KR20200041900A - 플루오린화 중합체의 수성 분산물을 안정화하기 위한 방법 - Google Patents
플루오린화 중합체의 수성 분산물을 안정화하기 위한 방법 Download PDFInfo
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Abstract
Description
| 합성 | 중합체 | VDF/HFP 몰:몰 | Tm (℃) | MV(kP) (100 sec-1에서) |
| 실시예 1 | A1 | 99:1 | 153.6 | 67 |
| 실시예 2 | A2 | 100:0 | 160.0 | 23 |
| 실시예 3 | B1 | 97:3 | 144.0 | 31 |
| 실시예 4 | B2 | 97:3 | 140.0 | 22 |
| 실시예 5 | C1 | 87.5:12.5 | 89.0 | 49 |
| 실시예 6 | C2 | 87.5:12.5 | 81.2 | 14 |
| 실시예 7 | D1 | 78.5:21.5 | (*)Tg=-21.1 | 40 |
| 실시예 8 | D2 | 78.5:21.5 | (*)Tg=-15.9 | 23 |
| 일수 | 라텍스 C1(*) | 라텍스 1B | 라텍스 1A | |||
| S.C.% | dp(nm) | S.C.% | dp(nm) | S.C.% | dp(nm) | |
| 3 | 22.87 | 296 | 22.87 | 296 | 21.62 | 296 |
| 10 | 22.66 | n/p | 22.67 | n/p | 21.48 | n/p |
| 45 | 20.48 | 348 | 22.71 | n/p | 21.88 | n/p |
| 50 | 응고됨 | 22.63 | 305 | 21.83 | 324 | |
| 100 | - | 22.52 | 315 | 21.69 | 290 | |
| 150 | - | 22.06 | 303 | 20.73 | 300 | |
| 200 | - | 18.89 | 294 | 20.23 | 300 | |
| 일수 | 라텍스 C2(*) | 라텍스 C3(*) | 라텍스 2 | |||
| S.C.% | dp(nm) | S.C.% | dp(nm) | S.C.% | dp(nm) | |
| 6 | 25.01 | 220 | 23.95 | 220 | 24.0 | 220 |
| 20 | 25.46 | n/p | 24.21 | n/p | n/p | n/p |
| 55 | 22.7 | 248 | 25.0 | 236 | 25.52 | 216 |
| 62 | 응고됨 | 25.03 | 238 | 25.42 | 220 | |
| 100 | - | 24.62 | 265 | 25.45 | 223 | |
| 132 | - | 7.91 | 365 | 25.35 | 223 | |
| 150 | - | 응고됨 | 24.48 | 222 | ||
| 200 | - | - | 24.96 | 230 | ||
| 일수 | 라텍스 3U | 라텍스 2U | ||
| S.C.% | dp(nm) | S.C.% | dp(nm) | |
| 10 | 53.64 | 240 | 52.76 | 220 |
| 50 | 53.30 | 247 | 52.03 | 237 |
| 100 | 52.52 | 254 | 52.12 | 250 |
| 150 | 52.52 | 249 | 52.68 | 241 |
| 170 | 39.03 | n/p | 52.35 | 241 |
| 샘플 | 조정된 pH | 중합체의 색상 | 플루오라이드 |
| 중합체 A2의 라텍스로부터 | 그대로의 상태 (pH = 2.12) | 백색 | 215 |
| pH = 6.90으로 조정됨 | 백색 | 250 | |
| pH = 9.01로 조정됨 | 황색을 띰 | 275 | |
| 중합체 B2의 라텍스로부터 | 그대로의 상태 (pH = 2.31) | 백색 | 225 |
| pH = 7.0으로 조정됨 | 백색 | 260 | |
| pH = 9.02로 조정됨 | 황색을 띰 | 285 |
Claims (15)
- 하기 단계들을 포함하는, (반)결정질 VDF-기반 중합체[중합체(F)]의 입자를 포함하는 수성 분산물[분산물(Da)]을 안정화하기 위한 방법:
(I) 상기 분산물(Da)을 제공하는 단계;
(II) 상기 분산물(Da)을 적어도 하나의 염기와 접촉시켜, pH가 6.5 이상 및 9.0 미만인 VDF-기반 (반)결정질 중합체 수성 분산물[분산물(Db)]을 제공하도록 하는 단계;
(III) 단계 (II)에서 수득된 상기 분산물(Db)을, 6 내지 15개의 탄소 원자를 포함하는 수소화 선형 알킬 사슬 및 2개 또는 3개의 탄소 원자를 포함하는 (폴리)알콕실화 기를 포함하는 적어도 하나의 비이온성 계면활성제[화합물(S)]와 접촉시켜, 안정화된 수성 분산물[분산물(DF)]을 제공하도록 하는 단계. - 제1항에 있어서, 상기 화합물(S)은 하기 화학식 S-I에 따르는 것인, 방법:
[화학식 S-I]
A-(R1-O)n-(R2-O)n*-(R3-O)n**-H
(상기 식에서,
A는 6 내지 15개의 탄소 원자를 포함하는 수소화 선형 알킬 사슬이고;
R1, R2 및 R3은 각각 독립적으로 2개 또는 3개의 탄소 원자를 포함하는 알콕실화 기이고;
n은 2 내지 100의 정수이고;
n* 및 n**는 각각 독립적으로 0 내지 100의 정수임). - 제2항에 있어서, 상기 화학식 S-I에서,
- n**는 0이고, n*는 2 내지 80의 정수이고, n은 2 내지 50의 정수이고, 서로 동일한 R1과 R2는 2개 또는 3개의 탄소 원자를 포함하는 알콕실화 기이거나;
- n*와 n**는 둘 모두 0이고, R1은 2개의 탄소 원자를 포함하는 알콕실화 기이고, n은 10 내지 80의 정수이거나;
- 서로 동일한 n과 n**는 2 내지 50의 정수이고, n*는 10 내지 80의 정수이고, 서로 동일한 R1과 R3은 2개의 탄소 원자를 포함하는 알콕실화 기이고, R2는 3개의 탄소 원자를 포함하는 알콕실화 기인, 방법. - 제1항 내지 제3항 중 어느 한 항에 있어서, 화합물(S)은 제2항 또는 제3항에 정의된 바와 같은 둘 이상의 화합물(S)의 혼합물인, 방법.
