WO2022110684A1 - Controllable rotary electrostatic spinning device - Google Patents
Controllable rotary electrostatic spinning device Download PDFInfo
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- WO2022110684A1 WO2022110684A1 PCT/CN2021/094108 CN2021094108W WO2022110684A1 WO 2022110684 A1 WO2022110684 A1 WO 2022110684A1 CN 2021094108 W CN2021094108 W CN 2021094108W WO 2022110684 A1 WO2022110684 A1 WO 2022110684A1
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- Prior art keywords
- spinning
- conductive metal
- electrospinning device
- liquid storage
- sphere
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- 238000010041 electrostatic spinning Methods 0.000 title abstract 2
- 238000009987 spinning Methods 0.000 claims abstract description 90
- 230000007246 mechanism Effects 0.000 claims abstract description 69
- 239000007788 liquid Substances 0.000 claims abstract description 41
- 238000003860 storage Methods 0.000 claims abstract description 24
- 230000005686 electrostatic field Effects 0.000 claims abstract description 6
- 229910052751 metal Inorganic materials 0.000 claims description 33
- 239000002184 metal Substances 0.000 claims description 33
- 238000001523 electrospinning Methods 0.000 claims description 23
- 239000000463 material Substances 0.000 claims description 10
- 230000005540 biological transmission Effects 0.000 claims description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 4
- 229910052737 gold Inorganic materials 0.000 claims description 4
- 239000010931 gold Substances 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 229910052709 silver Inorganic materials 0.000 claims description 4
- 239000004332 silver Substances 0.000 claims description 4
- 239000002121 nanofiber Substances 0.000 abstract description 17
- 230000001112 coagulating effect Effects 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000877 morphologic effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
Images
Classifications
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/0007—Electro-spinning
- D01D5/0061—Electro-spinning characterised by the electro-spinning apparatus
- D01D5/0069—Electro-spinning characterised by the electro-spinning apparatus characterised by the spinning section, e.g. capillary tube, protrusion or pin
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/0007—Electro-spinning
- D01D5/0061—Electro-spinning characterised by the electro-spinning apparatus
- D01D5/0076—Electro-spinning characterised by the electro-spinning apparatus characterised by the collecting device, e.g. drum, wheel, endless belt, plate or grid
Definitions
- the invention relates to a controllable rotating electrospinning device, which belongs to the technical field of electrospinning.
- the purpose of the present invention is to provide a controllable rotating electrospinning device, which can improve the orientation and uniformity of the spun nanofibers while ensuring the spinning efficiency.
- a controllable rotating electrospinning device comprising:
- spinning spheres at least a portion of which is immersed in the spinning solution, and the spinning spheres are rotatable relative to the reservoir;
- a driving mechanism to drive the spinning sphere to rotate
- a receiving mechanism arranged on one side of the liquid storage tank
- a power supply mechanism electrically connected with the liquid storage battery to form an electrostatic field with the receiving mechanism
- the receiving mechanism is in an arc shape, and the center of the arc-shaped receiving mechanism is coincident or substantially coincident with the center of the spinning sphere.
- the arc-shaped receiving mechanism includes a first conductive metal piece and a second conductive metal piece, and the first conductive metal piece and the second conductive metal piece are arranged in parallel.
- the material of the first conductive metal piece and the second conductive metal piece is any one of copper, iron, silver and gold.
- volume of the spinning spheres disposed in the spinning solution is half or nearly half of the entire volume of the spinning spheres.
- the material of the spinning sphere is conductive metal.
- the drive mechanism is a drive motor.
- the driving mechanism is a lead screw and a transmission mechanism connected with the lead screw and used to convert the linear motion of the lead screw into rotational motion.
- the transmission mechanism is gear transmission.
- controllable rotating electrospinning device further includes a liquid supply mechanism for supplying liquid to the liquid storage tank, and the liquid supply mechanism is connected to the liquid storage tank through a liquid conduit.
- the material of the liquid storage tank is conductive metal.
- the beneficial effect of the present invention is that: by being provided with a spinning ball, the spinning ball rotates in the spinning solution under the driving of the driving mechanism, so that the spinning solution on the surface of the spinning ball exposed to the air is continuously replaced and updated, Prevent the spinning solution from coagulating in the air, and at the same time improve the dispersibility of the substance in the spinning solution and the uniformity of the solution; and, the receiving mechanism is arranged in an arc shape, and the center of the arc-shaped receiving mechanism and the center of the spinning sphere coincide or basically Coincidence to ensure that the distances from the surface of the spinning sphere to the arc-shaped receiving mechanism are equal, so that the jet can be drawn under the same conditions, thereby improving the uniformity of the diameter distribution of the nanofibers and the uniformity of the morphology and structure.
