KR101721987B1 - Electrospinning devices for nano membrane - Google Patents

Abstract

The present invention is characterized in that a nozzle tube body having a plurality of nozzles in the form of a pin in the longitudinal direction of a base material supplied in a unit of the electrospinning device is arranged, and the supply amount of the polymer solution to be supplied to each nozzle body is controlled, The nanomembranes having different basis weights in the longitudinal direction on the same plane of the base material can be laminated by controlling the amount of spinning of the polymer spinning solution which is electrospun through the surface of the base material and each nozzle body and each nozzle can be controlled individually or simultaneously, A plurality of nanomembranes having different basis weights are laminated and a plurality of nanomembranes having various basis weights are formed on the nanomembers in the longitudinal direction of the base material, And to provide a spinning device.

Description

[0001] Electrospinning devices for nano membrane [0002]

The present invention relates to an electrospinning apparatus, and more particularly, to an electrospinning apparatus that includes a plurality of nozzle tubes disposed in a unit of an electrospinning apparatus and having a plurality of fin-shaped nozzles in a longitudinal direction on the base, To a nanomembrane electrospinning device for regulating the basis weight of a nanomembrane laminated on a substrate by controlling a spinning amount of a polymer spinning solution electrospun in the longitudinal direction of the substrate

Generally, a nanofiber refers to a microfiber having a diameter of only a few tens to a few hundred nanometers, and is produced by an electric field. That is, nanofibers generate electrical repulsive force inside the polymer material by applying a high voltage electric field to the polymer material, which is the raw material, and the nanofibers are manufactured and produced by breaking the molecules into a nano-sized yarn shape.

At this time, as the electric field becomes stronger, the polymer material as the raw material is finely torn, so that a nanofiber having a thinning of 10 to 1000 nm can be obtained.

In the conventional technology for spinning nanofibers, since it is limited to a small-scale working line focused on a laboratory, there is a demand for a technique of spinning nanofibers by dividing a spinning zone and using a unit concept.

On the other hand, in the conventional electrospinning apparatus, a spinning solution is electrospun on one surface of a substrate supplied from the outside, and a nanomembrane is laminated to produce nanofibers. That is, the conventional electrospinning device comprises a bottom-up or top-down electrospinning device, and the spinning solution is electrospun on only the bottom surface or the top surface of the substrate supplied into the electrospinning device to form a nanomembrane by laminating the nanomembrane.

As described above, since the electrospinning device comprises the bottom-up electrospinning device or the top-down electrospinning device, the spinning solution is electrospun to the bottom surface or the top surface of the substrate supplied from the outside and transported in a predetermined direction, .

As shown in FIG. 1, the top-down electrospinning device of the bottom-up or top-down electrospinning device includes a spinning solution main tank 120 filled with a polymer spinning solution and a polymer spinning solution filled in the spinning solution main tank 120 A nozzle block 111 for discharging the polymer solution in the spinning liquid main tank and having a plurality of nozzles 111a arranged in a pin shape and a nozzle block 111a And a voltage generator 114 for generating a high voltage in the collector 113. The collector 113 is disposed at a predetermined distance from the nozzle 111a in order to accumulate the polymer spinning solution injected from the collector 113, (110, 110 ').

In the method of manufacturing a nanomembrane through the electrospinning device 100, the polymer spinning solution filled in the spinning liquid main tank 120 is continuously and quantitatively supplied to the nozzle block 111 to which a high voltage is applied through the metering pump, The polymer spinning solution supplied to the nozzle block 111 is radiated and focused on the collector 113 to which a high voltage is applied on the base material 115 conveyed in the electrospinning device 100 through the nozzle 111a A nanomembrane is laminated.

At this time, in the electrospinning apparatus 100, the substrate 115 is conveyed by the conveyance belt 116a rotated between the conveyance rollers 116b.

When the nanomembrane prepared by electrospinning the polymer spinning solution through the electrospinning device as described above is applied to a filter material used in an industrial field, the basis weight of the entire nanomembrane used as the filter material must be constant and uniform, It is possible to produce and sell the products satisfactorily. According to the filter used in the gas turbine of the thermal power plant, depending on the direction of the air flow, the position of the air inflow portion, the direction of the air exhaust portion and the position of the exhaust portion, It is necessary that the basis weight of the nanomembrane constituting the filter membrane is not necessarily constant. On the other hand, in the filter section where air filtration is active, the basis weight of the nanomembrane must be controlled to improve the air filtering efficiency, Since the air flow rate is not so large, the basis weight of the nanomembrane is greatly adjusted There is a need for a design that is more durable than the air filtration side.

Thus, the basis weight of the nanomembrane is required to be a nanomembrane material having different basis weights on the same nanomembrane depending on the positions of the air inlet and outlet.

SUMMARY OF THE INVENTION The present invention has been conceived in order to solve the above problems, and it is an object of the present invention to provide a nozzle tube body having a plurality of nozzles in the form of pins in the longitudinal direction of a base material supplied in a unit of an electrospinning device, A nanomembrane electrospinning device capable of forming a nanomembrane having a different basis weight in the longitudinal direction of the same plane of the substrate by controlling the amount of the polymeric spinning liquid supplied and controlling the amount of spinning of the polymer spinning solution electrospun through each nozzle The purpose is to provide.

