Abstract
The migration rule of common chemicals in PET (polyethylene terephthalate) beverage bottles under different external conditions was studied to provide reference for relevant food migration experiments and the formulation of standards. The numerical simulation software of MATLAB was used to simulate the migration of acetaldehyde under different thickness and temperature. The migration of acetaldehyde, phenol and benzaldehyde with different molecular weights were compared under optimal temperature and thickness conditions. The results showed that the mobility of chemical substances was positively correlated with the change of ambient temperature and molecular weight, but negatively correlated with the change of thickness of PET bottle. The migration rate of acetaldehyde with the lowest molecular weight was the lowest when the bottle thickness was 0.014mm and the ambient temperature was 298.15k. During the production of PET bottles, the bottle thickness should be appropriately thickened while meeting the cost and packaging requirements. PET beverage bottles also should be stored at low temperature during normal logistics transportation and storage.
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Acknowledgments
This work is supported by the National Natural Science Foundation of China (61973127), the Science and Technology Project of Guangdong Province (2017B090901064) and the Chaozhou Science and Technology Project of Guangdong Province (020ZX14).
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Zhang, Q., Sang, P., Chen, G. (2021). Numerical Simulation of Chemical Migration from PET Bottle to Beverage. In: Zhao, P., Ye, Z., Xu, M., Yang, L., Zhang, L., Zhu, R. (eds) Advances in Graphic Communication, Printing and Packaging Technology and Materials. Lecture Notes in Electrical Engineering, vol 754. Springer, Singapore. https://doi.org/10.1007/978-981-16-0503-1_103
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DOI: https://doi.org/10.1007/978-981-16-0503-1_103
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