Control of dynamic behavior of water by understanding relationship between structure of adsorbed water and wettability behavior of water

• Project/Area Number: 16H02400
• Research Category: Grant-in-Aid for Scientific Research (A)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Composite materials/Surface and interface engineering
• Research Institution: Shibaura Institute of Technology
• Principal Investigator: Takahiro Ishizaki 芝浦工業大学, 工学部, 教授 (50397486)
• Project Period (FY): 2016-04-01 – 2020-03-31
• Project Status: Completed (Fiscal Year 2019)
• Budget Amount: ¥45,240,000 (Direct Cost: ¥34,800,000、Indirect Cost: ¥10,440,000); Fiscal Year 2019: ¥6,890,000 (Direct Cost: ¥5,300,000、Indirect Cost: ¥1,590,000); Fiscal Year 2018: ¥6,890,000 (Direct Cost: ¥5,300,000、Indirect Cost: ¥1,590,000); Fiscal Year 2017: ¥9,490,000 (Direct Cost: ¥7,300,000、Indirect Cost: ¥2,190,000); Fiscal Year 2016: ¥21,970,000 (Direct Cost: ¥16,900,000、Indirect Cost: ¥5,070,000)
• Keywords: 表面・界面物性 / 表面濡れ性 / 接触角ヒステリシス / 有機単分子膜 / 共吸着 / 吸着水 / 吸着構造 / 水の動的挙動 / 濡れ性 / 水の動的制御

Outline of Final Research Achievements

In this study, the wettability and adhesive force of adsorbed water for hydrophobic surfaces and the mixed surfaces composed of hydrophobicity and hydrophilicity were investigated. It was revealed that low hysteresis surfaces were successfully formed by covering two types of organic silane molecules having different alkyl chain length. Contact angle measurements using some types of liquids having different surface tension revealed that the surface area of molecular defects and pore sizes were less than 0.31 to 0.36 nm2.
Force curve measurements for hydrophobic surfaces and the mixed surfaces composed of hydrophobicity and hydrophilicity confirmed that the adhesive forces of adsorbed water corresponded to the magnitude relation between static water contact angle values.

Academic Significance and Societal Importance of the Research Achievements

本課題を通し，従来の熱力学的・速度論的観点から得られる表面の物理化学的特性および水の動的挙動と吸着水の構造との関係を体系化させることができたと考えられる。また、接触角ヒステリシスの低い表面を形成させるためには、分子密度の制御が重要であることを明らかにした。これらの点に学術的意義がある。水の動的挙動（濡れ性）を制御可能な表面処理技術は，材料表面からの液滴の除去効率を大幅に改善できるため，バイオチップ，電子，自動車，半導体産業等に対し，省エネの観点から幅広い産業への波及効果が期待できる。

