Migration Behavior of Butyl Acrylate from Adhesive to Dry Simulant Tenax
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Abstract:
The migration behavior of butyl acrylate from adhesive into Tenax was investigated. The migration results and their mechanisms of butyl acrylate in different simulants defined in European legislation were analyzed and compared. The results showed, at different temperatures, the migration of butyl acrylate reached equilibrium (except 175°C) in Tenax after a certain time. The migration process was in the dynamic equilibrium of “adsorption-desorption” for a long time at 20°C. The amount of migration increased with time at 70°C, and reached equilibrium after 72 h. Tenax rapidly adsorbed butyl acrylate in a short time at 100°C and 175°C, and then migration decreased by desorption. When the migration reached equilibrium in Tenax after 72 h at 70°C, it had the highest migration of 65.16 μg/kg. The migration in 95% ethanol, isooctane and Tenax were higher (p<0.05) with that in olive oil. The results of migration in Tenax was closest to that in olive oil, and the relative deviation was from 0.6% to 5.1% at low temperature (20°C, 70°C). The resulted showed that the migration behavior of butyl acrylate in Tenax was affected by various factors. The migration was not positively correlated with temperature and time. The migration in actual system was overestimated that in model test. In order to obtain the accurate and effective safety risk assessment of materials, it should be necessary to select the simulant scientifically according to the actual food contact materials.
