KR102326257B1 - 친수성 및 도전성이 우수한 강판 - Google Patents
친수성 및 도전성이 우수한 강판 Download PDFInfo
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- KR102326257B1 KR102326257B1 KR1020210069653A KR20210069653A KR102326257B1 KR 102326257 B1 KR102326257 B1 KR 102326257B1 KR 1020210069653 A KR1020210069653 A KR 1020210069653A KR 20210069653 A KR20210069653 A KR 20210069653A KR 102326257 B1 KR102326257 B1 KR 102326257B1
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Abstract
Description
도 2a, 도 2b는 본 발명의 일 실시예에 따른 강판의 표면 SEM 사진이다. (배율 50,000)
| 미세돌기 면적분율 (%) | 접촉저항 (mΩ·cm2) |
접촉각 (°) |
||||
| 각형 미세돌기 |
막대형 미세돌기 |
침상형 미세돌기 |
합계 | |||
| 발명예1 | 15 | 5 | 1 | 21 | 4.9 | 75 |
| 발명예2 | 21 | 2 | 2 | 25 | 4.8 | 70 |
| 발명예3 | 3 | 20 | 1 | 24 | 4.7 | 65 |
| 발명예4 | 0 | 1 | 22 | 23 | 4.6 | 64 |
| 발명예5 | 29 | 4 | 1 | 34 | 3.9 | 55 |
| 발명예6 | 2 | 32 | 12 | 45 | 3.7 | 53 |
| 발명예7 | 22 | 20 | 13 | 55 | 3.4 | 50 |
| 발명예8 | 8 | 24 | 28 | 60 | 3.2 | 49 |
| 발명예9 | 22 | 25 | 24 | 71 | 3.3 | 47 |
| 발명예10 | 23 | 26 | 29 | 78 | 2.9 | 46 |
| 비교예1 | 8 | 5 | 4 | 17 | 6.2 | 87 |
| 비교예2 | 5 | 0 | 0 | 5 | 15.7 | 92 |
| 비교예3 | 1 | 2 | 1 | 4 | 21.1 | 96 |
| 비교예4 | 4 | 8 | 0 | 12 | 18.3 | 88 |
Claims (8)
- 삭제
- 강판 상에 피치 간 간격이 1 내지 500nm인 미세돌기들이 면적분율로 20% 이상 포함되는 절리 구조를 포함하고,
상기 미세돌기들 중 각형 미세돌기가 면적분율로 20% 이상 포함되며,
상기 각형 미세돌기는 면적이 같거나 다른 다각형으로 이루어진 서로 다른 면 3개가 하나의 꼭지점을 공유하며, 각 면에서의 법선벡터 간의 각도가 모두 0°초과 180° 미만인 형태의 미세돌기이며,
상기 하나의 꼭지점을 공유하는 서로 다른 면 3개 중 가장 넓은 면의 면적이 40,000nm2 미만이며, 3개의 면의 총 면적 합이 60,000nm2 미만인 친수성 및 도전성이 우수한 강판. - 강판 상에 피치 간 간격이 1 내지 500nm인 미세돌기들이 면적분율로 20% 이상 포함되는 절리 구조를 포함하고,
상기 미세돌기들 중 막대형 미세돌기가 면적분율로 20% 이상 포함되며,
상기 막대형 미세돌기는 원형 또는 다각형의 밑면 및 원형 또는 다각형의 둘레에서 수직 연장된 옆면으로 구성된 막대 형태를 가지며, 상기 밑면의 법선벡터와 강판 표면의 법선벡터 간의 각도가 0 내지 90°인 미세돌기이며,
상기 옆면의 높이가 50nm 이상인 친수성 및 도전성이 우수한 강판. - 제3항에 있어서,
상기 밑면의 법선벡터와 강판 표면의 법선벡터 간의 각도가 0 내지 30°인 친수성 및 도전성이 우수한 강판. - 강판 상에 피치 간 간격이 1 내지 500nm인 미세돌기들이 면적분율로 20% 이상 포함되는 절리 구조를 포함하고,
상기 미세돌기들 중 침상형 미세돌기가 면적분율로 20% 이상 포함되며,
침상형 미세돌기는 하나의 꼭지점에서 강판 측으로 연속되어 방사 연장된 곡선들 또는 직선들로 이루어진 입체이며, 방사 연장되는 각 곡선 또는 직선과 강판 표면의 법선벡터 간의 각도는 90°초과 180°이하인 미세돌기이며,
상기 꼭지점으로부터 강판 표면까지의 연직거리가 50nm 이상인 친수성 및 도전성이 우수한 강판. - 제5항에 있어서,
상기 방사 연장되는 각 곡선 또는 직선과 강판 표면의 법선벡터 간의 각도는 150 내지 180°인 친수성 및 도전성이 우수한 강판. - 제2, 3, 및 5항 중 어느 한 항에 있어서,
결정립의 크기가 1 내지 35㎛인 친수성 및 도전성이 우수한 강판. - 제2, 3, 및 5항 중 어느 한 항에 있어서,
