KR102095176B1 - 폴리머 코팅된 금속 기재의 생산 방법 및 폴리머 코팅이 제공된 금속 스트립 - Google Patents
폴리머 코팅된 금속 기재의 생산 방법 및 폴리머 코팅이 제공된 금속 스트립 Download PDFInfo
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Abstract
Description
도 2는 연신 비율의 함수로서, 에이징 이후 연신된 필름의 시차주사칼로리측정(DSC)의 곡선을 나타낸다.
도 3은 캐스트 필름 B의 DSC 곡선을 나타낸다.
도 4는 MDR = 4.6의 연신 비율로 연신된 필름 B의 DSC 곡선을 나타낸다.
폴리에스테르 필름 레시피(recipe) | |||
코드 | 접착층 | 주층 | 상층 |
A | 70% PETg 30% CHDM-PET |
100% CHDM-PET | 100% CHDM-PET |
B | 70% PETg 30% IPA-PET |
100% IPA-PET | 100% IPA-PET |
C | 70% PETg 30% IPA-PET |
67% IPA-PET 33% TiO2 MB |
100% IPA-PET |
D | 100% IPA-PET | 67% IPA-PET 33% TiO2 MB |
70% PETg 30% IPA-PET |
E | 75% IPA-PET 25% PBT |
75% IPA-PET 25% PBT |
75% IPA-PET 25% PBT |
다양한 기계 연신 비율(MDR)에서의, 본 발명의 LDO 공정에 의한 캐스트 폴리에스테르 필름 및 폴리에스테르 필름에 대한, 가로 및 길이 방향에서 측정된 기계적 특성 (시험 속도 10mm/분) |
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길이 방향 | 가로 방향 | |||||||||
항복* | 파단 | 모듈러스 | 항복* | 파단 | 모듈러스 | |||||
변형률 (%) |
응력 (MPa) |
변형률 (%) |
응력 (MPa) |
MPa | 변형률 (%) |
응력 (MPa) |
변형률 (%) |
응력 (MPa) |
MPa | |
캐스트 필름 | 3.1 | 51 | 640 | 87 | 2120 | 3.2 | 57 | 555 | 76 | 2300 |
LDO, MDR=3.3 | 3.3 | 76 | 160 | 230 | 3530 | 3.3 | 61 | 700 | 61 | 2170 |
LDO, MDR=4.0 | - |
38 | 290 | 6960 | 4.6 | 62 | 870 | 84 | 2110 | |
LDO, MDR=4.2 | - |
41 | 320 | 6900 | 4.5 | 63 | 790 | 73 | 2200 | |
LDO, MDR=4.8 | - |
28 | 370 | 8030 | 4.7 | 61 | 715 | 61 | 2120 |
대기 보관 후의 폴리에스테르 필름 A의 연성(연성은 상이한 시험 속도에서 결정한, 10개 시료에 대한 연성 파괴(본문 참조)의 퍼센트로서 나타난다) |
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기계 방향 | 가로 방향 | |||
시험 속도 | 10mm/분 | 400mm/분 | 10mm/분 | 400mm/분 |
캐스트 필름 | 90 | 0 | 60 | 0 |
LDO, MDR=3.3 | 100 | 100 | 10 | 0 |
LDO, MDR=4.0 | 100 | 100 | 100 | 80 |
LDO, MDR=4.2 | 100 | 100 | 100 | 100 |
LDO, MDR=4.8 | 100 | 100 | 100 | 100 |
시험 속도 40mm/분에서의, 본 발명의 LDO 공정들(표 1에 의한 필름 레시피들)에 의한 캐스트 폴리에스테르 필름 및 폴리에스테르 필름의, 가로 및 길이 방향에서 측정한 기계적 특성 |
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길이 방향 | 가로 방향 | |||||||
|
항복* | 파단 | 모듈러스 | 항복* | 파단 | 모듈러스 | ||