Further, the present invention is characterized in that a plurality of nanomembranes having different basis weights are formed on the same plane of the substrate by individually or simultaneously controlling each of the nozzle bodies and the nozzles, and at the same time, a nano- And to provide a nanomembrane electrospinning device in which a basis weight is variably laminated in the longitudinal direction on the same plane of the base material such as a laminate of membranes.

The present invention can be applied to both the bottom-up electrospinning device and the top-down electrospinning device, and it is possible to control the amount of radiation of the polymer spinning solution electrospun in the longitudinal direction on the same plane of the substrate, It is possible to form nanomembranes having different basis weights as well as to form nanomembranes having different basis weights, thereby making it possible to manufacture nanomembranes having various weights required in the field, and to produce nanomembranes capable of mass production And an object of the present invention is to provide an electrospinning device.

According to an aspect of the present invention, there is provided an electrospinning device for manufacturing a nanomembrane, the nozzle tube body including a plurality of nozzle-shaped pins arranged in a unit, arranged in a plurality of A nozzle block to be installed; A spinning liquid main tank filled with the polymer spinning solution and connected to the nozzle body of the nozzle block to supply the polymer spinning solution; A collector spaced apart from the nozzle to collect the polymer spinning solution injected from the nozzles of each nozzle tube; A voltage generating device for generating a voltage in the collector; And an auxiliary transfer device for transferring the substrate; Each nozzle body is connected to the spinning liquid main tank through a solution supply pipe, and a supply amount adjusting means is provided in the solution supply pipe to adjust and control the supply amount of the polymer spinning solution supplied from the spinning solution main tank to the nozzle tube , Each nozzle is connected to a solution supply pipe of a nozzle tube by a nozzle supply pipe and a radiation amount adjusting means is provided in the nozzle supply pipe to supply the nozzle to the nozzle and control the amount of radiation of the polymer solution to be radiated, Characterized in that nano-membranes having different basis weights are laminated and formed on the same plane in the longitudinal direction of the base material during electrospinning.

Here, the supply amount adjusting means provided in the solution supply pipe is composed of a supply valve that is controlled to be openable and closable, and only the specific nozzle body of each nozzle body connected to the spinning liquid main tank by the opening and closing of the supply valve And the polymer spinning solution is selectively supplied.

In addition, the spinning amount adjusting means provided in the nozzle supply pipe is composed of a nozzle valve which is controlled to be openable and closable, and only one of the nozzles connected to the nozzle supply pipe to the solution supply pipe by the nozzle valve opens the nozzle And is electrified and electrospun.

In addition, the supply amount adjusting means of the solution supply pipe is composed of a supply valve which can be controlled to be openable and closable, and only a specific nozzle body of each nozzle body connected to the spinning liquid main tank by the opening and closing of the supply valve main tank, The nozzle is connected to the nozzle supply pipe by the opening and closing of the nozzle valve, and only the specific nozzle among the nozzles connected to the nozzle supply pipe is connected to the high- The spinning liquid is selectively supplied to be electrospun, and the opening and closing of the supply valve and the nozzle valve are individually or simultaneously controlled.

As described above, according to the present invention having the above-described structure, a plurality of nozzle tubes are arranged in the longitudinal direction of the nozzle block, and the amount of supply of the polymer solution to be supplied to each nozzle tube, It is possible to manufacture nanomembranes having various basis weights on the same plane of the substrate by controlling the amount of the solution used, and it is possible to differently form the load ratios of the filter parts at the time of manufacturing the nanomembrane, It is possible to produce nanomembranes having a uniform thickness and thickness, and mass production is possible.

It is another object of the present invention to provide a nanomembrane which is capable of producing a nanomembrane different in basis weight in the longitudinal direction of the base material, thereby improving the moisture permeation and waterproof efficiency, improving the durability and improving the productivity of the nanomembrane And so on.

1 is a side view schematically showing a nanomembrane electrospinning device,
2 is a plan view schematically showing a nozzle body arranged in a nozzle block of a nanomembrane electrospinning apparatus according to the present invention,
FIG. 3 is a perspective view schematically showing a nozzle body arranged in a nozzle block of a nanomembrane electrospinning apparatus according to the present invention. FIG.
FIG. 4 is a side view schematically showing a nozzle body arranged in a nozzle block of the nanomembrane electrospinning apparatus according to the present invention. FIG.
FIGS. 5 to 6 show an operation process of electrospinning the polymer spinning solution on the same plane of the base material through the nozzles of the respective nozzle tubes of the nanomembrane electrospinning apparatus according to the present invention (the nozzles shown by broken lines in FIG. And the nozzle indicated by the broken line in Fig. 6 is located at the lower portion of the substrate).

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The present invention is not limited to the scope of the present invention, but is merely an example, and various modifications can be made without departing from the technical gist of the present invention.

FIG. 2 is a plan view schematically showing a nozzle body arranged in a nozzle block of a nanomembrane electrospinning apparatus according to the present invention, and FIG. 3 is a cross-sectional view of a nozzle body of a nanomembrane electrospinning apparatus according to the present invention, 4 is a side view schematically showing a nozzle body arranged in a nozzle block of a nanomembrane electrospinning apparatus according to the present invention, and FIGS. 5 to 6 are views each showing a side view of the nanomembrane electrospinning apparatus according to the present invention. FIG. 2 is a plan view schematically showing an operation process of electropolishing the polymer spinning solution on the same plane of the substrate through a nozzle of a nozzle tube; FIG.

