WO2018084396A1

WO2018084396A1 - Spinning device for manufacturing side-by-side-type bicomponent complex nanofiber and method for manufacturing bicomponent complex nanofiber using same

Info

Publication number: WO2018084396A1
Application number: PCT/KR2017/004452
Authority: WO
Inventors: 김학용; 김태우; 채수형; 박미라
Original assignee: 주식회사 우리나노; 전북대학교산학협력단
Priority date: 2016-11-07
Filing date: 2017-04-26
Publication date: 2018-05-11
Also published as: KR101855660B1

Abstract

A device for spinning a side-by-side-type bicomponent complex nanofiber according to the present invention comprises: (i) a spinning tube (T) comprising a spinning tube body (Ta), a polygonal tube-shaped hollow portion (Tb), and solution separating plates (Tc); (ii) a first spinning solution reservoir (R1) positioned on the lower end of the spinning tube (T); (iii) a second spinning solution reservoir (R2) positioned on the lower end of the first spinning solution reservoir (R1); (iv) two or more first spinning solution supply tubes (H1) installed inside the first spinning solution reservoir (R1) so as to communicate with the polygonal tube-shaped hollow portion (Tb); and (v) two or more second spinning solution supply tubes (H2) installed inside the second spinning solution reservoir (R2) so as to communicate with the polygonal tube-shaped hollow portion (Tb). According to the present invention, solution separating plates (Tc) are installed inside the polygonal tube-shaped hollow portion (Tb) such that, just before spinning two types of spinning solutions through the corner part of the polygonal tube-shaped hollow portion (Tb) abutting the spinning tube body (Ta), intermixing of the spinning solutions is effectively prevented, making it easy to adjust the sectional shape of the manufactured side-by-side-type bicomponent complex nanofiber. In addition, the present invention simultaneously employs electrostatic force and centrifugal force and thus can manufacture a bicomponent complex nanofiber with a high productivity (amount of discharge); volatilization and recovery of the solvent are easy; and it is possible to effectively prevent the spinning solution from dropping onto the collector in a solution state rather than in a fiber state (drop phenomenon), thereby improving the quality of the bicomponent complex nanofiber web.

Description

Spinning device for the production of side by side type bicomponent composite nanofibers, and method for producing the bicomponent composite nanofibers using the same

The present invention relates to a spinning device for the production of side-by-side bicomponent composite nanofibers and a method of manufacturing the side-by-side bicomponent composite nanofibers using the same, and more particularly, having a desired cross-sectional shape with high productivity per unit time and processability. The present invention relates to a spinning tube capable of producing side by side bicomponent composite nanofibers, and also to a method of manufacturing side by side bicomponent composite nanofibers of various cross-sectional shapes using the spinning tube.

The term "side by side type bicomponent composite nanofiber" of the present invention is used to mean an eccentric side by side bicomponent composite nanofiber.

In the prior art for producing side-by-side composite nanofibers, when the two-component composite nanofibers are manufactured through a two-layered tube (core / sheath) nozzle in which the inner tube and the outer tube are arranged concentrically, the double tube form The method of changing the position of the inner tube constituting the nozzle of or changing the discharge amount of the spinning solution discharged through the outer tube and the discharge amount of the spinning solution discharged through the inner tube has been mainly used.

However, in the conventional method, when the solvents in the two kinds of spinning solution radiated through the double-pipe nozzle are different from each other, solidification of the spinning solutions occurs at the tip of the double-pipe nozzle where the two spinning solutions meet and come into contact with each other. There is a problem that the nozzle is clogged, the nanofiber forming ability is greatly reduced, and the cross-sectional shape of the side-by-side bicomponent composite nanofiber is not easily changed to a desired shape.

In addition, since the conventional method is electrospinning only depending on the electrostatic force, the discharge amount per nozzle unit hole per unit time is very low to 0.01g level, so productivity is difficult to eventually mass production, and nozzle replacement and cleaning have been very cumbersome.

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, the conventional methods are a phenomenon in which the spinning solution falls on the collector in a solution state rather than fibrous (hereinafter referred to as "droplet phenomenon") is badly generated, the quality of the side-by-side bicomponent composite nanofiber web is degraded There was also.

