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Proceedings of the 17th IAPRI World Conference on Packaging (IAPRI 2010 E-BOOK)

Tianjin,China,10.12-10.15，2010

ISBN: 978-1-935068-36-5 Scientific Research Publishing, USA

E-Book 886pp Pub. Date: October 2010

Category: Chemistry & Materials Science

Price: $80

Title: Numerical Simulation on Migration of Chemical Substances from HDPE into Foods
Source: Proceedings of the 17th IAPRI World Conference on Packaging (IAPRI 2010 E-BOOK) (pp 230-232)
Author(s): Yong Zhu, Packaging Engineering Institute, Jinan University, Zhuhai, Guangdong 519070, P.R. China
Zhiwei Wang, Packaging Engineering Institute, Jinan University, Zhuhai, Guangdong 519070, P.R. China
Abstract: Numerical simulation of migration of chemical substances from HDPE into foods（simulants）is performed based on the finite element method(FEM). The results show that concentration of migrants in foods at equilibrium increases with the increase of its initial concentration in packaging. Diffusivity of migrants is key to migration dynamics. Partition coefficient represents ration of concentration in HDPE to that in foods at equilibrium. For multilayer packaging, functional barrier layer is able to efficiently delay migration. Thickness of barrier layers prominently influences barrier effect. The method can be utilized to predict migration of chemical substances having mixed boundary conditions, developed as a total solution food package for migration problems.
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