JP6629373B2 - 撥水性物品の製造方法およびレーザ加工装置 - Google Patents
撥水性物品の製造方法およびレーザ加工装置 Download PDFInfo
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- JP6629373B2 JP6629373B2 JP2018049311A JP2018049311A JP6629373B2 JP 6629373 B2 JP6629373 B2 JP 6629373B2 JP 2018049311 A JP2018049311 A JP 2018049311A JP 2018049311 A JP2018049311 A JP 2018049311A JP 6629373 B2 JP6629373 B2 JP 6629373B2
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Description
液滴接触状態を考察するため、着液量10μリットルにおける接触角を測定した。キャビティ構造25を有するもの(キャビティ付き柱状構造)は160°であり、キャビティ構造25を有さないもの(キャビティなし柱状構造)は148°であった。液滴Dの様子を図18(a)(b)に示す。図18(a)はキャビティ構造25を有する液滴の画像図であり、図18(b)はキャビティ構造25を有さない液滴の画像図
である。C−B状態における接触角θCBは前記数1から計算できる。
21 柱状構造部
22 外周壁部
23 凹部
24 撥水面構造
25 キャビティ構造
26 レーザ加工装置
27 制御手段
31 凹部
32 凸部
33 周期構造
M 撥水性物品
Claims (6)
- 複数の溝部で仕切られた柱状構造部を有し、前記溝部に微小の凹部と凸部とが交互に所定ピッチで配設されたグレーティング状の周期構造が形成され、前記柱状構造部の先端部は、外周壁部に囲まれた凹部を有するキャビティ構造になっている撥水面構造を有する撥水性物品の製造方法であって、
前記撥水面構造は、レーザ光を長軸長さが短軸長さの5倍以上となるように集光し、長軸方向となす角が30°以内の方向に走査し,前記溝部の形成と同時に前記グレーティング状の周期構造と前記キャビティ構造が形成されてなることを特徴とする撥水性物品の製造方法。 - 前記溝部の溝幅が、100μm以下で、かつ、前記グレーティング状の周期構造のピッ
チの2倍以上であることを特徴とする請求項1に記載の撥水性物品の製造方法。 - 前記周期構造の表面に、周期構造の凸部及び凹部よりも微小な100nm以下の粗さが
内包されたことを特徴とする請求項1又は請求項2に記載の撥水性物品の製造方法。 - 前記溝部および前記柱状構造部に、平滑面における水の接触角が100°以上、かつ、
厚さが20nm以下となる撥水剤をコ−ティングしたことを特徴とする請求項1〜請求項
3のいずれか1項に記載の撥水性物品の製造方法。 - 複数の溝部で仕切られた柱状構造部を有し、前記溝部に微小の凹部と凸部とが交互に所定ピッチで配設されたグレーティング状の周期構造が形成され、前記柱状構造部の先端部は、外周壁部に囲まれた凹部を有するキャビティ構造になっている撥水面構造を有する撥水性物品における撥水面構造を加工するレーザ加工装置であって、
レーザ光を長軸長さが短軸長さの5倍以上となるように集光させて、長軸方向となす角が30°以内の方向に走査させる制御手段を備え、このレーザ光の走査により、前記溝部の形成と同時に前記グレーティング状の周期構造と前記キャビティ構造を形成することを特徴とするレーザ加工装置。 - 前記溝部の形成時に形成される加工噴出物が柱状構造部の上部に堆積して前記キャビティ構造を形成することを特徴とする請求項5に記載のレーザ加工装置。
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JP2010207889A (ja) * | 2009-03-11 | 2010-09-24 | Canon Machinery Inc | 周期構造の作製方法及び作製装置 |
CN108371567B (zh) * | 2013-01-11 | 2021-08-17 | Bvw控股公司 | 可植入的超疏水表面 |
JP2016010811A (ja) * | 2014-06-30 | 2016-01-21 | ミネベア株式会社 | 金属材料の表面処理方法及びこの方法を用いたフォースセンサ |
JP6781092B2 (ja) * | 2017-03-29 | 2020-11-04 | 日本ピラー工業株式会社 | コーティング基材 |
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KR102455619B1 (ko) * | 2021-01-28 | 2022-10-18 | 경북대학교 산학협력단 | 소수성 패턴 형성 방법 |
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