KR970073707A - Method for producing polysulfone hollow fiber membrane with increased permeation efficiency - Google Patents

Method for producing polysulfone hollow fiber membrane with increased permeation efficiency Download PDF

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Publication number
KR970073707A
KR970073707A KR1019960018257A KR19960018257A KR970073707A KR 970073707 A KR970073707 A KR 970073707A KR 1019960018257 A KR1019960018257 A KR 1019960018257A KR 19960018257 A KR19960018257 A KR 19960018257A KR 970073707 A KR970073707 A KR 970073707A
Authority
KR
South Korea
Prior art keywords
hollow fiber
fiber membrane
solvent
polysulfone
polysulfone hollow
Prior art date
Application number
KR1019960018257A
Other languages
Korean (ko)
Inventor
허철
김재협
김승현
Original Assignee
이웅열
주식회사 코오롱
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 이웅열, 주식회사 코오롱 filed Critical 이웅열
Priority to KR1019960018257A priority Critical patent/KR970073707A/en
Publication of KR970073707A publication Critical patent/KR970073707A/en

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    • 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
    • B01D67/0009—Organic membrane manufacture by phase separation, sol-gel transition, evaporation or solvent quenching
    • B01D67/0016—Coagulation
    • 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
    • B01D67/0081—After-treatment of organic or inorganic membranes
    • B01D67/0095—Drying
    • 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
    • B01D69/08—Hollow fibre membranes
    • B01D69/087—Details relating to the spinning process
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
    • B01D71/06—Organic material
    • B01D71/66—Polymers having sulfur in the main chain, with or without nitrogen, oxygen or carbon only
    • B01D71/68—Polysulfones; Polyethersulfones
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2323/00—Details relating to membrane preparation
    • B01D2323/12—Specific ratios of components used
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2323/00—Details relating to membrane preparation
    • B01D2323/219—Specific solvent system
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2323/00—Details relating to membrane preparation
    • B01D2323/48—Influencing the pH

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Dispersion Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Artificial Filaments (AREA)

Abstract

폴리설폰과 하기 일반식(Ⅰ)의 친수성 폴리머, 응고성 용제를 용매에 용해하여 고분자 방사 용액을 제조하고, 상기 친수성 폴리머의 잔존량이 최대가 되도록 응고액의 pH를 조정한 후, 상기 방사 용액을 구금을 통해 응고조로 방사하여 고화시킨 뒤 상기 고화된 생성물을 산처리하고 수세 및 건조하는 공정으로 제조되는 투과효율이 증대된 폴리설폰계 중공사막은 종래의 중공사막에 비해 투과 성능이 매우 우수하다.After dissolving polysulfone, a hydrophilic polymer of general formula (I) and a coagulating solvent in a solvent to prepare a polymer spinning solution, after adjusting the pH of the coagulating solution so that the remaining amount of the hydrophilic polymer is the maximum, the spinning solution is The polysulfone-based hollow fiber membrane having a high permeation efficiency, which is produced by spinning and solidifying through a solidification tank and then acid-treated, washed with water and dried, is highly permeable than a conventional hollow fiber membrane.

(상기 식에서 n, m은 O 또는 자연수이고, R1, R2는로 이루어진 그룹 중에서 독립적으로 선택된 것이며, X는 Cl, F, I, Br로 이루어진 그룹 중에서 선택된다)Wherein n and m are O or natural numbers, and R 1 and R 2 are Independently selected from the group consisting of, X is selected from the group consisting of Cl, F, I, Br)

Description

투과 효율이 증대된 폴리설폰계 중공사막의 제조 방법Method for producing polysulfone hollow fiber membrane with increased permeation efficiency

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제1도는 본 발명에 따라 제조된 폴리설폰계 중공사막의 방사 후 처리를 개략적으로 나타낸 장치도.1 is an apparatus diagram schematically showing post-spinning treatment of a polysulfone hollow fiber membrane prepared according to the present invention.

