WO2018199354A1 - Spinning apparatus for producing two-ingredient composite nanofibers, and method for producing two-ingredient composite nanofibers using same - Google Patents

Abstract

The spinning apparatus for producing two-ingredient composite nanofibers, according to the present invention, comprises: (i) a spinning tube (T) which comprises a spinning tube body (Ta) having a cylindrical or conical shape and a polygonal tubular hollow part (Tb) formed, along the length direction of the spinning tube body (Ta), inside the spinning tube body (Ta) and has a structure in which the vertex areas of the polygonal tubular hollow part (Tb) are in contact with the outer circumferential surface of the spinning tube body (Ta); and (ii) a spinning solution distribution tube (1) which is connected to the spinning tube (T), comprises a spinning solution distribution tube body (1a) having a cylindrical or conical shape, a polygonal tubular hollow part (1b) formed, along the length direction of the spinning solution distribution tube body (1a), inside the spinning solution distribution tube body (1a), and nozzles (1c) installed, along the length direction of the spinning solution distribution tube body (1a), in the respective vertex areas of the polygonal tubular hollow part (1b), and has a structure in which the vertex areas of the polygonal tubular hollow part (1b) are in contact with the outer circumferential surface of the spinning solution distribution tube body (1a). The present invention uses an electrostatic force and a centrifugal force at the same time, thus can produce two-ingredient composite nanofibers with high productivity (discharge volume), facilitates solvent volatilization and recovery, effectively prevents a (drop) phenomenon in which a spinning solution drops onto a collector in a solution state, not a fibrous state, and thereby improves the quality of a two-ingredient composite nanofiber web.

Description

Spinning apparatus for producing two-component composite nanofibers, and a method for manufacturing two-component composite nanofibers using the same

The present invention relates to a spinning device for producing two-component composite nanofibers and a method of manufacturing a two-component composite nanofibers using the same. More specifically, the present invention can produce a high quality two-component composite nanofiber web with high productivity per unit time and processability. The present invention relates to a spinning tube, and also to a method for producing a high quality two-component composite nanofiber web using the spinning tube.

The term "bicomponent composite nanofiber" of the present invention is used to mean both core-sheath composite nanofibers and side-by-side composite nanofibers, and the "core-sheath composite nanofibers" The term is used with the meaning including eccentric core-cis type composite nanofibers.

As a conventional technique for producing core-sheath composite nanofibers, a method of electrospinning the sheath-forming spinning solution and the core-forming spinning solution through a sheath / core type (double tube type) nozzle with only electrostatic force has been widely used.

However, in the conventional method, since the electrospinning is performed only depending on the electrostatic force, the discharge amount per nozzle unit hole per unit time is very low at the level of 0.01 g, which leads to difficulty in mass production.

In general, the production of nanofibers through electrospinning is 0.1 ~ 1 g per hour and the solution discharge is very low, 1.0 ~ 5.0 mL per hour [D. H. H. Renecker et al., Nanotechnology 2006, VOl 17, 1123].

Specifically, Nano Letters, 2007, Vol7 (4) 1081, as another conventional technique, is a SnO ₂ in one nozzle having an internal diameter of 0.4 mm among the composite nozzles in which two nozzles are arranged side by side. Feed the precursor solution and TiO ₂ to the remaining nozzles with an internal diameter of 0.7 mm A method of manufacturing TiO ₂ / SnO ₂ composite inorganic nanofibers in a side-by-side form by electrospinning after supplying a precursor solution is disclosed. However, since the conventional method depends only on electrostatic force, the discharge amount per nozzle per unit time This very low productivity is low, there was a problem that the nozzle replacement and cleaning is difficult.

Polymer, 2003, Vol. 44, 6353 uses a teflon needle with an internal diameter of 0.7 mm and a thickness of 0.2 mm, which is used to simultaneously pump two solutions with a cylinder pump so that the two solutions merge at the needle section. Although a method of producing a composite side-side composite nanofiber by electrospinning by supplying a platinum electrode in a solution is disclosed. However, since the conventional method also depends only on electrostatic force, the discharge amount per nozzle per unit time is very low, resulting in high productivity. Falling, there was a problem that the nozzle replacement and cleaning is difficult.

In addition, in the conventional methods, a phenomenon in which the spinning solution falls on the collector in a solution state that is not fibrous (hereinafter, referred to as a "droplet phenomenon") is severely generated, thereby degrading the quality of the two-component composite nanofiber web.