- FIG. 1 is a schematic structural diagram of the controllable rotating electrospinning device of the present application.
- FIG. 2 is a schematic diagram of part of the structure in FIG. 1
- a controllable rotating electrospinning device in a preferred embodiment of the present invention can effectively improve the orientation and uniformity of the spun nanofibers while ensuring the spinning efficiency ,Convenient.
- the controllable rotating electrospinning device includes a liquid storage tank 3 for placing the spinning solution, a spinning sphere 1 arranged in the liquid storage tank 3 , and a driving mechanism 2 for driving the spinning sphere 1 to rotate. , a receiving mechanism 6 arranged on one side of the liquid storage tank 3, and a power supply mechanism 5 that is electrically connected to the liquid storage tank 3 to form an electrostatic field with the receiving mechanism 6.
- the driving mechanism 2 When connected to the spinning ball 1 , the drive mechanism 2 is located outside the liquid reservoir 3 .
- the power supply mechanism 5 is a high-voltage power supply mechanism 5
- the receiving mechanism 6 is grounded 7, and an electrostatic field is formed between the receiving mechanism 6 and the liquid storage tank 3, so that the spinning solution is under the action of the electrostatic field. It is drawn into a jet and finally received on the receiving mechanism 6 .
- the material of the liquid storage tank 3 is a conductive metal
- the conductive metal can be any one of copper, iron, silver and gold, or other conductive metals. Please do not make specific limitations here, according to It depends on the actual situation.
- the power supply mechanism 5 can also be electrically connected to the driving mechanism 2.
- the materials of the driving mechanism 2 and the spinning ball 1 are both conductive metals, and the materials of the conductive metals are the same as those described above. I won't go into details here.
- the receiving mechanism 6 is arranged above the liquid storage tank 3 . Indeed, in other embodiments, the receiving mechanism 6 can also be arranged in other directions of the liquid storage tank 3, such as the left front, etc. In this case, a conductive metal needs to be added between the liquid storage tank 3 and the receiving mechanism 6.
- the ring is used to guide the stretching direction of the nanofibers, which is not specifically limited here and depends on the actual situation.
- the receiving mechanism 6 is in an arc shape, and the center of the arc-shaped receiving mechanism 6 coincides or substantially coincides with the center of the spinning sphere 1 .
- the purpose of this setting is to make the distances from the exposed spherical surface of the spinning sphere 1 to the receiving mechanism 6 to be equal or almost equal, so that the jet can be drawn under the same conditions as much as possible, thereby improving the uniformity of the distribution of the diameter of the nanofibers and morphological uniformity.
- the arc-shaped receiving mechanism 6 enlarges the receiving area, and can collect more nanofibers, thereby achieving the effect of reducing waste of resources.
- the arc-shaped receiving mechanism 6 includes a first conductive metal part and a second conductive metal part, the first conductive metal part and the second conductive metal part are arranged in parallel, and the first conductive metal part and the second conductive metal part are arranged in parallel.
- the material of the two conductive metal pieces is any one of copper, iron, silver and gold. That is, parallel electrodes are formed between the arc-shaped first conductive metal pieces and the second conductive metal pieces, which can greatly improve the orientation and uniformity of the spun nanofibers.
- the spinning sphere 1 is immersed in the spinning solution, and the spinning sphere 1 is rotatable relative to the liquid reservoir 3 .
- the volume of the spinning sphere 1 disposed in the spinning solution is half or nearly half of the entire volume of the spinning sphere 1 .
- the purpose of this setting is: at this time, the exposed effective spinning surface area of the spinning sphere 1 is the largest or close to the largest, so as to ensure the spinning efficiency. That is, in this case, the nanofibers that can be received on the receiving mechanism 6 are the most, and when the exposed volume of the spinning sphere 1 is greater than half of its overall volume, at this time, the spinning sphere 1 can be stained with the spinning sphere 1.
- the area of the spinning solution is also small, which reduces the spinning efficiency; and, even if the exposed area of the spinning sphere 1 can be stained with the spinning solution, the nanofibers near the spinning solution surface of the spinning sphere 1 will be Its gravity falls to the spinning solution surface, which will interfere with the subsequent spinning process, resulting in low spinning efficiency.
