University of Twente Student Theses


Pattern formation by evaporative drying of colloidal solutions

Witteveen, H. (2012) Pattern formation by evaporative drying of colloidal solutions.

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Abstract:Drying of polystyrene latex nanoparticles (PSLnp) on a surface can result in pattern formation. In this report, the dependency of concentration and particle size on pattern formation is investigated. There will also be looked at difference when the solution will be dried on a flat surface, or on a skewed surface. Quantizing the clustering will be done using a clustering parameter. PSLnp will be diluted in different concentrations of isopropyl alcohol (IPA). Atomic force microscopy (AFM) will be used to determine the pattern formation of the particles. The results will be processed with a custom made Matlab program, which gives us the data to compare our different samples.
Item Type:Essay (Bachelor)
Faculty:TNW: Science and Technology
Subject:33 physics
Programme:Applied Physics BSc (56962)
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