Research Products

• [Journal Article] マグネシウム合金の防食機能向上のための超撥水処理技術 (2018)
  • Author(s): 石崎貴裕，嶋田雄太，綱川美佳，久田柊太郎
  • Journal Title: ファインケミカル Volume: 47 Pages: 26-33
  • Peer Reviewed
• [Journal Article] Corrosion behavior of superhydrophobic film fabricated on AZ31B magnesium alloy by one-step immersion process in NaCl aqueous solution (2018)
  • Author(s): 嶋田 雄太、綱川 美佳、横溝 哲也、Lee Hoonseung、石崎 貴裕
  • Journal Title: Journal of Japan Institute of Light Metals Volume: 68 Issue: 2 Pages: 57-64
  • DOI: 10.2464/jilm.68.57
  • NAID: 130006588638
  • ISSN: 0451-5994, 1880-8018
  • Peer Reviewed
• [Journal Article] Ultrafast Fabrication of Superhydrophobic Surfaces on Engineering Light Metals by Single-Step Immersion Process (2017)
  • Author(s): Takahiro Ishizaki, Sou Kumagai, Mika Tsunakawa, Takuya Furukawa, Kae Nakamura
  • Journal Title: Materials Letters Volume: 193 Pages: 42-45
  • DOI: 10.1016/j.matlet.2017.01.050
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Hydrolysis of cellulose to glucose over carbon catalysts sulfonated via a plasma process in dilute acids (2017)
  • Author(s): Li Oi Lun、Ikura Ryuhei、Ishizaki Takahiro
  • Journal Title: Green Chemistry Volume: 19 Issue: 20 Pages: 4774-4777
  • DOI: 10.1039/c7gc02143g
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Rapid Fabrication of a Crystalline Myristic Acid-Based Superhydrophobic Film with Corrosion Resistance on Magnesium Alloys by the Facile One-Step Immersion Process (2017)
  • Author(s): Ishizaki Takahiro、Shimada Yuta、Tsunakawa Mika、Lee Hoonseung、Yokomizo Tetsuya、Hisada Shutaro、Nakamura Kae
  • Journal Title: ACS Omega Volume: 2 Issue: 11 Pages: 7904-7915
  • DOI: 10.1021/acsomega.7b01256
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] 撥水および超撥水コーティング技術とその応用例 (2017)
  • Author(s): 石崎貴裕，久田柊太郎，高田葵，横溝哲也
  • Journal Title: 塗装工学 Volume: 52 Pages: 318-323
  • NAID: 40021371636
  • Peer Reviewed
• [Presentation] Preparation of Surface Showing Low Contact Angle Hysteresis using Organic Silane Molecules with Different Alkyl-Chain Length (2020)
  • Author(s): Takahiro ISHIZAKI. Shunsuke KISHINO, Miho KANEKO
  • Organizer: International Conference on Fundamentals of Materials Science and Polymeric Materials (ICFMSPM 2020)
  • Int'l Joint Research
• [Presentation] Wettable behavior of hydrophobic surface prepared by thermal CVD using organic silane molecules with different alkyl chain length (2019)
  • Author(s): T. Ishizaki, Kishino, M. Kaneko
  • Organizer: 2019 INTERNATIONAL SYMPOSIUM FOR ADVANCED MATERIALS RESEARCH (ISAMR 2019)
  • Int'l Joint Research
• [Presentation] ポーラス構造を有する透明薄膜の作製 (2019)
  • Author(s): 金子美穂，岸野峻佑，石崎貴裕
  • Organizer: 表面技術協会第140回講演大会
• [Presentation] 疎水性・親水性混合表面の濡れ性挙動 (2019)
  • Author(s): 岸野峻佑，金子美穂，石崎貴裕
  • Organizer: 表面技術協会第140回講演大会
• [Presentation] Effects of introduction of hydrophilic region into hydrophobic surface on wettablity behavior (2019)
  • Author(s): S. Kishino, M. Kaneko, T. Ishizaki
  • Organizer: 第29回日本MRS年次大会（国際セッション）