- the driving mechanism 2 can drive the spinning sphere 1 to rotate in the spinning solution, so that the spinning solution on the surface of the spinning sphere 1 exposed to the air is continuously replaced and updated, preventing the spinning solution from coagulating in the air, and at the same time improving the spinning solution. Dispersibility and solution homogeneity of the substance.
- the drive mechanism 2 is a drive motor, which can be a stepper motor, and the working parameters of the stepper motor can be set, thereby ensuring that the rotation speed of the spinning ball 1 is controllable.
- the drive mechanism 2 can also be a lead screw and a transmission mechanism connected with the lead screw and used to convert the linear motion of the lead screw into rotational motion.
- the structure of the lead screw and the gear transmission is a conventional structure, and the connection method is also in the prior art, so it will not be repeated here.
- the controllable rotating electrospinning device further includes a liquid supply mechanism 4 for supplying liquid to the liquid storage tank 3 , and the liquid supply mechanism 4 is connected to the liquid storage tank 3 through a liquid conduit.
- the spinning ball 1 rotates in the spinning solution under the drive of the driving mechanism 2, so that the spinning solution on the surface of the spinning ball 1 exposed to the air is continuously replaced Update, prevent the spinning solution from coagulating in the air, and at the same time improve the dispersibility and solution uniformity of the spinning solution; and, set the receiving mechanism 6 into an arc shape, the center of the arc-shaped receiving mechanism 6 and the spinning sphere 1
- the centers of the circles are coincident or substantially coincident, so as to ensure that the distances from the surface of the spinning sphere 1 to the arc-shaped receiving mechanism 6 are equal, so that the jet can be drawn under the same conditions, thereby improving the uniformity and morphology of the diameter distribution of the nanofibers. structural uniformity.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
- Nonwoven Fabrics (AREA)
Abstract
The present application relates to a controllable rotary electrostatic spinning device, comprising: a liquid storage tank used for containing a spinning solution; a spinning sphere, at least part of the spinning sphere being soaked in the spinning solution, and the spinning sphere being rotatable relative to the liquid storage tank; a driving mechanism, which drives the spinning sphere to rotate; a receiving mechanism arranged on one side of the liquid storage tank; and a power supply mechanism electrically connected to the liquid storage tank to form an electrostatic field together with the receiving mechanism, wherein the receiving mechanism is arc-shaped, and the circle center of the arc-shaped receiving mechanism coincides or basically coincides with the circle center of the spinning sphere, such that spinning efficiency is ensured, and the orientation and uniformity of a spun nanofiber can also be improved.
Description
本申请要求了申请日为2020年11月24日，申请号为202011328744.8的中国专利申请的优先权，其全部内容通过引用结合在本申请中。This application claims the priority of the Chinese patent application with an application date of November 24, 2020 and an application number of 202011328744.8, the entire contents of which are incorporated into this application by reference.
本发明涉及一种可控旋转静电纺丝装置，属于静电纺丝技术领域。The invention relates to a controllable rotating electrospinning device, which belongs to the technical field of electrospinning.
目前，静电纺丝技术因具有操作简便、适用范围广、生产效率相对较高等优点，且纺制出的纳米纤维具有纤维细，比表面积大，孔隙率高等特点，已成为研究的热点。但传统的静电纺丝设备纺丝效率低，限制了纳米纤维的批量生产，因此自由液面纺应运而生。自由液面静电纺丝作为新型的纺丝方法，其纺丝原理是利用高压电场所提供的静电力克服聚合物液面的表面张力，在聚合物液面形成泰勒锥，并进一步形成射流，射流在电场力的作用下被拉细成纳米纤维。然而普通自由液面纺丝虽然能实现批量制备纳米纤维，但也存在射流不稳定，溶液容易凝固，纺丝不均匀，取向性差，以及容易产生资源浪费等缺陷。并且传统的接收装置(如金属网、铝箔等)等接收的纤维均匀性、取向性较差，极大地限制了静电纺纳米纤维在生物医学、增强材料、导电材料等领域的应用。At present, electrospinning technology has become a research hotspot because of its advantages of simple operation, wide application range and relatively high production efficiency, and the spun nanofibers have the characteristics of thin fibers, large specific surface area and high porosity. However, the traditional electrospinning equipment has low spinning efficiency, which limits the mass production of nanofibers, so free surface spinning emerges as the times require. Free liquid surface electrospinning is a new type of spinning method. The spinning principle is to use the electrostatic force provided by the high-voltage electric field to overcome the surface tension of the polymer liquid surface, form a Taylor cone on the polymer liquid surface, and further form a jet, The jet is attenuated into nanofibers under the action of the electric field force. However, although ordinary free liquid surface spinning can realize batch preparation of nanofibers, it also has some defects such as unstable jet flow, easy coagulation of solution, uneven spinning, poor orientation, and easy waste of resources. Moreover, the fibers received by traditional receiving devices (such as metal mesh, aluminum foil, etc.) have poor uniformity and orientation, which greatly limits the application of electrospun nanofibers in the fields of biomedicine, reinforcing materials, and conductive materials.