SUMMARY OF THE INVENTION An object of the present invention is to provide a spinner for producing a side by side type bicomponent composite nanofiber, which can easily adjust the cross-sectional shape of a side by side type bicomponent composite nanofiber to be manufactured.

Another object of the present invention can minimize the risk of operation due to high voltage applied, can greatly improve the productivity of the side-by-side bicomponent composite nanofibers, and prevent side-by-side by the droplet phenomenon in the production of nanofibers It is to provide a spinning device for the production of side-by-side bicomponent composite nanofibers capable of improving the quality of a bicomponent composite nanofiber web.

Still another object of the present invention is to provide a method for producing high quality side by side bicomponent composite nanofibers with high productivity using the spin tube for preparing side by side bicomponent composite nanofibers.

In order to achieve the above object, in the present invention, the spinneret for producing a side-by-side composite nanofiber is (i) a spinning tube main body (Ta) having one form selected from a cylindrical shape and a conical shape; Diagonally connects the corners of the polygonal tube-shaped hollow portion Tb formed along the longitudinal direction of the radiation tube body Ta and the polygonal tube-shaped hollow portion Tb contacting the radiation tube body Ta. While being located inside the polygonal tubular hollow part Tb along the longitudinal direction of the polygonal tubular hollow part Tb, the solution separation plate Tc divides the internal space of the polygonal tubular hollow part Tb into several sections. Spinning tube (T) consisting of; (ii) a first one disposed at the bottom of the spinning tube (T) and having one of cylindrical and conical shapes and storing one spinning solution of two spinning solutions supplied into the spinning tube (T); Spinning solution reservoir (R1); (iii) located at the bottom of the first spinning solution reservoir (R1), having one form selected from cylindrical and conical, and the other spinning solution of the spinning solution of the two components supplied into the spinning tube (T) A second release liquid storage tank (R2) for storing; (iv) two installed in the first spinning fluid storage tank R1 along the longitudinal direction of the first spinning fluid storage tank R1 and having an upper end communicating with the polygonal tubular hollow portion Tb; The first first spinning solution supply tube (H1); And (v) 2 which is provided inside the second spinning solution storage tank R2 along the longitudinal direction of the second spinning solution storage tank R2 and whose upper end portion communicates with the polygonal tubular hollow portion Tb. It consists of two or more second spinning solution supply tube (H2).

In this case, the first spinning solution supply tube (H1) and the second spinning solution supply tube (H2) are partition regions (T1, T2) of the polygonal tube-shaped hollow portion (Tb) partitioned by the solution separation plate (Tc) Communicate with each other.

In addition, the present invention (i) is formed along the longitudinal direction of the radiation tube body Ta, the inside of the radiation tube body Ta, having a shape selected from one of the cylindrical and conical, the radiation tube body (Ta) Polygonal tube along the longitudinal direction of the polygonal tubular hollow part Tb diagonally connecting the corners of the polygonal tubular hollow part Tb and the polygonal tubular hollow part Tb which is in contact with the radiating tube body Ta The voltage generated while rotating the spinning tube (T) consisting of the solution separation plate (Tc) located in the upper hollow portion (Tb) partitioning the internal space of the polygonal tube-shaped hollow portion (Tb) into several sections A high voltage is applied to the spinning tube (T) and the collector (1) located above the spinning tube (T) with the apparatus (2), and then (ii) the pump for supplying the first spinning liquid (spinning liquid A) (P1). ) And the first spinning solution (spinning fluid A) by using the supply tube (S1) (Spinning solution A) is located at the bottom of the spinning tube (T), has a shape selected from the cylindrical and conical, and stores one spinning solution of the spinning solution of the two components supplied into the spinning tube (T) (Iii) using a pump (P2) for supplying the second spinning liquid (spinning liquid B) and a tube S2 for supplying the second spinning liquid (spinning liquid B). The second spinning liquid (spinning liquid B) is located at the bottom of the first spinning liquid storage tank (R1), and has one form selected from a cylindrical shape and a conical shape, and is a chamber of two components supplied into the spinning tube (T). After supplying into the second spinning solution reservoir (R2) for storing the other one of the spinning solution, (iv) of the first spinning solution storage tank (R1) along the longitudinal direction of the first spinning solution storage tank (R1) It is installed inside, and the upper end is the polygonal tube-shaped hollow part It is provided in the inside of the said 2nd spinning liquid storage tank R2 along the longitudinal direction of the 2 or more 1st spinning liquid supply tube H1 and the said 2nd spinning liquid storage tank R2 in communication with (Tb), The first spinning liquid (spinning liquid A) and the first spinning liquid stored in the first spinning liquid storage tank R1 through two or more second spinning liquid supply tubes H2 whose upper end portion communicates with the polygonal tubular hollow portion Tb. The second spinning liquid (spinning liquid B) stored in the two spinning liquid storage tank R2 was alternately supplied to the partition areas T1 and T2 of the polygonal tubular hollow portion Tc partitioned by the solution separating plate Tc. (V) Using the centrifugal force and electric force, the first spinning solution (spinning solution A) and the second spinning solution (spinning solution B) supplied into the partition areas T1 and T2 of the polygonal tubular hollow portion Tc were Radiating toward the collector 1 in which high voltage is applied by the voltage generator 2 through the corner portion of the polygonal tubular hollow portion Tb. W side-by-side to produce a two-component composite nanofiber.

