Drying enhancement in phase separating fluids and its application

相分离流体的强化干燥及其应用

• 批准号: 23560912
• 负责人: YAMAMURA Masato
• 金额: $ 3.33万
• 依托单位: Kyushu Institute of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011 至 2013
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23560912/
• 关键词: 塗布膜; コーティング; 相分離; 乾燥促進; 高分子溶液; 蛍光イメージング; 非平衡熱力学

In thin film drying process of immiscible polymer blend in a common solvent, spontaneous polymer phase separation promotes the enhancement or suppression of solvent drying in a particular range of solvent concentrations. Simultaneous mass/fluorescent intensity measurements in the course of drying revealed that the drying enhancement takes place in the case when growth rates of phase-separated domains are lower than the critical value of 20 nm/s. The fluorescent microscopy also showed the local solvent enrichment at the interface of polymer domains in drying enhancement mode. These fact imply that the self-assembly of solvent molecules at phase-separating domain interfaces results in formation of solvent diffusion path along the interface, which assists the solvent drying across the liquid film.

在不相容聚合物共混物的薄膜干燥过程中，在特定的溶剂浓度范围内，聚合物自发相分离促进了溶剂干燥的增强或抑制。同时质量/荧光强度测量在干燥过程中显示，干燥增强发生在相分离域的生长速率低于20 nm/s的临界值的情况下。荧光显微镜也显示了局部溶剂富集在干燥增强模式下的聚合物域的界面处。这些事实意味着溶剂分子在相分离域界面处的自组装导致溶剂沿界面沿着扩散路径的形成，这有助于溶剂穿过液膜干燥。

项目成果

Drying-Induced Hierarchical Dimple Patterns on Partially Miscible Polymeric Films Under Ordered Convections

• DOI: 10.1080/07373937.2013.783591
• 发表时间: 2013-08
• 期刊: Drying Technology
• 影响因子: 3.3
• 作者: M. Yamamura;Shintaro Eikai;Y. Mawatari;H. Kage

Stress Oscillations in Co-Solvent Nanoparticle–Polymer Suspensions Subjected to Constant Shear Rate

共溶剂纳米粒子-聚合物悬浮液中恒定剪切速率下的应力振荡

• 发表时间: 2013
• 作者: M. Yamamura;Hiroaki Koga;Y. Mawatari;H. Kage
• 通讯作者: H. Kage

Drying paths of phase-separating mixed solvent films

相分离混合溶剂薄膜的干燥路径

• 发表时间: 2013
• 作者: Mikiko Hatayama;Masato Yamamura;Yoshihide Mawatari;Hiroyuki Kage
• 通讯作者: Hiroyuki Kage

Effects of film thickness and composition on retarded drying in phase-separating coatings

膜厚和成分对相分离涂料延迟干燥的影响

• 发表时间: 2011
• 作者: Shosuke Harada;Masato Yamamura;Yoshihide Mawatari;and Hiroyuki Kage
• 通讯作者: and Hiroyuki Kage

黒鉛/色素分散高分子溶液フィルムの乾燥過程におけるフォトルミネッセンス測定

石墨/染料分散聚合物溶液薄膜干燥过程中的光致发光测量

• 发表时间: 2013
• 作者: S. Lim;K. Hyun Ahn;M. Yamamura;天野雄太,山村方人,馬渡佳秀,鹿毛浩之
• 通讯作者: 天野雄太,山村方人,馬渡佳秀,鹿毛浩之