Surface cleaning technology using non-newtonian fluids

Placeholder Show Content


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.


Type of resource text
Form electronic; electronic resource; remote
Extent 1 online resource.
Publication date 2012
Issuance monographic
Language English


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)


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

© 2012 by Tienyi Theresa Hsu
This work is licensed under a Creative Commons Attribution Non Commercial 3.0 Unported license (CC BY-NC).

Also listed in

Loading usage metrics...