WO2015020328A1 - Filtre ondulé et procédé de fabrication de celui-ci - Google Patents

Filtre ondulé et procédé de fabrication de celui-ci Download PDF

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Publication number
WO2015020328A1
WO2015020328A1 PCT/KR2014/006697 KR2014006697W WO2015020328A1 WO 2015020328 A1 WO2015020328 A1 WO 2015020328A1 KR 2014006697 W KR2014006697 W KR 2014006697W WO 2015020328 A1 WO2015020328 A1 WO 2015020328A1
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Prior art keywords
nanofibers
pleated filter
integrated
filter
present
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Application number
PCT/KR2014/006697
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English (en)
Korean (ko)
Inventor
황준식
Original Assignee
주식회사 아모그린텍
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Publication of WO2015020328A1 publication Critical patent/WO2015020328A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
    • B01D69/12—Composite membranes; Ultra-thin membranes
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
    • D04H1/76—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres otherwise than in a plane, e.g. in a tubular way
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
    • B01D67/0002—Organic membrane manufacture
    • B01D67/0004—Organic membrane manufacture by agglomeration of particles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
    • B01D67/0002—Organic membrane manufacture
    • B01D67/0004—Organic membrane manufacture by agglomeration of particles
    • B01D67/00043—Organic membrane manufacture by agglomeration of particles by agglomeration of nanoparticles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
    • B01D69/04—Tubular membranes
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
    • D04H1/72—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged
    • D04H1/728—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged by electro-spinning
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/02—Types of fibres, filaments or particles, self-supporting or supported materials
    • B01D2239/025—Types of fibres, filaments or particles, self-supporting or supported materials comprising nanofibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
    • B01D2239/0604—Arrangement of the fibres in the filtering material
    • B01D2239/0631—Electro-spun
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
    • B01D2239/069—Special geometry of layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2323/00—Details relating to membrane preparation
    • B01D2323/39—Electrospinning
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2325/00—Details relating to properties of membranes
    • B01D2325/08—Patterned membranes

Definitions

  • the present invention can increase the filtration area with the pleats of various morphology (morphology), do not need seam sealing (sea sealing), can solve the leakage problem, can be produced by the process automation pleated filter and its manufacture It is about a method.
  • the separator is a material having a selectivity existing between two different materials, and means a material that selectively passes or excludes a certain material. There is no restriction on the structure or material of the membrane, and the state or principle of movement of the material through the membrane, and the material is generally separated if the two materials are isolated from each other and the selective movement of the material through the membrane between them. It can be called
  • classification by separation operation is classified into liquid separation, gas-liquid separation, and gas separation as a classification method according to the state of the target substance to be separated.
  • Liquid separation is classified into micro filtration, ultra filtration, nano filtration, reverse osmosis, etc., depending on the size of the filtration object.
  • the gas separation can be separated in detail according to the type of gas to be separated.
  • the membrane for separating oxygen gas it is classified into oxygen enrichment, and in case of the membrane for separating nitrogen, nitrogen enrichment, hydrogen separation, and dehumidification membrane.
  • the types of membranes are classified into flat membranes, hollow fiber membranes, and tubular membranes, and they are also plate-type, spiral wound, cartridge-type, flat-film cell type, and deposit according to the filter module type. It is classified into a mold, a tube, and the like.
  • Classification by material includes inorganic membrane and organic membrane using polymer. Recently, the inorganic membrane is expanding its use based on the advantages of heat resistance, durability, etc., but most of the commercialized products are occupied by the polymer membrane.
  • filtration means separating two or more kinds of components from a fluid, and means separating undissolved particles, that is, solids.
  • the filtration mechanism can be described as sieving, adsorption, dissolution, and diffusion mechanisms, and most of them are completely dependent on sieving mechanisms except for some separation membranes such as gas separation membranes and reverse osmosis membranes.
  • any material having pores can be used as a filter media
  • representative filter media include nonwovens, fabrics, meshes, and porous membranes.
  • Nonwoven fabrics, fabrics, meshes, etc. are difficult to make pores of less than 1um, so they are limited to the particle filtration area and are used as pretreatment filter concepts.
  • Porous membranes on the other hand, can produce precise and small pores, requiring a wide range of filtration zones such as micro filtration, ultra filtration, nano filtration, reverse osmosis and the highest precision. It is used for the process.
