KR101010387B1 - Coating composition for fabricating reverse osmosis membrane, method of fabricating reverse osmosis membrane for sea water desalting using the coating composition and reverse osmosis membrane using cross-linked sulfonated polyarylene ether sulfone copolymers - Google Patents
Coating composition for fabricating reverse osmosis membrane, method of fabricating reverse osmosis membrane for sea water desalting using the coating composition and reverse osmosis membrane using cross-linked sulfonated polyarylene ether sulfone copolymers Download PDFInfo
- Publication number
- KR101010387B1 KR101010387B1 KR1020090014356A KR20090014356A KR101010387B1 KR 101010387 B1 KR101010387 B1 KR 101010387B1 KR 1020090014356 A KR1020090014356 A KR 1020090014356A KR 20090014356 A KR20090014356 A KR 20090014356A KR 101010387 B1 KR101010387 B1 KR 101010387B1
- Authority
- KR
- South Korea
- Prior art keywords
- reverse osmosis
- osmosis membrane
- polyether sulfone
- seawater desalination
- mixed solution
- Prior art date
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D181/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing sulfur, with or without nitrogen, oxygen, or carbon only; Coating compositions based on polysulfones; Coating compositions based on derivatives of such polymers
- C09D181/06—Polysulfones; Polyethersulfones
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/025—Reverse osmosis; Hyperfiltration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
- B05D3/0254—After-treatment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/07—Aldehydes; Ketones
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/49—Phosphorus-containing compounds
- C08K5/50—Phosphorus bound to carbon only
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L63/00—Compositions of epoxy resins; Compositions of derivatives of epoxy resins
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/20—Diluents or solvents
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/65—Additives macromolecular
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2201/00—Polymeric substrate or laminate
- B05D2201/02—Polymeric substrate
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Wood Science & Technology (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Water Supply & Treatment (AREA)
- Inorganic Chemistry (AREA)
- Nanotechnology (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
고유량 및 고내구성을 이룰 수 있는 가교 구조를 갖는 폴리에테르술폰계열 해수담수화용 역삼투막을 제조하기 위한 코팅액 조성물 및 이를 이용한 해수담수화용 역삼투막 제조 방법에 대하여 개시한다. Disclosed are a coating liquid composition for preparing a polyethersulfone-based desalination membrane having a high flow rate and high durability, and a method for producing a desalination membrane using the same.
본 발명에 따른 해수담수화용 역삼투막 제조 방법은 (a)폴리에테르술폰계열 공중합체를 포함하는 코팅액 조성물을 제조하는 단계; (b)무기입자를 상기 코팅액 조성물에 분산시켜 혼합용액을 형성하는 단계; (c)상기 혼합용액을 피코팅물 표면에 도포하는 단계; (d)상기 도포된 혼합용액을 건조하여 막을 형성하는 단계; 및 (e)상기 건조된 막 내의 폴리에테르술폰계열 공중합체 사슬과 무기입자를 가교 반응시키는 단계를 포함하여 이루어진다. Method for producing a reverse osmosis membrane for seawater desalination according to the present invention comprises the steps of: (a) preparing a coating liquid composition comprising a polyether sulfone series copolymer; (b) dispersing inorganic particles in the coating solution composition to form a mixed solution; (c) applying the mixed solution to a surface to be coated; (d) drying the applied mixed solution to form a film; And (e) crosslinking the polyether sulfone-based copolymer chain and the inorganic particles in the dried membrane.
Description
본 발명은 해수담수화용 역삼투막에 관한 것으로서, 더욱 상세하게는 박막코팅에 의한 폴리에테르술폰계열 역삼투막, 특히, 종래의 폴리아미드 막에 비해 고유량, 고내구성의 특성을 얻을 수 있도록 친수성 술폰산기를 함유한 폴리에테르술폰 고분자, 가교결합을 위한 에폭시계 수지 및 촉매를 포함하는 역삼투막 제조용 코팅액 조성물, 이를 PET 부직포와 같은 다공성 지지체에 코팅한 후, 과잉의 용액을 제거하고, 건조 및 열처리를 통한 가교반응을 거쳐 제조하는 해수담수화용 역삼투막 제조 방법 및 최종적으로는 상기 방법을 이용하여 제조된 고유량/고내구성의 가교 구조를 갖는 폴리에테르술폰계열 해수담수화용 역삼투막에 관한 것이다. The present invention relates to a reverse osmosis membrane for seawater desalination, and more particularly, to a polyether sulfone-based reverse osmosis membrane by thin film coating, in particular, a hydrophilic sulfonic acid group containing hydrophilic sulfonic acid group so as to obtain high flow rate and high durability compared to a conventional polyamide membrane. A coating liquid composition for preparing a reverse osmosis membrane comprising a polyether sulfone polymer, an epoxy resin for crosslinking, and a catalyst, which is coated on a porous support such as a PET nonwoven fabric, and then the excess solution is removed, followed by a crosslinking reaction through drying and heat treatment. The present invention relates to a method for preparing a reverse osmosis membrane for seawater desalination, and finally a reverse osmosis membrane for polyethersulfone series seawater desalination having a high flow rate / high durability crosslinked structure prepared using the above method.
역삼투막(Reverse Osmosis membrane)은 분자 수준의 물질을 분리하고 기수 혹은 해수에서 염을 제거하여 가정용 건축용 및 화학 공정의 용수를 공급하는데 경제적이다. Reverse osmosis membranes are economical for the separation of molecular materials and the removal of salts from brackish or seawater to provide water for domestic construction and chemical processes.
탈염화(Desalting)에서 중요한 인자는 막의 염 배제율과 유량이며, 막 공정의 경제성을 고려했을 때 해수에서는 800psi 압력에서 10 gallon/ft2-day(gfd) 이상, 기수에서는 220psi 압력에서 15gfd 이상의 유량을 나타내어야만 한다. The important factors in desalting are the membrane's salt rejection rate and flow rate, taking into account the economics of the membrane process, the flow rate above 10 gallon / ft 2 -day (gfd) at 800 psi pressure in seawater and at least 15 gfd at 220 psi pressure in brackish water. Should be indicated.