The present invention can minimize the work risk due to high voltage application, can greatly improve the productivity of the two-component composite nanofibers, and prevent the droplet phenomenon when manufacturing nanofibers to improve the quality of the two-component composite nanofiber web It is to provide a spinning device for producing a two-component composite nanofibers that can be improved.

Another object of the present invention is to provide a method for producing a high quality two-component composite nanofibers with high productivity using the spinning tube for producing a two-component composite nanofibers.

In order to achieve the above object, in the present invention, the spinning device for producing a two-component composite nanofiber is (i) a spinning tube main body (Ta) having one form selected from a cylindrical shape and a conical shape; Consists of a polygonal tube-shaped hollow portion (Tb) formed along the longitudinal direction of the spinning tube body (Ta), the corner portions of the polygonal tube-shaped hollow portion (Tb) and the outer peripheral surface of the spinning tube body (Ta) Spinning tube (T) having a contacting structure and (ii) Spinning liquid distribution tube body (1a) connected to the spinning tube (T), and having a shape selected from cylindrical and conical, the spinning liquid distribution The spinning on each of the corners of the polygonal tube-like hollow portion 1b and the polygonal tube-like hollow portion 1b formed in the tube body 1a along the longitudinal direction of the spinning solution distribution tube body 1a. Consists of a nozzle (1c) is provided along the longitudinal direction of the distribution tube body (1a), the corner portion of the polygonal tube-like hollow portion (1b) is in contact with the outer peripheral surface of the spinning liquid distribution tube body (1a) Consists of a spinning solution distribution tube (1) having a.

In addition, the present invention (i) by rotating the spinning tube (T) and the spinning liquid distribution tube (1) a high voltage to the spinning tube (T) and the spinning liquid distribution tube (1) with a voltage generator (6) And (ii) the first spinning solution is supplied into the nozzle 1c constituting the spinning solution distribution tube 1, and at the same time into the polygonal tubular hollow part 1b constituting the spinning solution distribution tube 1. After supplying a second spinning solution different from the first spinning solution, (iii) the first spinning solution supplied into the nozzle 1c of the spinning liquid distribution tube and the polygonal tubular hollow portion 1b of the spinning liquid distribution tube. The second spinning solution to the collector 2 in which the high voltage is applied by the voltage generator 6 through the corner of the polygonal tube-shaped hollow part Tb forming the spinning tube T by using centrifugal force and electric force. Spinning produces bicomponent composite nanofibers.

In the present invention, since the electrostatic force and centrifugal force are used simultaneously, the bicomponent composite nanofibers can be manufactured with high productivity (discharge amount), solvent volatilization and recovery are easy, and the spinning solution falls on the collector in a solution state instead of fibrous. It also effectively prevents (drop phenomenon) to improve the quality of the two-component composite nanofiber web.

1 is a process schematic diagram of producing a bicomponent composite nanofiber according to the present invention.

Figure 2 is a schematic diagram showing the mechanism by which the core-sheath bicomponent composite nanofibers are formed in the spinning tube (T) for producing a bicomponent composite nanofiber of the present invention.

3 to 4 are schematic views showing a state in which a nozzle 1c is formed at a corner portion of a polygonal tube-shaped hollow 1b formed in the spinning solution distribution tube 1 of the present invention.

5 is a scanning electron microscope photograph of the bicomponent composite nanofibers prepared in Example 1. FIG.

Figure 6 is a scanning electron microscope photograph of the hollow carbon nanofibers prepared in Example 2.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

Spinning apparatus for producing a two-component composite nanofiber according to the present invention, as shown in Figure 1 (i) a spin tube body (Ta) having one form selected from cylindrical and conical shape and the inside of the spin tube body (Ta) Consists of a polygonal tube-shaped hollow portion (Tb) formed along the longitudinal direction of the radiating tube body (Ta), the corners of the polygonal tube-shaped hollow portion (Tb) and the outer peripheral surface of the radiating tube body (Ta) Spinning tube (T) having a structure in contact with; And (ii) a spinning liquid distribution tube body (1a) connected to the spinning tube (T) and having one of a cylindrical shape and a conical shape, and the spinning liquid inside the spinning liquid distribution tube body (1a). A longitudinal direction of the spinning liquid distribution tube body 1a is formed in each of the corner portions of the polygonal tube-shaped hollow part 1b and the polygonal tube-shaped hollow part 1b formed along the longitudinal direction of the distribution tube main body 1a. Spinning liquid dispensing tube (1) comprising a nozzle (1c) is provided along the side, the edge portion of the polygonal tube-like hollow portion (1b) is in contact with the outer peripheral surface of the spinning liquid dispensing tube body (1a) It includes;

One or two or more nozzles 1c are provided along the longitudinal direction of the main body 1a of the spinning tube at each corner portion of the polygonal tubular hollow portion 1b constituting the spinning liquid distribution tube 1.