Referring to FIG. 1, an electrospinning apparatus 100 according to the present invention includes a bottom-up electrospinning apparatus and at least one unit 110 or 110 '. In one embodiment of the present invention, the electrospinning device 100 is a bottom-up electrospinning device, but it may also be a top-down electrospinning device.

Here, the units 110 and 110 'include a spinning liquid main tank 120 filled with a polymer spinning solution and a metering pump (not shown) for supplying a polymer spinning solution filled in the spinning solution main tank 120 in a fixed amount And a plurality of nozzle tubes 112 having a plurality of nozzles 111a in the form of a pin are arranged in the longitudinal direction of the substrate 115 so as to discharge the polymer solution in the spinning solution main tank 120 A collector 113 disposed at a predetermined interval from the nozzle 111a to collect the polymer spinning solution injected from the nozzle block 111 and the nozzle 111a and a voltage generator 113 for generating a high voltage to the collector 113, And a device 114. [

As described above, the nanomembrane electrospinning device 1 is continuously supplied with a predetermined amount of the polymer spinning solution filled in the spinning liquid main tank 120 into the nozzle block 111 to which a high voltage is applied through the metering pump, The polymer spinning solution supplied to the block 111 is radiated and focused onto the substrate 113 transferred in the electrospinning device through the nozzle 111a on the collector 113 with a high voltage applied thereto, do.

At least one or more units 110 and 110 'provided in the nanomembrane electrospinning device 1 are sequentially spaced apart from each other by a predetermined interval and the polymer spinning solution is supplied through the units 110 and 110' Thereby producing a nanomembrane.

The nozzle block 111 of the electrospinning device 100 includes a plurality of nozzle tubes 112 arranged in the longitudinal direction thereof and a spinning liquid main tank for supplying a polymer spinning solution to the nozzle tubes 112 120 are connected to each other.

The nozzle tubes 112a, 112b, 112c, 112d, 112e, 112f, 112g, 112h, and 112i, which are linearly formed on the upper surface of the nozzle block 111 and have a plurality of nozzles 111a linearly, A plurality of nozzle tubes 112a, 112b, 112c, 112d, 112e, 112f, 112g, 112h and 112i are arranged in the longitudinal direction of the substrate 115 in the longitudinal direction of the substrate 115, And the polymer spinning solution filled in the spinning solution main tank 120 is supplied.

Here, the nozzle tubes 112a, 112b, 112c, 112d, 112e, 112f, 112g, 112h, and 112i are connected to the spinning solution main tank 120 through a solution supply tube 121, A plurality of nozzle tubes 112a, 112b, 112c, 112d, 112e, 112f, 112g, 112h, 112i and a spinning liquid main tank 120 are branched.

At this time, a supply amount adjusting means (not shown) is connected to the solution supply pipe 121, which is communicated to the nozzle tubes 112a, 112b, 112c, 112d, 112e, 112f, 112g, 112h, 112i in the spinning liquid main tank 120, And the supply amount adjusting means is composed of a supply valve 122.

A supply valve 122 is provided in the solution supply pipe 121 which is communicated to each nozzle body 112a, 112b, 112c, 112d, 112e, 112f, 112g, 112h, 112i in the spinning liquid main tank 120 112b, 112c, 112d, 112e, 112f, 112g, 112h, 112i in the spinning liquid main tank 120 by the supply valves 122, And controlled.

That is, when the polymer spinning solution is supplied to the nozzle tubes 112a, 112b, 112c, 112d, 112e, 112f, 112g, 112h, 112i from the spinning solution main tank 120 through the solution supply tube 121, By the opening and closing of the supply valve 122 provided in the solution supply pipe 121 for supplying the main tank 120 and the nozzle tubes 112a, 112b, 112c, 112d, 112e, 112f, 112g, 112h, The nozzle tubes 112b, 112d, 112f, 112g, 112h, 112i at specific positions among the nozzle tubes 112a, 112b, 112c, 112d, 112e, 112f, 112g, 112h, 112i arranged in the nozzle block 111 112b, 112c, 112d, 112e, 112f, 112g, 112h, 112i, 112f, 112g, 112h, 112i, 112f, 112h, 112h, 112h, The supply of the polymer solution is controlled and controlled.

For this purpose, the supply valve 122 is preferably controllably connected to a control unit (not shown). Preferably, the opening and closing of the supply valve 122 is automatically controlled by the control unit. However, It is also possible that the opening and closing of the supply valve 122 is manually controlled.

112b, 112c, 112d, 112e, 112f, 112g, 112h, 112i in the spinning liquid main tank 120. However, The supply amount adjusting means may be composed of various other structures and means, but the present invention is not limited thereto.

The solution supply pipe 121 is connected to the spinning solution main tank 120 and the nozzle tubes 112a, 112b, 112c, 112d, 112e, 112f, 112g, 112h and 112i, A supply valve 122 is provided at each of the nozzles 112a, 112b, 112c, 112d, 112e, 112f, 112g, 112h, 112i in the spinning liquid main tank 120 to supply a plurality of 112b, 112c, 112d, 112e, 112f, 112g, 112h, 112i arranged in the nozzle block 111 by opening the specific supply valve 122 of the supply valve 122, The nozzle tubular body 112a (112a, 112b, 112d, 112f, 112g, 112h, 112i) at the specific position among the nozzle tubular bodies provided in the nozzle block 111 by supplying the polymer solution, , 112c, and 112e of the spinning liquid main tank 120 are blocked by the opening and closing of the supply valve 122, The supply of the polymer spinning solution to be supplied to the (112a, 112b, 112c, 112d, 112e, 112f, 112g, 112h, 112i) is adjusted and controlled.