发明内容SUMMARY OF THE INVENTION
本发明的目的在于提供一种可控旋转静电纺丝装置，其在保证纺丝效率的同时，可提高所纺纳米纤维的取向性和均匀性。The purpose of the present invention is to provide a controllable rotating electrospinning device, which can improve the orientation and uniformity of the spun nanofibers while ensuring the spinning efficiency.
为达到上述目的，本发明提供如下技术方案：一种可控旋转静电纺丝装置，包括：In order to achieve the above purpose, the present invention provides the following technical solutions: a controllable rotating electrospinning device, comprising:
储液池，用以放置纺丝溶液；A reservoir for placing the spinning solution;
纺丝球体，至少部分所述纺丝球体浸润在所述纺丝溶液内，且所述纺丝球体可相对于所述储液池旋转；spinning spheres, at least a portion of which is immersed in the spinning solution, and the spinning spheres are rotatable relative to the reservoir;
驱动机构，驱动所述纺丝球体旋转；a driving mechanism to drive the spinning sphere to rotate;
接收机构，设置在所述储液池的一侧；a receiving mechanism, arranged on one side of the liquid storage tank;
供电机构，与所述储液池电性连接以与所述接收机构形成静电场；a power supply mechanism, electrically connected with the liquid storage battery to form an electrostatic field with the receiving mechanism;
其中，所述接收机构呈弧形状，且弧形状的所述接收机构的圆心与所述纺丝球体的圆心重合或基本重合。Wherein, the receiving mechanism is in an arc shape, and the center of the arc-shaped receiving mechanism is coincident or substantially coincident with the center of the spinning sphere.
进一步地，弧形状的所述接收机构包括第一导电金属件和第二导电金属件，所述第一导电金属件和所述第二导电金属件平行设置。Further, the arc-shaped receiving mechanism includes a first conductive metal piece and a second conductive metal piece, and the first conductive metal piece and the second conductive metal piece are arranged in parallel.
进一步地，所述第一导电金属件和所述第二导电金属件的材料为铜、铁、银及金中的任一种。Further, the material of the first conductive metal piece and the second conductive metal piece is any one of copper, iron, silver and gold.
进一步地，所述纺丝球体设置在所述纺丝溶液中的体积为所述纺丝球体整体体积的一半或接近于一半。Further, the volume of the spinning spheres disposed in the spinning solution is half or nearly half of the entire volume of the spinning spheres.
进一步地，所述纺丝球体的材料为导电金属。Further, the material of the spinning sphere is conductive metal.
进一步地，所述驱动机构为驱动电机。Further, the drive mechanism is a drive motor.
进一步地，所述驱动机构为丝杠、及与所述丝杠连接且用以将所述丝杠的直线运动转换为旋转运动的传动机构。Further, the driving mechanism is a lead screw and a transmission mechanism connected with the lead screw and used to convert the linear motion of the lead screw into rotational motion.
进一步地，所述传动机构为齿轮传动。Further, the transmission mechanism is gear transmission.
进一步地，所述可控旋转静电纺丝装置还包括用以为所述储液池供液的供液机构，所述供液机构通过导液管与所述储液池连接。Further, the controllable rotating electrospinning device further includes a liquid supply mechanism for supplying liquid to the liquid storage tank, and the liquid supply mechanism is connected to the liquid storage tank through a liquid conduit.
进一步地，所述储液池的材料为导电金属。Further, the material of the liquid storage tank is conductive metal.
