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Electron microscopic study of the PVC bottle wall: the food–plastic interaction

✍ Scribed by M. S. Choudhry; F. Lox; A. Buekens; P. Decroly

Publisher
John Wiley and Sons
Year
1998
Tongue
English
Weight
266 KB
Volume
11
Category
Article
ISSN
0894-3214

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✦ Synopsis

PVC bottle wall samples with different conditions of treatment, without airblowing, with air-blowing and with air-blowing in contact with water were investigated. ESCA results of the PVC bottle wall indicated that the surface composition was almost the same in both air-blown and non-air-blown samples. In the case of air-blown samples ®lled with water, the ratio of O/C and CI/C rose considerably.

The purpose of this study was to simulate transport vibrations and to develop a technique to evaluate the effects of vibration on migration. Solvent extraction of the water in contact with PVC bottles was made and subsequent gas chromatographic analysis facilitated the quanti®cation of migrant 2-ethylhexanoic acid. The results con®rm that migration is strongly induced by mechanical stresses.

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