The polymer spinning solution supplied to the nozzle tubes 112a, 112b, 112c, 112d, 112e, 112f, 112g, 112h, 112i through the solution supply tube 121 in the spinning solution main tank 120 flows through the solution supply tube 121, 112b, 112c, 112d, 112e, 112f, 112g, 112h, 112i through a nozzle supply pipe 125 which is connected to the nozzles 121a.

That is, the nozzles 111a provided in the solution supply pipe 121 and the nozzle tubes 112a, 112b, 112c, 112d, 112e, 112f, 112g, 112h and 112i are provided as nozzle supply pipes 125, The supply pipe 125 is branched so as to correspond to the number of the nozzles 111a.

Here, the nozzle supply pipe 125 is provided with a dose adjusting means (not shown), and the dose adjusting means comprises a nozzle valve 126.

The supply of the polymer solution to be supplied to each nozzle 111a from the nozzle supply pipe 125 is controlled individually by the nozzle valve 126 by the opening and closing of the nozzle valve 126, Preferably, the nozzle valve 126 is controllably connected to a control unit (not shown), and the opening and closing of the nozzle valve 126 is automatically controlled by the control unit. However, It is also possible that the opening and closing of the nozzle valve 126 are manually controlled.

In the embodiment of the present invention, if the amount of the spinning solution of the polymer spinning solution is easily controlled and controlled after being supplied to the nozzle 111a from the nozzle tube 112, The means for controlling the amount of radiation may be composed of various other structures and means, but is not limited thereto.

According to the structure described above, the solution supply pipe 121 and the nozzles 111a are connected to each other, and the nozzle valve 126 is provided in the nozzle supply pipe 125, Of the plurality of nozzle valves 126 when supplying the polymer spinning solution to the respective nozzles 111a through the respective nozzle tubes 112a, 112b, 112c, 112d, 112e, 112f, 112g, 112h, The polymer spinning solution is selectively discharged only from the nozzles 111a at specific positions among the nozzles 111a provided in the nozzle tubes 112a, 112b, 112c, 112d, 112e, 112f, 112g, 112h, Or a specific nozzle valve 126 is closed so that the nozzles 111a provided in the nozzle tubes 112a, 112b, 112c, 112d, 112e, 112f, 112g, 112h, The nozzle tubular body 112a, the tubular body 112a, the tubular body 112a, and the nozzle body 112b are separated from the spinning liquid main tank 120 by the nozzle valve 126, 112b, 112c, 112d, 112e, 112f, 112g, 112h, and 112i, the supply of the polymer spinning solution supplied to each nozzle 111a is individually controlled and controlled.

In an embodiment of the present invention, the solution supply pipe 121 is provided with a supply valve 122 so that the nozzle tubes 112a, 112b, 112c, 112d and 112e of the nozzle block 111 in the spinning liquid main tank 120 112b, 112c, 112d, 112f, 112g, 112h, and 112i, and a nozzle valve 126 is provided in the nozzle supply pipe 125 to adjust the supply amount of the polymer solution, 112b, 112c, 112d, 112e, 112f, 112c, 112d, 112e, 112f, 112f, 112g, 112h, 112i to regulate and control the radiation amount of the polymer spinning solution which is radiated through each nozzle 111a, 112a, 112b, 112g, 112h, and 112i, the nano membranes having different weights in the longitudinal direction of the base material 115 are stacked by the polymer spinning solution electrospunning from the respective nozzles 111a of the nozzle blocks 111, 111a are arranged in the nozzle array 111a, the nozzles 111a are directly controlled and controlled individually The nanomembranes having different weights may be stacked in the longitudinal direction of the base material 115 by controlling and controlling the amount of the spinning liquid of the polymer spinning solution which is electrospun through the respective nozzles 111a, but the present invention is not limited thereto.

The nozzle tubes 112a, 112b, 112c, 112d, 112e, 112f, 112f, 112f, 112f, 112f, 112f, 112f, 112b, 112c, 112d, 112h, 112i, and the nozzles 111a of the nozzle tubes 112a, 112b, 112c, 112d, 112e, 112f, 112g, 112h, 112i. 112b, 112c, 112d, 112e, 112f, 112g, 112h, 112i and the nozzle tubes 112a, 112b, 112c, 112d The nano membranes 115a having a basis weight of 50 to 150 nm are laminated and formed on one surface of the substrate 115 in the longitudinal direction by controlling the nozzles 111a of the substrates 115, 112e, 112f, 112g, 112h, A nanomembrane 115b having a basis weight of 150 to 300 nm is laminated on the surface in the longitudinal direction of the substrate 115, A plurality of nanomembranes 115a, 115b, and 115c having different weights may be formed on the same plane in the longitudinal direction of the base material 115, such as by forming a nanomembrane 115c having a thickness of 300 to 500 nm.

As described above, by controlling the nozzle body of the nozzle block 111 and the nozzles 111a of the nozzle bodies 112a, 112b, 112c, 112d, 112e, 112f, 112g, 112h and 112i, On the same plane in the longitudinal direction, nanomembranes having three basis weights differing in basis weight from each other are laminated.