本发明的有益效果在于：通过设置有纺丝球体，纺丝球体在驱动机构的驱动下在纺丝溶液中旋转，进而使得纺丝球体暴露在空气中的表面上的纺丝溶液不断替换更新，防止纺丝溶液在空气中凝固，同时提高纺丝溶液中物质的分散性和溶液均匀性；并且，将接收机构设置成弧形状，弧形状的接收机构的圆心和纺丝球体的圆心重合或基本重合，以保证纺丝球体的表面至弧形状的接收机构的各处距离相等，使得射流能够受到相同条件的牵伸，从而提高纳米纤维的直径分布均匀性和形貌结构的均一性。The beneficial effect of the present invention is that: by being provided with a spinning ball, the spinning ball rotates in the spinning solution under the driving of the driving mechanism, so that the spinning solution on the surface of the spinning ball exposed to the air is continuously replaced and updated, Prevent the spinning solution from coagulating in the air, and at the same time improve the dispersibility of the substance in the spinning solution and the uniformity of the solution; and, the receiving mechanism is arranged in an arc shape, and the center of the arc-shaped receiving mechanism and the center of the spinning sphere coincide or basically Coincidence to ensure that the distances from the surface of the spinning sphere to the arc-shaped receiving mechanism are equal, so that the jet can be drawn under the same conditions, thereby improving the uniformity of the diameter distribution of the nanofibers and the uniformity of the morphology and structure.
上述说明仅是本发明技术方案的概述，为了能够更清楚了解本发明的技术手段，并可依照说明书的内容予以实施，以下以本发明的较佳实施例并配合附图详细说明如后。The above description is only an overview of the technical solution of the present invention. In order to understand the technical means of the present invention more clearly and implement it according to the content of the description, the following detailed description is given with the preferred embodiments of the present invention and the accompanying drawings.
图1为本申请的可控旋转静电纺丝装置的结构示意图。FIG. 1 is a schematic structural diagram of the controllable rotating electrospinning device of the present application.
图2为图1中的部分结构示意图FIG. 2 is a schematic diagram of part of the structure in FIG. 1
下面结合附图和实施例，对本发明的具体实施方式作进一步详细描述。以下实施例用于说明本发明，但不用来限制本发明的范围。The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and embodiments. The following examples are intended to illustrate the present invention, but not to limit the scope of the present invention.
请参见图1及图2，本发明的一较佳实施例中的一种可控旋转静电纺丝装置，其能够在保证纺丝效率的同时，有效提高所纺纳米纤维的取向性和均匀性，方便快捷。具体的，可控旋转静电纺丝装置包括用以放置纺丝溶液的储液池3、设置在所述储液池3内的纺丝球体1、驱动所述纺丝球体1旋转的驱动机构2、设置在所述储液池3一侧的接收机构6、及与所述储液池3电性连接以与所述接收机构6形成静电场的供电机构5，值得注意的是，驱动机构2与纺丝球体1连接时，驱动机构2位于储液池3的外侧。在本实施例中，所述供电机构5为高压供电机构5，所述接收机构6接地7，进而与所述储液池3之间形成静电场，以使得纺丝溶液在静电场的作用下被拉伸成射流，最终被接收在所述接收机构6上。相应的，所述储液池3的材料为导电金属，该导电金属可以为铜、铁、银及金中的任一种，亦可以为其他导电金属，本身请在此不做具体限定，根据实际情况而定。诚然，在其他实施例中红，所述供电机构5也可与驱动机构2电性连接，此时，驱动机构2和纺丝球体1的材料皆为导电金属，该导电金属的材料同上述，在此不做赘述。Please refer to FIG. 1 and FIG. 2 , a controllable rotating electrospinning device in a preferred embodiment of the present invention can effectively improve the orientation and uniformity of the spun nanofibers while ensuring the spinning efficiency ,Convenient. Specifically, the controllable rotating electrospinning device includes a liquid storage tank 3 for placing the spinning solution, a spinning sphere 1 arranged in the liquid storage tank 3 , and a driving mechanism 2 for driving the spinning sphere 1 to rotate. , a receiving mechanism 6 arranged on one side of the liquid storage tank 3, and a power supply mechanism 5 that is electrically connected to the liquid storage tank 3 to form an electrostatic field with the receiving mechanism 6. It is worth noting that the driving mechanism 2 When connected to the spinning ball 1 , the drive mechanism 2 is located outside the liquid reservoir 3 . In this embodiment, the power supply mechanism 5 is a high-voltage power supply mechanism 5, the receiving mechanism 6 is grounded 7, and an electrostatic field is formed between the receiving mechanism 6 and the liquid storage tank 3, so that the spinning solution is under the action of the electrostatic field. It is drawn into a jet and finally received on the receiving mechanism 6 . Correspondingly, the material of the liquid storage tank 3 is a conductive metal, and the conductive metal can be any one of copper, iron, silver and gold, or other conductive metals. Please do not make specific limitations here, according to It depends on the actual situation. It is true that in other embodiments, the power supply mechanism 5 can also be electrically connected to the driving mechanism 2. At this time, the materials of the driving mechanism 2 and the spinning ball 1 are both conductive metals, and the materials of the conductive metals are the same as those described above. I won't go into details here.