The spinning tube (T) and the spinning liquid distribution tube (1) may be integrally manufactured and formed from the beginning, or may be separately manufactured and then connected to each other by assembling.

Next, looking at the manufacturing method of the two-component composite nanofiber according to the present invention, as shown in Figure 1 (i) a voltage generator while rotating the spinning tube (T) and the spinning solution distribution tube (1) (6) applying a high voltage to the spinning tube (T) and the spinning liquid distribution tube (1), and (ii) supplying a first spinning solution into the nozzle (1c) forming the spinning liquid distribution tube (1); At the same time, a second spinning solution different from the first spinning solution is supplied into the polygonal tubular hollow portion 1b constituting the spinning liquid distribution tube 1, and then (iii) into the nozzle 1c of the spinning liquid distribution tube. Of the polygonal tubular hollow portion (Tb) forming the spinning tube (T) using the centrifugal force and the electric force to the second spinning solution supplied into the polygonal tubular hollow portion (1b) of the first spinning solution and the spinning liquid dispensing tube Radiates toward the collector 2 where the high voltage is applied by the voltage generator 6 through the portion. F 2 to produce the component composite nanofiber.

At this time, the first spinning solution is supplied into the nozzle 1c using the first spinning solution supply pipe 3a, and the second spinning solution is supplied into the polygonal tubular hollow portion 1b using the second spinning solution supply pipe 3b. To supply.

2 is a first spinning solution (A: spinning solution for forming a core) and a second spinning solution (B: sheath-forming) supplied to the corner portion Tb 'of the polygonal tubular hollow portion Tb constituting the spinning tube. This is a schematic diagram showing the flow state of the spinning solution) and the mechanism by which the core-cis type bicomponent composite nanofibers are formed.

As shown in FIG. 2, the first spinning solution (A: spinning solution for forming a core) has a polygonal tube-shaped hollow part constituting the spinning tube through a nozzle 1c having a relatively small diameter constituting the spinning liquid distribution tube. Since it is supplied to the part Tb ', it is supplied to the corner part Tb' of the polygonal tube-shaped hollow part which comprises a spinning tube through the polygonal tube-shaped hollow part 1b of a relatively large diameter spinning liquid distribution tube. The solution flow is relatively faster than the two spinning solution (B: cis forming spinning solution) to maintain the core shape throughout the length of the corner portion (Tb '), and to maintain the core shape of the first spinning solution (A: core formation The spinning solution is wrapped around the second spinning solution (B: spinning solution for forming the sheath) to maintain the core-sheath shape over the entire length of the corner portion Tb 'of the polygonal tubular hollow part constituting the spinning tube. , Prize In the corner portion (Tb ') the top end of the core-sheath type bicomponent composite nanofibers is formed.

The manufacturing mechanism of the core-sheath bicomponent composite nanofiber according to the present invention described above is completely different from the mechanism for producing the core-sheath bicomponent composite nanofiber by arranging two nozzles in a core-sheath form. .

In the present invention, since two-component composite nanofibers are simultaneously manufactured in a plurality of corner portions (Tb '), productivity is greatly improved as compared with the conventional nozzle type method, and various shapes can be changed by changing the shape of the spinning liquid distribution tube (1). The two-component composite nanofibers can be prepared.

The two-component composite nanofibers are core-sheath type composite nanofibers or side by side type composite nanofibers, and the core-sheath composite fiber is an eccentric core-sheath type. It may be a composite nanofiber.

In one embodiment, a core forming spinning solution (first spinning solution) is supplied into the nozzle 1c constituting the spinning solution distribution tube 1, and a sheath forming spinning solution is provided into the polygonal tubular hollow part 1b. (Second spinning solution) was supplied to produce a core-cis type composite nanofiber.

At this time, as shown in Figure 4 using the spinning tube (1) provided with three nozzles (1c) in each corner portion of the polygonal tubular hollow portion (1b) constituting the spinning liquid distribution tube (1) core component These three core-sheath composite nanofibers can be produced.