Meanwhile, in the embodiment of the present invention, three types of nanomembranes having different basis weights are laminated on the same plane in the longitudinal direction of the substrate 115, but the nozzle tubes 112a and 112b of the nozzle block 111 112b, 112c, 112d, 112e, 112f, 112g, 112h, 112i of the nozzle tubes 112a, 112b, 112c, 112d, 112b, 112c, 112d, 112e, 112f, 112g, 112g, 112g, 112g, 112g, 112g, 112g, 112g, 112g, 112h and 112i and the nozzles 111a of the nozzle tubes 112a, 112b, 112c, 112d, 112e, 112f, 112g, 112h and 112i are controlled to form four kinds It is also possible to form the nanomembranes having different basis weights at the same time, but the present invention is not limited thereto.

The material of the polymer spinning solution to be filled in the spinning solution main tank 120 is not limited and may be selected from the group consisting of polypropylene (PP), polyethylene terephthalate (PET), polyvinylidene fluoride, nylon, poly (PLA), polybutylene terephthalate (PBT), polyvinyl butyral, polyvinyl chloride, polyethyleneimine, polyolefin, polylactic acid (PLA), polyvinyl acetate, polymethyl methacrylate, polyacrylonitrile ), Polyvinyl acetate (PVAc), polyethylene naphthalate (PEN), polyamide (PA), polyvinyl alcohol (PVA), polyethylene imide (PEI), polycaprolactone (PCL) (PP) materials and heat-resistant polymer materials such as polyamide, polyimide, polyamideimide, poly (meta-phenylene isophthalamide), polysulfone, pole Aromatic polyesters such as polyetheretherketone, polyetherimide, polyethylene terephthalate, polytrimethylene terephthalate and polyethylene naphthalate, polytetrafluoroethylene, polydiphenoxaphospazene, polybis [2- (2-methoxy Methoxyphenyl) ethoxy) phosphazene], polyurethane copolymers including polyurethane and polyether urethane, cellulose acetate, cellulose acetate butyrate, cellulose acetate propionate, and the like, are commercially available Is preferably used.

Hereinafter, the operation of the nanomembrane electrospinning apparatus according to the present invention will be described with reference to FIGS. 5 to 6. FIG.

First, the base material 115 is introduced and supplied into the units 110 and 110 'of the electrospinning device 100 through the feed rollers (not shown) provided at the ends of the electrospinning device 100 according to the present invention , The polymer spinning solution is electrospun in the unit (110, 110 ') to form a nanomembrane.

At this time, the base material 115 is conveyed by the conveying belt 116a rotated between the conveying rollers 116b.

The substrate 115 that is fed into and supplied to the units 110 and 110 'of the electrospinning device 100 through the supply roller (not shown) is positioned on the collector 113, A high voltage is generated on the collector 113 through the nozzle 111a provided in the nozzle tube 112 of the nozzle block 111 and is supplied onto the substrate 115 on the collector 113 on which the high voltage is generated, The polymer spinning solution supplied from the spinning station 120 is electrospun.

The polymer spinning solution supplied from the spinning solution main tank 120 to the nozzle block 111 is supplied to the spinning liquid main tank 120 and the nozzle tubes 112a, 112b, 112c, and 112c of the nozzle block 111, 112b, 112c, 112d, 112e, 112f, 112g, 112h, 112h, 112d, 112e, 112f, 112g, 112h, 112i through the solution supply pipe 121, And the spray liquid main tank 120 supplied to the nozzle tubes 112a, 112b, 112c, 112d, 112e, 112f, 112g, 112h and 112i is supplied to the solution supply pipe 121, Is supplied to the nozzle 111a through the nozzle 125 and then is electrospun through the nozzle 111a to form a nanomembrane on the substrate 115. [

112b, 112c, 112d, 112e, 112f, 112g, 112h, 112i arranged in the longitudinal direction of the base material 115 through the solution supply pipe 121 in the spinning liquid main tank 120, Is controlled by the opening and closing of the supply valve 122 provided in the solution supply pipe 121 branched from the spinning liquid main tank 120 and the nozzle tubes 112a and 112b 112b, 112c, 112d, 112e, 112f, 112g, 112h, 112h, 112d, 112e, 112f, 112g, 112h, 112i of the polymer spinning solution, And the nozzle valve 126 provided in the nozzle supply pipe 125 branched from the solution supply pipe 121 of the nozzles 112a and 112i.

The supply amount of the polymer solution to be supplied to the nozzle tubes 112a, 112b, 112c, 112d, 112e, 112f, 112g, 112h, and 112i and the supply amount of the polymer solution for the nozzle 111a are controlled by the supply valve 122 and the nozzle valve 126, The spinning amount of the polymer spinning solution that is electrospun is controlled through the spin coating, thereby forming a laminate of nanomembranes having different basis weights on the same plane in the longitudinal direction of the base material 115.

For example, one of the nozzle tubes 112a, 112b, 112c, 112d, 112e, 112f, 112g, 112h, and 112i arranged in the longitudinal direction of the base material 115, A solution supply pipe 121 connected to the nozzle tubes 112a and 112c provided on both sides of the supply valve 122 provided in the solution supply pipe 121 of the three nozzle tubes 112a, 112b, The supply valve 122 is closed and the supply valve 122 of the solution supply pipe 121 connected to one nozzle tube 112b provided at the center side thereof is opened to supply the solution to be supplied from the spinning solution main tank 120 The nozzle nozzles 112 of the nozzle supply pipe 125 branched from the solution supply pipe 121 for supplying the polymer solution for one time to the nozzle body 112b and supplying the polymer solution through the nozzle body 112b, Is opened and the polymer spinning solution supplied to the one nozzle body 121b is supplied to all the nozzles 111a, and the substrate 1 15), a nano-membrane 115a having a low basis weight of 50 to 150 nm is laminated.

