Investigation of the effects of surface water film and hierarchical solid texture on the hydrophilicity of ceramics surface

表面水膜和分级实体织构对陶瓷表面亲水性影响的研究

• 批准号: 21360317
• 负责人: NAKAJIMA Akira
• 金额: $ 11.48万
• 依托单位: Tokyo Institute of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2009
• 资助国家: 日本
• 起止时间: 2009 至 2011
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-21360317/
• 关键词: 表面; 酸化チタン; 親水性; 光触媒; ヘテロポリ酸; 暗所維持性; ルチル; 摩擦力; AFM; 水膜; 接触角; 線張力

Effects of surface water film and hierarchical solid texture on the highly hydrophilic surface was investigated using various TiO2 samples and probe microscopy. When UV was irradiated onto the surface of polycrystalline rutile ceramics, the friction force first increased and then decreased. Once the water contact angle of the rutile surface reached the lower limit, the friction force increased gradually. Increased friction force was attributable to decomposition of the surface organic contaminant and subsequent friction force decrease and gradual increase are attributed to water adsorption. From the force curve measurement, the thickness of water layer was estimated as 2. 3 nm separation. Moreover, an excellent photoinduced hydrophilicizing rate and the sustainability of hydrophilicity were obtained from the brookite-heteropolyacid hybrid films. The mechanism of these properties was discussed from the viewpoint of hydrophilic points in the solid surface.

使用各种TiO2样品和探针显微镜研究了地表水膜和分层固体纹理对高度亲水性表面的影响。当将紫外线照射到多晶金红石陶瓷的表面上时，摩擦力首先增加然后减少。一旦金红石表面的水接触角到达下限，摩擦力就会逐渐增加。摩擦力增加归因于表面有机污染物的分解，随后的摩擦力降低，逐渐增加归因于水的吸附。从力曲线测量值，水层的厚度估计为2。3nm。此外，从Brookite-Heter-Heterbopolyacid杂交膜获得了出色的光诱导的亲水率和亲水性的可持续性。从固体表面的亲水点的角度讨论了这些特性的机制。

项目成果

超濡れ性の設計

超强润湿设计

• 发表时间: 2009
• 期刊: 無機マテリアル学会誌
• 作者: 新田紀子;長谷川季也;保田英洋;林禎彦;義家敏正;中島章
• 通讯作者: 中島章

Photoinduced Surface Friction Force Change of Polycrystalline Rutile Ceramics under UV irradiation

紫外光照射下多晶金红石陶瓷光致表面摩擦力变化

• 发表时间: 2010
• 作者: K. Okudaira;N. Arimitsu;T. Isobe;A. Nakajima
• 通讯作者: A. Nakajima

第6章第5節''撥水材料・親水材料''

第 6 章第 5 节“防水材料/亲水材料”

• 发表时间: 2011
• 作者: M.Yashima;R.Ali;中島章(分担執筆)
• 通讯作者: 中島章(分担執筆)

Droplet Size Dependence of Line Tension for an Ionic Liquid on a Smooth Silane Coating

光滑硅烷涂层上离子液体线张力对液滴尺寸的依赖性

• 发表时间: 2009
• 期刊: Chem. Lett.
• 作者: T. Furuta;A. Nakajima;M. Sakai;T. Isobe;Y. Kameshima;K. Okada
• 通讯作者: K. Okada

アナターゼ多結晶薄膜の光誘起表面摩擦力変化

光致锐钛矿多晶薄膜表面摩擦力的变化

• 发表时间: 2009
• 期刊: 光触媒
• 作者: 中島章;有光直樹
• 通讯作者: 有光直樹