- 제1항 내지 제4항 중 어느 한 항에 있어서, 상기 중합체(F)는 비닐리덴 플루오라이드(VDF)로부터 유도되는 반복 단위, 적어도 하나의 친수성 (메트)아크릴 단량체[단량체(MA)]로부터 유도되는 반복 단위, 및 선택적으로, VDF 및 상기 단량체(MA)와 상이한 적어도 하나의 다른 공단량체[공단량체(C)]로부터 유도되는 반복 단위를 포함하는, 방법.
- 제5항에 있어서, 상기 공단량체(C)는 하기로부터 선택되는, 방법:
- 수소화 공단량체[공단량체(CH)], 더 바람직하게는 에틸렌, 프로필렌, 비닐 단량체, 예컨대 비닐 아세테이트뿐만 아니라, 스티렌 단량체, 예컨대 스티렌 및 p-메틸스티렌을 포함하는 군에서 선택되는 공단량체(CH); 또는
- 플루오린화 공단량체[공단량체(CF)], 더 바람직하게는 하기를 포함하는 군에서 선택되는 공단량체(CF):
(a) C2-C8 플루오로- 및/또는 퍼플루오로올레핀, 예컨대 테트라플루오로에틸렌(TFE), 헥사플루오로프로필렌(HFP), 펜타플루오로프로필렌 및 헥사플루오로이소부틸렌;
(b) C2-C8 수소화 모노플루오로올레핀, 예컨대 비닐 플루오라이드, 1,2-디플루오로에틸렌 및 트리플루오로에틸렌;
(c) CH2=CH-Rf0(여기서, Rf0은 C1-C6 퍼플루오로알킬 기임);
(d) 클로로- 및/또는 브로모- 및/또는 요오도-C2-C6 플루오로올레핀, 예컨대 클로로트리플루오로에틸렌(CTFE);
(e) CF2=CFORf1(여기서, Rf1은 C1-C6 플루오로- 또는 퍼플루오로알킬 기, 예를 들어 -CF3, -C2F5, -C3F7임);
(f) CF2=CFOX0(여기서, X0은 C1-C12 옥시알킬 기, 또는 하나 이상의 에테르 기를 갖는 C1-C12 (퍼)플루오로옥시알킬 기, 예를 들어 퍼플루오로-2-프로폭시-프로필 기임);
(g) CF2=CFOCF2ORf2(여기서, Rf2는 C1-C6 플루오로- 또는 퍼플루오로알킬 기, 예를 들어 -CF3, -C2F5, -C3F7 또는 하나 이상의 에테르 기를 갖는 C1-C6 (퍼)플루오로옥시알킬 기, 예를 들어 -C2F5-O-CF3임);
(h) 하기 화학식의 (퍼)플루오로디옥솔:
(상기 식에서, 서로 동일하거나 상이한 각각의 Rf3, Rf4, Rf5, 및 Rf6은 독립적으로 플루오린 원자, 선택적으로 하나 이상의 산소 원자를 포함하는 C1-C6 플루오로- 또는 퍼(할로)플루오로알킬 기, 예를 들어 -CF3, -C2F5, -C3F7, -OCF3, -OCF2CF2OCF3임). - 제6항에 있어서, 상기 공단량체(CF)는 테트라플루오로에틸렌(TFE), 트리플루오로에틸렌(TrFE), 클로로트리플루오로에틸렌(CTFE), 헥사플루오로프로필렌(HFP), 퍼플루오로메틸 비닐 에테르(PMVE), 퍼플루오로프로필 비닐 에테르(PPVE) 및 비닐 플루오라이드를 포함하는, 더 바람직하게는 이로 이루어진 군에서 선택되는, 방법.
- 제8항에 있어서, 상기 단량체(MA)는 아크릴산, 메타크릴산, 하이드록시에틸 (메트)아크릴레이트, 하이드록시프로필(메트)아크릴레이트, 및 하이드록시에틸헥실(메트)-아크릴레이트를 포함하는 군으로부터 선택되는, 방법.