  • Int'l Joint Research
• [Presentation] Wettability behavior on hydrophobic film covered with organosilane molecules having siloxane bond and alkyl chain (2019)
  • Author(s): M. Kaneko, S. Kishino, T. Ishizaki
  • Organizer: 第29回日本MRS年次大会（国際セッション）
  • Int'l Joint Research
• [Presentation] Dynamic behavior of water droplet on hydrophobic surfaces prepared by thermal CVD using two organic silane molecules (2019)
  • Author(s): Takahiro Ishizaki, Shunsuke Kishino, Miho Kaneko
  • Organizer: The 6th Int’l Conference on Surface and Interface of Materials (SIM-BT 2019)
  • Int'l Joint Research
• [Presentation] シロキサン結合を有する有機シラン分子膜の濡れ性挙動 (2019)
  • Author(s): 金子美穂，岸野峻佑，石崎貴裕
  • Organizer: 表面技術協会第139回講演大会
• [Presentation] Dynamic behavior of water droplet on hydrophobic surfaces covered with two organic silane molecules with alkyl chain (2018)
  • Author(s): T. Ishizaki, S.Hisada, A. Takada
  • Organizer: Nanotech France 2018 International Conference and Exhibition
  • Int'l Joint Research
• [Presentation] アルキル鎖長の異なる有機シラン分子を被覆したSi表面の特性評価 (2018)
  • Author(s): 久田柊太朗，高田葵，岸野峻佑，石崎貴裕
  • Organizer: 表面技術協会第138回講演大会
• [Presentation] 疎水性表面への微小親水部位導入による濡れ性挙動への影響 (2018)
  • Author(s): 岸野峻佑，久田柊太朗，石崎貴裕
  • Organizer: 表面技術協会第138回講演大会
• [Presentation] 疎水性と親水性官能基を有する有機シラン分子を共吸着させた表面の作製と濡れ性挙動 (2018)
  • Author(s): 岸野峻佑，石崎貴裕
  • Organizer: 表面技術協会第137回講演大会
• [Presentation] アルキル鎖長の異なる有機シラン分子を共吸着させたSi表面の濡れ性挙動 (2018)
  • Author(s): 久田柊太朗，高田葵，石﨑貴裕
  • Organizer: 表面技術協会第137回講演大会
• [Presentation] 分子構造の異なる2種類の有機シラン分子を2段階で共吸着させた表面の濡れ性挙動 (2018)
  • Author(s): 高田葵，石﨑貴裕
  • Organizer: 表面技術協会第137回講演大会
• [Presentation] 熱CVD 法による2 種類の有機シラン分子を用いた低ヒステリシス表面形成技術の開発 (2017)
  • Author(s): 高田葵，石﨑貴裕
  • Organizer: 表面技術協会第135回講演大会
  • Place of Presentation: 東洋大学川越キャンパス
  • Year and Date: 2017-03-08
• [Presentation] 2種類の直鎖状有機シラン分子を用いて被覆した表面の濡れ性挙動 (2017)
  • Author(s): 久田柊太朗，石﨑貴裕
  • Organizer: 表面技術協会第135回講演大会
  • Place of Presentation: 東洋大学川越キャンパス
  • Year and Date: 2017-03-08
• [Presentation] Wettability Behavior of Organic Silane Molecules with Different Alkyl-Chain Length coated Si surface (2017)
  • Author(s): T. Ishizaki, S. Hisada, O. L. Li
  • Organizer: 19th International Conference on Advanced Materials (ICAM2017)
  • Int'l Joint Research
• [Presentation] Water droplet behavior on surfaces covered with two types of organic silane molecules with different alkyl-chain length (2017)
  • Author(s): T. Ishizaki, S.Hisada, A. Takada
  • Organizer: Nanotech France 2017 International Conference and Exhibition
  • Int'l Joint Research
• [Presentation] Behavior of Wettability on hydrophobic surface prepared by thermal CVD using organic silane molecules with different alkyl chain length (2017)
  • Author(s): T. Ishizaki, S. Hisada, A. Takada
  • Organizer: International Conference on Sustainable Materials Science and Technology
  • Int'l Joint Research
• [Presentation] 直鎖状と枝状の分子構造を有する有機シラン分子を被覆させた表面の濡れ性挙動 (2017)
  • Author(s): 高田葵，石崎貴裕
  • Organizer: 表面技術協会第136回講演大会
