KR930004363A - 열유도 상분리법을 이용한 다공성 폴리올레핀 분리막의 제조 방법 - Google Patents

열유도 상분리법을 이용한 다공성 폴리올레핀 분리막의 제조 방법 Download PDF

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KR930004363A
KR930004363A KR1019910013777A KR910013777A KR930004363A KR 930004363 A KR930004363 A KR 930004363A KR 1019910013777 A KR1019910013777 A KR 1019910013777A KR 910013777 A KR910013777 A KR 910013777A KR 930004363 A KR930004363 A KR 930004363A
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polyolefin
membrane
diluent
hydrocarbons
prepared
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KR1019910013777A
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KR950002826B1 (ko
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김재진
김성수
황정림
서상봉
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박원희
한국과학기술연구원
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Priority to KR1019910013777A priority Critical patent/KR950002826B1/ko
Priority to US07/913,405 priority patent/US5250240A/en
Priority to DE4226205A priority patent/DE4226205C2/de
Priority to JP4232612A priority patent/JPH0763593B2/ja
Publication of KR930004363A publication Critical patent/KR930004363A/ko
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    • 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
    • B01D71/26—Polyalkenes
    • B01D71/261—Polyethylene
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
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    • D01D5/24—Formation of filaments, threads, or the like with a hollow structure; Spinnerette packs therefor
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    • B01D67/0002—Organic membrane manufacture
    • B01D67/0009—Organic membrane manufacture by phase separation, sol-gel transition, evaporation or solvent quenching
    • B01D67/00091—Organic membrane manufacture by phase separation, sol-gel transition, evaporation or solvent quenching by evaporation
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    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
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    • B01D67/0002—Organic membrane manufacture
    • B01D67/0009—Organic membrane manufacture by phase separation, sol-gel transition, evaporation or solvent quenching
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    • B01D67/0002—Organic membrane manufacture
    • B01D67/0009—Organic membrane manufacture by phase separation, sol-gel transition, evaporation or solvent quenching
    • B01D67/0018—Thermally induced processes [TIPS]
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    • B01D67/0002—Organic membrane manufacture
    • B01D67/0023—Organic membrane manufacture by inducing porosity into non porous precursor membranes
    • B01D67/0025—Organic membrane manufacture by inducing porosity into non porous precursor membranes by mechanical treatment, e.g. pore-stretching
    • B01D67/0027—Organic membrane manufacture by inducing porosity into non porous precursor membranes by mechanical treatment, e.g. pore-stretching by stretching
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    • 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
    • B01D67/0023—Organic membrane manufacture by inducing porosity into non porous precursor membranes
    • B01D67/003—Organic membrane manufacture by inducing porosity into non porous precursor membranes by selective elimination of components, e.g. by leaching
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    • 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
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    • 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
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    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
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    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/28—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof by elimination of a liquid phase from a macromolecular composition or article, e.g. drying of coagulum
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    • C08J2201/00—Foams characterised by the foaming process
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    • C08J2201/04—Foams characterised by the foaming process characterised by the elimination of a liquid or solid component, e.g. precipitation, leaching out, evaporation
    • C08J2201/054—Precipitating the polymer by adding a non-solvent or a different solvent
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Abstract

내용 없음.

Description

열유도 상분리법을 이용한 다공성 폴리올레핀 분리막의 제조방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 중공사형 분리막 제조 장치의 개략도이다.
제2-(a)도 내지 제2-(c)도는 폴리프로필렌(무게비 40％)-희석제 용융액을 평판형으로 성형하여 분당 10℃의 속도로 냉각시켜 제조한 다공성 막의 단면 사진으로서, 제2도-(a)는 희석제로서 올레인산을, 제2-(b)도는 리놀레인산을, 제2-(c)도는 대두유를 각각 사용한 경우이다.
제3-(a)도 내지 제3-(c)도는 폴리프로필렌(무게비40％)-희석제 용융액을 평판형으로 성형하여 25℃의 물에서 급속 냉각시켜 제조한 다공성 막의 단면 사진으로서, 제3도-(a)도는 희석제로서 올레인산을, 제3-(b)도는 리놀레인산을, 제3-(c)도는 대두유를 각각 사용한 경우이다.