As another embodiment, when the distance (d) between the corner vertex of the polygonal tubular hollow portion (1b) constituting the spinning liquid distribution tube (1) and the nozzle (1c) is properly adjusted, the side-by-side composite nanofibers It can be prepared.

As an embodiment, one of two different polymer solutions is used as the first spinning solution supplied into the nozzle 1c constituting the spinning liquid distribution tube 1, and the remaining one is used as the spinning liquid distribution tube 1. The core-sheath composite nanofibers or side-by-side composite nanofibers are manufactured using the second spinning solution supplied into the polygonal tubular hollow part 1b constituting the core.

A hollow fiber is prepared by dissolving the core of the core-sheath composite nanofiber prepared as described above with an organic solvent or the like.

As another embodiment, one of two precursor solutions containing different inorganic materials is used as the first spinning solution supplied into the nozzle 1c constituting the spinning liquid distribution tube 1, and the other one is used. A bicomponent composite inorganic nanofiber is produced by using the second solution supplied into the polygonal tubular hollow portion 1b constituting the spinning solution distribution tube 1.

When the two-component composite inorganic nanofibers prepared as described above are stabilized and carbonized, a single-component or two-component inorganic nanofiber is manufactured.

As another embodiment, the polymer solution is used as the first spinning solution supplied into the nozzle 1c constituting the spinning liquid distribution tube 1, and the precursor solution containing the inorganic material is used as the spinning liquid distribution tube 1. A core-sheath composite nanofiber is prepared in which the core component is a polymer and the sheath component is made of an inorganic material, using the second spinning solution supplied into the polygonal tubular hollow portion 1b.

When the core component of the core-sheath composite nanofibers prepared as described above is dissolved in an organic solvent or removed by carbonization, an inorganic hollow fiber is prepared.

As another embodiment, the polygonal solution constituting the spinning solution distribution tube 1 using the precursor solution containing the inorganic material as the first spinning solution supplied into the nozzle 1c constituting the spinning solution distribution tube, and the polymer solution It is used as a second spinning solution supplied into the tubular hollow portion 1b to prepare a core-cis-type composite nanofiber in which the core component is an inorganic material and the sheath component is composed of a polymer.

Looking at the embodiment of manufacturing hollow carbon nanofibers using the spinning device of the present invention, using a water-soluble polyvinyl alcohol solution as the first spinning solution supplied into the nozzle (1c) constituting the spinning liquid distribution tube (1) , Using the polyacrylonitrile solution as a second spinning solution supplied into the polygonal tubular hollow portion 1b constituting the spinning solution distribution tube 1 to produce a core-sheath composite nanofiber, and then form a core part To remove the water-soluble polyvinyl alcohol with water to prepare a hollow polyacrylonitrile fiber, and then to stabilize and carbonize the prepared hollow polyacrylonitrile fiber to produce a hollow carbon nanofibers.

In this case, porous carbon nanofibers are manufactured by using a spinning tube provided with two or more nozzles 1c at each corner portion of the polygonal tubular hollow part 1b constituting the spinning liquid distribution tube 1.

The hollow carbon nanofibers or porous carbon nanofibers prepared as described above are useful as filter materials, secondary battery membrane materials, electrode materials, high functional clothing materials, drug delivery materials, and the like.

Hereinafter, the present invention will be described in more detail with reference to Examples.

However, the present invention is not limited by the following examples.

Example  One

Polymethyl methacrylate was dissolved in dimethylformamide as a solvent to prepare a polymethyl methacrylate solution (first spinning solution) having a solid content of 10% by weight.

Polyacrylonitrile was dissolved in dimethylformamide as a solvent to prepare a polyacrylonitrile solution (second spinning solution) having a solid content of 12% by weight.