응력 (MPa) |
변형률 (%) |
응력 (MPa) |
MPa | 응력 (MPa) |
변형률 (%) |
응력 (MPa) |
MPa | |
캐스트 필름 (레시피 B) |
55 | 780 | 77 | 1690 | 53 | 790 | 80 | 1605 |
캐스트 필름 (레시피 C) |
52 | 710 | 60 | 1940 | 57 | 670 | 60 | 1970 |
캐스트 필름 (레시피 D) |
52 | 710 | 60 | 1940 | 57 | 670 | 60 | 1970 |
캐스트 필름 (레시피 E) |
48 | 710 | 55 | 1550 | 44 | 770 | 67 | 1520 |
LOD 필름 (레시피 B) |
- | 24 | 300 | 6370 | 45 | 126 | 34 | 1870 |
LOD 필름 (레시피 C) |
- | 18 | 290 | 7200 | 40 | 690 | 53 | 1680 |
LOD 필름 (레시피 D) |
- | 18 | 290 | 7200 | 40 | 690 | 53 | 1680 |
LOD 필름 (레시피 E) |
- | 19 | 350 | 7320 | 37 | 180 | 30 | 1540 |
생산 직후 및 대기 조건에서 2주 보관 후의, 400mm/분 시험 속도에서 측정한 폴리에스테르 필름의 연성 |
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기계 방향 | 가로 방향 | |||
생산 직후 | 보관 이후 | 생산 직후 | 보관 이후 | |
캐스트 필름 (레시피 B) |
100 | 80 | 100 | 100 |
캐스트 필름 (레시피 C) |
100 | 100 | 100 | 100 |
캐스트 필름 (레시피 D) |
100 | 100 | 100 | 100 |
캐스트 필름 (레시피 E) |
100 | 70 | 100 | 25 |
LOD 필름 (레시피 B) |
n.d. | 100 | n.d. | 100 |
LOD 필름 (레시피 C) |
n.d. | 100 | n.d. | 100 |
LOD 필름 (레시피 D) |
n.d. | 100 | n.d. | 100 |
LOD 필름 (레시피 E) |
n.d. | 100 | n.d. | 100 |
121℃에서 60분 동안, 다양한 용액 중에서 살균한 후의 접착 등급 [0(우수) 내지 5(불량)] | |||||
실시예 | 폴리머 필름 타입 | 살균 용액 | |||
1 | 2 | 3 | 4 | ||
실시예 2 | LDO 필름, 레시피 B | 0 | 2 | 5 | 5 |
실시예 3 | LDO 필름, 레시피 C | 0 | 0 | 4 | 5 |
실시예 4 | LDO 필름, 레시피 D | 0 | 1 | 4 | 5 |
실시예 5 | LDO 필름, 레시피 E | 0 | 0 | 4 | 5 |
비교예 1 | 압출 코팅, 레시피 B | 0 | 2 | 5 | 5 |
비교예 2 | 압출 코팅, 레시피 C | 0 | 1 | 4 | 5 |
비교예 3 | 압출 코팅, 레시피 E | 0 | 0 | 3 | 5 |
Claims (7)
- 하기의 단계를 포함하는 폴리머 코팅된 금속 기재의 생산 방법에 있어서,
- 기재로서 금속 스트립을 제공하는 단계;
- 코팅용 폴리머 필름을 상기 기재 상에 제공하는 단계; 및
- 상기 기재와 폴리머 필름 사이의 접착을 촉진하기 위해 선택적으로 접착층을 제공하는 단계;
상기 폴리머 필름은 하기의 단계에 의해 생산된 하나 이상의 층으로 이루어지고,
- 폴리머 과립의 적합한 혼합물을 하나 이상의 압출기에서 용융시키는 단계;
- 상기 하나 이상의 층으로 이루어지는 상기 폴리머 필름을 형성하기 위해 용융된 상기 폴리머를 하나 이상의 다이 또는 캘린더를 통과시키는 단계;
- 고체 폴리머 필름을 형성하기 위해 압출된 상기 폴리머 필름을 냉각시키는 단계;
- 상기 압출된 폴리머 필름의 가장자리를 트리밍하는 단계;
- 단지 길이 방향으로만 연신력을 가하여 연신 유닛에서 상기 고체 폴리머 필름을 연신함으로서, 상기 고체 폴리머 필름의 두께를 감소시키는 단계;
- 연신된 상기 폴리머 필름의 가장자리를 선택적으로 트리밍하는 단계;