Claims (15)

  1. 폴리올레핀과 희석제로 이루어진 용융 혼합물을 성형하고, 냉각시킨후, 추출 용매를 사용하여 희석제를 추출한 다음, 잔존 희석제 및 추출 용매를 증발 시키는 것으로 이루어지는 평판형 또는 중공사형 폴리올렌핀 다공성 분리막의 제조방법.
  2. 제1항에 있어서, 상기 폴리올레핀이 폴리에틸렌 또는 폴리프로필렌이고, 희석제가 천연산 대두유, 올레인산, 리놀레인산 및 팔미틴산으로부터 선택된 것임을 특징으로 하는 방법.
  3. 제1항 또는 제2항에 있어서, 상기폴리올레핀의 용융 지수가 0.1 내지 30이고, 용융 혼합물 중의 농도가 무게비로 10 내지 80％인 것을 특징으로 하는 방법.
  4. 제1항에 있어서, 추출 용매가 알코율류, 케톤류, 지방족 탄화수소 또는 할로겐화 탄화수소로부터 선택된것임을 특징으로 하는 방법.
  5. 제4항에 있어서, 상기 알코올이 에틸 알코올 또는 이소프로필 알코올이고, 상기 케톤이 아세톤이며, 상기 지방족 탄화수소가 노르말헥산이고, 상기 할로겐화 탄화수소가 염화탄화수소, 불화탄화수소 및 염화불환탄화수소로부터 선택된것임을 특징으로 하는 방법.
  6. 제1항에 있어서, 냉각 조건을 변환시킴으로써 제조된 다공성 분리막의 크기를 조절하는 것이 특징인 방법.
  7. 제1항에 있어서, 상기 성형 과정헤서 2중 노즐 구조로 된 방사구금(11)을 사용하여 외부 노즐로는 기어 펌프(9)를 사용하여 용융액을 일정량씩 공급하고, 내부 노즐로는 질소(5)를 일정유량씩 공급하여 중공을 형성함으로써 중공사형의 폴리올레핀 다공성 분리막을 제조하는 것을 특징으로 하는 방법.
  8. 제7항에 있어서, 용융 방사 속도를 조절함으로써 막 표면의 기공의 크기르 조절하는 것을 특짖으로 하는 제조방법.
  9. 제7항에 있어서, 용융방사시 권취 속도를 조절함으로써 제조된 다공성 막에 피브릴 구조를 형성하고, 기공률을 향상시키는 것을 특징으로 하는 방법.
  10. 제7항, 제8항 및 제9항중 어느 한 항에 있어서, 상기 용융 방사 및 희석제 추출 후 재연신 공정을 추가하여막의 외경 및 내경을 거의 변화시킴이 없이 막 표면 및 막 내부의 다공도를 향상시키는 것을 특징으로 하는 방법.
  11. 제10항에 있어서, 제조된 중공사형 폴리오레핀 다공성 분리막의 내경이 100 내지 500㎛이고, 막두께가 10 내지 100㎛이며, 기공크기가 0.1 내지 20㎛인 것을 특징으로 하는 방법.
  12. 제1항에 있어서 상기 용융 혼합물이 약 100㎛두께의 필름 형태로 성형되는 것을 특징으로 하는 제조방법.
  13. 제12항에 있어서, 셀구조의 평판형 폴리올레핀 다공성 분리막의 제조되는 것이 특징인 방법.
  14. 제12항에 있어서, 미세구조의 평판형 폴리올레핀 다공성 분리막의 제조되는 것이 특징인 방법.
  15. ※ 참고사항 : 최초출원 내용에 의하여 공개되는 것임.
KR1019910013777A 1991-08-09 1991-08-09 열유도 상분리법을 이용한 다공성 폴리올레핀 분리막의 제조방법 KR950002826B1 (ko)

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Application Number Priority Date Filing Date Title
KR1019910013777A KR950002826B1 (ko) 1991-08-09 1991-08-09 열유도 상분리법을 이용한 다공성 폴리올레핀 분리막의 제조방법
US07/913,405 US5250240A (en) 1991-08-09 1992-07-15 Process for the preparation of porous polyolefin separation membranes via thermally-induced phase separation
DE4226205A DE4226205C2 (de) 1991-08-09 1992-08-07 Verfahren zur Herstellung von porösen Polyolefintrennmembranen über thermisch induzierte Phasentrennung
JP4232612A JPH0763593B2 (ja) 1991-08-09 1992-08-10 多孔性ポリオレフィン分離膜の製造方法

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KR1019910013777A KR950002826B1 (ko) 1991-08-09 1991-08-09 열유도 상분리법을 이용한 다공성 폴리올레핀 분리막의 제조방법

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KR930004363A true KR930004363A (ko) 1993-03-22
KR950002826B1 KR950002826B1 (ko) 1995-03-27

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JP (1) JPH0763593B2 (ko)
KR (1) KR950002826B1 (ko)
DE (1) DE4226205C2 (ko)

Cited By (2)

* Cited by examiner, † Cited by third party
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KR100576573B1 (ko) * 2005-02-05 2006-05-04 도레이새한 주식회사 난연 폴리에틸렌 미다공막
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DE4226205A1 (de) 1993-02-11
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US5250240A (en) 1993-10-05
JPH0763593B2 (ja) 1995-07-12
KR950002826B1 (ko) 1995-03-27

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