According to the present invention, two types of spinning solutions are formed through the corners of the polygonal tube-shaped hollow part Tb in which the solution separation plates Tc are installed in the polygonal tube-shaped hollow part Tb and contact the spinning tube body Ta. Since the spinning solutions can be effectively prevented from mixing with each other until just before spinning, the cross-sectional shape of the side-by-side bicomponent composite nanofibers manufactured can be easily controlled.

In addition, since the present invention uses electrostatic force and centrifugal force simultaneously, bicomponent composite nanofibers can be manufactured with high productivity (discharge amount), solvent volatilization and recovery are easy, and the spinning solution is not fibrous but is in solution state on the collector. Falling phenomenon (drop phenomenon) is also effectively prevented to improve the quality of the two-component composite nanofiber web.

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

FIG. 2 is an enlarged schematic view of the radiation tube T in FIG. 1. FIG.

Figure 3 is a schematic diagram showing the mechanism by which the side-by-side bicomponent composite nanofibers are formed at the corners of the spinning tube (T) constituting the present invention.

Figure 4 is a schematic cross-sectional view of the side-by-side bicomponent composite nanofiber produced in Figure 3;

Figure 5 is a schematic diagram showing a mechanism in which the side by-side bicomponent composite nanofibers having an eccentric cross-sectional shape at the corners of the spinning tube (T) constituting the present invention.

6 is a schematic cross-sectional view of the side-by-side bicomponent composite nanofiber manufactured in FIG. 5.

Fig. 7 is a cross-sectional schematic view of the radiating tube T constituting the present invention in a transverse direction.

8 is a scanning electron micrograph of the side-by-side bicomponent composite nanofibers prepared in Example 1;

Figure 9 is an enlarged cross-sectional view of the side-by-side bicomponent composite nanofibers prepared in Example 1.

10 is a scanning electron microscope photograph of the side-by-side bicomponent composite nanofibers prepared in Example 2. FIG.

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

Spinning apparatus for producing a two-component side-by-side composite nanofiber according to the present invention is (i) a spinning tube body (Ta) having one form selected from cylindrical and conical, as shown in Figure 1 and 2, the spinning Polygonal tube-shaped hollow portion Tb formed in the longitudinal direction of the radiation tube body Ta and inside the tube body Ta and polygonal tube-shaped hollow portion Tb contacted with the radiation tube body Ta. While connecting the corners of the polygonal tube-shaped hollow portion (Tb) along the longitudinal direction of the polygonal tube-shaped hollow portion (Tb) located in the interior space of the polygonal tube-shaped hollow portion (Tb) divided into several sections Spinning tube (T) consisting of the main solution separation plate (Tc); (ii) a first one disposed at the bottom of the spinning tube (T) and having one of cylindrical and conical shapes and storing one spinning solution of two spinning solutions supplied into the spinning tube (T); Spinning solution reservoir (R1); (iii) located at the bottom of the first spinning solution reservoir (R1), having one form selected from cylindrical and conical, and the other spinning solution of the spinning solution of the two components supplied into the spinning tube (T) A second release liquid storage tank (R2) for storing; (iv) two installed in the first spinning fluid storage tank R1 along the longitudinal direction of the first spinning fluid storage tank R1 and having an upper end communicating with the polygonal tubular hollow portion Tb; The first first spinning solution supply tube (H1); And (v) 2 which is provided inside the second spinning solution storage tank R2 along the longitudinal direction of the second spinning solution storage tank R2 and whose upper end portion communicates with the polygonal tubular hollow portion Tb. And at least two second spinning solution feed tubes (H2).

