KR20130065720A - 코폴리이미드 나노-섬유 부직포, 이의 제조 방법 및 이의 용도 - Google Patents
코폴리이미드 나노-섬유 부직포, 이의 제조 방법 및 이의 용도 Download PDFInfo
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- KR20130065720A KR20130065720A KR1020137010952A KR20137010952A KR20130065720A KR 20130065720 A KR20130065720 A KR 20130065720A KR 1020137010952 A KR1020137010952 A KR 1020137010952A KR 20137010952 A KR20137010952 A KR 20137010952A KR 20130065720 A KR20130065720 A KR 20130065720A
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- Prior art keywords
- residue
- nano
- temperature
- dianhydride
- copolyimide
- Prior art date
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- 239000002121 nanofiber Substances 0.000 title claims abstract description 82
- 239000004745 nonwoven fabric Substances 0.000 title claims abstract description 61
- 238000000034 method Methods 0.000 title claims abstract description 20
- 239000000178 monomer Substances 0.000 claims abstract description 73
- 239000002253 acid Substances 0.000 claims abstract description 39
- GTDPSWPPOUPBNX-UHFFFAOYSA-N ac1mqpva Chemical compound CC12C(=O)OC(=O)C1(C)C1(C)C2(C)C(=O)OC1=O GTDPSWPPOUPBNX-UHFFFAOYSA-N 0.000 claims abstract description 29
- 150000004985 diamines Chemical class 0.000 claims abstract description 23
- 230000005684 electric field Effects 0.000 claims abstract description 23
- 239000012528 membrane Substances 0.000 claims abstract description 13
- 238000003756 stirring Methods 0.000 claims abstract description 13
- 238000009987 spinning Methods 0.000 claims abstract description 7
- 239000002798 polar solvent Substances 0.000 claims abstract description 5
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical group CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 49
- 238000006243 chemical reaction Methods 0.000 claims description 42
- 230000015556 catabolic process Effects 0.000 claims description 13
- 238000005979 thermal decomposition reaction Methods 0.000 claims description 13
- 239000004642 Polyimide Substances 0.000 claims description 12
- 229920001577 copolymer Polymers 0.000 claims description 12
- 229920001721 polyimide Polymers 0.000 claims description 12
- 239000002904 solvent Substances 0.000 claims description 12
- 239000000126 substance Substances 0.000 claims description 12
- 230000035484 reaction time Effects 0.000 claims description 11
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 claims description 10
- 125000006159 dianhydride group Chemical group 0.000 claims description 10
- OLAPPGSPBNVTRF-UHFFFAOYSA-N naphthalene-1,4,5,8-tetracarboxylic acid Chemical compound C1=CC(C(O)=O)=C2C(C(=O)O)=CC=C(C(O)=O)C2=C1C(O)=O OLAPPGSPBNVTRF-UHFFFAOYSA-N 0.000 claims description 10
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N phenylbenzene Natural products C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 claims description 10
- 239000002243 precursor Substances 0.000 claims description 10
