KR20230092452A - Nanofiber filter having water-repellent and flame-retardant function and manufacturing method thereof - Google Patents
Nanofiber filter having water-repellent and flame-retardant function and manufacturing method thereof Download PDFInfo
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- 239000002121 nanofiber Substances 0.000 title claims abstract description 85
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 28
- 239000005871 repellent Substances 0.000 title claims abstract description 27
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical group N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 title claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 60
- 230000002940 repellent Effects 0.000 claims abstract description 23
- 239000000853 adhesive Substances 0.000 claims description 33
- 230000001070 adhesive effect Effects 0.000 claims description 33
- 239000000243 solution Substances 0.000 claims description 22
- 239000003063 flame retardant Substances 0.000 claims description 18
- 238000000576 coating method Methods 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 15
- 239000011248 coating agent Substances 0.000 claims description 14
- 238000001035 drying Methods 0.000 claims description 13
- 238000010438 heat treatment Methods 0.000 claims description 11
- 239000002033 PVDF binder Substances 0.000 claims description 8
- 238000001523 electrospinning Methods 0.000 claims description 8
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims description 8
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Natural products NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 6
- 239000003638 chemical reducing agent Substances 0.000 claims description 4
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 claims description 4
- 238000004804 winding Methods 0.000 claims description 4
- IBVAQQYNSHJXBV-UHFFFAOYSA-N adipic acid dihydrazide Chemical compound NNC(=O)CCCCC(=O)NN IBVAQQYNSHJXBV-UHFFFAOYSA-N 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 239000012943 hotmelt Substances 0.000 claims description 3
- 238000010030 laminating Methods 0.000 claims description 3
- 238000009958 sewing Methods 0.000 claims description 3
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 2
- 229920006243 acrylic copolymer Polymers 0.000 claims description 2
- 239000007864 aqueous solution Substances 0.000 claims description 2
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 claims description 2
- 239000004327 boric acid Substances 0.000 claims description 2
- 239000004202 carbamide Substances 0.000 claims description 2
- 229910052731 fluorine Inorganic materials 0.000 claims description 2
- 239000011737 fluorine Substances 0.000 claims description 2
- 230000009477 glass transition Effects 0.000 claims description 2
- 239000012466 permeate Substances 0.000 claims description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims 1
- 229910052710 silicon Inorganic materials 0.000 claims 1
- 239000010703 silicon Substances 0.000 claims 1
- 239000000428 dust Substances 0.000 description 20
- 239000000126 substance Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 6
- 241000894006 Bacteria Species 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
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- 239000008194 pharmaceutical composition Substances 0.000 description 3
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- 239000002994 raw material Substances 0.000 description 3
- 244000052616 bacterial pathogen Species 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
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- 239000007788 liquid Substances 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000002105 nanoparticle Substances 0.000 description 2
- 239000004745 nonwoven fabric Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 244000052769 pathogen Species 0.000 description 2
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- 239000011148 porous material Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- GNFTZDOKVXKIBK-UHFFFAOYSA-N 3-(2-methoxyethoxy)benzohydrazide Chemical compound COCCOC1=CC=CC(C(=O)NN)=C1 GNFTZDOKVXKIBK-UHFFFAOYSA-N 0.000 description 1
- 241000233866 Fungi Species 0.000 description 1
- 229920001410 Microfiber Polymers 0.000 description 1
- IKHGUXGNUITLKF-XPULMUKRSA-N acetaldehyde Chemical compound [14CH]([14CH3])=O IKHGUXGNUITLKF-XPULMUKRSA-N 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- 239000003658 microfiber Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 239000000047 product Substances 0.000 description 1
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Classifications
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- 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
- B01D39/1607—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous
- B01D39/1623—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous of synthetic origin
-
- 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
- B01D2239/04—Additives and treatments of the filtering material
- B01D2239/0414—Surface modifiers, e.g. comprising ion exchange groups
- B01D2239/0428—Rendering the filter material hydrophobic
-
- 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
- B01D2239/04—Additives and treatments of the filtering material
- B01D2239/0457—Specific fire retardant or heat resistant properties
-
- 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
- B01D2239/04—Additives and treatments of the filtering material
- B01D2239/0471—Surface coating material
- B01D2239/0492—Surface coating material on fibres
-
- 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
- B01D2239/08—Special characteristics of binders
-
- 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
- B01D2239/10—Filtering material manufacturing
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- Chemical Kinetics & Catalysis (AREA)
- Filtering Materials (AREA)
Abstract
본 발명은 발수 및 방염 기능이 부가된 나노섬유필터 및 이의 제조방법에 관한 것이다. 본 발명의 나노섬유필터는 발수, 방염, 필터성능 및 내구성이 우수하고, 더 나아가 친환경성을 가져 다양한 분야에 활용될 수 있다.The present invention relates to a nanofiber filter having water repellent and flame retardant functions and a manufacturing method thereof. The nanofiber filter of the present invention has excellent water repellency, flame retardancy, filter performance and durability, and further has eco-friendliness and can be used in various fields.
