Date of Award
2023
Document Type
Thesis
Degree Name
Master of Science in Engineering (MSE)
Department
Chemical and Materials Engineering
Committee Chair
Isaac Torres-Díaz
Committee Member
Anuradha Subramanian
Committee Member
Agnieszka Truszkowska
Committee Member
Jeffrey Weimer
Subject(s)
Colloids, Surfaces (Technology), Adhesion, Biomimicry
Abstract
Synthetic spiky colloids are attractive for different technologies, but quantifying the effect of orientation on the particle-surface interactions is still lacking and hinders the use of spiky colloids in different applications. This thesis tackles one of the main challenges in colloid science and engineering to describe the electrostatic and van der Waals interaction energies of a dilute suspension of spiky anisotropic colloids with a planar wall. The model reported here quantifies the DLVO interactions of a spiky particle with a planar wall, extending the surface element integration method and including the effects of particle position and orientation. The effect of spike distribution, spike aspect ratio, particle-wall distance and orientation on the interaction energy, force, and rolling torque are also analyzed. Results show that the DLVO interaction energy and force have a topological correlation with the tessellated orientational space of the spiky particle and a dual effect in adhesion energy.
Recommended Citation
Andrew, Elizabeth, "Topological interactions of spiky particles with a planar wall" (2023). Theses. 461.
https://louis.uah.edu/uah-theses/461