Claims (7)

폴리설폰과 친수성 폴리머, 응고성 용제를 용매에 용해하여 고분자 방사용액을 제조하고；상기 친수성 폴리머의 잔존량이 최대가 되도록 응고액의 pH를 조정한 후, 상기 방사 용액을 구금을 통해 응고조로 방사하여 고화시킨 뒤；상기 고화된 생성물을 산처리하고 수세 및 건조하는 공정을 포함하는 투과 효율이 증대된 폴리설폰계 중공사막의 제조 방법.Preparing a polymer spinning solution by dissolving polysulfone, a hydrophilic polymer and a coagulating solvent in a solvent; adjusting the pH of the coagulation solution so that the remaining amount of the hydrophilic polymer is maximized, and then spinning the spinning solution into a coagulation bath through detention. After solidifying; The manufacturing method of the polysulfone hollow fiber membrane which the permeation efficiency improved, including the process of acid-processing, washing, and drying the said solidified product. 제1항에 있어서, 상기 친수성 폴리머는 하기 일반식(Ⅰ)의 폴리머인 폴리설폰계 중공사막의 제조 방법.The method for producing a polysulfone hollow fiber membrane according to claim 1, wherein the hydrophilic polymer is a polymer of the following general formula (I). (상기 식에서 n, m은 O 또는 자연수이고, R1, R2는로 이루어진 그룹 중에서 독립적으로 선택된 것이며, X는 Cl, F, I, Br로 이루어진 그룹 중에서 선택된다)Wherein n and m are O or natural numbers, and R 1 and R 2 are Independently selected from the group consisting of, X is selected from the group consisting of Cl, F, I, Br) 제1항에 있어서, 상기 응고액은 적어도 하나의 pH가 10이상인 내부응고액과 외부응고액을 포함하는 폴리설폰계 중공사막의 제조 방법.The method of claim 1, wherein the coagulating solution comprises an internal coagulation solution and an external coagulation solution having at least one pH of 10 or more. 제1항에 있어서, 상기 용매는 디메틸포름아마이드 및/또는 N-매틸피롤리돈 디메틸아세테이트 아마이드를 포함하는 아마이드계 용매, DMSO로 이루어진 그룹 중에서 선택되는 것인 폴리설폰계 중공사막의 제조 방법.The method of claim 1, wherein the solvent is selected from the group consisting of amide-based solvents including dimethylformamide and / or N-methylpyrrolidone dimethylacetate amide, and DMSO. 제1항에 있어서, 상기 폴리설폰의 사용량은 10∼30중량부, 상기 친수성 폴리머의 사용량은 1∼20중량부, 상기 응고성 용제의 사용량은 0∼20중량부, 상기 용매의 사용량은 40∼80중량부인 폴리설폰계 중공사막의 제조방법.The amount of the polysulfone is 10 to 30 parts by weight, the amount of the hydrophilic polymer is 1 to 20 parts by weight, the amount of the coagulation solvent is 0 to 20 parts by weight, and the amount of the solvent is 40 to 80 parts by weight of a polysulfone hollow fiber membrane manufacturing method. 제1항에 있어서, 상기 산처리는 1단계 이상 실시하는 것이 폴리설폰계 중공사막의 제조 방법.The method for producing a polysulfone hollow fiber membrane according to claim 1, wherein the acid treatment is performed at least one step. 제1항에 있어서, 상기 산처리 할 때의 처리조 pH는 1 이상 5 이하인 폴리설폰계 중공사막의 제조 방법.The process for producing a polysulfone hollow fiber membrane according to claim 1, wherein the treatment tank pH during said acid treatment is 1 or more and 5 or less. ※ 참고사항：최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019960018257A 1996-05-28 1996-05-28 Method for producing polysulfone hollow fiber membrane with increased permeation efficiency KR970073707A (en)

Priority Applications (1)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100434564B1 (en) * 2001-01-12 2004-06-05 주식회사 코오롱 A polysulfone-based hollow fiber membrane with excellent durability for steam, and a process of preparing for the same
KR100434565B1 (en) * 2001-01-12 2004-06-05 주식회사 코오롱 A polysulfone-based hollow fiber membrane with excellent durability for steam, and a process of preparing for the same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100434564B1 (en) * 2001-01-12 2004-06-05 주식회사 코오롱 A polysulfone-based hollow fiber membrane with excellent durability for steam, and a process of preparing for the same
KR100434565B1 (en) * 2001-01-12 2004-06-05 주식회사 코오롱 A polysulfone-based hollow fiber membrane with excellent durability for steam, and a process of preparing for the same

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