대한민국 특허공개공보 제10-2000-0018635호(2000.04.06. 공개), 대한민국 특허공개공보 제10-2006-0106665(2006.10.12. 공개) 등에 개시되어 있는 바와 같이, 종래에는 해수담수화용 역삼투막으로 주로 폴리아미드(Polyamide)계열의 역삼투막을 이용하였는데, 이러한 폴리아미드계 역삼투막은 주로 두 개의 1급 아민 치환체를 함유하는 방향족 폴리아민과 세 개 이상의 아실할라이드 관능기를 갖는 방향족의 아실할라이드(acyl halide)를 미세 다공성 폴리술폰 지지체 상에서 계면중합하여 제조하였다. As disclosed in Korean Patent Publication No. 10-2000-0018635 (published on June 6, 2000) and Korean Patent Publication No. 10-2006-0106665 (published on October 12, 2006) and the like, conventionally, a reverse osmosis membrane for seawater desalination Polyamide-based reverse osmosis membranes were mainly used, and these polyamide-based reverse osmosis membranes mainly contained aromatic polyamines containing two primary amine substituents and aromatic acyl halides having three or more acyl halide functional groups. It was prepared by interfacial polymerization on a porous polysulfone support.
특히, 물에 녹인 메타페닐디아민(MPD)을 프레온(trichlorotrifluoroethane, Freon TF, DuPont사)에 녹인 트리메조일클로라이드(TMC)와 반응시켰을 때 그 성능이 아주 우수하다고 발표하였다. In particular, it was announced that the performance of the methylphenyl diamine (MPD) dissolved in water and trimethoyl chloride (TMC) dissolved in Freon (trion trifluoroethane, Freon TF, DuPont) is very excellent.
그러나 이러한 종래의 폴리아미드계 역삼투막의 경우, 투과 유량이 낮아 생산성이 떨어지며 아마이드 결합의 낮은 내염소성으로 인하여 막의 수명이 낮은 문 제점이 있다.However, such a conventional polyamide reverse osmosis membrane has a low permeation flow rate, resulting in low productivity and low membrane life due to low chlorine resistance of the amide bond.
따라서, 상기와 같은 폴리아미드계 역삼투막의 문제점을 해결하여, 낮은 압력에서 고유량을 나타내면서도 고내구성을 갖는 해수담수화에 유용하게 사용될 수 있는 역삼투막의 제조가 요구된다. Therefore, to solve the problems of the polyamide-based reverse osmosis membrane as described above, there is a need for the production of a reverse osmosis membrane that can be useful for seawater desalination having high durability while showing a high flow rate at a low pressure.
본 발명의 목적은 종래의 폴리아미드계 역삼투막보다 고유량, 고내구성 및 염 배제율이 우수한 가교 구조를 갖는 폴리에테르술폰계열의 역삼투막 제조용 코팅액 조성물을 제공하는 것이다.An object of the present invention is to provide a coating liquid composition for preparing a reverse osmosis membrane of a polyether sulfone series having a crosslinked structure having a higher flow rate, higher durability, and a higher salt rejection rate than a conventional polyamide reverse osmosis membrane.
본 발명의 다른 목적은 다공성 폴리술폰 지지층을 사용하지 않고, PET(Polyethylene Terephthalate) 부직포 상에 폴리에테르술폰계열 공중합체를 포함하는 코팅액 조성물을 직접 박막 코팅하여 해수담수화용 역삼투막을 제조하는 방법을 제공하는 것이다.Another object of the present invention is to provide a method for producing a reverse osmosis membrane for seawater desalination by directly coating a coating liquid composition comprising a polyether sulfone-based copolymer on a polyethylene terephthalate (PET) nonwoven fabric without using a porous polysulfone support layer. will be.
본 발명의 또 다른 목적은 상기 제조 방법에 의해 제조되어, 기수 및 해수처리에 유용한 고유량, 고내구성 및 우수한 염 배제율을 지닌 폴리에테르술폰계열 역삼투막을 제공하는 것이다. It is still another object of the present invention to provide a polyether sulfone series reverse osmosis membrane which is prepared by the above production method and has a high flow rate, high durability and excellent salt rejection rate useful for brackish water and seawater treatment.
상기 하나의 목적을 달성하기 위한 본 발명에 따른 역삼투막 제조용 코팅액 조성물은 폴리에테르술폰계열 공중합체 20~50중량%, 에폭시 수지 10~20중량%, 촉매 0.5~5중량% 및 잔량의 유기용매를 포함하는 것을 특징으로 한다. Coating liquid composition for preparing a reverse osmosis membrane according to the present invention for achieving the above one object comprises 20 to 50% by weight of polyether sulfone-based copolymer, 10 to 20% by weight of epoxy resin, 0.5 to 5% by weight of catalyst and the remaining amount of organic solvent Characterized in that.
상기 다른 목적을 달성하기 위한 본 발명에 따른 해수담수화용 역삼투막 제조 방법은 (a)폴리에테르술폰계열 공중합체를 포함하는 코팅액 조성물을 제조하는 단계; (b)무기입자를 상기 코팅액 조성물에 분산시켜 혼합용액을 형성하는 단계; (c)상기 혼합용액을 피코팅물 표면에 도포하는 단계; (d)상기 도포된 혼합용액을 건조하여 막을 형성하는 단계; 및 (e)상기 건조된 막 내의 폴리에테르술폰계열 공중합체 사슬과 무기입자를 가교 반응시키는 단계를 포함하는 것을 특징으로 한다. Method for producing a reverse osmosis membrane for seawater desalination according to the present invention for achieving the above another object comprises the steps of: (a) preparing a coating liquid composition comprising a polyether sulfone-based copolymer; (b) dispersing inorganic particles in the coating solution composition to form a mixed solution; (c) applying the mixed solution to a surface to be coated; (d) drying the applied mixed solution to form a film; And (e) crosslinking the polyether sulfone-based copolymer chain and the inorganic particles in the dried membrane.