  • Nonwovens, meshes, and fabrics are made of fibers of several micro to hundreds of micro-thick, making it difficult to produce micropores of less than one micro.
  • the web is formed by a random arrangement of fibers, so that it is virtually impossible to make uniform pores.
  • Melt-blown is a non-woven fabric consisting of the finest fibers with a fineness in the range of 1 ⁇ 5um.
  • the pore size before thermal calendering is 6 microns or more and the pore size after calendering is about 3 microns.
  • the average pore size deviation is more than ⁇ 15% from the reference point, and the pores are quite large. As a result, it is difficult to prevent the outflow of pollutants through relatively large pores, so the filter efficiency is low. Therefore, the filter media are used as a pretreatment concept in an inexact filtration process or a microfiltration process.
  • the porous membrane is prepared by a method such as solvent phase transition (NIPS), thermal induction phase transition (TIPS), stretching process, track etching method, sol-gel method, etc.
  • solvent phase transition NIPS
  • TIPS thermal induction phase transition
  • PTFE polytetrafluoroethylene
  • PVDF polyvinylidene fluoride
  • PS polysulfone
  • PS polyethersulfone
  • PES polypropylene
  • PE polyethylene
  • NC nitrocellulose
  • the conventional porous membrane can make precise and small size pores, closed pores and blind pores are inevitably generated in the manufacturing process, so the amount of filtration flow is low, the operating pressure is high, and the filtration life is long. Due to the short problem, high operating cost and frequent filter replacement are pointed out as problems.
  • Korean Patent Publication No. 10-0714219 one end is grounded and melt-spun with a melt spinning machine on a rotating rod of conductive material to form a microfiber layer composed of microfiber yarns, and a constant dielectric constant capable of electrospinning on the microfiber layer
  • a technique for producing a composite fiber filter by laminating a nanofiber layer consisting of nanofiber yarns by electrospinning a polymer resin solution having an electrospinner with an electrospinner is provided, to impart high efficiency and high functionality to the filter, and the microfiber yarn and nano
  • the silver nano component of the fiber layer has the advantage of having an antimicrobial function by intrinsic to the nanofiber yarn, but the composite fiber filter of Korea Patent Publication No. 10-0714219 has a cylindrical shape has a limitation in increasing the filtration area in a limited area, high life And the disadvantage of not implementing a high efficiency filter have.
  • the present inventors continue to study the next-generation filter that can increase the lifespan and increase the efficiency to derive the structural characteristics and method characteristics of the pleated filter that can maximize the filter area at the same size By doing so, the present invention is more economical, usable and competitive.
  • the present invention has been made in view of the problems of the prior art, and an object thereof is to provide a pleated filter capable of maximizing the filtration area within a limited space of the filter and increasing the filtration flow rate and the filtration life.
  • Another object of the present invention is to produce a filter by electrospinning the nanofibers, to provide a pleated filter that can have a very fine pore size to improve the filtration characteristics.
  • Still another object of the present invention is to provide a pleated filter that can produce a filter free from contamination by improving the handleability, which is a disadvantage of the nanofiber, by making the filter directly without making the nanofiber into a sheet form.
  • Another object of the present invention is to provide a pleated filter that can implement a filter having a variety of morphology (morphology).
  • Still another object of the present invention is to provide a pleated filter which can solve the leakage problem since no seam sealing is required and can be manufactured by process automation.
  • an embodiment of the present invention is a cylindrical shape made of nanofibers, which are electrospun and integrated, and has a through hole formed therein, and wrinkles on the sidewall of the through hole and an outer circumferential surface of the cylinder.
  • a pleated filter formed therein.
  • the integrated nanofibers may be composed of a plurality of nanofiber layers having different diameters of the nanofibers.
  • the ion exchange resin particle is disperse
  • the ion exchange resin particles may be dispersed outside the integrated nanofibers.
  • the ion exchange resin may be a porous organic polymer having ion exchange ability or PSDVB (Polystyrene Divinylbenzene) which is a copolymer of polystyrene and divinylbenzene.
  • the integrated nanofibers may be formed by electrospinning the nanofibers in a forming tube, and wrinkles are formed on an outer circumferential surface of the forming tube, and the wrinkles formed on the sidewall of the through hole have a wrinkle shape of the forming tube. It may be transferred to the side wall of the through hole.
  • the pore size made by the integrated nanofibers may be set in the range of 0.2um-1um.
  • the pleated filter may have an asymmetric structure in which the size of the input terminal through which the treatment water is input is larger than the size of the output terminal through which the treatment water is output.
