Role Of Vertical Component Of Surface Tension Of The Droplet On The Elastic Deformation Of Pdms Membrane
文献类型：期刊论文
| 作者 | Yu YS(余迎松) ; Yang ZY(杨振宇); Zhao YP(赵亚溥)
|
| 刊名 | Journal of Adhesion Science and Technology
 |
| 出版日期 | 2008 |
| 页码 | 687-698 |
| 通讯作者邮箱 | yzhao@imech.ac.cn |
| 关键词 | Capillarity Wetting Young'S Equation Vertical Component Numerical Simulation Contact Angles Solid-Surfaces Thin Dynamics Liquids Films |
| ISSN号 | 0169-4243 |
| 通讯作者 | Zhao, YP (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China. |
| 中文摘要 | Poly(dimethylsiloxane) (PDMS) has been widely used in lab-on-a-chip and micro- total analysis systems (mu-TAS), thus wetting and electrowetting behaviors of PDMS are of great importance in these devices. PDMS is a kind of soft polymer material, so the elastic deformation of PDMS membrane by a droplet cannot be neglected due to the vertical component of the interfacial tension between the liquid and vapor, and this vertical component of liquid-vapor surface tension is also balanced by the stress distribution within the PDMS membrane. Such elastic deformation and stress distribution not only affect the exact measurement of contact angle, but also have influence on the micro-fluidic behavior of the devices. Using ANSYS code, we simulated numerically the elastic deformation and stress distribution of PDMS membrane on a rigid substrate due to the liquid-vapor surface tension. It is found that the vertical elastic deformation of the PDMS membrane is on the order of several tens of nanometers due to the application of a droplet with a diameter of 2.31 mm, which is no longer negligible for lab-on-a-chip and mu-TAS. The vertical elastic deformation increases with the thickness of the PDMS membrane, and there exists a saturated membrane thickness, regarded as a semi-infinite membrane thickness, and the vertical elastic deformation reaches a limiting value when the membrane thickness is equal to or thicker than such saturated thickness. (C) Koninklijke Brill NV, Leiden, 2008. |
| 类目[WOS] | Engineering, Chemical ; Materials Science, Multidisciplinary ; Mechanics |
| 研究领域[WOS] | Engineering ; Materials Science ; Mechanics |
| 关键词[WOS] | CONTACT ANGLES ; SOLID-SURFACES ; THIN ; DYNAMICS ; LIQUIDS ; FILMS |
| 收录类别 | SCI ; EI |
| 语种 | 英语 |
| WOS记录号 | WOS:000257949700002 |
| 公开日期 | 2009-08-03 ; 2009-09-14 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/25952]  |
| 专题 | 力学研究所_力学所知识产出(1956-2008) |
| 推荐引用方式 GB/T 7714 | Yu YS,Yang ZY,Zhao YP. Role Of Vertical Component Of Surface Tension Of The Droplet On The Elastic Deformation Of Pdms Membrane[J]. Journal of Adhesion Science and Technology,2008:687-698. |
| APA | 余迎松,杨振宇,&赵亚溥.(2008).Role Of Vertical Component Of Surface Tension Of The Droplet On The Elastic Deformation Of Pdms Membrane.Journal of Adhesion Science and Technology,687-698. |
| MLA | 余迎松,et al."Role Of Vertical Component Of Surface Tension Of The Droplet On The Elastic Deformation Of Pdms Membrane".Journal of Adhesion Science and Technology (2008):687-698. |
入库方式： OAI收割
来源：力学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。