Nonequilibrium dynamics of thin films with large deformations

大变形薄膜的非平衡动力学

• 批准号: 18540403
• 负责人: OKUZONO Tohru
• 金额: $ 2.07万
• 依托单位: The University of Tokyo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2006
• 资助国家: 日本
• 起止时间: 2006 至 2009
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-18540403/
• 关键词: 膜; ソフトマター; 非平衡; ダイナミクス; 乾燥; 蒸発; 膜膜; 乾燥過程; スキン層; ゲル化; 高分子溶液; 非平衡ソフトマター

The condition that a skin phase appears at the free surface of polymer solution in the drying process has been clarified theoretically. A theoretical expression for the evaporation rate including the elastic effect due to gelation has been obtained. A simple model has been proposed which describes drying processes of polymer droplets on a solid substrate. This model enables a theoretical prediction concerning the shape of polymer film deposited after drying. Numerical simulations of multi-droplet systems have been performed. The results show the existence of interference effects among the droplets.

从理论上阐明了干燥过程中聚合物溶液自由表面出现皮相的情况。获得了包括凝胶化引起的弹性效应的蒸发速率的理论表达式。提出了一个简单的模型来描述固体基质上聚合物液滴的干燥过程。该模型可以对干燥后沉积的聚合物薄膜的形状进行理论预测。已经对多液滴系统进行了数值模拟。结果表明，液滴之间存在干扰效应。

项目成果

Diffusion Process during Drying to Cause the Skin Formation in Polymer Solutions

• DOI: 10.1143/jjap.45.8817
• 发表时间: 2006-11
• 期刊: Japanese Journal of Applied Physics
• 影响因子: 1.5
• 作者: Kin'ya Ozawa;T. Okuzono;M. Doi

高分子薄膜の乾燥ダイナミクス

聚合物薄膜的干燥动力学

• 发表时间: 2008
• 作者: Sasaki;S.;Ishihara;Y.;Araki;H.;Noda;H.;Goossens;S.;Namiki;N.;Iwata;T.;Hanada;H.;Matsumoto;K.;SELENE Topography/Gravity Team Group;奥園透
• 通讯作者: 奥園透

Dynamics of drying polymer films : A model study

干燥聚合物薄膜的动力学：模型研究

• 发表时间: 2009
• 作者: 岡上雄介;久家慶子;加藤護;Tohru Okuzono
• 通讯作者: Tohru Okuzono

基板上の高分子溶液乾燥過程のダイナミクス

聚合物溶液在基材上干燥过程的动力学

• 发表时间: 2008
• 作者: 森下善広;森田裕史;土井正男;Tohru Okuzono;Tohru Okuzono;奥薗透
• 通讯作者: 奥薗透

Controlling the Drying and Film Formation Processes of Polymer Solution Droplets with Addition of Small Amount of Surfactants

• DOI: 10.1021/jp9077757
• 发表时间: 2009-11-26
• 期刊: JOURNAL OF PHYSICAL CHEMISTRY B
• 影响因子: 3.3
• 作者: Kajiya, Tadashi;Kobayashi, Wataru;Doi, Masao
• 通讯作者: Doi, Masao