frame places under the spinning nozzle, and its one side mid point links to each other with plastic clip, and is fixed in the rotating shaft of motor, corresponding mid point on one side is shaped with an annulus, rotate around metallic cylinder, metallic cylinder is fixed on the support, and links to each other and ground connection with the negative pole of high voltage source; Metal rectangular frame inside is equipped with one and half rectangle frames, thin plastic pipe of each cover system on half rectangle frame, the two long limits, half rectangle frame minor face mid point inserts in the metallic cylinder, motor rotates and drives the rotation of metal rectangular frame, do not rotate and can not drive half rectangle frame, consist of the framework collection type structure of ordered nano-fibers; The right and left vertically is equipped with two supports, wherein the support in the left side fixedly is shaped with motor, be connected with rotating shaft and a plastic clip on the motor, fixed connecting rod and a plastic clip on the support on the right, connecting rod and plastic clip on the support on the right are movable dismantled and assembled structure, so that the fixed installation metallic cylinder; Thin plastic pipe on the two and half long limits of half rectangle frame is that the Pullout structure cover is inserted on the two and half long limits of half rectangle frame, after forming ordered nano-fibers, pull out two thin plastic pipes and be plugged in respectively in the plastic clip of two supports, consist of the apparatus structure of preparation nano fiber twisted structure.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110137420 CN102212894B (en) | 2011-05-14 | 2011-05-14 | Electrostatic spinning device with frame collecting type nanometer fiber stranded wire structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201110137420 CN102212894B (en) | 2011-05-14 | 2011-05-14 | Electrostatic spinning device with frame collecting type nanometer fiber stranded wire structure |
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| CN102212894A CN102212894A (en) | 2011-10-12 |
| CN102212894B true CN102212894B (en) | 2013-01-02 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102367593B (en) * | 2011-11-30 | 2013-08-07 | 福建农林大学 | Drawing and inserting type collector of nano fiber electrostatic spinning flat plate |
| CN106591968B (en) * | 2016-12-21 | 2019-05-07 | 暨南大学 | Multi-direction rotation wire drawing device and its application apparatus and method applied to electrostatic spinning |
| CN110306292B (en) * | 2018-03-20 | 2023-08-15 | 河南神玖复合材料有限公司 | Quartz fiber revolution body product processing equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101003917A (en) * | 2007-01-19 | 2007-07-25 | 中国民航大学 | Complex type electrostatic spinning method with positive and negative electrodes in same electric field, and application |
| CN101096774A (en) * | 2007-06-27 | 2008-01-02 | 哈尔滨工业大学深圳研究生院 | Large area and orientationally arranged polyalcohol nano fibre preparing device and preparation method |
| CN101250769A (en) * | 2008-04-16 | 2008-08-27 | 沈阳航空工业学院 | Method for manufacturing electric spinning of high-powered carbon nano-tube/PBO composite fiber |
| CN101886301A (en) * | 2009-05-12 | 2010-11-17 | 国家纳米科学中心 | Device for twisting nanometer fibers prepared by electrostatic spinning into stranded wires |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5065704B2 (en) * | 2007-02-22 | 2012-11-07 | 帝人株式会社 | Method for producing twisted yarn |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101003917A (en) * | 2007-01-19 | 2007-07-25 | 中国民航大学 | Complex type electrostatic spinning method with positive and negative electrodes in same electric field, and application |
| CN101096774A (en) * | 2007-06-27 | 2008-01-02 | 哈尔滨工业大学深圳研究生院 | Large area and orientationally arranged polyalcohol nano fibre preparing device and preparation method |
| CN101250769A (en) * | 2008-04-16 | 2008-08-27 | 沈阳航空工业学院 | Method for manufacturing electric spinning of high-powered carbon nano-tube/PBO composite fiber |
| CN101886301A (en) * | 2009-05-12 | 2010-11-17 | 国家纳米科学中心 | Device for twisting nanometer fibers prepared by electrostatic spinning into stranded wires |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2008-202190A 2008.09.04 |
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