- 폴리머 코팅된 기재를 생산하기 위해 상기 연신된 폴리머 필름을 기재 위에 적층시키는 단계;
- 상기 폴리머 필름의 배향 및 결정도를 감소시키기 위해 상기 폴리머-코팅된 기재를 후열(post-heating)하는 단계; 및
- 후열한 폴리머-코팅된 기재를 냉각 또는 급랭시키는 단계;
상기 연신 유닛에 의한 연신 비율(draw ratio)은 4 내지 12이고,
상기 적층시키는 단계의 적층 압력이 0.1MPa 내지 10MPa인 것을 특징으로 하는 금속 기재의 생산방법. - 제 1 항에 있어서,
상기 고체 폴리머 필름은, 상기 연신 유닛의 공급 롤(feeding roll)에 공급되기에 전에 릴(reel)에 감기는 것을 특징으로 하는 금속 기재의 생산 방법. - 제 1 항에 있어서,
상기 고체 폴리머 필름은 연신 유닛의 공급 롤에 직접 공급되는 것을 특징으로 하는 금속 기재의 생산 방법. - 제 1 항 내지 제 3 항 중 어느 하나의 항에 있어서,
상기 연신 유닛의 연신 단계 후의 고체 필름의 폭과, 상기 연신 유닛의 연신 단계 전의 고체 필름의 폭과의 비율(WR)이, 0.7 내지 1인 것을 특징으로 하는 금속 기재의 생산 방법. - 제 1 항 내지 제 3 항 중 어느 하나의 항에 있어서,
상기 연신 비율(draw ratio)이 4 내지 6인 것을 특징으로 하는 금속 기재의 생산 방법. - 제 1 항 내지 제 3 항 중 어느 하나의 항에 있어서,
상기 적층 압력이, 0.5MPa 내지 2.5MPa인 것을 특징으로 하는 금속 기재의 생산 방법. - 제 1 항 내지 제 3 항 중 어느 하나의 항에 있어서,
상기 압출된 폴리머 필름 및/또는 연신된 폴리머 필름의 가장자리를 트리밍함으로서 생성된 트리밍된(trimmed-off) 재료를, 트리밍된 재료의 중간 재가공 이후 또는 트리밍 직후에, 하나 이상의 압출기로 다시 공급하는 것을 특징으로 하는 방법.
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PCT/EP2012/057645 WO2012146654A1 (en) | 2011-04-28 | 2012-04-26 | Process for producing a polymer coated metal substrate and a metal strip substrate provided with a polymer coating |
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KR1020137030100A Ceased KR20140027992A (ko) | 2011-04-28 | 2012-04-26 | 폴리머 코팅된 금속 기재의 생산 방법 및 폴리머 코팅이 제공된 금속 스트립 |
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EP3938203A1 (en) | 2019-03-14 | 2022-01-19 | Tata Steel IJmuiden B.V. | Laminated steel product |
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CN103596755B (zh) | 2016-03-02 |
KR20190068632A (ko) | 2019-06-18 |
HK1191905A1 (zh) | 2014-08-08 |
RS54267B1 (en) | 2016-02-29 |
EA201391589A1 (ru) | 2014-02-28 |
BR112013027533B1 (pt) | 2020-12-15 |
US20140072742A1 (en) | 2014-03-13 |
MX2013012360A (es) | 2014-07-30 |
KR20140027992A (ko) | 2014-03-07 |
JP5980907B2 (ja) | 2016-08-31 |
EA025721B1 (ru) | 2017-01-30 |
PT2701905E (pt) | 2015-10-19 |
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