상기 또 다른 목적을 달성하기 위한 본 발명에 따른 해수담수화용 역삼투막은 상기 제조방법에 의해 제조되어, 가교 구조를 갖는 폴리에테르술폰계열 역삼투막인 것을 특징으로 한다. Seawater desalination reverse osmosis membrane according to the present invention for achieving the above another object is characterized in that the polyether sulfone-based reverse osmosis membrane having a crosslinked structure.
본 발명에 따른 역삼투막 제조용 코팅액 조성물을 이용하여 제조된 가교 구조를 갖는 폴리에테르술폰계열의 역삼투막은 종래의 폴리아미드계열의 역삼투막에 비하여 내염소성이 우수하여 내구성을 향상시킬 수 있으며, 고분자 사슬에 친수성 술폰기가 도입되어 고유량을 실현할 수 있는 장점이 있다. The reverse osmosis membrane of the polyether sulfone series having a crosslinked structure prepared by using the coating liquid composition for preparing the reverse osmosis membrane according to the present invention has excellent chlorine resistance as compared to the conventional reverse osmosis membrane of the polyamide series, thereby improving durability, and hydrophilic sulfone on the polymer chain. The introduction of a group has the advantage of realizing a high flow rate.
따라서, 본 발명에 따른 역삼투막은 해수담수화용으로 유용하게 적용할 수 있다. Therefore, the reverse osmosis membrane according to the present invention can be usefully applied for seawater desalination.
본 발명의 이점 및 특징, 그리고 그것들을 달성하는 방법은 첨부되는 도면과 함께 상세하게 후술되어 있는 실시예들을 참조하면 명확해질 것이다. 그러나, 본 발명은 이하에서 개시되는 실시예들에 한정되는 것이 아니라 서로 다른 다양한 형태로 구현될 것이며, 단지 본 실시예들은 본 발명의 개시가 완전하도록 하며, 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자에게 발명의 범주를 완전하게 알려주기 위해 제공되는 것이며, 본 발명은 청구항의 범주에 의해 정의될 뿐이다. 명세서 전체에 걸쳐 동일 참조 부호는 동일 구성요소를 지칭한다.Advantages and features of the present invention and methods for achieving them will be apparent with reference to the embodiments described below in detail with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms, only the present embodiments to make the disclosure of the present invention complete, and common knowledge in the art to which the present invention pertains. It is provided to fully inform the person having the scope of the invention, which is defined only by the scope of the claims. Like reference numerals refer to like elements throughout.
이하 첨부된 도면을 참조하여 본 발명의 바람직한 실시예에 따른 에 관하여 상세히 설명하면 다음과 같다.Hereinafter, with reference to the accompanying drawings will be described in detail with respect to according to a preferred embodiment of the present invention.
역삼투막 제조용 코팅액 조성물Coating solution composition for reverse osmosis membrane production
본 발명에 따른 역삼투막 제조용 코팅액 조성물은 폴리에테르술폰계열 공중합체 20~50중량%, 에폭시 수지 10~20중량%, 촉매 0.5~5중량% 및 잔량의 유기용매를 포함하여 이루어진다. The coating liquid composition for preparing the reverse osmosis membrane according to the present invention comprises 20 to 50 wt% of a polyether sulfone series copolymer, 10 to 20 wt% of an epoxy resin, 0.5 to 5 wt% of a catalyst, and a residual amount of an organic solvent.
폴리에테르술폰계열 공중합체Polyether sulfone series copolymer
본 발명에서 폴리에테르술폰(Polyehtersulfone)계열 공중합체는 고분자 사슬에 친수성의 술폰기를 가지고 있는 것이라면 제한없이 이용될 수 있는데, 대표적으로, 하이드로퀴논계열 단량체, 디클로로디페닐술폰(DCDPS) 및 술폰화된 디클로로디페닐술폰(SDCDPS)의 축합 반응에 의해 형성된 Sulfonated poly(arylene ether sulfone) co-polymer를 이용할 수 있다. In the present invention, a polyethersulfone-based copolymer may be used without limitation as long as it has a hydrophilic sulfone group in the polymer chain. Typically, a hydroquinone monomer, dichlorodiphenylsulfone (DCDPS) and sulfonated dichloro Sulfonated poly (arylene ether sulfone) co-polymer formed by condensation reaction of diphenyl sulfone (SDCDPS) may be used.
폴리에테르술폰(Polyehtersulfone)계열 공중합체에 친수성 술폰기를 도입하여 고유량을 확보할 수 있으며, 이와 동시에 막 표면에 전하를 가짐으로써 해수의 염 이온과의 정전기적 인력과 반발력을 통한 우수한 염 배제율의 특성을 가지게 된 다. Hydrophilic sulfone groups can be introduced into polyethersulfone-based copolymers to secure a high flow rate, and at the same time, they have an electric charge on the membrane surface, resulting in excellent salt rejection rate through electrostatic attraction and repulsion with salt ions in seawater. Have characteristics.
상기 폴리에테르술폰계열 공중합체는 코팅액 조성물 전체 중량의 20~50중량%로 포함되는 것이 바람직하다. 폴리에테르술폰계열 공중합체가 20중량% 미만일 경우 친수성 술폰기의 감소로 인하여 고유량의 역삼투막을 구현할 수 없으며, 50중량%를 초과할 경우, 가교 반응되지 않은 다량의 친수성 술폰기가 역삼투를 방해하는 요인으로 작용할 수 있다. The polyether sulfone-based copolymer is preferably contained in 20 to 50% by weight of the total weight of the coating liquid composition. When the polyether sulfone-based copolymer is less than 20% by weight, high hydrophobic reverse osmosis membranes cannot be realized due to the reduction of hydrophilic sulfone groups, and when the polyethersulfone-based copolymer exceeds 50% by weight, a large amount of hydrophilic sulfone groups that are not cross-linked may prevent reverse osmosis. It can act as a factor.
에폭시 수지 Epoxy resin
본 발명에서 에폭시 수지는 상기 폴리에테르술폰계열 공중합체와 가교결합된 폴리에테르술폰 공중합체를 형성한다. In the present invention, the epoxy resin forms a polyether sulfone copolymer crosslinked with the polyether sulfone series copolymer.