• [Presentation] 2種類の有機シラン分子を被覆した表面の濡れ性挙動に及ぼすアルキル鎖長の影響 (2017)
  • Author(s): 久田柊太朗，横溝哲也，高田葵，石﨑貴裕
  • Organizer: 表面技術協会第136回講演大会
• [Presentation] 2種類の直鎖状有機シラン分子を被覆したSi表面の濡れ性挙動 (2017)
  • Author(s): 久田柊太朗，石﨑貴裕
  • Organizer: 日本材料科学会第5回 メゾスコピック研究会講演会
• [Presentation] Dyanmic behavior of water droplet on water repellent surface with low contact angle hysteresis (2016)
  • Author(s): T. Ishizaki, T. Furukawa, K. Sasagawa
  • Organizer: Applied Nanotechnology and Nanoscience International Conference （ANNIC)2016
  • Place of Presentation: Pompeu Fabra University, Barcelona, Spain
  • Year and Date: 2016-11-09
  • Int'l Joint Research
• [Presentation] 分子構造の異なる2種類の有機シラン分子を被覆させたSi表面の濡れ性評価 (2016)
  • Author(s): 古川卓弥，石崎貴裕
  • Organizer: 表面技術協会第134回講演大会
  • Place of Presentation: 東北大学
  • Year and Date: 2016-09-01
• [Presentation] マグネシウム合金上への超はっ水表面の作製とその物理化学的特性評価 (2016)
  • Author(s): 熊谷颯，石崎貴裕
  • Organizer: 表面技術協会第134回講演大会
  • Place of Presentation: 東北大学
  • Year and Date: 2016-09-01
• [Presentation] アルキル鎖長の異なる2種類の有機シラン分子を被覆させたSi表面の水の動的挙動 (2016)
  • Author(s): 笹川圭祐，石崎貴裕
  • Organizer: 表面技術協会第134回講演大会
  • Place of Presentation: 東北大学
  • Year and Date: 2016-09-01
• [Presentation] Preparation of water repellent surface using organic silane molecules with different molecular structure (2016)
  • Author(s): T. Ishizaki, T. Furukawa, K. Sasagawa
  • Organizer: Global Conference on Applied Physics and Mathematics
  • Place of Presentation: Università degli Studi di Roma "Tor Vergata"
  • Year and Date: 2016-07-25
  • Int'l Joint Research
• [Presentation] Preparation of hydrophobic surface showing low contact angle hysteresis using organic silane molecules with different molecular configuration (2016)
  • Author(s): T. Ishizaki, T. Furukawa, K. Sasagawa
  • Organizer: Energy Materials Nanotechnology (EMN) Croatia Meeting 2016
  • Place of Presentation: Dubrovnik, Croatia, Hotel Neptun
  • Year and Date: 2016-05-04
  • Int'l Joint Research
• [Presentation] 分子構造の異なる2種類の有機シランを被覆させたSi表面の濡れ性評価 (2016)
  • Author(s): 古川卓弥，石﨑貴裕
  • Organizer: 日本材料科学会第4回 メゾスコピック研究会講演会
  • Place of Presentation: 東京理科大学森戸記念館
• [Book] 撥水・撥油の技術と市場（第2編，第8章マグネシウム合金の防食機能向上のための超撥水処理技術） (2018)
  • Author(s): 石崎貴裕，嶋田雄太，岸野峻佑，久田柊太郎
  • Total Pages: 10
  • Publisher: シーエムシー出版
• [Book] 超親水・超撥水化のメカニズムと品質向上 ～測定評価ノウハウ・産業活用事例・現場の課題Q&A～，第4章 第2節 第4項 表面改質によるガラスへの超撥水性付与技術開発 (2017)
  • Author(s): 石崎貴裕
  • Total Pages: 288
  • Publisher: 情報機構
• [Remarks] 自己組織化単分子膜による"水が転がる"表面の作製
  • URL: http://www.sic.shibaura-it.ac.jp/~ishizaki/
• [Patent(Industrial Property Rights)] 被膜形成用組成物、被膜を有する物品および被膜を有する物品の製造方法 (2018)
  • Inventor(s): 鈴木慶一，石崎貴裕
  • Industrial Property Rights Holder: 鈴木慶一，石崎貴裕
  • Industrial Property Rights Type: 特許
  • Filing Date: 2018
  • Overseas
• [Patent(Industrial Property Rights)] 被膜形成用組成物、被膜を有する物品および被膜を有する物品の製造方法 (2017)
  • Inventor(s): 鈴木慶一，石崎貴裕
  • Industrial Property Rights Holder: 鈴木慶一，石崎貴裕
  • Industrial Property Rights Type: 特許
  • Industrial Property Number: 2017-004377
  • Filing Date: 2017-03-08