Next, as illustrated in FIG. 1, (i) a cylindrical spinning tube main body Ta having an outer diameter of 45 mm and a length of 8 mm and 12 formed along the longitudinal direction of the spinning tube main body Ta is shown. Spinning tube (T) having a structure consisting of a rectangular tube-shaped hollow portion (Tb), the corner portion of the octagonal tube-shaped hollow portion (Tb) is in contact with the outer peripheral surface of the radiating tube body (Ta) and (ii) 12) A polygonal tubular hollow having a cylindrical shape and a spinning liquid distribution tube body 1a, which is formed along the longitudinal direction of the spinning liquid distribution tube body 1a inside the spinning liquid distribution tube body 1a. It consists of twelve nozzles 1c with a diameter of 0.7 mm provided in each of the portion 1b and the corner portions of the twelve polygonal tubular hollow portion 1b along the longitudinal direction of the radiating tube body 1a. The corner portions of the pentagonal tubular hollow portion 1b are formed outside the spinning liquid distribution tube body 1a. While rotating the spinning liquid distribution tube (1) having a structure in contact with the surface at 350rpm, a voltage generator 6 applied a voltage of 35kV to the spinning tube (T) and the spinning liquid distribution tube (1) Next, the polymethyl methacrylate solution (the first spinning solution) is supplied into the nozzle 1c having a diameter of 0.7 mm, which forms the spinning liquid distribution tube 1, and at the same time, the octagonal body forming the spinning liquid distribution tube 1 is formed. After supplying a polyacrylonitrile solution (second spinning solution) into the tubular hollow part 1b, the corner part of the pentagonal tubular hollow part Tb which comprises the spinning tube T using centrifugal force and an electric force. The supplied spinning solution through the electrospinning in the direction of the collector (2) subjected to a voltage of 35kV to prepare a core-sheath bicomponent composite nanofiber. The polyacrylonitrile solution (second spinning solution) as a polymer solution was supplied at 0.25cc per minute and the polymethylmethacrylate solution (first spinning solution) was supplied at 0.20cc per minute. At this time, the distance between the collector 2 and the spinning tube 1 was 35 cm.

Scanning electron micrographs of the core-cis type bicomponent composite nanofibers prepared as described above were as shown in FIG. 5.

In FIG. 5, the polymethyl methacrylate component, which is a core component, is well formed in the core portion, and the structure of the polyacrylonitrile, which is a cis component, is enclosed outside the polymethyl methacrylate component, which is the core component.

Example  2

The core-cis type bicomponent composite nanofibers prepared in FIG. 1 were stabilized at 240 ° C. for 30 minutes in air, and then heat-treated at 800 ° C. for 2 hours and 30 minutes in a nitrogen atmosphere to prepare hollow carbon nanofibers. Scanning electron micrographs of the prepared hollow carbon nanofibers were as shown in FIG. 6. 6 shows that the hollow part is well formed.

* Description of the sign *

T: Spinning Tube

Ta: main body of the spinning tube

Tb is the hollow tube-shaped hollow part of the spinning tube

1: spinning liquid distribution tube

1a: Main body of spinning liquid distribution tube

1b: Hollow section on polygonal tube of spinning liquid distribution tube

1c: nozzle

2: collector

3: spinning solution supply pipe

3a: first spinning solution (core forming spinning solution) supply pipe

3b: 2nd spinning solution (spinning solution for forming a sheath) supply pipe

4: pump for supplying the second spinning solution (the spinning solution for forming the sheath)

5: pump for supplying the first spinning solution (spinning solution for core formation)

6: voltage generator

F: Bicomponent composite nanofiber

Fc: Core part of bicomponent composite nanofiber

Fs: Sheath part of bicomponent composite nanofiber

d: distance between the nozzle 1c and the corner vertex of the polygonal tubular hollow part 1b nearest to the nozzle.

A: 1st spinning solution (spinning solution for core formation)

B: second spinning solution (spinning solution for forming a sheath)

Tb ': Hollow corner of polygonal tube of spinning tube

The present invention can be used to produce high quality bicomponent composite nanofibers with high productivity.

Claims (13)