Of the nozzle tubes 112a, 112b, 112c, 112d, 112e, 112f, 112g, 112h, 112i arranged in the longitudinal direction of the base material 115, The supply valve 122 of the solution supply pipe 121 connected to the nozzle tube body 112e provided at the center of the supply valve 122 provided in the solution supply pipe 121 of the three nozzle tube bodies 112d, 112e, And the supply valve 122 of the solution supply pipe 121 connected to the two nozzle tubes 112d and 112f provided on both sides thereof is opened to open the supply valve 122 of the polymer solution for supplying the spinning solution main tank 120 Of the nozzle supply pipe 125 branched from the solution supply pipe 121 for supplying the polymer solution to the two nozzle pipes 112d and 112f and supplying the polymer solution for the polymer solution to the two nozzle pipes 112d and 112f, 126 are opened to supply the polymer spinning solution supplied to the two nozzle tubes 112d, 112f to all the nozzles 111a To form the base 115 nm membrane (115b) having a basis weight of 150 to 300nm by electrospinning a polymer spinning solution onto the stack.

Of the nozzle tubes 112a, 112b, 112c, 112d, 112e, 112f, 112g, 112h, 112i arranged in the longitudinal direction of the base material 115, The supply valve 122 provided in the solution supply pipe 121 of each of the nozzle tubes 112g, 112h and 112i is opened to discharge the polymer solution used in the spinning solution main tank 120 to the three nozzle tubes 112g and 112h And 112i of the nozzle supply pipe 125 branched from the solution supply pipe 121 for supplying the polymer solution with the three nozzle tubes 112g, 112h and 112i The polymer spinning solution supplied to each of the nozzle tubes 112g, 112h and 112i is supplied to all the nozzles 111a, and the polymer spinning solution is electrospun on the substrate 115 to form nano- And the membrane 115c is laminated.

In an embodiment of the present invention, the angle of the solution supply pipe 121 for supplying the polymer solution to the nozzle tubes 112a, 112b, 112c, 112d, 112e, 112f, 112g, 112h, 112i in the spinning solution main tank 120 The nano membranes 115a, 115b and 115c having different weights are laminated on the same plane in the longitudinal direction of the substrate 115 by controlling the supply valve 122. However, It is also possible to form the nano-membranes 115a, 115b, and 115c having different basis weights on the same plane in the longitudinal direction of the substrate 115 by controlling the nozzle valve 126 of the nano-

For example, a plurality of nozzle tubes 112a, 112b, 112c, 112d, 112e, 112f, 112g, 112h, 112i arranged at a plurality of positions in the longitudinal direction of the base material 115, The supply valve 122 provided in the solution supply pipe 121 of the three nozzle tubes 112a, 112b and 112c is opened so that the polymer solution is supplied from the spinning solution main tank 120 to the three nozzle tubes 112a 112b and 112c of the nozzle tubes 112a and 112c and the solution supply tubes 121 of the nozzle tubes 112a and 112c provided on both sides of the three nozzle tubes 112a, 112b and 112c All of the nozzle valves 126 are closed and the nozzle valve 126 of the nozzle supply pipe 125 branched from the solution supply pipe 121 of one nozzle tube body 112b provided on the center side thereof is opened, The polymer spinning solution is electrospun onto the base material 115 supplied with the polymer spinning solution by the nozzles 111a provided in the nozzle tube 112b, And a nanomembrane 115a having a low basis weight of 150 nm is laminated.

Of the nozzle tubes 112a, 112b, 112c, 112d, 112e, 112f, 112g, 112h, 112i arranged in the longitudinal direction of the base material 115, The supply valve 122 provided in the solution supply pipe 121 of each of the three nozzle tubes 112d, 112e and 112f is opened so that the polymer solution is supplied from the spinning solution main tank 120 to the three nozzle tubes 112d, 112e and 112f of the nozzle supply pipe 121 branched from the solution supply pipe 121 of the nozzle body 112e provided at the center of the three nozzle pipes 112d, 112e and 112f, The nozzle valve 126 of the nozzle supply pipe 125 branched from the solution supply pipe 121 of the two nozzle tubes 112d and 112f provided on both sides thereof is opened to open the nozzle valve 126, The polymer spinning solution is supplied to each of the nozzles 111a provided in the nozzle tubes 112d and 112f, and then the polymer spinning solution To form a nano-layered membrane (115b) having a basis weight of 150 to 300nm by electrospinning.

Of the nozzle tubes 112a, 112b, 112c, 112d, 112e, 112f, 112g, 112h, and 112i arranged in the longitudinal direction of the base material 115, The supply valve 122 provided in the solution supply pipe 121 of each of the nozzle tubes 112g, 112h and 112i is opened to discharge the polymer solution used in the spinning solution main tank 120 to the three nozzle tubes 112g and 112h And 112i of the nozzle supply pipe 125 branched from the solution supply pipe 121 for supplying the polymer solution with the three nozzle tubes 112g, 112h and 112i The polymer spinning solution supplied to each of the nozzle tubes 112g, 112h and 112i is supplied to all the nozzles 111a, and the polymer spinning solution is electrospun on the substrate 115 to form nano- And the membrane 115c is laminated.

