1. Author: Luke Blanchard Professor: Dr. D. Tretheway Class: ME 447 Date: 6/4/2015

2. Covers the sweetness of the flavoring One of the factors that differentiates soda from juice

3. The Shelf Life of Soda

5. Approximate % Loss Bottle Size 2 L0.5 L Creep 1.10.5 Water loss 0.30.5 Sorption 0.82.0 Closure Leakage 0.10.3 Subtotal 2.33.3 Permeation 12.711.7 Total15.0 The numbers shown in the table above were retrieved from “Kodapak PET Thermoplastic Polyester and Shelf Life of Carbonated Beverages” by Eastman Chemical Products.

6. Permeation The process of: A substance being absorbed into a membrane Diffusing through the membrane Desorbing from the membrane into the solution on the opposite side

7. Factors Affecting Permeation Temperature The crystal structure of the membrane The pressure difference between the sides of the membrane Thickness of the membrane

8. The Setup of a Test Performed By M. Profaizer

10. FEA Models of Experiment

11. Results of Experiment (Temperature)

12. Results of Experiment (Varying Temperature)

13. Results of Experiment (Pressure)

14. Conclusion: How to Keep Your Pop Fresh

15. Reference Profaizer, M. “Shelf life of pet bottles estimated via a finite elements method simulation of carbon dioxide and oxygen permeability.” Brazilian Journal of Food Technology (2007): Print.

16. Questions?