Description
본 발명은 나노섬유필터 및 그 제조방법에 관한 것으로, 구체적으로는 향균성, 통기성, 시인성 및 포집효율이 우수할 뿐만 아니라, 발수 및 방염 기능이 부가되고 내구성이 향상된 나노섬유필터 및 이의 제조방법에 관한 것이다.The present invention relates to a nanofiber filter and a method for manufacturing the same, and specifically, to a nanofiber filter having excellent antibacterial properties, air permeability, visibility and collection efficiency, as well as water repellent and flame retardant functions and improved durability, and a method for manufacturing the same. it's about
일반적으로, 나노섬유(Nanofiber)란, 지름이 수십에서 수백 나노미터에 불과한 초극세사를 지칭한다. 나노섬유의 제작에는 용도에 따라 다양한 고분자물질을 원료로 이용하며, 일반적으로 원료인 고분자 물질에 고전압의 전기장을 걸어서 원료인 고분자 물질 내부에 전기적인 반발력을 발생시키고, 이로 인해 분자들이 뭉쳐 나노 크기의 실(絲) 형태로 갈라지게 함으로써 나노섬유를 제조 및 생산한다. In general, nanofibers refer to microfibers having a diameter of only tens to hundreds of nanometers. In the manufacture of nanofibers, various polymer materials are used as raw materials depending on the purpose. In general, a high-voltage electric field is applied to the polymer materials, which are raw materials, to generate an electrical repulsive force inside the polymer materials, which is a raw material. Fabricate and produce nanofibers by splitting them into threads.
한편, 필터(Filter)는 유체 속의 이물질을 걸러내는 여과장치로서 액체필터와 에어필터로 분류되며, 특히 에어필터는 공기 중의 먼지 등 미립자, 세균 및 곰팡이 등의 생물입자, 박테리아, 바이러스 등과 같은 생물학적으로 유해한 것을 제거하는 용도로 활용되고 있다.On the other hand, a filter is a filtering device that filters out foreign substances in a fluid and is classified into a liquid filter and an air filter. In particular, an air filter is a biological filter such as particulates such as dust in the air, biological particles such as bacteria and fungi, and bacteria and viruses. It is used for the purpose of removing harmful substances.
단순 부직포로 이루어진 종래 에어필터는 제조공정이 단순하고 원가가 저렴한 장점이 있어 여러 가지 응용분야에 널리 사용되고 있으나, 먼지 여과효율이 떨어지는 단점이 있으며, 특히 인체에 유해한 크기 25㎛ 이하로 이루어진 미세먼지의 포집능력이 떨어지는 문제점이 있다.Conventional air filters made of simple non-woven fabric are widely used in various application fields due to their simple manufacturing process and low cost, but have the disadvantage of poor dust filtration efficiency, There is a problem of poor collection capacity.
상기 부직포형 에어필터의 단점 중 미세먼지 포집효율을 보완하기 위해 정전하가 부가된 부직포를 이용한 에어필터가 개발 및 사용되고 있으나, 비, 수분접촉이나 침투에 따라 정전필터의 정전특성이 감소하여, 집진효율이 급격히 저하되는 문제가 있다. 이를테면, 정전 특성의 감소에 따른 집진효율의 감소는 초기 99.97%의 집진효율에서 약 30%까지 저하되는 등의 여러 문제점이 있다. 따라서, 필터성능이 우수하면서도 여러가지 기능성이 부가된 효과적인 필터 기술의 개발 필요성이 높은 실정이다.Among the disadvantages of the non-woven fabric-type air filter, an air filter using a non-woven fabric with electrostatic charge has been developed and used to compensate for the fine dust collection efficiency, but the electrostatic characteristics of the electrostatic filter are reduced due to rain, moisture contact or infiltration, and dust collection There is a problem in that the efficiency rapidly decreases. For example, the decrease in dust collection efficiency due to the decrease in electrostatic characteristics has several problems, such as a decrease from an initial dust collection efficiency of 99.97% to about 30%. Therefore, there is a high need to develop an effective filter technology having excellent filter performance and various functionalities added.
