Surface cleaning technology using non-newtonian fluids
Abstract/Contents
- Abstract
- This dissertation explores the performance of a new particle removal technology using polymer solutions and jet flow. One effective approach involves the use of a water jet falling vertically on the substrate coated with a layer of the viscoelastic polymer solution, called the "rinsing flow." This work aimed to understand this particle removal process at both the macroscopic and the molecular levels. Experimental efforts were made to observe the effect of fluid rheology on the transient rinsing flow pro file. Then, factors that influence particle removal of a silica-glass model system were explored. The molecular interaction between the polymer coils and the model particle surface was also investigated. The combined results of these experiments revealed that the overall procedure achieved particle removal through a multi-stage process. Adhesion was decreased due to both the reduction of van der Waals interaction in liquid media as well as polymer adsorption onto the particles. Then, the high extensional viscosity of the polymer solution, coupled with the extensional flow component of the jet flow, were found to be the dominating factors in providing the hydrodynamic force to overcome the remaining adhesion and achieve particle detachment.
Description
| Type of resource | text |
|---|---|
| Form | electronic; electronic resource; remote |
| Extent | 1 online resource. |
| Publication date | 2012 |
| Issuance | monographic |
| Language | English |
Creators/Contributors
| Associated with | Hsu, Tienyi Theresa |
|---|---|
| Associated with | Stanford University, Department of Chemical Engineering |
| Primary advisor | Frank, C. W |
| Primary advisor | Fuller, Gerald G |
| Thesis advisor | Frank, C. W |
| Thesis advisor | Fuller, Gerald G |
| Thesis advisor | Shaqfeh, Eric S. G. (Eric Stefan Garrido) |
| Advisor | Shaqfeh, Eric S. G. (Eric Stefan Garrido) |
Subjects
| Genre | Theses |
|---|
Bibliographic information
| Statement of responsibility | Tienyi Theresa Hsu. |
|---|---|
| Note | Submitted to the Department of Chemical Engineering. |
| Thesis | Thesis (Ph.D.)--Stanford University, 2012. |
| Location | electronic resource |
Access conditions
- Copyright
- © 2012 by Tienyi Theresa Hsu
- License
- This work is licensed under a Creative Commons Attribution Non Commercial 3.0 Unported license (CC BY-NC).
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