이러한 에폭시 수지는 비스페놀 A형 에폭시, 노블락 타입 에폭시, 비스페놀 F형 에폭시, Cycloaliphatic 에폭시 등을 이용할 수 있다. As such an epoxy resin, a bisphenol A type epoxy, a noblock type epoxy, a bisphenol F type epoxy, a cycloaliphatic epoxy, or the like can be used.
상기 에폭시 수지는 코팅액 조성물 전체 중량의 10~20중량%로 포함되는 것이 바람직하다. 에폭시 수지가 10중량% 미만으로 포함되면 가교결합을 이루기 어려운 문제점이 있으며, 에폭시 수지가 20중량%를 초과하면 경화시간이 길어지며, 부착성이 떨어지는 문제점이 있다. The epoxy resin is preferably contained in 10 to 20% by weight of the total weight of the coating liquid composition. If the epoxy resin is contained in less than 10% by weight, there is a problem that is difficult to achieve crosslinking, when the epoxy resin exceeds 20% by weight, the curing time is long, there is a problem in poor adhesion.
촉매catalyst
본 발명에서 촉매는 상기 폴리에테르술폰계열 공중합체와 에폭시 수지의 가교 결합을 위한 활성화 에너지(activation energy)를 낮추어 상기 가교 결합을 촉 진하는 역할을 한다. In the present invention, the catalyst serves to promote the crosslinking by lowering an activation energy for crosslinking of the polyether sulfone series copolymer and the epoxy resin.
이러한 촉매로는 TPP(Triphenylphospin) 촉매가 이용될 수 있다.As such a catalyst, TPP (Triphenylphospin) catalyst may be used.
상기 촉매는 코팅액 조성물 전체 중량의 0.5~5중량%로 포함되는 것이 바람직하다. 촉매가 0.5중량% 미만으로 첨가될 경우 상기 폴리에테르술폰계열 공중합체와 에폭시 수지 간의 가교결합이 이루어지는 시간이 길어지며, 촉매가 5중량%를 초과하여 첨가될 경우, 남아있는 촉매가 불순물로 작용하여 제조되는 역삼투막에서 고유량 특성을 이루기 어려운 문제점이 있다. The catalyst is preferably contained in 0.5 to 5% by weight of the total weight of the coating liquid composition. When the catalyst is added in less than 0.5% by weight cross-linking between the polyether sulfone-based copolymer and the epoxy resin takes a long time, when the catalyst is added in excess of 5% by weight, the remaining catalyst acts as an impurity It is difficult to achieve high flow characteristics in the reverse osmosis membrane to be manufactured.
유기 용매Organic solvent
본 발명에서 유기 용매는 상기 폴리에테르술폰계열 공중합체, 에폭시 수지 등을 용해시키고, 코팅액 조성물의 점도를 조절하는 역할을 한다. In the present invention, the organic solvent dissolves the polyether sulfone series copolymer, epoxy resin and the like, and serves to adjust the viscosity of the coating liquid composition.
이러한 유기 용매는 상기 폴리에테르술폰계열 공중합체, 에폭시 수지를 용해시킬 수 있는 것이라면 특별한 제한없이 이용할 수 있다. 예를 들면, 케톤류로서 메틸에틸케톤, 시클로헥사논, 아세톤, 디아세톤알콜, 다가알콜 및 에테르류로서 메틸셀로솔브, 에틸셀로솔브, 부틸셀로솔브, 셀로솔브아세테이트, 에스테르류로서 아세트산메틸, 아세트산에틸, 아세트산부틸, 할로겐화탄화수소류로서 클로로포름, 염화 메틸렌, 테트라클로로에탄, 질소포함화합물로서 니트로메탄, 아세토니트릴, N-메틸피롤리돈, N,N-디메틸포름아미드, 그 외, 디메틸설폭시드 등을 들 수 있으며, 이들 용매를 1종 또는 2종 이상 혼합하여 사용할 수 있다. Such an organic solvent can be used without particular limitation as long as it can dissolve the polyether sulfone series copolymer and epoxy resin. For example, methyl ethyl ketone, cyclohexanone, acetone, diacetone alcohol, polyhydric alcohol, and ethers, methyl cellosolve, ethyl cellosolve, butyl cellosolve, cellosolve acetate, and methyl acetate as esters. , Ethyl acetate, butyl acetate, chloroform, methylene chloride, tetrachloroethane as halogenated hydrocarbons, nitromethane as a nitrogen-containing compound, acetonitrile, N-methylpyrrolidone, N, N-dimethylformamide, others, dimethyl sulfoxide A seed etc. can be mentioned, These solvent can be used 1 type or in mixture of 2 or more types.
역삼투막 제조 방법Reverse osmosis membrane manufacturing method
도 1은 본 발명의 실시예에 따른 해수담수화용 역삼투막 제조 방법을 나타내는 순서도이다. 1 is a flow chart showing a method for producing a reverse osmosis membrane for seawater desalination according to an embodiment of the present invention.
도 1을 참조하면, 본 발명에 따른 해수담수화용 역삼투막 제조 방법은 코팅액 조성물 제조 단계(S110), 무기입자 분산 단계(S120), 혼합용액 도포 단계(S130), 건조 단계(S140) 및 가교 반응 단계(S150)를 포함하여 이루어진다. Referring to Figure 1, the seawater desalination reverse osmosis membrane manufacturing method according to the present invention is a coating liquid composition preparing step (S110), inorganic particle dispersion step (S120), mixed solution application step (S130), drying step (S140) and crosslinking reaction step It includes (S150).
코팅액 조성물 제조 단계(S110)에서는 폴리에테르술폰계열 공중합체를 포함하는 코팅액 조성물을 제조한다. 구체적으로는 상기 역삼투막 제조용 코팅액 조성물에서 제시한 폴리에테르술폰계열 공중합체 20~50중량%, 에폭시 수지 10~20중량%, 촉매 0.5~5중량% 및 잔량의 유기용매를 교반기에 투입한 후, 교반하여 가교결합된 폴리에테르술폰 공중합체를 형성한다. Coating liquid composition preparing step (S110) to prepare a coating liquid composition comprising a polyether sulfone-based copolymer. Specifically, 20 to 50% by weight of the polyether sulfone-based copolymer, 10 to 20% by weight of epoxy resin, 0.5 to 5% by weight of catalyst and the remaining amount of the organic solvent presented in the coating liquid composition for preparing the reverse osmosis membrane were added to the stirrer, followed by stirring. To form a crosslinked polyethersulfone copolymer.