为了保证最终成型的纳米纤维的有序性及均匀性，在本实施例中，所述接收机构6设置在所述储液池3的上方。诚然，在其他实施例中，所述接收机构6也可设置在所述储液池3的其他方向，例如左前方等，此时，需要在储液池3和接收机构6之间增加导电金属环，以导向纳米纤维的拉伸方向，在此不做具体限定们根据实际情况而定。其中，所述接收机构6呈弧形状，且弧形状的所述接收机构6的圆心与所述纺丝球体1的圆心重合或基本重合。这样设置的目的在于：使得纺丝球体1暴露在外的球面至接收机构6各处的距离相等或几乎 相等，从而使得射流尽可能受到相同条件的牵伸，从而提高纳米纤维的直径的分布均匀性和形貌结构均一性。同时，弧形状的接收机构6扩大了接收面积，能够收集到更多的纳米纤维，达到减少浪费资源的效果。In order to ensure the order and uniformity of the finally formed nanofibers, in this embodiment, the receiving mechanism 6 is arranged above the liquid storage tank 3 . Indeed, in other embodiments, the receiving mechanism 6 can also be arranged in other directions of the liquid storage tank 3, such as the left front, etc. In this case, a conductive metal needs to be added between the liquid storage tank 3 and the receiving mechanism 6. The ring is used to guide the stretching direction of the nanofibers, which is not specifically limited here and depends on the actual situation. The receiving mechanism 6 is in an arc shape, and the center of the arc-shaped receiving mechanism 6 coincides or substantially coincides with the center of the spinning sphere 1 . The purpose of this setting is to make the distances from the exposed spherical surface of the spinning sphere 1 to the receiving mechanism 6 to be equal or almost equal, so that the jet can be drawn under the same conditions as much as possible, thereby improving the uniformity of the distribution of the diameter of the nanofibers and morphological uniformity. At the same time, the arc-shaped receiving mechanism 6 enlarges the receiving area, and can collect more nanofibers, thereby achieving the effect of reducing waste of resources.
弧形状的所述接收机构6包括第一导电金属件和第二导电金属件，所述第一导电金属件和所述第二导电金属件平行设置，所述第一导电金属件和所述第二导电金属件的材料为铜、铁、银及金中的任一种。即，弧形状的第一导电金属件和第二导电金属件之间形成了平行电极，其可极大提高所纺纳米纤维的取向性和均匀性。The arc-shaped receiving mechanism 6 includes a first conductive metal part and a second conductive metal part, the first conductive metal part and the second conductive metal part are arranged in parallel, and the first conductive metal part and the second conductive metal part are arranged in parallel. The material of the two conductive metal pieces is any one of copper, iron, silver and gold. That is, parallel electrodes are formed between the arc-shaped first conductive metal pieces and the second conductive metal pieces, which can greatly improve the orientation and uniformity of the spun nanofibers.
至少部分所述纺丝球体1浸润在所述纺丝溶液内，且所述纺丝球体1可相对于所述储液池3旋转。其中，所述纺丝球体1设置在所述纺丝溶液中的体积为所述纺丝球体1整体体积的一半或接近于一半。这样设置的目的在于：此时，纺丝球体1暴露在外的有效纺丝表面积最大或接近于最大，从而保证纺丝效率。即，在此情况下，能够被接收在所述接收机构6上的纳米纤维最多，当纺丝球体1暴露在外的体积大于其整体体积的一半时，此时，纺丝球体1能够沾染到纺丝溶液的面积也较小，从而降低了纺丝效率；并且，即使纺丝球体1暴露在外的面积上都可以沾染上纺丝溶液，纺丝球体1靠近纺丝液面处的纳米纤维会在其重力作用下落到纺丝液面上，会对后续的纺丝过程造成干扰，造成纺丝效率低下。At least part of the spinning sphere 1 is immersed in the spinning solution, and the spinning sphere 1 is rotatable relative to the liquid reservoir 3 . Wherein, the volume of the spinning sphere 1 disposed in the spinning solution is half or nearly half of the entire volume of the spinning sphere 1 . The purpose of this setting is: at this time, the exposed effective spinning surface area of the spinning sphere 1 is the largest or close to the largest, so as to ensure the spinning efficiency. That is, in this case, the nanofibers that can be received on the receiving mechanism 6 are the most, and when the exposed volume of the spinning sphere 1 is greater than half of its overall volume, at this time, the spinning sphere 1 can be stained with the spinning sphere 1. The area of the spinning solution is also small, which reduces the spinning efficiency; and, even if the exposed area of the spinning sphere 1 can be stained with the spinning solution, the nanofibers near the spinning solution surface of the spinning sphere 1 will be Its gravity falls to the spinning solution surface, which will interfere with the subsequent spinning process, resulting in low spinning efficiency.