(i) a polygonal tube-shaped hollow formed along the longitudinal direction of the radiation tube body Ta and the inside of the radiation tube body Ta having one of the shapes selected from a cylindrical shape and a conical shape; A radiation tube (T) comprising a portion (Tb) and having a structure in which corner portions of the polygonal tube-shaped hollow portion (Tb) are in contact with an outer circumferential surface of the radiation tube body (Ta); And (ii) a spinneret dispensing tube body (1a) connected to the spinneret (T) and having a shape selected from cylindrical and conical, and the spinneret dispensing inside the spinneret dispensing tube body (1a); Along the longitudinal direction of the spinning fluid distribution tube body 1a at each of the corner portions of the polygonal tubular hollow part 1b and the polygonal tubular hollow part 1b formed along the longitudinal direction of the tube main body 1a. A spinning solution dispensing tube (1) comprising a nozzle (1c) provided and having a structure in which corner portions of the polygonal tube-shaped hollow part (1b) are in contact with an outer circumferential surface of the spinning liquid dispensing tube body (1a); Spinning device for producing a two-component composite nanofiber comprising a. The method according to claim 1, wherein at least two nozzles 1c are formed along the longitudinal direction of the spinning liquid distribution tube body 1a at each corner of the polygonal tubular hollow part 1b constituting the spinning liquid distribution tube 1. Spinning device for producing a two-component composite nanofiber, characterized in that it is installed. The spinneret according to claim 1, wherein the spinneret (T) and the spinneret dispensing tube (1) are integrally formed. The spinning apparatus (T) and the spinning liquid distribution tube (1) are each manufactured and connected to each other by assembling. (i) a polygonal tube-shaped hollow formed along the longitudinal direction of the radiation tube body Ta and the inside of the radiation tube body Ta having one of the shapes selected from a cylindrical shape and a conical shape; A radiation tube (T) and (ii) the radiation tube having a structure consisting of a portion (Tb), the edge portion of the polygonal tubular hollow portion (Tb) abuts the outer peripheral surface of the radiation tube body (Ta) A spinneret dispensing tube body 1a connected to T) and having a shape selected from a cylindrical shape and a conical shape, and a longitudinal direction of the spinneret dispensing tube body 1a inside the spinneret dispensing tube body 1a. With a nozzle 1c provided along the longitudinal direction of the spinning fluid distribution tube body 1a at each of the corner portions of the polygonal tubular hollow part 1b and the polygonal tubular hollow part 1b formed along the line. The polygonal tu The spinning liquid is distributed to the voltage generator 6 while rotating the spinning liquid distribution tubes 1 having a structure in which the corner portions of the upper hollow portion 1b are in contact with the outer circumferential surface of the spinning liquid distribution tube body 1a. A high voltage was applied to the tube 1 and the spinning tube T, and (iii) the spinning solution distribution tube 1 was supplied with a first spinning solution into the nozzle 1c constituting the spinning liquid distribution tube 1. A second spinning solution different from the first spinning solution is supplied into the polygonal tubular hollow portion 1b constituting the step C), and then (iv) the first spinning solution and the spinning solution supplied into the nozzle 1c of the spinning tube. The second generating solution supplied into the polygonal tube-shaped hollow part 1b of the distribution tube is formed through the corners of the polygonal tube-shaped hollow part Tb forming the spinning tube T by using centrifugal force and electric force. Radiating toward the collector 2 in which high voltage is applied by Two-component process for producing a composite nano-fiber. The method for producing a two-component composite nanofiber according to claim 5, wherein two or more nozzles are provided in each corner portion of the polygonal tubular hollow portion (1b) constituting the spinning liquid distribution tube (1). The method of claim 5 wherein the first spinning solution supplied into the nozzle (1c) constituting the spinning liquid distribution tube (1) is a spinning solution for core formation, the spinning liquid distribution tube (2) The method of producing a two-component composite nanofiber, characterized in that the second spinning solution supplied into the polygonal tubular hollow portion (1b) constituting the sheath is a spinning solution for forming a sheath. The method of claim 5, wherein the bicomponent composite nanofiber is a bi-component composite nanofiber, characterized in that one of the form selected from the core-sheath composite nanofibers and Side by side type composite nanofibers Way. The method of claim 5, wherein the core-cis-type composite nanofibers have two or more core parts. 6. The product according to claim 5, wherein the first spinning solution supplied into the nozzle 1c constituting the spinning liquid distribution tube 1 and the polygonal tubular hollow part 1b constituting the spinning liquid distribution tube 1 are supplied. The two-use solution is a method for producing two-component composite nanofibers, characterized in that the different polymer solution. 6. The product according to claim 5, wherein the first spinning solution supplied into the nozzle 1c constituting the spinning liquid distribution tube 1 and the polygonal tubular hollow part 1b constituting the spinning liquid distribution tube 1 are supplied. Two-use solution is a method of producing a two-component composite nanofibers, characterized in that the precursor solution containing different inorganic materials. 6. The polygonal tubular hollow portion 1b according to claim 5, wherein the first spinning solution supplied into the nozzle 1c constituting the spinning liquid distribution tube 1 is a polymer solution and forms the spinning liquid distribution tube 1. The second spinning solution supplied into the method of producing a two-component composite nanofibers, characterized in that the precursor solution containing the inorganic material. The method of claim 5, wherein the first spinning solution supplied into the nozzle (1c) constituting the spinning liquid distribution tube (1) is a precursor solution containing inorganic matter, and a polygonal tube shape constituting the spinning liquid distribution tube (1). Method for producing a two-component composite nanofibers, characterized in that the second spinning solution supplied into the hollow portion (1b) is a polymer solution.

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