The supply valve 122 of the solution supply pipe 121 for supplying the polymer solution for the polymer solution to the nozzle body 112 in the spinning liquid main tank 120 is controlled to form the same plane It is possible to laminate the nanomembranes having different basis weights on the surface of the substrate 115 as well as to control the nozzle valve 126 of the nozzle supply pipe 125 branched on the solution supply pipe 121, The nanomembranes 115a, 115b, and 115c having different basis weights can be stacked on one another.

The supply valve 122 of the solution supply pipe 121 for supplying the polymer solution to the nozzle body 112 in the spinning solution main tank 120 is controlled to supply the polymer solution in the longitudinal direction The nano membranes 115a, 115b and 115c having different basis weights are laminated on the same plane or the nozzle valve 126 of the nozzle supply pipe 125 branched on the solution supply pipe 121 is controlled, 115b, and 115c having different weights on the same plane in the longitudinal direction of the spinneret 120. The solution supply pipe (not shown) for supplying the polymer spinning solution from the spinning solution main tank 120 to the nozzle tube 112 And the nozzle valve 126 of the nozzle supply pipe 125 branched from the solution supply pipe 121 to control the supply valve 122 of the nozzle 115 to be different on the same plane in the longitudinal direction of the substrate 115 And the nanomembranes 115a, 115b, and 115c having a basis weight 115b, and 115c having different weights may be formed on a specific region on the same plane in the longitudinal direction of the base material 115 and a specific region of the base material 115, or may be formed by laminating a plurality of nanomembranes 115a, The nanomembranes 115a, 115b, and 115c having different weights in a specific shape and specific shape on the same plane may be laminated, but the present invention is not limited thereto.

The supply valve 122 of the solution supply pipe 121 or the nozzle valve 126 of the nozzle supply pipe 125 may be individually controlled or the supply valve 122 of the solution supply pipe 121 may be separately controlled, The nozzle valve 126 of the nozzle supply pipe 125 can be simultaneously controlled to manufacture a nanomembrane having various and different basis weights.

112b, 112c, 112d, 112e, 112f (112a, 112b, 112c, 112d, 112e, 112f) arranged in the longitudinal direction of the base material 115 are controlled by individually controlling the opening and closing of the nozzle valve 126 of the nozzle supply pipe 125, 112b, 112g, 112h, and 112i, and supplies the polymer spinning solution to only the specific nozzles 111a of the plurality of nozzles 111a provided in the nozzles 111a, It is also possible to laminate nanomembranes having different basis weights in the longitudinal direction on the same plane.

At this time, the polymer solution is supplied from each of the nozzles 111a provided in the nozzle tubes 112a, 112b, 112c, 112d, 112e, 112f, 112g, 112h, 112i arranged in the longitudinal direction of the substrate 115 And the number and shape of the specific nozzles 111a for cutting off the supply of the polymeric spinning liquid can be variously changed and can be variably controlled and controlled.

On the other hand, when electrospinning the polymer spinning solution filled in the spinning solution main tank 120, the nanomembranes 115a, 115b, and 115c having different weights on the same plane in the longitudinal direction of the base material 115 are laminated 112b, 112c, 112d, 112e, 112f, 112g, 112h, 112i or 112j connected to the spinning liquid main tank 120, or to control the feeding time of the substrate 115 to be slow or stopped, The nozzles 111a are sequentially closed so that the nano-membranes 115a, 115b, and 115c having different weights are formed on the base material 115 in a laminated manner.

That is, the polymer spinning solution filled in the spinning liquid main tank 120 on the same plane in the longitudinal direction of the substrate 115 to be fed into and fed to the electrospinning device 100, , It is necessary to control so that the transfer time of the substrate 115 is slowed or stopped so that the electrospun polymer flushing liquid is overlapped or not mixed so that the basis weights are different from each other or that the nozzle tubes 112a 112c, 112d, 112g in the direction opposite to the advancing direction of the base material 115 of the polymer solution 1, 112b, 112c, 112d, 112e, 112f, 112g, 112h, 112i, 112d, 112g, 112g in the direction opposite to the traveling direction of the substrate 115 among the nozzle tubes 112a, 112b, 112c, 112d, 112e, 112f, 112g, 112h, The nozzle 111a of the nozzle 111a is sequentially closed to spray the polymer solution However, by forming such that the substrate 115 is different nano-membrane having a basis weight in the (115a, 115b, 115c) are laminated.

By controlling the polymer spinning solution supplied to the conveying speed of the substrate 115 or the nozzle tubes 112a, 112b, 112c, 112d, 112e, 112f, 112g, 112h and 112i, The lamination of the membranes 115a, 115b, and 115c is facilitated.

Meanwhile, in one embodiment of the present invention, the nozzle tubes 112a, 112b, 112c, 112d, 112e, 112f, 112g, 112h, 112i arranged in the longitudinal direction of the base material 115 are controlled as one group by three 112b, 112c, 112d, 112e, 112f (112a, 112b, 112c, 112d, 112e, 112f, 112c, 112d, 112b, 112c, 112d, 112h, and 112i are controllably connected to one group by two, or the nozzle tubes 112a, 112b, 112c, 112d, 112e, 112f, 112g, 112h, But are not limited to, a structure in which nanomembranes having different basis weights are stacked on the same plane in the longitudinal direction of the substrate 115 so as to be laminated.