- 제1항에 있어서, 상기 중합체(F)의 입자의 평균 크기는 ISO 13321에 따라 측정될 때, 20 nm 초과, 더 바람직하게는 30 nm 초과, 훨씬 더 바람직하게는 50 nm 초과; 및/또는 600 nm 미만, 더 바람직하게는 400 nm 미만, 훨씬 더 바람직하게는 350 nm 미만인, 방법.
- 제1항 내지 제10항 중 어느 한 항에 있어서, 단계 (II)의 종료 시점에서, pH가 6.5 내지 8.7, 바람직하게는 6.5 내지 8.5, 훨씬 더 바람직하게는 7 내지 8인 분산물(Db)이 제공되는, 방법.
- 제1항 내지 제11항 중 어느 한 항에 정의된 바와 같은 분산물(DF), 적어도 하나의 비-전기활성 무기 충전제 재료, 및 선택적으로, 하나 이상의 추가의 첨가제를 포함하는, 수성 코팅 조성물[조성물(AC)].
- 하기 단계들을 포함하는, 전기화학 전지에 사용하기에 특히 적합한 복합 세퍼레이터(composite separator)의 제조 방법:
(1) 적어도 한쪽 표면을 갖는 다공성 기재를 제공하는 단계;
(2) 제12항에 따른 조성물(AC)을 제공하는 단계;
(3) 상기 조성물(AC)을 상기 다공성 기재의 적어도 한쪽 표면 상에 적용하여 코팅 조성물 층을 제공하는 단계; 및
(4) 적어도 60℃의 온도에서 상기 코팅 조성물 층을 건조시켜 상기 복합 세퍼레이터를 제공하는 단계. - 제13항에 있어서, 상기 다공성 기재는 무기, 유기 및 천연 발생 재료로부터 제조된 다공성 막, 구체적으로는 부직 섬유(목면, 폴리아미드, 폴리에스테르, 유리), 중합체(폴리에틸렌, 폴리프로필렌, 폴리(테트라플루오로에틸렌), 폴리(비닐 클로라이드), 및 특정의 섬유질 천연 발생 물질(예를 들어, 석면)로부터 제조된 다공성 막으로부터 선택되는, 방법.
- 제1항 내지 제11항 중 어느 한 항에 정의된 바와 같은 분산물(DF), 분말형 전극 재료, 및 선택적으로, 전기전도성-부여 첨가제 및/또는 점도 개질제를 포함하는, 수성 전극-형성 조성물.
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| PCT/EP2018/057008 WO2018104564A2 (en) | 2017-08-11 | 2018-03-20 | Method for stabilizing aqueous dispersions of fluorinated polymers |
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| KR102576131B1 (ko) * | 2017-08-11 | 2023-09-08 | 솔베이 스페셜티 폴리머스 이태리 에스.피.에이. | 플루오린화 중합체의 수성 분산물을 안정화하기 위한 방법 |
| EP3994741A1 (en) * | 2019-07-01 | 2022-05-11 | Solvay Specialty Polymers Italy S.p.A. | Composition for secondary battery electrodes |
| EP4190826A4 (en) * | 2020-07-28 | 2024-09-04 | Daikin Industries, Ltd. | METHOD FOR PRODUCING AN AQUEOUS DISPERSION OF FLUORINOUS ELASTOMER AND AQUEOUS DISPERSION OF FLUORINOUS ELASTOMER |
| WO2022059271A1 (ja) * | 2020-09-17 | 2022-03-24 | ダイキン工業株式会社 | 含フッ素重合体及びその製造方法 |
| US20240186522A1 (en) * | 2021-03-22 | 2024-06-06 | Solvay Specialty Polymers Italy S.P.A. | Composition for electrodes |
| CN118307705A (zh) * | 2023-01-06 | 2024-07-09 | 宁德时代新能源科技股份有限公司 | 含氟聚合物、其制备方法和应用、绝缘浆料、绝缘涂层、二次电池及用电装置 |
| CN118307709A (zh) * | 2023-01-09 | 2024-07-09 | 宁德时代新能源科技股份有限公司 | 含氟聚合物、水性底涂浆料、二次电池及用电装置 |
| CN119039506A (zh) * | 2023-05-29 | 2024-11-29 | 宁德时代新能源科技股份有限公司 | 含氟聚合物、制备方法、负极浆料、负极极片、二次电池及用电装置 |
| EP4600291A1 (en) * | 2024-02-09 | 2025-08-13 | Joanneum Research Forschungsgesellschaft mbH | Dispersion of particles of a fluoropolymer, preparation method, and use |
| WO2025207469A1 (en) * | 2024-03-28 | 2025-10-02 | Arkema Inc. | Improved heat-aged stability when blending acrylic latex and pvdf-acrylic hybrid dispersions |
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| WO2018104564A3 (en) | 2018-07-19 |
| EP3665216B1 (en) | 2023-12-13 |
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| US20200362118A1 (en) | 2020-11-19 |
| US11555094B2 (en) | 2023-01-17 |
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| CN111051403A (zh) | 2020-04-21 |
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