  • an electrospinning apparatus including a first radiation nozzle connected to a high voltage generator, an electrode rod spaced from the radiation nozzle and grounded, and a molded tube into which the electrode rod is inserted and formed on the outer circumferential surface thereof.
  • a spinning solution in which a polymer material and a solvent are mixed is spun into a forming tube through the first spinning nozzle, formed of integrated nanofibers, and having a cylindrical shape having a through hole formed therein, the side wall of the through hole and the It provides a pleat filter manufacturing method comprising the step of forming a pleat filter having pleats formed on the outer circumferential surface of the cylinder.
  • the first spinning nozzle electrospins the nanofibers while linearly reciprocating in the longitudinal direction of the forming pipe, and the electrode and the forming pipe may be rotated when the nanofibers are electrospun from the first spinning nozzle.
  • the electrospinning device may further include a second spray nozzle disposed to be spaced apart from the first radiation nozzle at a predetermined angle, and spraying beads containing ion exchange resin particles, the outer side of the integrated nanofiber.
  • the ion exchange resin particles may be formed by being dispersed.
  • the filter of the pleated structure by implementing the filter of the pleated structure, it is possible to increase the filtration flow rate and filtration life, it is possible to provide a technology for manufacturing a high value-added filter products.
  • the filter by manufacturing the filter by electrospinning to the forming tube, it is possible to provide a technology capable of lowering the manufacturing cost and process automation.
  • the integrated nanofibers form a nanofiber web layer, and form fine pores of a very complicated structure by fibers of 100-1000 nm class, and the fine particles contained in the fluid are inertial, gravity, It filters by sieve mechanisms such as interception effect and diffusion effect.
  • FIG. 1A and 1B are conceptual cross-sectional views and perspective views for explaining a pleated filter according to an embodiment of the present invention
  • FIGS. 2A to 2D are some conceptual views illustrating a groove shape formed on a sidewall of a through hole of a pleated filter according to an embodiment of the present invention
  • FIG. 3 is a view for explaining a schematic configuration of an electrospinning apparatus for manufacturing a pleated filter according to an embodiment of the present invention
  • FIG. 4 is a conceptual view illustrating a state in which spinning nozzles are disposed according to an embodiment of the present invention
  • FIG. 5 is a conceptual view illustrating a state in which a spinning nozzle and a spray nozzle are disposed according to an embodiment of the present invention
  • FIG. 6 is a cross-sectional view taken along line AA ′ of FIG. 3;
  • Figure 7 is a photograph taken a state in which the nanofibers are integrated in the forming tube according to an embodiment of the present invention.
  • FIGS. 8A and 8B are views for explaining the structure of a pleated filter according to an embodiment of the present invention.
  • the filtration area can be increased, the filtration flow rate And filtration life can be increased, resulting in a high value filter.
  • FIGS. 1A and 1B are conceptual cross-sectional views and perspective views illustrating a pleated filter according to an embodiment of the present invention
  • FIGS. 2A to 2D are grooves formed in a sidewall of a through hole of a pleated filter according to an embodiment of the present invention. Some conceptual views are shown for explaining the form.
  • the pleated filter 100 is formed of a nanofiber 110 that is electrospun and integrated, and has a cylindrical shape in which a through hole 120 is formed therein.
  • the wrinkles are formed on the side wall of the through hole 120 and the outer circumferential surface of the cylinder.
  • the cylinder has a shape whose length is longer than the diameter.
  • a plurality of grooves 111 may be formed on the sidewalls of the through holes 120, and a plurality of grooves 111 may form wrinkles on the sidewalls of the through holes 120.
  • the plurality of grooves 111 may be a straight pattern, a curved pattern, a mixed pattern of straight and curved patterns, a polygonal pattern, a grid pattern, a dot pattern, a rhombus pattern, a parallelogram pattern, a mesh pattern, and a stripe.
  • the pattern, the cross pattern, the radial pattern, the circular pattern, and a plurality of patterns among the patterns may be formed in at least one pattern shape.
  • the pleats formed on the outer circumferential surface of the cylinder may be formed in a shape similar to the pleats formed on the side wall of the through hole 120.
  • the convex protruding shape 112 corresponding to the plurality of grooves 111 formed on the sidewall of the through hole 120 is formed on the outer circumferential surface of the cylinder.