도 2는 가교결합된 폴리에테르술폰 공중합체를 형성하는 예를 개략적으로 도시한 것이다. 2 schematically illustrates an example of forming a crosslinked polyethersulfone copolymer.
도 2를 참조하면, 폴리에테르술폰 공중합체계열의 sulfonated poly(arylene ether sulfone)는 다관능기를 갖는 에폭시 수지와 결합하여 Crosslinked poly(arylene ether sulfone) copolymer를 형성한다. 이때, sulfonated poly(arylene ether sulfone) 공중합체는 하이드로퀴논계열 단량체, 디클로로디페닐술폰(DCDPS) 및 술폰화된 디클로로디페닐술폰(SDCDPS)을 축합반응시켜 얻어질 수 있으며, TPP(Triphenylphospin) 촉매는 폴리에테르술폰 공중합체와 에폭시 수지의 가교 결합을 촉진시키는 역할을 한다. Referring to FIG. 2, sulfonated poly (arylene ether sulfone) of a polyether sulfone copolymerization system is combined with an epoxy resin having a polyfunctional group to form a crosslinked poly (arylene ether sulfone) copolymer. The sulfonated poly (arylene ether sulfone) copolymer may be obtained by condensation of a hydroquinone monomer, dichlorodiphenylsulfone (DCDPS) and sulfonated dichlorodiphenylsulfone (SDCDPS), and a TPP (Triphenylphospin) catalyst may be obtained. It serves to promote crosslinking of the polyether sulfone copolymer and the epoxy resin.
무기입자 분산 단계(S120)에서는 무기입자를 코팅액 조성물에 분산시켜 혼합용액을 형성한다. 무기입자는 폴리에테르술폰계열 공중합체의 고분자 사슬과 가교 반응을 하는 물질이다. 무기입자는 2~4nm의 기공 크기를 가지는 다공성 구조를 가지며, 평균직경 100nm 이하의 SiO2, ZrO2, TiO2, 제올라이트(zeolite) 등으로 이루어진 입자로서 표면이 하이드록실기(-OH)로 치환되어 표면 특성이 친수성을 나타내는 것들이 이용될 수 있다. In the inorganic particle dispersion step (S120), the inorganic particles are dispersed in the coating solution composition to form a mixed solution. Inorganic particles are materials that crosslink with the polymer chain of the polyether sulfone series copolymer. The inorganic particles have a porous structure having a pore size of 2 to 4 nm, and are particles composed of SiO 2 , ZrO 2 , TiO 2 , zeolite, etc. having an average diameter of 100 nm or less and the surface is substituted with a hydroxyl group (-OH). And those whose surface properties are hydrophilic can be used.
이러한 무기입자는 코팅액 조성물 100중량부에 대하여, 1~5중량부의 함량비로 포함되는 것이 바람직하다. 무기입자가 1중량부 미만으로 첨가되면 폴리에테르술폰계열 고분자 사슬과 충분한 가교 반응이 일어나지 않으며, 5중량부를 초과하면 무기입자의 침강이 발생하여 역삼투막의 불균일을 초래할 수 있다. Such inorganic particles are preferably contained in an amount ratio of 1 to 5 parts by weight based on 100 parts by weight of the coating liquid composition. If the inorganic particles are added in less than 1 part by weight, sufficient crosslinking reaction does not occur with the polyether sulfone-based polymer chain. If the inorganic particles are more than 5 parts by weight, precipitation of the inorganic particles may occur, which may cause non-uniformity of the reverse osmosis membrane.
혼합용액 도포 단계(S130)에서는 혼합용액을 피코팅물 표면에 도포한다. 여기서 피코팅물은 해수담수화용 역삼투막에서 이용되는 다공질의 PET 부직포가 될 수 있으며, 유리 기판 등의 기판 위에서 진행하는 다공성 PET(Polyethylene Terephthalate) 부직포 상에 혼합용액이 도포될 수 있다. In the mixed solution application step (S130), the mixed solution is applied to the surface of the coated object. Here, the coating material may be a porous PET nonwoven fabric used in the reverse osmosis membrane for seawater desalination, and a mixed solution may be applied onto a porous PET (Polyethylene Terephthalate) nonwoven fabric running on a substrate such as a glass substrate.
상기 혼합용액은 피코팅물 상에 2~10㎛의 두께로 도포될 수 있으나, 목표로 하는 역삼투막의 두께에 따라서 달라질 수 있다. The mixed solution may be applied on the coating to a thickness of 2 ~ 10㎛, it may vary depending on the thickness of the target reverse osmosis membrane.
건조 단계(S140)에서는 피코팅물 표면에 도포된 혼합용액을 건조하여 유기 용매를 제거함으로써 막을 형성한다. 건조는 유기 용매를 충분히 제거할 수 있도록 70~90℃에서 1~2시간동안 이루어질 수 있으며, 바람직하게는 80℃의 진공상태에서 1시간 동안 이루어질 수 있다. In the drying step (S140) to form a film by drying the mixed solution applied to the surface to be coated to remove the organic solvent. Drying may be performed for 1 to 2 hours at 70 ~ 90 ℃ to preferably remove the organic solvent, preferably for 1 hour in a vacuum of 80 ℃.