결정립 간 높이차가 0.1 내지 1000nm인 친수성 및 도전성이 우수한 강판.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020210069653A KR102326257B1 (ko) | 2021-05-31 | 2021-05-31 | 친수성 및 도전성이 우수한 강판 |
| EP22816390.3A EP4302889A4 (en) | 2021-05-31 | 2022-05-26 | STEEL SHEET WITH EXCELLENT HYDROPHILICITY AND CONDUCTIVITY |
| US18/285,568 US12542284B2 (en) | 2021-05-31 | 2022-05-26 | Steel sheet having excellent hydrophilicity and conductivity |
| PCT/KR2022/007507 WO2022255731A1 (ko) | 2021-05-31 | 2022-05-26 | 친수성 및 도전성이 우수한 강판 |
| CN202280039149.3A CN117460588A (zh) | 2021-05-31 | 2022-05-26 | 具有优异的亲水性和导电性的钢板 |
| JP2023569767A JP2024518496A (ja) | 2021-05-31 | 2022-05-26 | 親水性及び導電性に優れた鋼板 |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020210069653A KR102326257B1 (ko) | 2021-05-31 | 2021-05-31 | 친수성 및 도전성이 우수한 강판 |
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| KR102326257B1 true KR102326257B1 (ko) | 2021-11-16 |
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| Country | Link |
|---|---|
| US (1) | US12542284B2 (ko) |
| EP (1) | EP4302889A4 (ko) |
| JP (1) | JP2024518496A (ko) |
| KR (1) | KR102326257B1 (ko) |
| CN (1) | CN117460588A (ko) |
| WO (1) | WO2022255731A1 (ko) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022255731A1 (ko) * | 2021-05-31 | 2022-12-08 | 포스코홀딩스 주식회사 | 친수성 및 도전성이 우수한 강판 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102326258B1 (ko) * | 2021-05-31 | 2021-11-16 | 주식회사 포스코 | 친수성 및 도전성이 우수한 강판 |
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- 2022-05-26 JP JP2023569767A patent/JP2024518496A/ja active Pending
- 2022-05-26 CN CN202280039149.3A patent/CN117460588A/zh active Pending
- 2022-05-26 EP EP22816390.3A patent/EP4302889A4/en active Pending
- 2022-05-26 US US18/285,568 patent/US12542284B2/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022255731A1 (ko) * | 2021-05-31 | 2022-12-08 | 포스코홀딩스 주식회사 | 친수성 및 도전성이 우수한 강판 |
| US12542284B2 (en) | 2021-05-31 | 2026-02-03 | Posco Co., Ltd | Steel sheet having excellent hydrophilicity and conductivity |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2022255731A1 (ko) | 2022-12-08 |
| CN117460588A (zh) | 2024-01-26 |
| US20240204213A1 (en) | 2024-06-20 |
| JP2024518496A (ja) | 2024-05-01 |
| EP4302889A4 (en) | 2025-01-01 |
| US12542284B2 (en) | 2026-02-03 |
| EP4302889A1 (en) | 2024-01-10 |
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