- 125000004427 diamine group Chemical group 0.000 claims description 9
- 235000010290 biphenyl Nutrition 0.000 claims description 8
- 239000004305 biphenyl Substances 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 7
- CBCKQZAAMUWICA-UHFFFAOYSA-N 1,4-phenylenediamine Chemical group NC1=CC=C(N)C=C1 CBCKQZAAMUWICA-UHFFFAOYSA-N 0.000 claims description 6
- 238000006116 polymerization reaction Methods 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 229910001220 stainless steel Inorganic materials 0.000 claims description 5
- 239000010935 stainless steel Substances 0.000 claims description 5
- KZTYYGOKRVBIMI-UHFFFAOYSA-N S-phenyl benzenesulfonothioate Natural products C=1C=CC=CC=1S(=O)(=O)C1=CC=CC=C1 KZTYYGOKRVBIMI-UHFFFAOYSA-N 0.000 claims description 4
- HFACYLZERDEVSX-UHFFFAOYSA-N benzidine Chemical group C1=CC(N)=CC=C1C1=CC=C(N)C=C1 HFACYLZERDEVSX-UHFFFAOYSA-N 0.000 claims description 4
- NHJNWRVCOATWGF-UHFFFAOYSA-N 3-(3-amino-2-phenoxyphenyl)sulfonyl-2-phenoxyaniline Chemical group NC1=CC=CC(S(=O)(=O)C=2C(=C(N)C=CC=2)OC=2C=CC=CC=2)=C1OC1=CC=CC=C1 NHJNWRVCOATWGF-UHFFFAOYSA-N 0.000 claims description 3
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 claims description 3
- 238000010041 electrostatic spinning Methods 0.000 claims description 3
- YJTKZCDBKVTVBY-UHFFFAOYSA-N 1,3-Diphenylbenzene Chemical group C1=CC=CC=C1C1=CC=CC(C=2C=CC=CC=2)=C1 YJTKZCDBKVTVBY-UHFFFAOYSA-N 0.000 claims description 2
- 125000001989 1,3-phenylene group Chemical group [H]C1=C([H])C([*:1])=C([H])C([*:2])=C1[H] 0.000 claims description 2
- LVNDUJYMLJDECN-UHFFFAOYSA-N 5-methylbenzene-1,3-diamine Chemical group CC1=CC(N)=CC(N)=C1 LVNDUJYMLJDECN-UHFFFAOYSA-N 0.000 claims description 2
- ULCOZKFWRBOCGG-UHFFFAOYSA-N benzene-1,4-diol 2-[2-(2-carboxybenzoyl)oxycarbonylbenzoyl]oxycarbonylbenzoic acid Chemical group C(C=1C(C(=O)O)=CC=CC1)(=O)OC(C=1C(C(=O)OC(C=2C(C(=O)O)=CC=CC2)=O)=CC=CC1)=O.C1(O)=CC=C(O)C=C1 ULCOZKFWRBOCGG-UHFFFAOYSA-N 0.000 claims description 2
- RWCCWEUUXYIKHB-UHFFFAOYSA-N benzophenone Chemical compound C=1C=CC=CC=1C(=O)C1=CC=CC=C1 RWCCWEUUXYIKHB-UHFFFAOYSA-N 0.000 claims description 2
- 239000012965 benzophenone Substances 0.000 claims description 2
- USIUVYZYUHIAEV-UHFFFAOYSA-N diphenyl ether Natural products C=1C=CC=CC=1OC1=CC=CC=C1 USIUVYZYUHIAEV-UHFFFAOYSA-N 0.000 claims description 2
- ZZTCPWRAHWXWCH-UHFFFAOYSA-N diphenylmethanediamine Chemical group C=1C=CC=CC=1C(N)(N)C1=CC=CC=C1 ZZTCPWRAHWXWCH-UHFFFAOYSA-N 0.000 claims description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 2
- KRDOSDPABCAONA-UHFFFAOYSA-N n-anilinooxyaniline Chemical group C=1C=CC=CC=1NONC1=CC=CC=C1 KRDOSDPABCAONA-UHFFFAOYSA-N 0.000 claims description 2
- JUJWROOIHBZHMG-UHFFFAOYSA-N pyridine Substances C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 claims description 2
- VHNQIURBCCNWDN-UHFFFAOYSA-N pyridine-2,6-diamine Chemical group NC1=CC=CC(N)=N1 VHNQIURBCCNWDN-UHFFFAOYSA-N 0.000 claims description 2