가교 반응 단계(S150)에서는 건조된 막 내의 폴리에테르술폰계열 공중합체 사슬과 무기입자를 가교 반응시켜, 상기 무기입자와 폴리에테르술폰계열 고분자 사슬을 가교 결합시켜, 가교 구조를 갖는 폴리에테르술폰계열 역삼투막을 형성한다. 무기입자와 폴리에테르술폰계열 고분자 사슬 간에 가교 결합이 충분히 이루어질 수 있도록, 본 단계의 가교 반응은 건조 단계(S140)에서보다 상대적으로 고온인 200~300℃에서 2~4시간동안 이루어질 수 있으며, 바람직하게는 250℃의 진공상태에서 3시간동안 이루어질 수 있다. In the crosslinking reaction step (S150), the polyether sulfone-based copolymer chain and the inorganic particles in the dried membrane are cross-linked to crosslink the inorganic particles and the polyether sulfone-based polymer chain to crosslink the polyether sulfone-based reverse osmosis membrane having a crosslinked structure. To form. The crosslinking reaction of this step may be performed for 2 to 4 hours at 200-300 ° C., which is relatively high temperature than in the drying step (S140), so that crosslinking may be sufficiently performed between the inorganic particles and the polyether sulfone-based polymer chain. Preferably it can be done for 3 hours in a vacuum at 250 ℃.
도 3은 본 발명에 따른 해수담수화용 역삼투막의 제조 방법을 구현하기 위한 제막 장치를 개략적으로 나타낸 것이다. Figure 3 schematically shows a film forming apparatus for implementing a method of manufacturing a reverse osmosis membrane for seawater desalination according to the present invention.
도 3을 참조하면, 해수담수화용 역삼투막은 다음과 같은 순서로 제조될 수 있다. Referring to FIG. 3, the reverse osmosis membrane for seawater desalination may be prepared in the following order.
시계방향으로 회전하는 롤로부터 PET 부직포가 공급된다. PET nonwoven fabric is supplied from a roll that rotates clockwise.
공급되는 PET 부직포 상에 본 발명에 따른 고분자 용액, 즉 무기입자가 분산된 혼합용액을 코팅하고, 건조기에서 건조시켜 유기 용매를 제거함으로써 막을 형 성한다. 이후, 열처리기를 통하려 무기입자와 폴리에테르술폰계열 고분자 사슬을 가교 결합시켜, 가교 구조를 갖는 폴리에테르술폰계열 역삼투막을 형성한다. 이후, 증류수 등으로 역삼투막이 형성된 PET 부직포를 세척한다. 끝으로, 반시계방향으로 회전하는 롤에 역삼투막이 형성된 PET 부직포를 권취한다. A polymer solution according to the present invention, that is, a mixed solution in which inorganic particles are dispersed, is coated on a PET nonwoven fabric to be supplied, and dried in a dryer to remove an organic solvent to form a membrane. Thereafter, the inorganic particles and the polyether sulfone series polymer chain are cross-linked through a heat treatment machine to form a polyether sulfone series reverse osmosis membrane having a crosslinked structure. Thereafter, the PET nonwoven fabric in which the reverse osmosis membrane is formed is washed with distilled water or the like. Finally, the PET nonwoven fabric with the reverse osmosis membrane formed on the roll rotating counterclockwise is wound.
상기 과정에서는 종래와 같이 별도의 미세 다공성 폴리술폰 지지체를 이용하지 않고, 직접 다공성 PET 부직포 상에 박막 코팅을 한다. 따라서, 양질의 해수담수화용 역삼투막을 얻을 수 있으며, 그 제조 과정 또한 단순화할 수 있다. In the above process, a thin film is coated directly on the porous PET nonwoven fabric without using a separate microporous polysulfone support as in the prior art. Therefore, a high quality seawater desalination reverse osmosis membrane can be obtained, and the manufacturing process thereof can also be simplified.
실시예Example
이하, 본 발명의 바람직한 실시예를 통해 본 발명의 구성 및 작용을 더욱 상세히 설명하기로 한다. 다만, 이는 본 발명의 바람직한 예시로 제시된 것이며 어떠한 의미로도 이에 의해 본 발명이 제한되는 것으로 해석될 수는 없다. Hereinafter, the configuration and operation of the present invention through the preferred embodiment of the present invention will be described in more detail. However, this is presented as a preferred example of the present invention and in no sense can be construed as limiting the present invention.
여기에 기재되지 않은 내용은 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자라면 충분히 기술적으로 유추할 수 있는 것이므로 그 설명을 생략하기로 한다. Details that are not described herein will be omitted since those skilled in the art can sufficiently infer technically.
1. 역삼투막의 제조1. Preparation of Reverse Osmosis Membrane
실시예 1Example 1
하이드로퀴논계열 단량체, 디클로로디페닐술폰(DCDPS) 및 술폰화된 디클로로 디페닐술폰(SDCDPS)을 축합반응시켜 sulfonated poly(arylene ether sulfone) 공중합체를 제조하였다. 제조된 sulfonated poly(arylene ether sulfone) 공중합체 20mg, 에폭시 수지 10mg, 촉매 0.5mg 및 유기 용매로서 메틸에틸케톤 69.5mg을 혼합 교반하여 코팅액 조성물을 제조한 후, 무기입자 2mg을 첨가하여 혼합용액을 제조하였다. 혼합용액을 유리기판 상에 진행하는 다공성 PET 부직포상에 도포한 후, 80℃의 진공상태에서 1시간 동안 건조하였다. 이후, 열처리기에서 250℃의 진공상태에서 3시간동안 가교반응시킨 후, 증류수로 세척하여 역삼투막을 제조하였다. A sulfonated poly (arylene ether sulfone) copolymer was prepared by condensation of a hydroquinone monomer, dichlorodiphenyl sulfone (DCDPS) and sulfonated dichloro diphenyl sulfone (SDCDPS). 20 mg of the prepared sulfonated poly (arylene ether sulfone) copolymer, 10 mg of epoxy resin, 0.5 mg of catalyst and 69.5 mg of methyl ethyl ketone as organic solvents were mixed and stirred to prepare a coating solution composition, and then 2 mg of inorganic particles were added to prepare a mixed solution. It was. The mixed solution was applied onto a porous PET nonwoven fabric running on a glass substrate, and then dried in a vacuum at 80 ° C. for 1 hour. Then, the crosslinking reaction for 3 hours in a vacuum at 250 ℃ in a heat treatment machine, and then washed with distilled water to prepare a reverse osmosis membrane.
