Phase Field Model of Thermally Induced Phase Separation (TIPS) for the Formation of Porous Polymer Membranes

Author

Ashley GreenFollow
Aria Green, University of Arkansas, FayettevilleFollow

Date of Graduation

5-2018

Document Type

Thesis

Degree Name

Bachelor of Science in Mechanical Engineering

Degree Level

Undergraduate

Department

Mechanical Engineering

Advisor/Mentor

Millett, Paul

Committee Member/Reader

Millett, Paul

Committee Member/Second Reader

Huang, Adam

Abstract

Most membrane research and development has been done through experimental work, which can be costly and time consuming. An accurate computational model would greatly reduce the need for these experiments. The focus of the research presented in this paper is to create an accurate computational model for membrane formation using thermally induced phase separation (TIPS). A phase field model is employed to create this model including the Cahn Hilliard Equation and Flory Huggins Theory. This model produced computational results that correspond well with theoretical and experimental results. The model was then adapted to correspond to the PVDF/DPC polymer-solvent system by incorporating kinetics and thermodynamic considerations specific to the system.

Keywords

porous, membrane, TIPS, model, phase field, computational

Comments

Ashley Green is my legal name; Aria Green is my preferred name and the published name.

Citation

Green, A., & Green, A. (2018). Phase Field Model of Thermally Induced Phase Separation (TIPS) for the Formation of Porous Polymer Membranes. Mechanical Engineering Undergraduate Honors Theses Retrieved from https://scholarworks.uark.edu/meeguht/74