The first spinning solution supply tube H1 and the second spinning solution supply tube H2 alternate with the partition regions T1 and T2 of the polygonal tubular hollow portion Tb, which are partitioned by the solution separation plate Tc. Communicating with

In order to form the side-by-side bicomponent composite nanofibers at the corners of the polygonal tubular hollow portion Tb, which is in contact with the spinning tube body Ta, to form a side-by-side type bicomponent composite nanofiber, the spinning tube body Ta is in contact with the spinning tube body Ta. The number of corners of the polygonal tubular hollow (Tb) shall be even.

The spinning tube (T), the first spinning solution reservoir (R1) and the second spinning solution reservoir (R2) may be formed integrally or separated from each other. When formed integrally, the first spinning solution reservoir R1 and the second spinning solution storage tank R1 are rotated together with the spinning tube T during the spinning process for manufacturing the side-by-side bicomponent composite nanofibers. When formed separately, only the spinning tube T is rotated during the spinning process of manufacturing the side by side type bicomponent composite nanofibers, and the first spinning solution reservoir R1 and the second spinning solution storage tank may not be rotated. .

Next, looking at the side-by-side bicomponent composite nanofiber manufacturing method according to the present invention, as shown in Figure 1, (i) a spinning tube body (Ta) having one form selected from cylindrical and conical A polygonal tube-shaped hollow portion Tb formed in the longitudinal direction of the radiation tube body Ta and a polygonal tube-shaped hollow portion abutting with the radiation tube body Ta are formed inside the radiating tube body Ta. The inner space of the polygonal tubular hollow part Tb is divided into several sections by connecting the edges of Tb diagonally and being located inside the polygonal tubular hollow part Tb along the longitudinal direction of the polygonal tubular hollow part Tb. The collector (1) located above the radiation tube (T) and the radiation tube (T) with the voltage generator (2) while rotating the spinning tube (T) consisting of the solution separation plate (Tc) partitioned by ) And (ii) The first spinning liquid (spinning liquid A) is discharged to the bottom of the spinning tube (T) by using the first spinning liquid (spinning liquid A) supplying pump (P1) and the first spinning liquid (spinning liquid A) supplying tube (S1). Located in, and having a form selected from the cylindrical and conical, and feeding into the first spinning solution storage tank (R1) for storing one spinning solution of the spinning solution of two components supplied into the spinning tube (T) and (iii) using the pump (P2) for supplying the second spinning liquid (spinning liquid B) and the second spinning liquid (spinning liquid B) and the tube S2 for supplying the second spinning liquid (spinning liquid B). Located in the bottom of the one-use liquid storage tank (R1), the second chamber having a shape selected from the cylindrical and conical shape, and storing the other one of the spinning solution of the two components of the spinning solution supplied into the spinning tube (T) After supplying into the used liquid storage tank (R2), and (iv) the path of the first spinning liquid storage tank (R1) At least two first spinning solution supply tubes H1 and the second installed in the first spinning solution storage tank R1 and having an upper end portion communicating with the polygonal tubular hollow portion Tb along the direction; Supply at least two second spinning solution installed in the second spinning solution storage tank R2 along the longitudinal direction of the spinning solution storage tank R2 and having an upper end communicating with the polygonal tubular hollow portion Tb. Through the tube (H2), the first spinning liquid (spinning liquid A) stored in the first spinning liquid storage tank (R1) and the second spinning liquid stored in the second spinning liquid storage tank (R2) (spinning liquid B) are separated into a solution separation plate ( Alternately feed into the compartments T1, T2 of the polygonal tubular hollow part Tc partitioned by Tc), and then (v) into the compartments T1, T2 of the polygonal tubular hollow part Tc. Polygonal tube by using centrifugal force and electric force The side by-side type bicomponent composite nanofibers are produced by spinning in the direction of the collector 1 in which the high voltage is applied by the voltage generator 2 through the corner portion of the upper hollow portion Tb.

