KR101085692B1 - 미세다공성 강화 부직포 고분자 분리막,그 제조방법 및 용도 - Google Patents
미세다공성 강화 부직포 고분자 분리막,그 제조방법 및 용도 Download PDFInfo
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- KR101085692B1 KR101085692B1 KR1020097019580A KR20097019580A KR101085692B1 KR 101085692 B1 KR101085692 B1 KR 101085692B1 KR 1020097019580 A KR1020097019580 A KR 1020097019580A KR 20097019580 A KR20097019580 A KR 20097019580A KR 101085692 B1 KR101085692 B1 KR 101085692B1
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Abstract
Description
분리막구분 | 온도별 수축 비율 (%) | ||||||
90℃ | 100℃ | 110℃ | 130℃ | 150℃ | 170℃ | 180℃ | |
PP | 3.6 | 11.6 | 14.2 | - | 변형 | 융해 | - |
PE | 4 | 7.6 | 변형 | 융해 | - | - | - |
실시예1 | 0 | - | 0.6 | 1.0 | 1.2 | 1.4 | 1.6 |
실시예3 | 0 | - | 0.4 | 0.8 | 1.2 | 1.2 | 1.4 |
실시예6 | 0 | - | 0.5 | 1.1 | 1.2 | 1.2 | 1.6 |
실시예9 | 0 | - | 0.3 | 0.8 | 1.0 | 1.1 | 1.4 |
실시예12 | 0 | - | 0.4 | 0.8 | 0.9 | 1.1 | 1.4 |
실시예15 | 0 | - | 0.5 | 0.8 | 1.1 | 1.3 | 1.4 |
실시예17 | 0 | - | 0.6 | 1.0 | 1.3 | 1.5 | 1.8 |
실시예19 | 0 | - | 0.3 | 0.7 | 0.8 | 1.0 | 1.2 |
Claims (10)
- 삭제
- 수용성 고분자 100 중량부, 소수성 단량체 30~500 중량부, 친수성 단량체 0~200 중량부, 개시제 1~5중량부를 공중합하여 고분자 콜로이드 유액을 제조한 후, 상기 제조된 고분자 콜로이드 유액의 고형분 함량을 100%로 기준하여, 무기 충전제 0~100%, 가소제 20~100%를 첨가하여 획득한 싸이즈제를 부직포 양면에 코팅하고 건조하여 제조되며,상기 부직포는 폴리아크릴로니트릴, 나일론, 폴리비닐포말, 폴리올레핀 또는 폴리에스테르 섬유로 제조한 부직포이며,상기 수용성 고분자는 폴리비닐알콜, 폴리옥시에틸렌, 폴리비닐피롤리돈 또는 폴리비닐피롤리돈 수용성 공중합체로서, 상기 폴리비닐알콜의 중합도는 1700~2400이고 가수분해도는 50~99이며, 상기 폴리옥시에틸렌의 분자량은 10만~200만이며, 상기 폴리비닐피롤리돈 또는 폴리비닐피롤리돈 수용성 공중합체의 분자량은 500~10만이며;상기 소수성 단량체는 하기 화학식 1로 표시되는 소수성 단량체 중 적어도 하나이며:[화학식 1]CH2=CR1R2상기 화학식 1에서,R1은 -H 또는 -CH3이고,R2는 -C6H5, -OCOCH3, -COOCH3, -COOCH2CH3, -COOCH2CH2CH2CH3, -COOCH2CH(CH2CH3)CH2CH2CH2CH3 또는 -CN이며;상기 친수성 단량체는 하기 화학식2로 표시되는 친수성 단량체 중 적어도 하나이며:[화학식 2]CHR3=CR4R5상기 화학식 2에서,R3은 -H, -CH3 또는 -COOLi이고,R4는 -H, -CH3 또는 -COOLi이고,R5는 -COOLi, -CH2COOLi, -COO(CH2)6SO3Li, -CONH2, -CONHCH3, , -CONHCH2CH3, -CON(CH3)2 또는 -CON(CH2CH3)2이며;상기 개시제는 1) 과황산 암모늄, 2) 과황산 칼륨, 3) 과산화 수소, 4) 2,2'-아조비스(2-메틸 프로피온아미딘 디하이드로클로라이드), 또는 5) 상기 과황산 암모늄, 과황산 칼륨, 과산화 수소, 또는 2,2'-아조비스가 Na2SO3 또는 FeSO4와 구성하는 산화환원반응 개시제이며;상기 무기 충전제는 카본화이트, 산화 알루미늄, 이산화 티타늄, 산화 게르마늄, 산화 마그네슘, 탄산 칼슘 또는 유리섬유이며; 및상기 가소제는 프로판디올, 벤질알콜, 노말 부틸 알콜, 이소프로판올, 트리에틸 인산, 디에틸 인산, 트리메틸 인산, 트리부틸 인산 중의 어느 하나 또는 적어도 두 가지 이상의 혼합물임을 특징으로 하는 미세다공성 강화 부직포 고분자 분리막.