본 발명의 하나의 목적은 a) 제1 망층 및 제2 망층에 방염액 열처리를 하는 1차 가공 단계;b) 제1 망층 및 제2 망층에 방염액 및 발수액 열처리를 하는 2차 가공 단계;c) 제1 망층을 전기 방사장치 내에 투입하는 단계;d) 제1 망층 위에 폴리비닐리덴 플루오라이드(PVDF) 용액을 전기 방사하여 나노섬유층을 형성하는 단계;e) 나노섬유층의 상부면과 제2 망층의 저부면에 친환경 수성접착제를 롤러로 코팅하는 단계;f) 나노섬유층과 제2 망층을 지관이나 드럼에 각각 권취한 다음 2~6시간 상온에 방치시켜 코팅된 수성접착제가 나노섬유층과 제2 망층으로 스며들도록 침투시키는 단계;g) 나노섬유층의 상부 표면에 친환경 수성접착제를 롤러로 코팅하는 단계;h) 제1 망층과 친환경 수성접착제가 마감 코팅된 나노섬유층과 제2 망층을 60~90℃의 온도로 히팅되는 상하 롤러 사이로 통과시켜 열압착 및 접합하는 단계;i) 상온에서 48~96시간 완전 건조하는 단계; 를 포함하는, 나노섬유필터 제조방법을 제공하는 것이다.One object of the present invention is a) a first processing step of performing a flame retardant solution heat treatment on the first and second mesh layers; b) a second processing step of performing a fire retardant and water repellent heat treatment on the first and second mesh layers; c) putting the first netting layer into an electrospinning apparatus; d) electrospinning a polyvinylidene fluoride (PVDF) solution on the first netting layer to form a nanofiber layer; e) an upper surface of the nanofiber layer and a second Coating the bottom surface of the net layer with an eco-friendly water-based adhesive with a roller; f) Winding the nanofiber layer and the second net layer on a paper pipe or drum, respectively, and then leaving them at room temperature for 2 to 6 hours so that the coated water-based adhesive is applied to the nanofiber layer and the second net layer. Step of infiltrating into the netting layer; g) coating the upper surface of the nanofiber layer with an eco-friendly water-based adhesive with a roller; h) the first netting layer, the nanofiber layer coated with the eco-friendly water-based adhesive, and the second netting layer at 60 to 90 ° C. Passing between the upper and lower rollers heated to a temperature of thermal compression and bonding; i) completely drying at room temperature for 48 to 96 hours; To provide a method for manufacturing a nanofiber filter comprising a.
본 발명의 다른 하나의 목적은 상기 나노섬유필터 제조방법으로 제조된 나노섬유필터를 제공하는 것이다.Another object of the present invention is to provide a nanofiber filter manufactured by the nanofiber filter manufacturing method.
상술한 목적을 달성하기 위한 본 발명의 일 실시양태는 a) 제1 망층 및 제2 망층에 방염액 열처리를 하는 1차 가공 단계;b) 제1 망층 및 제2 망층에 방염액 및 발수액 열처리를 하는 2차 가공 단계;c) 제1 망층을 전기 방사장치 내에 투입하는 단계;d) 제1 망층 위에 폴리비닐리덴 플루오라이드(PVDF) 용액을 전기 방사하여 나노섬유층을 형성하는 단계;e) 나노섬유층의 상부면과 제2 망층의 저부면에 친환경 수성접착제를 롤러로 코팅하는 단계;f) 나노섬유층과 제2 망층을 지관이나 드럼에 각각 권취한 다음 2~6시간 상온에 방치시켜 코팅된 수성접착제가 나노섬유층과 제2 망층으로 스며들도록 침투시키는 단계;g) 나노섬유층의 상부 표면에 친환경 수성접착제를 롤러로 코팅하는 단계;h) 제1 망층과 친환경 수성접착제가 마감 코팅된 나노섬유층과 제2 망층을 60~90℃의 온도로 히팅되는 상하 롤러 사이로 통과시켜 열압착 및 접합하는 단계;i) 상온에서 48~96시간 완전 건조하는 단계;를 포함하는, 나노섬유필터 제조방법을 제공하는 것이다.One embodiment of the present invention for achieving the above object is a) a first processing step of performing a flame retardant solution heat treatment on the first and second mesh layers; A secondary processing step of doing; c) putting the first mesh layer into an electrospinning device; d) electrospinning a polyvinylidene fluoride (PVDF) solution on the first mesh layer to form a nanofiber layer; e) nanofiber layer; Coating an eco-friendly water-based adhesive on the upper surface of the fiber layer and the lower surface of the second net layer with a roller; f) winding the nanofiber layer and the second net layer on a paper tube or drum, respectively, and then leaving them at room temperature for 2 to 6 hours to coat the aqueous Infiltrating the adhesive into the nanofiber layer and the second mesh layer; g) coating the upper surface of the nanofiber layer with an eco-friendly water-based adhesive with a roller; h) the first mesh layer and the eco-friendly water-based adhesive finish coated with the nanofiber layer; 2 step of thermal compression and bonding by passing the mesh layer between upper and lower rollers heated to a temperature of 60 ~ 90 ℃; i) complete drying at room temperature for 48 ~ 96 hours; .
