Mechanical characterization and computational modeling of gels
Abstract
Soft materials like gels have arisen as key component in a wide range of applications, ranging from rocket propellants to complex materials for biomedical devices and drug delivery. Experimental studies have focused on the characterization of a number of gels involving macromolecules such as proteins and polysaccharides; however the link between the microstructure of these systems with their resulting macroproperties is still lacking. From the experimental point of view, this research describes the rheological behavior of some complex systems using the appropriate rheological constitutive equations. Non-conventional rheological techniques are also considered to describe some fragile systems that are significantly disturbed during testing with conventional instruments. From the computational perspective, this research provides insights on how molecular conformation and interactions affect the rheological properties of colloidal and polymeric gels. Molecular and Brownian Dynamics simulation were performed to get a better understanding on gelation processes and to explore new applications for gelled materials.
Degree
Ph.D.
Advisors
Campanella, Purdue University.
Subject Area
Chemical engineering|Materials science
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