驱动机构2可驱动纺丝球体1在纺丝溶液中旋转，使得纺丝球体1暴露在空气中的表面上的纺丝溶液不断替换更新，防止纺丝溶液在空气中凝固，同时提高纺丝溶液中物质的分散性和溶液均匀性。在本实施例中，所述驱动机构2为驱动电机，该驱动电机可为步进电机，可设置步进电机的工作参数，进而保证纺丝球体1的旋转速度可控。诚然，在其他实施例中，所述驱动机构2也可为丝杠、及与所述丝杠连接且用以将所述丝杠的直线运动转换为旋转运动的传动机构，该所述传动机构为齿轮传动，丝杠与齿轮传动的结构为常规结构，且连接方式也是现有技术，故在此不做赘述。The driving mechanism 2 can drive the spinning sphere 1 to rotate in the spinning solution, so that the spinning solution on the surface of the spinning sphere 1 exposed to the air is continuously replaced and updated, preventing the spinning solution from coagulating in the air, and at the same time improving the spinning solution. Dispersibility and solution homogeneity of the substance. In this embodiment, the drive mechanism 2 is a drive motor, which can be a stepper motor, and the working parameters of the stepper motor can be set, thereby ensuring that the rotation speed of the spinning ball 1 is controllable. Certainly, in other embodiments, the drive mechanism 2 can also be a lead screw and a transmission mechanism connected with the lead screw and used to convert the linear motion of the lead screw into rotational motion. For gear transmission, the structure of the lead screw and the gear transmission is a conventional structure, and the connection method is also in the prior art, so it will not be repeated here.
所述可控旋转静电纺丝装置还包括用以为所述储液池3供液的供液机构4， 所述供液机构4通过导液管与所述储液池3连接。The controllable rotating electrospinning device further includes a liquid supply mechanism 4 for supplying liquid to the liquid storage tank 3 , and the liquid supply mechanism 4 is connected to the liquid storage tank 3 through a liquid conduit.
综上所述：通过设置有纺丝球体1，纺丝球体1在驱动机构2的驱动下在纺丝溶液中旋转，进而使得纺丝球体1暴露在空气中的表面上的纺丝溶液不断替换更新，防止纺丝溶液在空气中凝固，同时提高纺丝溶液中物质的分散性和溶液均匀性；并且，将接收机构6设置成弧形状，弧形状的接收机构6的圆心和纺丝球体1的圆心重合或基本重合，以保证纺丝球体1的表面至弧形状的接收机构6的各处距离相等，使得射流能够受到相同条件的牵伸，从而提高纳米纤维的直径分布均匀性和形貌结构的均一性。To sum up: by providing the spinning ball 1, the spinning ball 1 rotates in the spinning solution under the drive of the driving mechanism 2, so that the spinning solution on the surface of the spinning ball 1 exposed to the air is continuously replaced Update, prevent the spinning solution from coagulating in the air, and at the same time improve the dispersibility and solution uniformity of the spinning solution; and, set the receiving mechanism 6 into an arc shape, the center of the arc-shaped receiving mechanism 6 and the spinning sphere 1 The centers of the circles are coincident or substantially coincident, so as to ensure that the distances from the surface of the spinning sphere 1 to the arc-shaped receiving mechanism 6 are equal, so that the jet can be drawn under the same conditions, thereby improving the uniformity and morphology of the diameter distribution of the nanofibers. structural uniformity.
以上所述实施例的各技术特征可以进行任意的组合，为使描述简洁，未对上述实施例中的各个技术特征所有可能的组合都进行描述，然而，只要这些技术特征的组合不存在矛盾，都应当认为是本说明书记载的范围。The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity, all possible combinations of the technical features in the above-described embodiments are not described. However, as long as there is no contradiction between the combinations of these technical features, All should be regarded as the scope described in this specification.