본 발명의 다른 일 상기 나노섬유필터 제조방법으로 제조된 나노섬유필터를 제공하는 것이다.Another thing of the present invention is to provide a nanofiber filter manufactured by the nanofiber filter manufacturing method.
본 발명의 나노섬유필터는 미립자보다는 작고 공기보다는 큰 나노 크기의 다공체 기공이 나노섬유층에 형성되어 있어 미세먼지, 황사, 꽃가루, 미립자 등을 포함하는 분진, 입자성 유해물질, 미스트(Mist), 더스트(Dust)뿐 아니라, 각종 병원균, 세균, 박테리아, 바이러스와 같은 감염원 및/또는 이들이 포함된 비말 등이 효과적으로 차단되어 필터로서의 성능이 우수하면서도 우수한 방염 및 발수 기능을 보유하여, 궁극적으로 미세먼지, 빗물차단, 화재 피해를 방지 등에 있어 현저한 효과를 가진다. 일 예로, 본 발명의 나노섬유필터는 온실용으로 활용할 경우 작물 보호에 보다 효과적이다.In the nanofiber filter of the present invention, nano-sized porous pores that are smaller than fine particles and larger than air are formed in the nanofiber layer, so that dust, particulate harmful substances, mist, and dust including fine dust, yellow dust, pollen, and fine particles are removed. (Dust), infectious agents such as various pathogens, germs, bacteria, and viruses, and/or droplets containing them are effectively blocked, resulting in excellent performance as a filter and excellent flame-retardant and water-repellent functions, ultimately fine dust and rainwater. It has a remarkable effect on blocking, preventing fire damage, etc. For example, the nanofiber filter of the present invention is more effective in crop protection when used for greenhouses.
아울러, 본 발명의 나노섬유필터는 내구성 및 견고함이 향상되었으며, 투명도가 높아 시인성이 우수하다.In addition, the nanofiber filter of the present invention has improved durability and robustness, and has excellent visibility due to high transparency.
더 나아가, 본 발명의 나노섬유필터는 수성접착제, 핫멜트 라미네이팅 작업, 발수액 및 방염액 처리 등 전 과정에 거쳐, 환경친화적이고 인체에 무해한 성분으로 제조되어, 우수한 기능성을 보유하면서도 전 휘발성 유기화합물(VOC), 포름알데히드, 아세트알데히드, 디메틸포름아마이드(DMF) 등이 검출되지 않는다. 따라서, 인체에 적용하는 사물이나 물품(안면 마스크, 피복물)뿐 아니라, 각종 사물에 두루 적용할 수 있을 것이다.Furthermore, the nanofiber filter of the present invention is made of environmentally friendly and harmless components to the human body through the entire process of water-based adhesive, hot melt laminating, water repellent and flame retardant treatment, and has excellent functionality while maintaining all volatile organic compounds ( VOC), formaldehyde, acetaldehyde, dimethylformamide (DMF), etc. are not detected. Therefore, it will be applicable not only to objects or articles (face masks, coatings) applied to the human body, but also to various objects.
도 1은 본 발명 나노섬유필터의 구조를 예시적으로 간략히 나타낸 도이다.
도 2는 본 발명 나노섬유필터의 예시적인 외형을 나타낸 도이다.
도 3은 본 발명 나노섬유필터의 필터투과율 및 분집포질효율에 대한 시험 결과를 나타낸 도이다.
도 4은 본 발명 나노섬유필터의 일 실시예로, 수수봉지로의 활용 모습을 나타낸 도이다.
도 5는 본 발명 나노섬유필터의 일 실시예로, 미세먼지 차단 작업모로의 활용모습을 나타낸 도이다.
도 6은 본 발명 나노섬유필터의 일 실시예로, 농작업 마스크로의 활용모습을 나타낸 도이다.
도 7는 본 발명 나노섬유필터의 일 실시예로, 미세먼지 및 빗물차단 온실에 있어서의 활용모습을 나타낸 도이다.1 is a schematic diagram showing the structure of the nanofiber filter of the present invention by way of example.
2 is a diagram showing an exemplary appearance of the nanofiber filter of the present invention.
Figure 3 is a diagram showing the test results for the filter transmittance and the dust collection efficiency of the nanofiber filter of the present invention.
Figure 4 is an embodiment of the nanofiber filter of the present invention, a diagram showing how to use it as a water bag.
Figure 5 is an embodiment of the nanofiber filter of the present invention, a diagram showing how to use it as a fine dust blocking work cap.
Figure 6 is an embodiment of the nanofiber filter of the present invention, a diagram showing how to use it as an agricultural mask.
Figure 7 is an embodiment of the nanofiber filter of the present invention, a diagram showing the appearance of utilization in a greenhouse for blocking fine dust and rainwater.
