KR970020170A - Method for producing polyethersulfone capillary membrane and capillary membrane produced thereby - Google Patents

Method for producing polyethersulfone capillary membrane and capillary membrane produced thereby Download PDF

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Publication number
KR970020170A
KR970020170A KR1019950036727A KR19950036727A KR970020170A KR 970020170 A KR970020170 A KR 970020170A KR 1019950036727 A KR1019950036727 A KR 1019950036727A KR 19950036727 A KR19950036727 A KR 19950036727A KR 970020170 A KR970020170 A KR 970020170A
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KR
South Korea
Prior art keywords
membrane
polymer solution
capillary membrane
pes
solvent
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Application number
KR1019950036727A
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Korean (ko)
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KR0159175B1 (en
Inventor
안규홍
민병렬
Original Assignee
김은영
한국과학기술연구원
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Priority to KR1019950036727A priority Critical patent/KR0159175B1/en
Publication of KR970020170A publication Critical patent/KR970020170A/en
Application granted granted Critical
Publication of KR0159175B1 publication Critical patent/KR0159175B1/en

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Classifications

    • 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
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/14—Ultrafiltration; Microfiltration
    • B01D61/145—Ultrafiltration
    • 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
    • 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
    • C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
    • 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
    • B01D2323/15—Use of additives
    • B01D2323/18—Pore-control agents or pore formers
    • 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
    • B01D2325/00—Details relating to properties of membranes
    • B01D2325/02—Details relating to pores or porosity of the membranes
    • B01D2325/022—Asymmetric membranes
    • B01D2325/023—Dense layer within the membrane
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2325/00—Details relating to properties of membranes
    • B01D2325/02—Details relating to pores or porosity of the membranes
    • B01D2325/022—Asymmetric membranes
    • B01D2325/0231—Dense layers being placed on the outer side of the cross-section

Abstract

본 발명은 내오염성이 강하고 단위 부피당 투과율이 비교적 높은, 외경 2mm 이상의 모세관막의 제조 방법에 관한 것이다. 본 발명의 방법에서는 막의 재질이 되는 고분자 물질로서 투과율, 기계적 강도, 열적 강도 및 화학적 성질이 뛰어난 폴리에테르술폰을 사용하였으며, 모세관막의 내부와 외부의 존재하는 두개이 치밀층 중 외부의 치밀층을 내부 응고제의 조성과 유량을 조절함으로써 얇게 형성시켜 막의 투과 저항을 최소화하였다.The present invention relates to a method for producing a capillary membrane having an outer diameter of 2 mm or more having a high pollution resistance and a relatively high permeability per unit volume. In the method of the present invention, a polyether sulfone having excellent permeability, mechanical strength, thermal strength, and chemical properties is used as a polymer material, which is a material of a membrane. By controlling the composition and flow rate of the thin film was formed to minimize the permeation resistance of the membrane.

Description

폴리에테르술폰 모세관막의 제조 방법 및 그에 의해 제조된 모세관막Method for producing polyethersulfone capillary membrane and capillary membrane produced thereby

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 본 발명의 의한 모세관막의 단면도,1 is a cross-sectional view of the capillary membrane according to the present invention,

제2도는 모세관막의 제조 방법의 공정 흐름도,2 is a process flow diagram of a method for producing a capillary membrane,

제3도는 본 발명을 수행하기 위한 UF막 방사 장치의 개략도,3 is a schematic diagram of an UF film radiating apparatus for carrying out the present invention,

제4도는 방사구(紡絲口)의 개략 단면도.4 is a schematic cross-sectional view of a spinneret.

Claims (8)

고분자 막 재질, 용매 및 기공 형성제로 이루어진 고분자 용액을 방사구를 통과하여 방사시킨 후, 건식 조건에서 내부 응고제와 접촉되도록 하여 막 내부의 치밀층을 형성시키고, 이어서 겔화조에서 막 외부의 치밀층을 형성시키는 것을 포함하는 건습식 모세관막의 제조 방법에 있어서, 고분자 막 재질로서 폴리에테르술폰(PES)을 사용하는 방법.After spinning the polymer solution consisting of a polymer membrane material, a solvent and a pore-forming agent through a spinneret, the polymer solution is made to come into contact with the internal coagulant under dry conditions to form a dense layer inside the membrane. A method for producing a dry / wet capillary membrane comprising forming a polyether sulfone (PES) as a polymer membrane material. 제1항에 있어서, 상기 고분자 용액이 PES 18∼30중량%, 용매 40∼64중량%및 기공 형성제 18∼30중량%로 이루어진 방법.The method of claim 1, wherein the polymer solution is comprised of 18-30 wt% PES, 40-64 wt% solvent, and 18-30 wt% pore former. 제2항에 있어서, 상기 고분자 용액이 PES 22중량%, 용매로서 NMP와 DCM의 혼합물 56중량% 및 기공형성제로서 PVP 22중량%로 이루어진 방법.The process of claim 2 wherein said polymer solution consists of 22 weight percent PES, 56 weight percent mixture of NMP and DCM as solvent and 22 weight percent PVP as pore former. 제1항 내지 3항 중 어느 한 항에 있어서, 상기 내부 응고제로서 NMP를 50중량%로 함유하는 물과 NMP의 혼합물을 사용하는 방법.The method according to any one of claims 1 to 3, wherein a mixture of water and NMP containing 50% by weight of NMP is used as the internal coagulant. 제4항에 있어서, 상기 내부 응고제의 유량을 25ml/분으로 조절한 방법.The method of claim 4, wherein the flow rate of the internal coagulant is adjusted to 25 ml / min. 제1항에 있어서, 상기 고분자 용액과 내부 응고제가 접촉하는 건식 과정에서 외부의 습도를 95% 이상으로 조절한 방법.The method of claim 1, wherein the external humidity is controlled to 95% or more in a dry process in which the polymer solution is in contact with the internal coagulant. 제1항에 있어서 상기 겔화조에서 4℃ 이하의 물을 사용하는 방법.The method of claim 1, wherein water of 4 ° C. or less is used in the gelling bath. 제1항 내지 7항 중 어느 한 항 기재의 방법에 따라 제조된, 내오염성이 강하고 투과율이 높은 외경 2mm 이상의 중수도용 모세관막.A heavy water capillary membrane having an outer diameter of 2 mm or more having a high pollution resistance and a high transmittance, prepared according to any one of claims 1 to 7. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950036727A 1995-10-24 1995-10-24 Method for preparing polyestersulfone capillary membrane KR0159175B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950036727A KR0159175B1 (en) 1995-10-24 1995-10-24 Method for preparing polyestersulfone capillary membrane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950036727A KR0159175B1 (en) 1995-10-24 1995-10-24 Method for preparing polyestersulfone capillary membrane

Publications (2)

Publication Number Publication Date
KR970020170A true KR970020170A (en) 1997-05-28
KR0159175B1 KR0159175B1 (en) 1998-11-16

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KR1019950036727A KR0159175B1 (en) 1995-10-24 1995-10-24 Method for preparing polyestersulfone capillary membrane

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101331066B1 (en) * 2005-08-08 2013-11-19 코오롱인더스트리 주식회사 Polyethersulfone hollow fiber membrane and method of manufacturing the same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101331066B1 (en) * 2005-08-08 2013-11-19 코오롱인더스트리 주식회사 Polyethersulfone hollow fiber membrane and method of manufacturing the same

Also Published As

Publication number Publication date
KR0159175B1 (en) 1998-11-16

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