In the present invention, the partition area of the polygonal tube-shaped hollow portion Tb located on the left adjacent to the corner of the polygonal tube-shaped hollow portion Tb in contact with the radiation tube body Ta and the polygonal tube-shaped hollow portion Tb. The compartment area of the polygonal tubular hollow portion (Tb) located on the right side adjacent to the corner of the chamber is equal to each other as shown in FIG. 3, and the A component (NA) consisting of the spinning solution A on the cross section as shown in FIG. Orthogonal side-by-side bicomponent composite nanofibers (NC) in which the B component (NB) made of the working liquid B are arranged in the same area may be manufactured, and the polygonal tubular hollow portion in contact with the spinning tube body Ta ( The area of the partitioned area of the polygonal tubular hollow portion Tb located on the left side adjacent to the corner of Tb) and the area of the partitioned area of the polygonal tubular hollow part Tb located on the right adjacent corner of the polygonal tube-shaped hollow portion Tb. As shown in FIG. As shown in Fig. 6, an eccentric side by side type two component in which an A component (NA) consisting of the spinning solution A and a B component (NB) consisting of the spinning solution B are arranged on different cross sections on the cross section. Composite nanofibers (NC) may also be prepared.

The first spinning solution (spinning solution A) and the second spinning solution (spinning solution B) supplied into the partition regions T1 and T2 of the polygonal tubular hollow part Tb are polymer solutions of the same kind or different molecular weights. It may be a polymer solution of, or may be a precursor solution containing different inorganic materials.

The first spinning solution (spinning solution A) supplied into the partition region of the polygonal tubular hollow portion Tb is a polymer solution, and the second spinning solution (spinning solution B) supplied into the partition region of the polygonal tubular hollow portion Tb is ) May be a precursor solution containing minerals.

The first spinning solution supplied in the partition region of the polygonal tubular hollow portion (Tb) (spinning liquid A) is a precursor solution containing an inorganic substance, and the second spinning solution supplied into the partition region of the polygonal tubular hollow portion (Tb). (Spinning liquid B) may be a polymer solution.

In the present invention, since the corner portion of the polygonal tubular hollow portion Tb in contact with the spinning tube body Ta is divided into two regions by the solution separation plate Tc, the first spinning solution ( Conventional problem that the spinning solution A) and the second spinning solution (spinning solution B) can be effectively prevented from being mixed until the spinning solution is spun off, whereby the spinning solution is solidified while being mixed and the fiber forming ability is lowered. Can effectively solve the problem.

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

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

Example One

The polyvinyl alcohol polymer was dissolved in water as a solvent to prepare a polyvinyl alcohol solution (first spinning solution / spinning solution A) having a solid content of 18% by weight.

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

Next, as shown in FIG. 1, (i) a cylindrical spinning tube body Ta having an outer diameter of 48 mm and a length of 8 mm, and the spinning tube body Ta inside the spinning tube body Ta. Polygonal tube-shaped hollow portion while diagonally connecting the corners of the hexagonal tubular hollow portion (Tb) formed in the longitudinal direction of the hexagonal tubular hollow portion (Tb) abutting with the radiating tube body (Ta) ( Located in the hexagonal tubular hollow portion (Tb) along the longitudinal direction of the Tb) consisting of solution separation plates (Tc) for partitioning the inner space of the hexagonal tube-shaped hollow portion (Tb) into several sections While rotating the spinning tube (T) at 350rpm, the voltage generator (2) is applied a voltage of 40kV to the radiation tube (T) and the collector (1) located above the radiation tube (T), (ii ) Using the pump (P1) for supplying the first spinning liquid (spinning liquid A) and the tube (S1) for supplying the first spinning liquid (spinning liquid A) While supplying one spinning solution (spinning liquid A) at a rate of 0.15cc per minute into the first spinning solution storage tank R1 having a cylindrical structure located at the bottom of the spinning tube T, (iii) the second spinning liquid (spinning liquid B) ) A cylindrical shape in which a second spinning fluid (spinning fluid B) is positioned at the bottom of the first spinning fluid storage tank R1 by using a supply pump P2 and a second spinning fluid (spinning fluid B) and a tubing S2. It is supplied at 0.15cc per minute into the second spinning solution storage tank (R2) of the structure, and (iv) is installed inside the first spinning solution storage tank (R1) along the longitudinal direction of the first spinning solution storage tank (R1) And the second spinning fluid storage tank along the longitudinal direction of the three first spinning fluid supply tubes H1 and the second spinning fluid storage tank R2 whose upper end portions communicate with the hexagonal tubular hollow portion Tb. Three second spinning uses provided in the inside of (R2) and having an upper end communicating with the polygonal tube-shaped hollow part Tb. Separating solution of the first spinning liquid (spinning liquid A) stored in the first spinning liquid storage tank (R1) and the second spinning liquid stored in the second spinning liquid storage tank (R2) through the supply tube (H2) Alternately supplied to the partition areas T1 and T2 of the hexagonal tubular hollow part Tc partitioned by (Tc), and then (v) the partition areas T1 and T2 of the hexagonal tubular hollow part Tc. 2) The voltage generating device (2) through the corner portion of the hexagonal tube-shaped hollow part (Tb) by using the centrifugal force and the electric force of the first spinning liquid (spinning liquid A) and the second spinning liquid (spinning liquid B) supplied into The side-by-side type bicomponent composite nanofibers were produced by spinning in the direction of the collector 1 under high voltage.