- 125000006160 pyromellitic dianhydride group Chemical group 0.000 claims description 2
- RDGNXTYBKYUNRW-UHFFFAOYSA-N thiophen-2-ylphosphane Chemical compound PC1=CC=CS1 RDGNXTYBKYUNRW-UHFFFAOYSA-N 0.000 claims description 2
- GEYOCULIXLDCMW-UHFFFAOYSA-N 1,2-phenylenediamine Chemical group NC1=CC=CC=C1N GEYOCULIXLDCMW-UHFFFAOYSA-N 0.000 claims 1
- GUMTZPGHTZFTOR-UHFFFAOYSA-N 4-(4-aminophenyl)-6,6-dimethoxycyclohexa-1,3-dien-1-amine Chemical group C1=C(N)C(OC)(OC)CC(C=2C=CC(N)=CC=2)=C1 GUMTZPGHTZFTOR-UHFFFAOYSA-N 0.000 claims 1
- YGYCECQIOXZODZ-UHFFFAOYSA-N 4415-87-6 Chemical group O=C1OC(=O)C2C1C1C(=O)OC(=O)C12 YGYCECQIOXZODZ-UHFFFAOYSA-N 0.000 claims 1
- ROTAPXZXCLTCFE-UHFFFAOYSA-N [carboxy-(2,3-dimethylphenoxy)carbonyl-phenoxycarbonylsilyl]formic acid Chemical compound CC=1C(=C(C=CC=1)OC(=O)[Si](C(=O)OC1=CC=CC=C1)(C(=O)O)C(=O)O)C ROTAPXZXCLTCFE-UHFFFAOYSA-N 0.000 claims 1
- JQMRSZJEVQNIPB-UHFFFAOYSA-N n,n'-diphenylpropane-1,3-diamine Chemical group C=1C=CC=CC=1NCCCNC1=CC=CC=C1 JQMRSZJEVQNIPB-UHFFFAOYSA-N 0.000 claims 1
- YTVNOVQHSGMMOV-UHFFFAOYSA-N naphthalenetetracarboxylic dianhydride Chemical group C1=CC(C(=O)OC2=O)=C3C2=CC=C2C(=O)OC(=O)C1=C32 YTVNOVQHSGMMOV-UHFFFAOYSA-N 0.000 claims 1
- 125000002023 trifluoromethyl group Chemical group FC(F)(F)* 0.000 claims 1
- 239000003990 capacitor Substances 0.000 abstract description 2
- 239000012429 reaction media Substances 0.000 abstract description 2
- 125000006158 tetracarboxylic acid group Chemical group 0.000 abstract 1
- HLBLWEWZXPIGSM-UHFFFAOYSA-N 4-Aminophenyl ether Chemical compound C1=CC(N)=CC=C1OC1=CC=C(N)C=C1 HLBLWEWZXPIGSM-UHFFFAOYSA-N 0.000 description 16
- 230000009477 glass transition Effects 0.000 description 12
- VLDPXPPHXDGHEW-UHFFFAOYSA-N 1-chloro-2-dichlorophosphoryloxybenzene Chemical compound ClC1=CC=CC=C1OP(Cl)(Cl)=O VLDPXPPHXDGHEW-UHFFFAOYSA-N 0.000 description 10
- 230000005855 radiation Effects 0.000 description 8
- 210000000170 cell membrane Anatomy 0.000 description 5
- 238000002844 melting Methods 0.000 description 5
- 230000008018 melting Effects 0.000 description 5
- QIGBRXMKCJKVMJ-UHFFFAOYSA-N Hydroquinone Chemical compound OC1=CC=C(O)C=C1 QIGBRXMKCJKVMJ-UHFFFAOYSA-N 0.000 description 4
- 210000004027 cell Anatomy 0.000 description 4
- 238000007334 copolymerization reaction Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 229920005575 poly(amic acid) Polymers 0.000 description 3
- -1 polyethylene Polymers 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 230000000630 rising effect Effects 0.000 description 3
- YBRVSVVVWCFQMG-UHFFFAOYSA-N 4,4'-diaminodiphenylmethane Chemical compound C1=CC(N)=CC=C1CC1=CC=C(N)C=C1 YBRVSVVVWCFQMG-UHFFFAOYSA-N 0.000 description 2