실시예 2Example 2
Sulfonated poly(arylene ether sulfone) 공중합체 35mg, 에폭시 수지 15mg, 촉매 2.5mg 및 유기 용매로서 메틸에틸케톤 47.5mg을 혼합 교반하여 코팅액 조성물을 제조한 것을 제외하고는 실시예 1과 동일한 조건으로 역삼투막을 제조하였다. A reverse osmosis membrane was prepared under the same conditions as in Example 1, except that 35 mg of a sulfonated poly (arylene ether sulfone) copolymer, 15 mg of an epoxy resin, 2.5 mg of a catalyst, and 47.5 mg of methyl ethyl ketone were mixed and stirred as an organic solvent. It was.
실시예 3Example 3
Sulfonated poly(arylene ether sulfone) 공중합체 50mg, 에폭시 수지 20mg, 촉매 5mg 및 유기 용매로서 메틸에틸케톤 25mg을 혼합 교반하여 코팅액 조성물을 제조한 것을 제외하고는 실시예 1과 동일한 조건으로 역삼투막을 제조하였다. A reverse osmosis membrane was prepared under the same conditions as in Example 1 except that 50 mg of a sulfonated poly (arylene ether sulfone) copolymer, 20 mg of an epoxy resin, 5 mg of a catalyst, and 25 mg of methyl ethyl ketone were mixed and stirred as an organic solvent to prepare a coating solution composition.
비교예Comparative example
대한민국 공개특허공보 제10-2000-0018635호(2000.04.06. 공개)에 개시되어 있는 바와 같이, 부직포 상에 캐스팅된 140㎛ 두께의 다공성 폴리술폰 지지체 상에 0.2중량% 이미다졸을 함유하는 2중량% 메타페닐렌디아민(MPD) 용액에 40초동안 침지한 후, 0.1중량% 트리메조일 클로라이드(TMC)용액에 1분간 침지시킨 후, 공기 중에서 건조하고, 0.2중량% 탄산나트륨 수용액에 상온에서 세척하여 역삼투막을 제조하였다. 2 weights containing 0.2 wt% imidazole on a 140 μm thick porous polysulfone support cast on a nonwoven fabric, as disclosed in Korean Unexamined Patent Publication No. 10-2000-0018635 (published on April 6, 2000). After immersing in% metaphenylenediamine (MPD) solution for 40 seconds, it was immersed in 0.1% by weight of trimezoyl chloride (TMC) solution for 1 minute, dried in air, washed with 0.2% by weight aqueous sodium carbonate solution at room temperature Reverse osmosis membranes were prepared.
2. 물성측정 방법2. Property Measurement Method
1)투과유량 측정1) Transmission flow rate measurement
225psi, 상온에서 2,000ppm 염화나트륨 수용액을 이용하여, 자체 제작한 평막 측정 장치를 통해 시간에 따라 역삼투막을 투과하는 유량을 측정하였다. Using a 2000 ppm sodium chloride aqueous solution at 225 psi, room temperature, the flow rate through the reverse osmosis membrane was measured over time through a self-made flat membrane measuring apparatus.
2)염 배제율 측정2) salt exclusion rate measurement
225psi, 상온에서 2,000ppm 염화나트륨 수용액을 이용하여, 자체 제작한 평막 측정 장치를 통해 역삼투막을 투과한 용액의 염분 농도를 측정하여 염 배제율을 계산하였다. Using a 2000 ppm sodium chloride aqueous solution at 225 psi and room temperature, the salt rejection rate was calculated by measuring the salinity of the solution penetrating the reverse osmosis membrane through a self-made flat membrane measuring apparatus.
3. 측정 결과3. Measurement result
실시예 1~3 및 비교예에 의해 제조된 역삼투막을 통한 투과유량 및 염 배제율 측정 결과를 표 1에 나타내었다. Table 1 shows the results of measuring the flux and salt rejection rate through the reverse osmosis membrane prepared by Examples 1 to 3 and Comparative Examples.
[표 1]TABLE 1
표 1에 나타난 바와 같이, 본 발명에 따른 가교구조를 갖는 폴리에테르술폰계열 공중합체를 이용하여 제조된 역삼투막의 경우, 역삼투막을 투과하는 유량이 비교예에 비하여 고유량 특성을 가지는 것이 확인되었다. As shown in Table 1, in the case of the reverse osmosis membrane prepared using a polyether sulfone series copolymer having a crosslinked structure according to the present invention, it was confirmed that the flow rate through the reverse osmosis membrane has a high flow rate characteristic as compared with the comparative example.
또한, 염 배제율 역시 97~99% 정도로 비교예에 비하여 높은 수치를 나타내었는데, 이는 실시예 1~3의 경우 가교구조를 갖는 폴리에테르술폰계열 공중합체를 이용함으로써 우수한 염 배제율의 특성을 가지나, 비교예의 경우 아미드 계열의 물질을 이용하기 때문에 그러한 특성이 저하되는 것으로 보인다. In addition, the salt rejection rate was also higher than that of the comparative example of about 97 to 99%, which is excellent in the case of using the polyether sulfone-based copolymer having a crosslinked structure in Examples 1 to 3 In the case of the comparative example, such a characteristic seems to be reduced because an amide-based substance is used.
또한, 본 발명에 따른 역삼투막의 경우, 내염소성이 낮은 아마이드결합 구조를 가지지 않기 때문에 높은 내염소성을 기대할 수 있다. In addition, the reverse osmosis membrane according to the present invention can be expected to have high chlorine resistance because it does not have a low chlorine resistance amide bond structure.
이상에서는 본 발명의 일 실시예를 중심으로 설명하였지만, 당업자의 수준에서 다양한 변경이나 변형을 가할 수 있다. 이러한 변경과 변형이 본 발명의 범위를 벗어나지 않는 한 본 발명에 속한다고 할 수 있다. 따라서 본 발명의 권리범위는 이하에 기재되는 청구범위에 의해 판단되어야 할 것이다. Although the above has been described with reference to one embodiment of the present invention, various changes and modifications can be made at the level of those skilled in the art. Such changes and modifications may belong to the present invention without departing from the scope of the present invention. Therefore, the scope of the present invention will be determined by the claims described below.
도 1은 본 발명의 일실시예에 따른 해수담수화용 역삼투막의 제조 방법을 나타내는 순서도이다. 1 is a flow chart showing a method of manufacturing a reverse osmosis membrane for seawater desalination according to an embodiment of the present invention.