- 제2항에 있어서,상기 무기 충전제 첨가 시에 실란 결합제를 더 첨가하며, 상기 실란 결합제의 첨가량은 무기 충전제 중량의 0.5~5.0%이고, 상기 실란 결합제는 3-아미노프로필트리에톡시실란, 2-아미노에틸-3-아미노프로필트리메톡시실란, 3-에피히드린알콜트리메톡시실란, 비닐트리에톡시실란, 비닐트리메톡시실란 또는 비닐트리(2-메톡시에톡시)실란인 것을 특징으로 하는 미세다공성 강화 부직포 고분자 분리막.
- 제2항에 있어서,유기 충전제를 더 첨가하며, 상기 유기 충전제는 폴리에틸렌 분말, 폴리에틸 렌 왁스 분말 또는 산화 폴리에틸렌 왁스 분말 중의 하나인 것을 특징으로 하는 미세다공성 강화 부직포 고분자 분리막.
- (a) 수용성 고분자 100 중량부, 친수성 단량체 0~200 중량부에 물을 첨가하여 용해될 때까지 가열하며 교반하고, 반응기 온도를 30℃~90℃로 유지시키고 소수성 단량체 30~500 중량%를 1회 또는 다수회에 걸쳐 또는 점적의 방법으로 반응기 내에 첨가하고 개시제 1~5 중량부를 첨가하여 4~35 시간 동안 중합반응시켜 고분자 콜로이드 유액을 제조하는 단계;(b) 상기 고분자 콜로이드 유액의 고형분 함량을 100%로 기준하여, 상기 고분자 콜로이드 유액에 무기 충전제 0~100%, 가소제 20~100%를 첨가하고 균일하게 교반하여 2~10시간 연마한 후 얻어진 싸이즈제를 공극이 200목(目) 이하인 스크린을 이용하여 연마되지 않은 큰 과립 물질을 제거하여 고분자 콜로이드 싸이즈제를 제조하는 단계; 및(c) 상기 제조한 수용성 고분자 콜로이드 싸이즈제를 부직포 양면에 균일하게 코팅하고 건조하여 미세다공성 강화 부직포 고분자 분리막을 제조하는 단계;를 포함하며,상기 부직포는 폴리아크릴로니트릴, 나일론, 폴리비닐포말, 폴리올레핀 또는 폴리에스테르 섬유로 제조한 부직포 중 하나이며, 상기 부직포의 두께는 50㎛ 이하이고, 공극은 40% 이상이고, 공극 직경은 5~200㎛이고, 부직포의 면적당 무게는 25g/m2 이하인 것을 특징으로 하는 상기 제2항의 미세다공성 강화 부직포 고분자 분리막의 제조방법.
- 제5항에 있어서,상기 (a)단계에서, 3중량부를 초과하지 않는 보조제를 더 첨가하고, 상기 보조제는 도데칸 황산염, 도데실벤젠 황산염, 비닐 황산염 중의 어느 하나이며, 상기 개시제는 반응 과정에 점적의 방법으로 첨가하거나 다수회에 걸쳐 첨가하는 것을 특징으로 하는 미세다공성 강화 부직포 고분자 분리막의 제조방법.
- 제5항에 있어서,상기 (a)단계에서 중합반응 시 실란 결합제를 첨가하거나, 상기 (b)단계에서 콜로이드 싸이즈제 제조 과정에 무기 충전제와 동시에 실란 결합제를 첨가하며, 상기 실란 결합제의 첨가량은 무기 충전제 중량의 0.5~5.0%이고, 상기 실란 결합제는 3-아미노프로필트리에톡시실란, 2-아미노에틸-3-아미노프로필트리메톡시 실란, 3-에피히드린알콜트리메톡시실란, 비닐트리에톡시실란, 비닐트리메톡시실란 또는 비닐트리(2-메톡시에톡시)실란인 것을 특징으로 하는 미세다공성 강화 부직포 고분자 분리막의 제조방법.
- 제5항에 있어서,상기 부직포의 공극율은 50~70%이며, 공극 직경은 8100㎛이며, 부직포 면적당 중량은 10~20g/m2 인 것을 특징으로 하는 미세다공성 강화 부직포 고분자 분리막의 제조방법.
- 제5항에 있어서,고분자 콜로이드 유액 중의 고형분 함량을 100%로 기준하여, (b)단계에서 유기 충전제 5.0~20%를 더 첨가하고, 상기 유기 충전제는 폴리에틸렌 분말, 폴리에틸렌 왁스 분말 또는 산화 폴리에틸렌 왁스 분말 중의 어느 하나인 것을 특징으로 하는 미세다공성 강화 부직포 고분자 분리막의 제조방법.
- 제2항 내지 제4항 중의 어느 한 항에 따른 미세다공성 강화 부직포 고분자 분리막을 리튬이온 전지, 슈퍼 축전기 또는 전지/슈퍼축전소자 제조에 활용한 제품.
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KR101991436B1 (ko) | 2018-01-23 | 2019-09-30 | 연세대학교 산학협력단 | 홍합 모사 접착성 자기조립체를 활용한 기체 분리막 및 이의 제조방법 |
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DE112008001340T5 (de) | 2010-04-22 |
CN101226994A (zh) | 2008-07-23 |
JP2010520591A (ja) | 2010-06-10 |
WO2009079889A1 (en) | 2009-07-02 |
KR20090123894A (ko) | 2009-12-02 |
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CN101226994B (zh) | 2010-06-30 |
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