본 발명에서 개시되는 각각의 설명 및 실시형태는 각각의 다른 설명 및 실시 형태에도 적용될 수 있다. 즉, 본 발명에서 개시된 다양한 요소들의 모든 조합이 본 발명의 범주에 속한다. 또한, 하기 기술되는 구체적인 서술에 의하여 본 발명의 범주가 제한된다고 할 수 없다.Each description and embodiment disclosed in the present invention can also be applied to each other description and embodiment. That is, all combinations of the various elements disclosed herein fall within the scope of the present invention. In addition, it cannot be said that the scope of the present invention is limited by the specific description described below.
또한, 당해 기술분야의 통상의 지식을 가진 자는 통상의 실험만을 사용하여 본 발명에 기재된 본 발명의 특정 양태에 대한 다수의 등가물을 인지하거나 확인할 수 있다. 또한, 이러한 등가물은 본 발명에 포함되는 것으로 의도된다.In addition, those skilled in the art will recognize, or be able to ascertain using no more than routine experimentation, many equivalents to the specific embodiments of the invention described herein. Also, such equivalents are intended to be included in this invention.
아울러, 본 발명의 명세서 전체에 있어서, 어떤 부분이 어떤 구성 요소를 "포함"한다고 할 때, 이는 특별히 반대되는 기재가 없는 한 다른 구성 요소를 제외하는 것이 아니라 다른 구성 요소를 더 포함할 수 있는 것을 의미한다.In addition, in the entire specification of the present invention, when a part "includes" a certain component, this means that it may further include other components, not excluding other components unless otherwise stated. it means.
전술한 바와 같은 배경하에서, 본 발명자들은 필터성능이 우수하면서도 방염 및 발수 등의 기능성이 향상된 나노섬유필터를 개발하였다.Under the background as described above, the present inventors have developed a nanofiber filter with improved functionality such as flame retardancy and water repellency while excellent filter performance.
본 발명의 일 실시양태는 a) 제1 망층 및 제2 망층에 방염액 열처리를 하는 1차 가공 단계; b) 제1 망층 및 제2 망층에 방염액 및 발수액 열처리를 하는 2차 가공 단계; c) 제1 망층을 전기 방사장치 내에 투입하는 단계; d) 제1 망층 위에 폴리비닐리덴 플루오라이드(PVDF) 용액을 전기 방사하여 나노섬유층을 형성하는 단계; e) 나노섬유층의 상부면과 제2 망층의 저부면에 친환경 수성접착제를 롤러로 코팅하는 단계; f) 나노섬유층과 제2 망층을 지관이나 드럼에 각각 권취한 다음 2~6시간 상온에 방치시켜 코팅된 수성접착제가 나노섬유층과 제2 망층으로 스며들도록 침투시키는 단계; g) 나노섬유층의 상부 표면에 친환경 수성접착제를 롤러로 코팅하는 단계; h) 제1 망층과 친환경 수성접착제가 마감 코팅된 나노섬유층과 제2 망층을 60~90℃의 온도로 히팅되는 상하 롤러 사이로 통과시켜 열압착 및 접합하는 단계; i) 상온에서 48~96시간 완전 건조하는 단계; 를 포함하는, 나노섬유필터 제조방법을 제공한다.One embodiment of the present invention is a) a primary processing step of subjecting the first netting layer and the second netting layer to a flame retardant solution heat treatment; b) a secondary processing step of subjecting the first netting layer and the second netting layer to a flame retardant and water repellent heat treatment; c) putting the first mesh layer into an electrospinning apparatus; d) forming a nanofiber layer by electrospinning a polyvinylidene fluoride (PVDF) solution on the first mesh layer; e) coating an eco-friendly water-based adhesive on the upper surface of the nanofiber layer and the lower surface of the second mesh layer with a roller; f) winding the nanofiber layer and the second mesh layer on a paper tube or drum, and then leaving them at room temperature for 2 to 6 hours to permeate the coated water-based adhesive into the nanofiber layer and the second mesh layer; g) coating an environmentally friendly water-based adhesive on the upper surface of the nanofiber layer with a roller; h) thermally compressing and bonding the first netting layer, the nanofiber layer coated with the eco-friendly water-based adhesive, and the second netting layer between upper and lower rollers heated to a temperature of 60 to 90 ° C; i) completely drying at room temperature for 48 to 96 hours; It provides a method for manufacturing a nanofiber filter comprising a.
상기 제1 망층 또는 제2 망층은 60 - 150 cm의 메쉬망 형태일 수 있다. 일 예로, 제1 망층 또는 제2 망층은 90 - 130cm 의 메쉬망 형태일 수 있다.The first mesh layer or the second mesh layer may have a mesh shape of 60 to 150 cm. For example, the first mesh layer or the second mesh layer may be in the form of a 90-130 cm mesh network.