- VQVIHDPBMFABCQ-UHFFFAOYSA-N 5-(1,3-dioxo-2-benzofuran-5-carbonyl)-2-benzofuran-1,3-dione Chemical compound C1=C2C(=O)OC(=O)C2=CC(C(C=2C=C3C(=O)OC(=O)C3=CC=2)=O)=C1 VQVIHDPBMFABCQ-UHFFFAOYSA-N 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000013021 overheating Methods 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 150000008064 anhydrides Chemical class 0.000 description 1
- 125000006267 biphenyl group Chemical group 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- RZIPTXDCNDIINL-UHFFFAOYSA-N cyclohexane-1,1,2,2-tetracarboxylic acid Chemical compound OC(=O)C1(C(O)=O)CCCCC1(C(O)=O)C(O)=O RZIPTXDCNDIINL-UHFFFAOYSA-N 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- LTYMSROWYAPPGB-UHFFFAOYSA-N diphenyl sulfide Chemical compound C=1C=CC=CC=1SC1=CC=CC=C1 LTYMSROWYAPPGB-UHFFFAOYSA-N 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 150000003949 imides Chemical class 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000010907 mechanical stirring Methods 0.000 description 1
- OHQOKJPHNPUMLN-UHFFFAOYSA-N n,n'-diphenylmethanediamine Chemical group C=1C=CC=CC=1NCNC1=CC=CC=C1 OHQOKJPHNPUMLN-UHFFFAOYSA-N 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 150000003457 sulfones Chemical class 0.000 description 1
Classifications
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- C08G73/06—Polycondensates having nitrogen-containing heterocyclic rings in the main chain of the macromolecule
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- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Electrochemistry (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)
- Nonwoven Fabrics (AREA)
- Artificial Filaments (AREA)
Abstract
Description
Claims (13)
- 하기 화학식 1, 2, 3 및 4로 표시되는 모노머들로 이루어진 군에서 선택되는 3개 이상의 공중합체로 형성된 코폴리아믹산(copolyamic acid)을 정전기적 방사 및 이미드화하여 형성되는 코폴리이미드 나노-섬유 부직포:
[화학식 1]
[화학식 2]
[화학식 3]
[화학식 4]
,
상기 코폴리이미드 나노-섬유 부직포는 하기의 화학식 5로 표시되며:
[화학식 5]
상기 화학식 5에서, n은 50 내지 300의 정수, m은 50 내지 300의 정수이고, R1 및 R3은 C4 내지 C30의 사산 이무수물(tetracid dianhydride) 모노머 잔기 구조이며, R2 및 R4는 C6 내지 C30의 디아민(diamine) 모노머 잔기 구조이고, 상기 디아민 모노머의 총 몰수 대 상기 사산 이무수물 모노머의 총 몰수의 비율은 1:1임. - 제 1 항에 있어서,
상기 코폴리이미드 나노-섬유는,
상기 화학식 1, 3 및 4로 표시되는 모노머들의 공중합체 또는 상기 화학식 2, 3 및 4로 표시되는 모노머들의 공중합체로 형성되며,
상기 화학식 1, 3 및 4로 표시되는 모노머들의 몰수 비율 또는 상기 화학식 2, 3 및 4로 표시되는 모노머들의 몰수 비율은 1 : 0.05-0.95 : 0.05-0.95인 코폴리이미드 나노-섬유 부직포. - 제 1 항에 있어서,
상기 코폴리이미드 나노-섬유는,
상기 화학식 1, 2 및 3으로 표시되는 모노머들의 공중합체 또는 상기 화학식 1, 2 및 4로 표시되는 모노머들의 공중합체로 형성되며,
상기 화학식 1, 2 및 3으로 표시되는 모노머들의 몰수 비율 또는 상기 화학식 1, 2 및 4로 표시되는 모노머들의 몰수 비율은 0.05-0.95 : 0.05-0.95 : 1인 코폴리이미드 나노-섬유 부직포. - 제 1 항에 있어서,
상기 코폴리이미드 나노-섬유는,
상기 화학식 1, 2, 3 및 4로 표시되는 모노머들의 공중합체로 형성되며, 상기 화학식 1로 표시되는 모노머 및 상기 화학식 2로 표시되는 모노머의 몰수의 합에 대한 상기 화학식 3으로 표시되는 모노머 및 상기 화학식 4로 표시되는 모노머의 몰수의 합의 비율은 1:1인 코폴리이미드 나노-섬유 부직포. - 제 1 항 내지 제 4 항 중 어느 한 항에 있어서,