At this time, the distance between the collector (1) and the spinning tube (2) was 35cm, the diameter of each of the first spinning solution supply tube (H1) and the second spinning solution supply tube (H2) was 4mm, the first chamber The liquid bath (R1) and the second spinning solution tank (R2) were each rotated at 350 rpm.

Scanning electron micrographs of the side-by-side bicomponent composite nanofibers prepared as described above were as shown in FIG. 8, and the enlarged cross-sectional photograph of the side-by-side bicomponent composite nanofibers prepared as described above was illustrated in FIG. 9.

Example 2

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

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

Next, (i) a cylindrical spinning tube body Ta having an outer diameter of 56 mm and a length of 8 mm, and formed inside the spinning tube body Ta along the longitudinal direction of the spinning tube body Ta. Along the longitudinal direction of the octagonal tubular hollow portion Tb while connecting the corners of the octagonal tubular hollow portion Tb and the octagonal tubular hollow portion Tb abutting against the radiating tube body Ta. 350rpm spinning tube (T) consisting of solution separation plate (Tc) is located inside the octagonal tube-shaped hollow portion (Tb) partitioning the internal space of the octagonal tube-shaped hollow portion (Tb) into several sections While rotating, applying a voltage of 40 kV to the radiation tube (T) and the collector (1) located above the radiation tube (T) with the voltage generator (2), and then (ii) the first spinning solution (spinning solution) A) Using the pump P1 for supply and the first spinning liquid (spinning liquid A), the first spinning liquid (spinning liquid A) may be obtained by using the supply tube S1. While supplying 0.166cc per minute into the first spinning solution reservoir R1 having a cylindrical structure located at the bottom of the spinning tube T, (iii) the second spinning solution (spinning solution B) and the pump P2 for supplying A second spinning solution storage tank (R2) having a cylindrical structure in which a second spinning solution (a spinning solution B) is positioned below the first spinning solution storage tank (R1) using a spinning solution (spinning solution B) supplying tube (S2). 0.2cc per minute into the container, and (iv) the inside of the first spinning fluid storage tank R1 is installed along the longitudinal direction of the first spinning fluid storage tank R1, and an upper end thereof is hollow in the octagonal tube shape. It is provided in the inside of the said 2nd spinning liquid storage tank R2 along the longitudinal direction of the four 1st spinning liquid supply tube H1 and the 2nd spinning liquid storage tank R2 which communicate with the part Tb, The first spinning use is carried out through four second spinning solution supply tubes (H2) whose upper end portion communicates with the octagonal tubular hollow portion (Tb). An octagonal tube shape in which the first spinning liquid (spinning liquid A) stored in the storage tank R1 and the second spinning liquid (spinning liquid B) stored in the second spinning liquid storage tank R2 are partitioned by the solution separation plate Tc. (V) a first spinning solution supplied in the compartments T1 and T2 of the hollow part Tc and then into the compartments T1 and T2 of the octagonal tubular hollow part Tc A) and the second spinning liquid (spinning liquid B) are directed to the collector 1 in which high voltage is applied by the voltage generator 2 through the corner portion of the octagonal tube-shaped hollow part Tb by using centrifugal force and electric force. Side-by-side bicomponent composite nanofibers were prepared by spinning.