상기 a)단계는 160 - 180℃로 방염액을 포함한 약품 조성물을 이용하여 방염액 열처리를 하는 것일 수 있다. 이 때, 상기 방염액은 상기 약품 조성물에 8 - 12 중량%로 포함되는 것일 수 있다.The step a) may be to heat-treat the flame retardant solution at 160 - 180 ° C. using a chemical composition containing the flame retardant solution. At this time, the flame retardant solution may be included in 8-12% by weight in the pharmaceutical composition.
상기 b)단계는 190 - 220℃로 방염액 5 ~ 15 중량% 및 발수액 2 ~ 10 중량%을 포함하는 약품 조성물을 이용하여 방염액 및 발수액 열처리 마무리 작업을 하는 것일 수 있다. 구체적인 일 예에서, 상기 약품 조성물은 조성물 총 중량기준 방염액 8 ~ 12 중량% 및 발수액 6 ~ 10 중량%를 포함할 수 있다. 이 때, 상기 방염액 및 발수액 약품의 배합 비율은 생산하고자 하는 제품의 특성에 따라 적절히 조정할 수 있다. 일 예에서, 본 발명의 나노섬유필터를 온실용으로 활용하고자 할 때, 외부에 노출되게 되는 망층의 표면부는 발수액의 포함 비율이 높은 방향으로 약품의 배합비율이 적절하게 조절될 수 있으나 이에 제한되는 것은 아니다. 일 예에서, 상기 약품 조성물은 조성물 총 중량기준 방염액 10 중량% 및 발수액 6 중량%를 포함하는 것일 수 있으나 이에 제한되지 않는다.The step b) may be a heat treatment finish operation of the flame retardant and water repellent solution at 190 - 220 ° C. using a chemical composition containing 5 to 15% by weight of the flame retardant solution and 2 to 10% by weight of the water repellent solution. In a specific example, the pharmaceutical composition may include 8 to 12% by weight of the flame retardant solution and 6 to 10% by weight of the water repellent solution based on the total weight of the composition. At this time, the blending ratio of the flame retardant and water repellent chemicals can be appropriately adjusted according to the characteristics of the product to be produced. In one example, when using the nanofiber filter of the present invention for a greenhouse, the surface portion of the net layer exposed to the outside can be appropriately adjusted in the mixing ratio of chemicals in a direction with a high water repellent liquid content, but is limited thereto. it is not going to be In one example, the pharmaceutical composition may include 10% by weight of the flame retardant solution and 6% by weight of the water repellent solution based on the total weight of the composition, but is not limited thereto.
상기 a) 단계 및 b)단계에서 제1망층과 제2망층은 각각 동일한 조건으로 가공되는 것이거나 혹은 각각 상이한 조건으로 가공되는 것일 수 있다. In steps a) and b), the first mesh layer and the second mesh layer may be processed under the same conditions or under different conditions.
상기 나노섬유필터 제조방법은 상기 e)단계는 수성접착제가 마르기 전 핫멜트 라미네이팅 공정으로 코팅하는 것을 더 포함할 수 있다. The nanofiber filter manufacturing method may further include coating with a hot melt laminating process before the water-based adhesive dries in step e).
상기 나노섬유필터 제조방법은 i) 단계 이후에, j) 제1 망층과 친환경 수성접착제가 마감 코팅된 나노섬유층과 제2 망층을 발수실로 부분 재봉하는 단계;를 더 포함할 수 있다. 이와 같은 부분 재봉을 통해, 제 1망층, 나노섬유층 및 제 2망층 간의 보다 견고한 접착 및 내구성을 보유할 수 있다.The nanofiber filter manufacturing method may further include, after step i), j) partially sewing the first netting layer, the nanofiber layer coated with the eco-friendly water-based adhesive, and the second netting layer with water-repellent threads. Through such partial sewing, stronger adhesion and durability between the first mesh layer, the nanofiber layer, and the second mesh layer can be maintained.
상기 나노섬유필터 제조방법은 상기 a)단계 이전에 제1 망층의 상부면에 친환경 수성접착제를 롤러로 코팅하는 단계 및 코팅된 제1 망층의 함수율이 40~60% 유지되도록 상온에서 자연 건조시키는 단계를 더 포함할 수 있다.The nanofiber filter manufacturing method includes the steps of coating an eco-friendly water-based adhesive on the upper surface of the first mesh layer with a roller before step a), and naturally drying at room temperature so that the moisture content of the coated first mesh layer is maintained at 40 to 60%. may further include.