以上所述实施例仅表达了本发明的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对发明专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本发明构思的前提下，还可以做出若干变形和改进，这些都属于本发明的保护范围。因此，本发明专利的保护范围应以所附权利要求为准。The above-mentioned embodiments only represent several embodiments of the present invention, and the descriptions thereof are more specific and detailed, but should not be construed as a limitation on the scope of the invention patent. It should be pointed out that for those skilled in the art, without departing from the concept of the present invention, several modifications and improvements can be made, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention should be subject to the appended claims.
Claims (10)
- 一种可控旋转静电纺丝装置，其特征在于，包括：A controllable rotating electrospinning device, characterized in that it includes:储液池，用以放置纺丝溶液；A reservoir for placing the spinning solution;纺丝球体，至少部分所述纺丝球体浸润在所述纺丝溶液内，且所述纺丝球体可相对于所述储液池旋转；spinning spheres, at least a portion of which is immersed in the spinning solution, and the spinning spheres are rotatable relative to the reservoir;驱动机构，驱动所述纺丝球体旋转；a driving mechanism to drive the spinning sphere to rotate;接收机构，设置在所述储液池的一侧；a receiving mechanism, arranged on one side of the liquid storage tank;供电机构，与所述储液池电性连接以与所述接收机构形成静电场；a power supply mechanism, electrically connected with the liquid storage battery to form an electrostatic field with the receiving mechanism;其中，所述接收机构呈弧形状，且弧形状的所述接收机构的圆心与所述纺丝球体的圆心重合或基本重合。Wherein, the receiving mechanism is in an arc shape, and the center of the arc-shaped receiving mechanism is coincident or substantially coincident with the center of the spinning sphere.
- 如权利要求1所述的可控旋转静电纺丝装置，其特征在于，弧形状的所述接收机构包括第一导电金属件和第二导电金属件，所述第一导电金属件和所述第二导电金属件平行设置。The controllable rotation electrospinning device of claim 1, wherein the arc-shaped receiving mechanism comprises a first conductive metal piece and a second conductive metal piece, the first conductive metal piece and the first conductive metal piece The two conductive metal pieces are arranged in parallel.
- 如权利要求2所述的可控旋转静电纺丝装置，其特征在于，所述第一导电金属件和所述第二导电金属件的材料为铜、铁、银及金中的任一种。The controllable rotation electrospinning device according to claim 2, wherein the material of the first conductive metal part and the second conductive metal part is any one of copper, iron, silver and gold.
- 如权利要求1所述的可控旋转静电纺丝装置，其特征在于，所述纺丝球体设置在所述纺丝溶液中的体积为所述纺丝球体整体体积的一半或接近于一半。The controllable rotation electrospinning device according to claim 1, wherein the volume of the spinning spheres disposed in the spinning solution is half or nearly half of the entire volume of the spinning spheres.
- 如权利要求1所述的可控旋转静电纺丝装置，其特征在于，所述纺丝球体的材料为导电金属。The controllable rotating electrospinning device according to claim 1, wherein the material of the spinning sphere is a conductive metal.
- 如权利要求1所述的可控旋转静电纺丝装置，其特征在于，所述驱动机构为驱动电机。The controllable rotation electrospinning device according to claim 1, wherein the driving mechanism is a driving motor.
- 如权利要求1所述的可控旋转静电纺丝装置，其特征在于，所述驱动机构为丝杠、及与所述丝杠连接且用以将所述丝杠的直线运动转换为旋转运动的传动机构。The controllable rotating electrospinning device according to claim 1, wherein the driving mechanism is a lead screw and a screw connected to the lead screw and used to convert linear motion of the lead screw into rotational motion transmission mechanism.
- 如权利要求7所述的可控旋转静电纺丝装置，其特征在于，所述传动机构为齿轮传动。The controllable rotation electrospinning device according to claim 7, wherein the transmission mechanism is a gear transmission.
- 如权利要求1所述的可控旋转静电纺丝装置，其特征在于，所述可控旋转静电纺丝装置还包括用以为所述储液池供液的供液机构，所述供液机构通过 导液管与所述储液池连接。The controllable rotating electrospinning device according to claim 1, wherein the controllable rotating electrospinning device further comprises a liquid supply mechanism for supplying liquid to the liquid storage tank, the liquid supply mechanism passing through A catheter is connected to the reservoir.
- 如权利要求1所述的可控旋转静电纺丝装置，其特征在于，所述储液池的材料为导电金属。The controllable rotating electrospinning device according to claim 1, wherein the material of the liquid storage tank is a conductive metal.
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