상기 화학식 5의 R1 및 R3은 각각 벤조페논테트라카르복실 이무수물 잔기(benzophenone tetracarbozylic dianhydride residue), 피로멜리틱 이무수물 잔기(pyromellitic dianhydride residue), 비페닐 이무수물 잔기(biphenyl dianhydride residue), 디페닐 설폰 이미수물 잔기(diphenyl sulfone dianhydride residue), 디페닐 에테르 이무수물 잔기(diphenyl ether sulfone), 나프탈렌 테트라카르복실 이무수물 잔기(naphthalene tetracarboxylic dianhydride residue), 시클로부탄테트라카르복실 이무수물 잔기(cyclobutanetetracarboxylie dianhydride residue), 히드로퀴논 디프탈 이무수물 잔기(hydroquinone diphthalic dianhydride residue), 3,6-가교 알켄 시클로헥산 테트라카르복실 이무수물 잔기(3,6-bridgedalkene cyclohexane tetracarboxylic dianhydride residue), 디메틸 디페닐실란 테트라카르복실 이무수물 잔기(dimethyldiphenylsilane tetracarboxylic dianhydride residue), 비스(트리플루오로메틸)디페닐메탄 테트라카르복실 이무수물 잔기(bis(trifluoromethyl)diphenylmethane tetracarboxylic dianhydride residue), 디플루오로멜리틱 이무수물 잔기(difluoropyromellitic dianhydride residue), 터페닐 테트라카르복실 이무수물 잔기(terphenyl tetracarboxylic dianhydride residue), 시클로헥산테트라카르복실 이무수물 잔기(cyclohexanetetracarboxylic dianhydride residue), 디페닐 설피드 이무수물 잔기(diphenylsulfide dianhydride residue)의 이무수물 잔기 구조 중 어느 하나로 선택되는 코폴리이미드 나노-섬유 부직포. - 제 1 항 내지 제 4 항 중 어느 한 항에 있어서,
상기 화학식 R2 및 R4는 각각 옥시디아닐린 잔기(oxydianiline residue), p-페닐렌디아민 잔기(p-phenylenediamine residue), 3,3-디메톡실 벤지딘 잔기(3,3 dimethoxyl benzidine residue), 메틸렌 디아닐린 잔기(methylene dianiline residue), m-페닐렌 디아민 잔기(m-phenylene dianmine residue), 벤지딘 잔기(benzidine residue), 비스(아미노페녹시페닐) 설폰 잔기(bis(aminophenoxyphenyl) sulfone residue), 2-메틸 디페닐 에테르 디아민 잔기(2-methyl diaphenyle ether diamine residue), 디페녹시 트리페닐 포시핀 옥시드 디아민 잔기(diphenoxy thiphenyl phosphine oxide diamine residue), 트리페닐 디에테르 디아민 잔기(triphenyl diether diamine residue), 디페녹시 비스페놀 a 디아민 잔기(diphenoxy bisphenol a diamine residue), 2,6-피리딘 디아민 잔기(2,6-pyridine diamine residue), 2,6-피리미딘 비페닐 디아민 잔기(2,6-pyridine biphenyl diamine residue), (3,3' 디메틸)디페닐 메탄 디아민 잔기((3,3' dimethyl) diphenyl methane diamine residue), 디페녹시 디페닐 케톤 디아민 잔기(diphenoxy diphenyl ketone diamine residue), 5-메틸-m-페닐렌디아민 잔기(5-methyl-m-phenylenediamine residue)의 디아민 잔기 구조 중 어느 하나로 선택되는 것인 코폴리이미드 나노-섬유 부직포. - 제 1 항 내지 제 4 항 중 어느 한 항에 있어서,
상기 코폴리이미드 나노-섬유 부직포는 20 내지 30%의 파단 신율, 80 내지 86%의 다공성, 20 내지 25 MPa의 인장 강도, 1 × 107 내지 1.5 × 107 V/m의 절연 파괴 강도 및 510 내지 560℃의 열 분해 온도를 갖는 것인 코폴리이미드 나노-섬유 부직포. - 제 1 항에 따른 코폴리이미드 나노-섬유 부직포의 제조 방법에 있어서,
(1) 3개 이상의 상기 이무수물 및 디아민 모노머를 정제하여, 적당한 양의 용매와 함께 중합 반응 케틀에 첨가하고, 코폴리아믹산(폴리이미드 전구체)의 용액을 수득하기 위한 기간 동안 교반 하에 반응시켜, 고전압 전계에서 상기 코폴리아믹산 용액을 정전기적으로 방사하고, 집전장치로서 스테인레스 스틸 롤러를 사용하여 집전시켜 코폴리아믹산의 나노-섬유의 부직포를 수득하는 단계; 및
(2) 상기 수득된 코폴리아믹산의 나노-섬유의 부직포를 고온 노에 넣고 이미드화를 위해 가열하는 단계를 포함하는 코폴리이미드 나노-섬유 부직포의 제조 방법. - 제 8 항에 있어서,
상기 용매는 극성 용매인 것인 코폴리이미드 나노-섬유 부직포의 제조 방법. - 제 8 항에 있어서,
상기 극성 용매는 N,N-디메틸 포름아미드(DMF) 또는 N,N-디메틸 아세트아미드(DMAC)인 것인 코폴리이미드 나노-섬유 부직포의 제조 방법. - 제 8 항에 있어서,
상기 반응 케틀의 중합 반응 온도는 0 내지 30℃이며, 반응 시간은 1 내지 10 시간이고, 고전압 전계의 전계 강도는 250 내지 300 Kv인 것인 코폴리이미드 나노-섬유 부직포의 제조 방법. - 제 8 항 또는 제 11 항에 있어서,
상기 이미드화 공정의 온도 상승 프로그램은 20℃/분의 온도 상승 속도로 실온에서 200 내지 250℃까지 가열하고, 상기 온도에서 30분 동안 유지하며, 5℃/분의 온도 상승 속도에서 330 내지 370℃까지 가열하고, 상기 온도에서 30분 동안 유지하며, 전력원을 차단하는 단계를 포함하는 것인 코폴리이미드 나노-섬유 부직포의 제조 방법. - 제 1 항에 따른 코폴리이미드 나노-섬유 부직포의 전지 막에서의 용도.
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