Drying enhancement in phase separating fluids and its application
| Project/Area Number |
23560912
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (C)
|
| Allocation Type | Multi-year Fund |
|---|
| Section | 一般 |
|---|
| Research Field |
Properties in chemical engineering process/Transfer operation/Unit operation
|
|---|
| Research Institution | Kyushu Institute of Technology |
|---|
Principal Investigator |
YAMAMURA Masato 九州工業大学, 工学(系)研究科(研究院), 教授 (90284588)
|
|---|
| Project Period (FY) |
2011 – 2013
|
| Project Status |
Completed (Fiscal Year 2013)
|
| Budget Amount *help |
¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2013: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2012: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2011: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
|
|---|
| Keywords | 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 |
|---|
| Research Abstract |
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.
|
Report
(4 results)
Research Products
(39 results)