Scanning electron micrographs of the side-by-side bicomponent composite nanofibers prepared as described above were as shown in FIG. 8, and the enlarged cross-sectional photograph of the side-by-side bicomponent composite nanofibers prepared as described above was illustrated in FIG. 10.

* Explanation of Codes *

1: collector

2: voltage generator

T: Spinning Tube

Ta: Spinning tube body

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

Tc: Solution separation plate located in the hollow portion on the polygonal tube of the spinning tube.

T1: Division area in which spinning solution A is supplied in the hollow portion on the polygonal tube of the spinning tube

T2: Division area in which the spinning solution B is supplied among the hollow portions on the polygonal tube of the spinning tube

H1: First spinning solution supply tube for supplying spinning solution A to spinning tube (T)

H2: Second spinning solution supply tube for supplying spinning solution B to spinning tube (T)

R1: First spinning solution storage tank for supplying spinning solution A to the spinning tube T by a fixed amount

R2: second spinning solution reservoir for supplying spinning solution B to the spinning tube (T) by a predetermined amount

S1: Tube supplying the spinning solution A to the first spinning solution reservoir R1

S2: Tube supplying the spinning solution B to the second spinning solution reservoir (R2)

P1: Pump for spinning solution A supply

P2: Pump for spinning solution B supply

Nc: Side by Side Bicomponent Composite Nanofiber

NA: A component in side by side type bicomponent composite nanofiber

NB: B component in side by side type bicomponent composite nanofiber

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

Claims

(i) a spinning tube body Ta having one of cylindrical and conical shapes, and a polygonal tubular hollow formed along the longitudinal direction of the spinning tube main Ta inside the spinning tube main Ta. Polygonal tubular hollow part Tb along the longitudinal direction of polygonal tubular hollow part Tb diagonally connecting the edges of the polygonal tubular hollow part Tb which is in contact with the part Tb and the radiating tube main body Ta. Spinning tube (T) consisting of a solution separation plate (Tc) located in the inside of the polygonal tube-shaped hollow portion (Tb) partitioning the internal space in several sections;

(ii) a first one disposed at the bottom of the spinning tube (T) and having one of cylindrical and conical shapes and storing one spinning solution of two spinning solutions supplied into the spinning tube (T); Spinning solution reservoir (R1);

(iii) located at the bottom of the first spinning solution reservoir (R1), having one form selected from cylindrical and conical, and the other spinning solution of the spinning solution of the two components supplied into the spinning tube (T) A second release liquid storage tank (R2) for storing;

(iv) two installed in the first spinning fluid storage tank R1 along the longitudinal direction of the first spinning fluid storage tank R1 and having an upper end communicating with the polygonal tubular hollow portion Tb; The first first spinning solution supply tube (H1); And

(v) two inside the second spinning fluid storage tank R2 along the longitudinal direction of the second spinning fluid storage tank R2 and having an upper end communicating with the polygonal tubular hollow portion Tb; The second spinning solution supply tube (H2); Including;