상기 수성접착제는, 물 5~15 중량%, 수계 EVA 공중합체 10~22 중량%와, 수계 아크릴 공중합체 65~75 중량%와, VOC 저감제 2~5 중량%를 포함할 수 있다. 이 때, 상기 수성접착제의 코팅량은 8~30g/㎡일 수 있으나 이에 제한되는 것은 아니다. 또한, 상기 수성접착제의 유리전이온도는 -25~0℃이고, 점도는 300~800cps일 수 있으나 이에 제한되는 것은 아니다.The aqueous adhesive may include 5 to 15% by weight of water, 10 to 22% by weight of an aqueous EVA copolymer, 65 to 75% by weight of an aqueous acrylic copolymer, and 2 to 5% by weight of a VOC reducing agent. At this time, the coating amount of the water-based adhesive may be 8 ~ 30g / ㎡, but is not limited thereto. In addition, the water-based adhesive may have a glass transition temperature of -25 to 0 ° C and a viscosity of 300 to 800 cps, but is not limited thereto.
일 실시예에서, 상기 수성접착제는 1~10 중량%의 아디픽 디하이드라자이드(ADIPIC DIHYDRAZIDE)를 더 포함하는 것일 수 있으나 이에 제한되는 것은 아니다.In one embodiment, the water-based adhesive may further include 1 to 10% by weight of ADIPIC DIHYDRAZIDE, but is not limited thereto.
일 실시예에서, 상기 수성접착제에 2~8 중량%의 발수액을 더 포함하되, 상기 발수액은 상기 발수액은 친환경 불소계 발수액이거나 실리콘계 발수액중 어느 하나인 것일 수 있다.In one embodiment, the water-based adhesive further includes 2 to 8% by weight of a water repellent solution, but the water repellent solution may be any one of an environmentally friendly fluorine-based water repellent solution or a silicone-based water repellent solution.
또한, 구체적인 일 실시예에서, 본 발명의 상기 나노섬유필터 제조방법은 상온에서 48~96시간 완전 건조시켜 나노섬유필터를 얻는 g)단계 대신, 60~90℃의 건조실에서 12~24시간 가온 건조한 다음 12~24시간 상온에서 완전 건조시켜 나노섬유필터를 얻는 단계; 를 포함할 수 있다.In addition, in a specific embodiment, the nanofiber filter manufacturing method of the present invention is instead of step g) of obtaining a nanofiber filter by completely drying at room temperature for 48 to 96 hours, 12 to 24 hours in a drying room at 60 to 90 ° C. Obtaining a nanofiber filter by completely drying the next 12 to 24 hours at room temperature; can include
상기 VOC 저감제는, 물 69~90 중량%와, 티오요소 4~12 중량%와, 요소 1~4 중량%와, 붕산 1~4 중량%을 포함하는 수용액일 수 있다.The VOC reducing agent may be an aqueous solution containing 69 to 90% by weight of water, 4 to 12% by weight of thiourea, 1 to 4% by weight of urea, and 1 to 4% by weight of boric acid.
본 발명의 다른 일 실시양태는 상기 나노섬유필터 제조방법으로 제공된 나노섬유필터를 제공할 수 있다. 이 때, 상기 나노섬유 필터는 발수 및 방염 기능을 갖는 것을 특징으로 할 수 있다.Another embodiment of the present invention may provide a nanofiber filter provided by the nanofiber filter manufacturing method. At this time, the nanofiber filter may be characterized in that it has a water repellent and flame retardant function.
본 발명의 나노섬유필터는 방염 및 발수 기능이 우수할 뿐 아니라, 미립자보다는 작고 공기보다는 큰 나노 크기의 다공체 기공이 나노섬유층에 형성되어 있어 미세먼지, 황사, 꽃가루, 미립자 등을 포함하는 분진, 입자성 유해물질, 미스트(Mist), 더스트(Dust)뿐 아니라, 각종 병원균, 세균, 박테리아, 바이러스와 같은 감염원 및/또는 이들이 포함된 비말 등이 효과적으로 차단되어 우수한 필터성능을 보유한다. 본 발명의 필터 투과율 및 분진포집효율 등을 시험한 결과 상기와 같은 우수한 필터성능을 입증하였으며 이는 도 3에 나타내었다. The nanofiber filter of the present invention has excellent flame retardant and water repellent functions, and nano-sized porous pores smaller than fine particles and larger than air are formed in the nanofiber layer, so that dust, particles including fine dust, yellow dust, pollen, fine particles, etc. Infectious agents such as various pathogens, germs, bacteria, and viruses, as well as sexually harmful substances, mist, and dust, and/or droplets containing them are effectively blocked to have excellent filter performance. As a result of testing the filter transmittance and dust collection efficiency of the present invention, the excellent filter performance as described above was demonstrated, which is shown in FIG. 3.