도 2는 가교결합된 폴리에테르술폰 공중합체를 형성하는 예를 개략적으로 도시한 것이다. 2 schematically illustrates an example of forming a crosslinked polyethersulfone copolymer.
도 3은 본 발명에 따른 해수담수화용 역삼투막의 제조 방법을 구현하기 위한 제막 장치를 개략적으로 나타낸 것이다. Figure 3 schematically shows a film forming apparatus for implementing a method of manufacturing a reverse osmosis membrane for seawater desalination according to the present invention.
Claims (13)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020090014356A KR101010387B1 (en) | 2009-02-20 | 2009-02-20 | Coating composition for fabricating reverse osmosis membrane, method of fabricating reverse osmosis membrane for sea water desalting using the coating composition and reverse osmosis membrane using cross-linked sulfonated polyarylene ether sulfone copolymers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020090014356A KR101010387B1 (en) | 2009-02-20 | 2009-02-20 | Coating composition for fabricating reverse osmosis membrane, method of fabricating reverse osmosis membrane for sea water desalting using the coating composition and reverse osmosis membrane using cross-linked sulfonated polyarylene ether sulfone copolymers |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20100095200A KR20100095200A (en) | 2010-08-30 |
| KR101010387B1 true KR101010387B1 (en) | 2011-01-21 |
Family
ID=42758980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020090014356A KR101010387B1 (en) | 2009-02-20 | 2009-02-20 | Coating composition for fabricating reverse osmosis membrane, method of fabricating reverse osmosis membrane for sea water desalting using the coating composition and reverse osmosis membrane using cross-linked sulfonated polyarylene ether sulfone copolymers |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR101010387B1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20150059984A (en) * | 2013-11-25 | 2015-06-03 | 롯데케미칼 주식회사 | Polymer additive for preparing of microfilter membrane or ultrafilter membrane and preparation method of the same |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20000051528A (en) * | 1999-01-22 | 2000-08-16 | 한형수 | Method for the perparation of the high flux reverse osmosis membrane |
| KR20060106665A (en) * | 2005-03-30 | 2006-10-12 | 주식회사 새 한 | Composite polyamide reverse osmosis membrane and method of producing the same |
-
2009
- 2009-02-20 KR KR1020090014356A patent/KR101010387B1/en active IP Right Grant
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20000051528A (en) * | 1999-01-22 | 2000-08-16 | 한형수 | Method for the perparation of the high flux reverse osmosis membrane |
| KR20060106665A (en) * | 2005-03-30 | 2006-10-12 | 주식회사 새 한 | Composite polyamide reverse osmosis membrane and method of producing the same |
Non-Patent Citations (1)
| Title |
|---|
| Polymer, 2008 |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20100095200A (en) | 2010-08-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6183945B2 (en) | Method for producing polyamide composite membrane | |
| CN108136344B (en) | Composite separation membrane | |
| US20160023168A1 (en) | Complex nanofiltration membrane and the preparation thereof | |
| KR101432219B1 (en) | Reverse osmosis membrane | |
| CN103635242A (en) | Thin film composite membranes embedded with molecular cage compounds | |
| EP2857088B1 (en) | Method for manufacturing a reverse osmosis membrane | |
| CA2884579C (en) | Sulfonated polyarylene ether composite seperation membrane | |
| US20150314245A1 (en) | Composite separation membrane | |
| KR101240736B1 (en) | Polymer compositions, water-treatment membranes and water-treatment modules comprising the same | |
| EP3354333A1 (en) | Water treatment membrane and method for manufacturing same | |
| KR20150084503A (en) | Method for Manufacturing Organic Solvent Resistant Nano Membrane and Nano Membrane Manufactured Thereof | |
| KR101659122B1 (en) | Polyamide water-treatment membranes having properies of high salt rejection and high flux and manufacturing method thereof | |
| KR101010387B1 (en) | Coating composition for fabricating reverse osmosis membrane, method of fabricating reverse osmosis membrane for sea water desalting using the coating composition and reverse osmosis membrane using cross-linked sulfonated polyarylene ether sulfone copolymers | |
| KR20140073166A (en) | Monovalent ions and divalent ions selective nanofiltration membrane and manufacturing method thereof | |
| KR102045108B1 (en) | Reverse osmosis membrane and method manufacturing same | |
| KR101433841B1 (en) | Composite Membrane and Manufacturing Method Thereof | |
| CN111036094A (en) | Chlorine-resistant composite reverse osmosis membrane, and preparation method and application thereof | |
| JPH01135504A (en) | Composite membrane and desalting of brine using the same | |
| JPH0952031A (en) | Semipermeable membrane and its manufacture | |
| KR101779889B1 (en) | Composite membrane comprising polyamide coating layer and preparation method thereof | |
| KR20140001367A (en) | Forward osmosis membrane and manufacturing method thereof | |
| KR20130079858A (en) | Polyester reverse osmosis composite membrane and preparation method thereof | |
| CN104548971A (en) | Reverse osmosis membrane and preparation method and application thereof | |
| JPH11226367A (en) | Reverse osmosis composite membrane | |
| KR100447933B1 (en) | Method for preparation of polyacrylonitrile asymmetric nanofiltration membrane for organic separation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A201 | Request for examination | ||
| E701 | Decision to grant or registration of patent right | ||
| GRNT | Written decision to grant | ||
| FPAY | Annual fee payment |
Payment date: 20140110 Year of fee payment: 4 |
|
| FPAY | Annual fee payment |
Payment date: 20150108 Year of fee payment: 5 |
|
| FPAY | Annual fee payment |
Payment date: 20160118 Year of fee payment: 6 |
|
| FPAY | Annual fee payment |
Payment date: 20170109 Year of fee payment: 7 |
|
| FPAY | Annual fee payment |
Payment date: 20180108 Year of fee payment: 8 |
|
| FPAY | Annual fee payment |
Payment date: 20190114 Year of fee payment: 9 |
|
| FPAY | Annual fee payment |
Payment date: 20200113 Year of fee payment: 10 |