  • the groove shape formed in the sidewall of the through hole of the pleated filter according to the embodiment of the present invention is a V groove 111a (Fig. 2a), a polygonal groove 111b (Fig. 2b), a circular groove. 111c (FIG. 2C) or the like, and may be a plurality of grooves spaced apart from each other or a plurality of grooves 111d (FIG. 2D) continuously connected to each other.
  • Such a pleated filter according to an embodiment of the present invention can maximize the filtration area in a limited space by the pleats formed on the inner circumferential surface and the outer circumferential surface, can increase the filtration flow rate, and improve the filtration life is excellent
  • the fiber diameter of the nanofibers can be made small to 200 nm level.
  • sub-micron pore size can be realized.
  • the pleated filter of the present invention preferably has a pore size of 0.2um-1um made of integrated nanofibers.
  • the size of the input terminal of the filter to which the treated water is input may be formed to be relatively larger than the size of the output terminal to which the treated water is output, thereby implementing a pleated filter.
  • the pleated filter has an asymmetric structure having different left and right sizes.
  • the filter applied to the present invention can be washed with water, can minimize the residual solvent after the filter is manufactured, it is possible to produce products suitable for the bio, pharmaceutical, medical field.
  • FIG. 3 is a view for explaining a schematic configuration of an electrospinning apparatus for manufacturing a pleated filter according to an embodiment of the present invention
  • Figure 4 illustrates a state in which the spinning nozzles are arranged in accordance with an embodiment of the present invention
  • 5 is a conceptual view illustrating a state in which a spinning nozzle and a spray nozzle are disposed according to an embodiment of the present invention
  • FIG. 6 is a cross-sectional view taken along line AA ′ of FIG.
  • FIG. 7 is a photograph of a state in which nanofibers are stacked in a forming tube according to an embodiment of the present invention.
  • the pleated filter according to the present invention is formed by integrating the electrospun nanofibers in the forming tube 260.
  • the forming tube 260 is formed with a through hole penetrated from one side to the other side, the electrode rod 250 grounded in the through hole is inserted.
  • An electrospinning apparatus for manufacturing a pleated filter according to an embodiment of the present invention is located at a lower portion spaced apart from the radiation nozzle 200a to which the high voltage generator is connected, and the radiation nozzle 200a, and the grounded electrode 250 is inserted. Molded tube 260 is included.
  • the spinning nozzle 200a is connected to a storage unit (not shown) in which a spinning solution in which a polymer material and a solvent are mixed is stored, and receives a spinning solution from the storage unit.
  • the spinning nozzle 200a spins nanofibers while linearly reciprocating in the longitudinal direction of the forming tube 260.
  • the movement of the spinning nozzle 200a may be controlled to radiate the nanofibers by integrating the nanofibers in one region of the forming tube 260 to a predetermined thickness and then moving to the neighboring regions. That is, the spinning nozzle 200a stops the movement of each of the detailed moving regions, spins the nanofibers, and then moves to another detailed moving region.
  • the spinning nozzle 200a electrospins the nanofibers while moving in a linear reciprocation along the forming tube 260 from one side of the forming tube 260 to the other side of the forming tube 260 and rotates during the electrospinning. ),
  • the forming tube 260 is also rotated so that the nanofibers are approximately uniformly integrated on the outer circumferential surface of the forming tube 260.
  • '200b' represents a spinning nozzle located on the other side of the forming tube 260.
  • the nanofibers can be integrated on the outer circumferential surface of the forming tube 260 using the electrospinning device.
  • the outer circumferential surface of the forming tube 260 is formed with wrinkles, and the nanofibers 110 integrated along the corrugation shape are separated from the forming tube 260 and become a cylindrical body having a through hole formed from one side to the other side.
  • the wrinkles of the forming tube 260 are transferred to form the wrinkles transferred to the side wall of the through hole and the outer circumferential surface of the cylinder.
  • the pleats of the forming tube 260 performs the same function as the sacrificial mold pattern, so that a pattern having a shape opposite to the sacrificial mold pattern is formed on the sidewall of the through hole of the pleated filter.
  • a flat filter media is made, rolled with one end of the flat filter media inward, and then the other end of the flat filter media is seam sealed to the outside of the rolled filter to form a cylindrical filter.
  • the filter made of nanofibers integrated on the outer side of the forming tube does not need to perform conventional ventilating, and thus, a high-fidelity filter without leakage problems may be manufactured.