(1)--제1 망층 (2)--나노섬유층 (3)--제2 망층(1)--First mesh layer (2)-Nanofiber layer (3)-Second mesh layer
Claims (15)
b) 제1 망층 및 제2 망층에 방염액 및 발수액 열처리를 하는 2차 가공 단계;
c) 제1 망층을 전기 방사장치 내에 투입하는 단계;
d) 제1 망층 위에 폴리비닐리덴 플루오라이드(PVDF) 용액을 전기 방사하여 나노섬유층을 형성하는 단계;
e) 나노섬유층의 상부면과 제2 망층의 저부면에 친환경 수성접착제를 롤러로 코팅하는 단계;
f) 나노섬유층과 제2 망층을 지관이나 드럼에 각각 권취한 다음 2~6시간 상온에 방치시켜 코팅된 수성접착제가 나노섬유층과 제2 망층으로 스며들도록 침투시키는 단계;
g) 나노섬유층의 상부 표면에 친환경 수성접착제를 롤러로 코팅하는 단계;
h) 제1 망층과 친환경 수성접착제가 마감 코팅된 나노섬유층과 제2 망층을 60~90
i) 상온에서 48~96시간 완전 건조하는 단계; 를 포함하는, 나노섬유필터 제조방법.
a) a first processing step of subjecting the first mesh layer and the second mesh layer to heat treatment in a flame retardant solution;
b) a secondary processing step of subjecting the first netting layer and the second netting layer to a flame retardant and water repellent heat treatment;
c) putting the first mesh layer into an electrospinning apparatus;
d) forming a nanofiber layer by electrospinning a polyvinylidene fluoride (PVDF) solution on the first mesh layer;
e) coating an eco-friendly water-based adhesive on the upper surface of the nanofiber layer and the lower surface of the second mesh layer with a roller;
f) winding the nanofiber layer and the second mesh layer on a paper tube or drum, and then leaving them at room temperature for 2 to 6 hours to permeate the coated water-based adhesive into the nanofiber layer and the second mesh layer;
g) coating an environmentally friendly water-based adhesive on the upper surface of the nanofiber layer with a roller;
h) The first netting layer, the nanofiber layer coated with the eco-friendly water-based adhesive, and the second netting layer are 60 to 90
i) completely drying at room temperature for 48 to 96 hours; Containing, nanofiber filter manufacturing method.
According to claim 1, wherein the heat treatment of step a) is carried out at 160 - 180 ℃, nanofiber filter manufacturing method.
The method of claim 1, wherein the heat treatment of step b) is performed at 190 - 220 °C.
According to claim 1, Step e) further comprises coating with a hot melt laminating process before the water-based adhesive dries, nanofiber filter manufacturing method.
j) 제1 망층과 친환경 수성접착제가 마감 코팅된 나노섬유층과 제2 망층을 발수실로 부분 재봉하는 단계;를 더 포함하는 것인, 나노섬유필터 제조방법.
The method of claim 1, after step i),
j) partially sewing the first netting layer and the nanofiber layer coated with the eco-friendly water-based adhesive and the second netting layer with a water-repellent thread; further comprising a nanofiber filter manufacturing method.
The method of claim 1, before step a), coating the upper surface of the first net layer with an eco-friendly water-based adhesive with a roller and naturally drying at room temperature so that the moisture content of the first net layer is maintained at 40 to 60%. Further comprising the step, nanofiber filter manufacturing method.
The method of claim 1, wherein the water-based adhesive comprises 5 to 15% by weight of water, 10 to 22% by weight of an aqueous EVA copolymer, 65 to 75% by weight of an aqueous acrylic copolymer, and 2 to 5% by weight of a VOC reducing agent. Nanofiber filter manufacturing method.
According to claim 1, instead of step i) of obtaining a nanofiber filter by completely drying at room temperature for 48 to 96 hours, drying by heating in a drying room at 60 to 90 ° C for 12 to 24 hours, followed by drying at room temperature for 12 to 24 hours to obtain nanofibers obtaining a filter; Nanofiber filter manufacturing method comprising a.
According to claim 1, Nanofiber filter manufacturing method characterized in that the coating amount of the water-based adhesive is 8 ~ 30g / ㎡.
The method of claim 1, wherein the VOC reducing agent is an aqueous solution containing 69 to 90% by weight of water, 4 to 12% by weight of thiourea, 1 to 4% by weight of urea, and 1 to 4% by weight of boric acid. , Nanofiber filter manufacturing method.
According to claim 1, Nanofiber filter manufacturing method further comprises 1 to 10% by weight of adipic dihydrazide (ADIPIC DIHYDRAZIDE) in the aqueous adhesive.
The method of claim 1, further comprising 2 to 8% by weight of water repellent in the water-based adhesive, wherein the water repellent is an eco-friendly fluorine-based water repellent or silicon-based water repellent, characterized in that any one of manufacturing a nanofiber filter method.
The method of claim 1, wherein the water-based adhesive has a glass transition temperature of -25 to 0 °C and a viscosity of 300 to 800 cps.
A nanofiber filter manufactured by the method of manufacturing a nanofiber filter according to any one of claims 1 to 13.
The nanofiber filter according to claim 14, wherein the nanofiber filter has water repellent and flame retardant functions.
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