In the embodiment of the present invention, nine nozzle tubes 112a, 112b, 112c, 112d, 112e, 112f, 112g, 112h and 112i are arranged in the nozzle block 111, 112b, 112c, 112d, 112h, 112i, 112b, 112c, 112d, 112e, 112f, 112g, 112h, 112i and the number of nozzles 111a provided in the nozzle tubes 112a, 112b, The number may be variously changed, but is not limited thereto.

In an embodiment of the present invention, the opening and closing of the supply valve 122 of the solution supply pipe 121 may be controlled or the opening and closing of the nozzle valve 126 of the nozzle supply pipe 125 may be controlled, 112b, 112c, 112d, 112e (112a, 112b, 112c, 112d, 112e) by controlling the operation of the nozzle tubes 112a, 112b, 112c, 112d, 112e, 112f, 112g, 112h, 112i and the nozzles 111a of the nozzle tubes 111, 112f, 112g, 112h, and 112i, and the spinning amount of the polymer spinning solution that is electrosprayed through the nozzle 111a are adjusted so that the nanomembranes of different weights are laminated at the same time, It is preferable to control the widths of the nanomembranes having different basis weights by controlling the opening and closing of the tubes 112a, 112b, 112c, 112d, 112e, 112f, 112g, 112h, 112i and the nozzle 111a, Not limited.

The supply amount of the polymer spinning solution supplied to each of the nozzle tubes 112a, 112b, 112c, 112d, 112e, 112f, 112g, 112h, and 112i and the emission amount of the polymer spinning solution electrospun in the nozzle 111a are controlled and controlled The width of the nanomembrane having a different basis weight in the longitudinal direction on the same plane of the base material 115 through the nozzle 111a or the radial and radial portions of the nanomembrane having different basis weights can be variably controlled.

In one embodiment of the present invention, the electrospinning apparatus 100 is applied to the bottom-up electrospinning apparatus. However, it is also possible that the electrospinning apparatus 100 according to the present invention is applied to the bottom- It is also possible to apply the present invention to an electrospinning apparatus for an uplink and a downlink.

By the above-described structure, it is possible to control and control the radiation amount of the polymer spinning solution electrified on the substrate 115 through the electrospinning device 100 according to the present invention, It is possible to laminate a nanomembrane having different basis weights in a specific region and a specific region, and thus it is easy to manufacture various nanomembranes.

While the present invention has been particularly shown and described with reference to specific embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims. Anyone with it will know easily.

100: electrospinning device 110, 110 ': unit
111: nozzle block 111a: nozzle
112: nozzle tube body
112a, 112b, 112c, 112d, 112e, 112f, 112g, 112h, 112i:
113: collector 114: voltage generating device
115: substrate 115a, 115b, 115c: nanomembrane
116a: conveying belt 116b: conveying roller
120: spinning liquid main tank 121: solution supply pipe
122: supply valve 125: nozzle supply pipe
126: Nozzle valve

Claims (4)

An electrospinning device for producing a nanomembrane,
A nozzle block installed in the unit, wherein a plurality of nozzle tubes having a plurality of nozzles in the form of pins are arranged in a longitudinal direction of the base plate;
A spinning liquid main tank filled with a polymer spinning solution and connected to a nozzle body of the nozzle block to supply a polymer spinning solution;
A collector spaced apart from the nozzles in order to accumulate the polymer spinning solution injected from the nozzles of the nozzle tubes;
A voltage generator for generating a voltage in the collector; And
An auxiliary transfer device for transferring the substrate;
Wherein each of the nozzle tubes is connected to the spinning liquid main tank through a solution supply pipe and the solution supply pipe is provided with a supply amount adjusting means so that the supply amount of the polymer spinning solution supplied from the spinning solution main tank to the nozzle tube is controlled and adjusted. And the radiation amount of the polymer spinning solution is adjusted and controlled by supplying the spinning solution to the nozzles in the nozzle tube and controlling the spinning amount of the polymer spinning solution, A nano membrane having a different basis weight is laminated on the same plane in the longitudinal direction of the substrate when electrospinning the polymer spinning solution,
Wherein the supply amount adjusting means provided in the solution supply pipe comprises a supply valve that is openably and closably controlled so that only a specific nozzle body of each nozzle body connected to the spinning liquid main tank by the opening and closing of the supply valve The polymeric spinning solution is selectively supplied,
The spinning amount adjusting means provided in the nozzle supply pipe is composed of a nozzle valve which is controlled to be openable and closable so that only a specific nozzle among the nozzles connected to the nozzle supply pipe to the solution supply pipe by the nozzle valve opens the solution Selectively supplied and electrospun,
Wherein the supply amount adjusting means of the solution supply pipe is composed of a supply valve controlled to be openable and closable, wherein only one of the nozzle tubes, which is connected to the spinning liquid main tank by the opening and closing of the supply valve, And a control unit for controlling the amount of radiation of the nozzle supply pipe to selectively and selectively supply a specific nozzle among the nozzles connected to the nozzle supply pipe to the solution supply pipe by the opening and closing of the nozzle valve, Wherein the polymeric spinning solution is selectively supplied and electrospun, and the opening and closing of the supply valve and the nozzle valve are individually or simultaneously controlled.
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