  • the manufacturing cost is increased by performing a number of complex processes, such as a roll winding process and a sealing process, but in the present invention, in the forming pipe
  • the process of electrospinning has the advantage of lowering the manufacturing cost and allowing for process automation. As a result, it is possible to minimize contamination and to produce a product having excellent uniformity and economy.
  • the forming tube 260 is positioned outside the electrode 250, and the forming tubes 260 and the spinning nozzles 211 and 212 radiating the nanofibers 205 are spaced at predetermined intervals.
  • the radiation nozzles 211 and 212 may be designed in plural, and in this case, the plurality of radiation nozzles 211 and 212 may be spaced apart by a predetermined angle ⁇ 1. That is, the plurality of spinning nozzles 211 and 212 linearly reciprocate in the longitudinal direction of the forming tube 260, so that the movements do not overlap each other.
  • the electrospinning apparatus may further include an injection nozzle 220 disposed to be spaced apart from the radiation nozzle 213 at a predetermined angle ⁇ 2 and for injecting beads containing ion exchange resin particles.
  • the ion exchange resin particles may be dispersed and positioned outside the nanofibers 205 radiated from the spinning nozzle 213.
  • the pleated filter of the present invention may have a water treatment filter function by the fine pore structure of the integrated nanofibers and a chemical filter function to filter specific ions of the chemical substance by the ion exchange resin particles.
  • the ion exchange resin particles may be defined as having functional groups having ion exchange ability on the inner surface thereof, and may include a cation exchange resin, an anion exchange resin, a positive positive exchange resin, and the like, depending on the ions to be exchanged.
  • PSDVB Polystyrene Divinylbenzene
  • PSDVB Polystyrene Divinylbenzene
  • the nanofibers 110 integrated on the outer circumferential surface of the forming tube 260 may be manufactured.
  • the integrated nanofibers 110 have a wrinkle shape.
  • '261' is a through hole through which the electrode can be inserted into the forming tube 260.
  • FIGS. 8A and 8B are views for explaining the structure of a pleated filter according to an embodiment of the present invention.
  • the pleated filter consists of integrated nanofibers.
  • the nanofibers may be composed of a plurality of nanofiber layers having different diameters
  • FIG. 8A is for explaining a pleated filter having a structure in which the first nanofiber layer 110a and the second nanofiber layer 110b are stacked.
  • the nanofibers of the first nanofiber layer 110a and the second nanofiber layer 110b have different diameters.
  • the pleated filter may be implemented in a structure in which the ion exchange resin particles 119 are dispersed in the interface region between the first nanofibrous layer 110a and the second nanofiber layer 110b. That is, ion-exchange resin particle is disperse
  • the integrated nanofibers according to the present invention form a nanofiber web layer, and form fine pores of a very complicated structure by fibers of 100-1000 nm class, and inertial effects of fine particles contained in the fluid. Filtering is performed by sieve mechanisms such as the gravitational effect, the gravity effect, the interception effect, and the diffusion effect.
  • the present invention provides a pleated filter capable of maximizing the filtration area within the limited space of the filter and increasing the filtration flow rate and filtration life.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Nanotechnology (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Nonwoven Fabrics (AREA)
  • Filtering Materials (AREA)

Abstract

La présente invention concerne un filtre ondulé et un procédé de fabrication de celui-ci, et peut produire le filtre ondulé qui comprend des nanofibres produites et intégrées par électrofilage, et à la forme d'un corps cylindrique pourvu d'un trou de passage à l'intérieur, la paroi latérale du trou de passage et la surface circonférentielle externe du corps cylindrique étant ondulées.
PCT/KR2014/006697 2013-08-06 2014-07-23 Filtre ondulé et procédé de fabrication de celui-ci WO2015020328A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020130093195A KR101601175B1 (ko) 2013-08-06 2013-08-06 주름 필터 및 그 제조 방법
KR10-2013-0093195 2013-08-06

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Publication Number Publication Date
WO2015020328A1 true WO2015020328A1 (fr) 2015-02-12

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CN106048901B (zh) * 2016-06-12 2018-04-17 东华大学 三维曲折纳米纤维复合窗纱及其静电纺丝方法
CN105887333B (zh) * 2016-06-12 2017-11-17 东华大学 三维曲折纳米纤维膜及其静电纺丝方法
KR101994776B1 (ko) * 2017-08-22 2019-09-30 주식회사 대창 나노섬유를 포함하는 필터 및 이를 제조하는 방법과 장치
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