The first spinning solution supply tube H1 and the second spinning solution supply tube H2 alternate with the partition regions T1 and T2 of the polygonal tubular hollow portion Tb, which are partitioned by the solution separation plate Tc. Spinning device for the production of side-by-side bicomponent composite nanofiber, characterized in that it is in communication with.
The spinneret according to claim 1, wherein the number of corners of the polygonal tubular hollow portion (Tb) in contact with the spinning tube body (Ta) is an even number.
The side-by-side type bicomponent composite nanofiber according to claim 1, wherein the spinning tube (T), the first spinning solution storage tank (R1), and the second spinning solution storage tank (R2) are formed to be integral. Spinning apparatus for manufacturing.
The method of claim 1, wherein the spinning tube (T), the first spinning solution storage tank (R1) and the second spinning solution storage tank (R2) are formed separately from each other for side-by-side type two-component composite nanofiber manufacturing Spinning device.
(i) a spinning tube body Ta having one of cylindrical and conical shapes, and a polygonal tubular hollow formed along the longitudinal direction of the spinning tube main Ta inside the spinning tube main Ta. Polygonal tubular hollow part Tb along the longitudinal direction of polygonal tubular hollow part Tb diagonally connecting the edges of the polygonal tubular hollow part Tb which is in contact with the part Tb and the radiating tube main body Ta. ) To the voltage generator (2) while rotating the spinning tube (T) consisting of the solution separation plate (Tc) is located in the interior of the polygonal tube-shaped hollow portion (Tb) partitioning the internal space in several sections After applying a high voltage to the spinning tube (T) and the collector (1) located on the top of the spinning tube (T), (ii) the pump (P1) for supplying the first spinning liquid (spinning liquid A) and the first chamber Using liquid (Spinning liquid A) Using the supply tube (S1), Located in the bottom of the spinning tube (T), having a shape selected from the cylindrical and conical, the first spinning solution storage tank (R1) for storing one spinning solution of the spinning solution of two components into the spinning tube (T) ) And at the same time, (iii) the second spinning liquid (spinning liquid B) using the second pump (spinning liquid B) and the second spinning liquid (spinning liquid B) using the feed tube (S2). B) is located at the bottom of the first spinning solution storage tank (R1), having a shape selected from cylindrical and conical, and storing the other spinning solution of the spinning solution of the two components into the spinning tube (T) After supplying into the second spinning liquid storage tank (R2), (iv) is installed inside the first spinning liquid storage tank (R1) along the longitudinal direction of the first spinning liquid storage tank (R1), the upper end is the polygon Two or more first communicating with the tubular hollow portion Tb; It is installed inside the second room-use liquid storage tank R2 along the length direction of the use liquid supply tube H1 and the second room-use liquid storage tank R2, and an upper end portion communicates with the polygonal tube-shaped hollow portion Tb. The first release liquid stored in the first release liquid storage tank R1 (the release liquid A) and the second release liquid stored in the second release liquid storage tank R2 through the two or more second release liquid supply tubes H2; (Spinning liquid B) was alternately supplied to the partition areas T1 and T2 of the polygonal tubular hollow portion Tc partitioned by the solution separator plate Tc, and then (v) the polygonal tubular hollow portion Tc. The first and second spinning liquids (spinning liquid A) and the second spinning liquid (spinning liquid B) supplied into the partition areas T1 and T2 of the polyvinyl tubular hollow part Tb are formed by using centrifugal force and electric force. The side bar characterized by radiating toward the collector 1 in which the high voltage is applied by the voltage generator 2. The method of producing a composite nano-fiber-side type bicomponent.
7. The polygonal tube-shaped hollow portion Tb and the polygonal tube-shaped hollow portion Tb which are located on the left side adjacent to the corner of the polygonal tube-shaped hollow portion Tb in contact with the radiation tube body Ta. A method for producing a side by side type bicomponent composite nanofiber, characterized in that the partition area areas of the polygonal tubular hollow portion (Tb) located on the right side adjacent to the corner of (Tb) are different from each other.
The polymer solution according to claim 5, wherein the first spinning solution (spinning solution A) and the second spinning solution (spinning solution B) supplied into the partition regions T1 and T2 of the polygonal tubular hollow part Tb are different from each other. Method for producing a side-by-side bicomponent composite nanofiber, characterized in that.
The method of claim 5, wherein the first spinning solution (spinning solution A) and the second spinning solution (spinning solution B) supplied into the partition regions T1 and T2 of the polygonal tubular hollow portion Tb have different molecular weights. Method for producing a side-by-side bicomponent composite nanofiber, characterized in that the same type of polymer solution.
6. The method according to claim 5, wherein the first spinning fluid (spinning fluid A) and the second spinning fluid (spinning fluid B) supplied into the partition regions T1 and T2 of the polygonal tubular hollow portion Tb are made of different inorganic materials. Method for producing a side-by-side bicomponent composite nanofiber, characterized in that the precursor solution included.
6. The first spinning solution (spinning solution A) supplied into the partition region of the polygonal tubular hollow portion Tb is a polymer solution, and the second spraying liquid is supplied into the partition region of the polygonal tubular hollow portion Tb. Spinning solution (spinning solution B) is a method of producing a side-by-side bicomponent composite nanofiber, characterized in that the precursor solution containing an inorganic material.
The partitioning part of the polygonal tubular hollow portion Tb is a first spinning solution (spinning liquid A) supplied as a precursor solution containing an inorganic substance, and into the partitioning region of the polygonal tubular hollow portion Tb. Method for producing a side-by-side bicomponent composite nanofiber, characterized in that the second spinning solution (spinning solution B) supplied is a polymer solution.