The effects on the properties of PET bottles of changes to bottle-base geometry

Demirel, B and Daver, F 2009, 'The effects on the properties of PET bottles of changes to bottle-base geometry', Journal of Applied Polymer Science, vol. 114, no. 6, pp. 3811-3818.


Document type: Journal Article
Collection: Journal Articles

Title The effects on the properties of PET bottles of changes to bottle-base geometry
Author(s) Demirel, B
Daver, F
Year 2009
Journal name Journal of Applied Polymer Science
Volume number 114
Issue number 6
Start page 3811
End page 3818
Total pages 8
Publisher John Wiley & Sons
Abstract Poly(ethylene terephthalate) (PET) bottles are commonly used for packaging of carbonated beverages. Stress cracking in the petaloid-shaped base of the filled bottle has been costly to the beverage industry. This study compares the performance of a standard bottle and a bottle with a base geometry optimized against environmental stress cracking (ESC). The crystallinity of the bottle base is evaluated across the base diameter for both bottles. Moreover, to explain the mechanism of the crack formation and propagation, the cracks in the bottle base are investigated through environmental scanning electron microscopy (ESEM) and optical microscopy. Top-load strength, burst strength, and thermal stability are also reported.
Subject Polymers and Plastics
Keyword(s) environmental stress cracking (ESC)
poly(ethylene terephthalate) (PET) bottles
DOI - identifier 10.1002/app.30990
Copyright notice Copyright 2009 Wiley Periodicals
ISSN 0021-8995
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