对胶粘剂中丙烯酸正丁酯在Tenax的迁移行为进行研究，并分析比较了欧盟标准规定的转化条件下不同模拟物中丙烯酸正丁酯的迁移情况和迁移机理。结果表明，Tenax中丙烯酸正丁酯在不同温度下经过一定时间后迁移达到平衡（175 ℃除外）；20 ℃下目标物的迁移长期处于“吸附-脱附”的动态平衡中；70 ℃下随着时间增长迁移量不断上升，72 h后达到平衡；100 ℃和175 ℃下Tenax在短时间内快速吸附目标物，之后发生脱附迁移量下降；当模拟物为Tenax，70 ℃，72 h时，胶粘剂中丙烯酸正丁酯达到迁移平衡时的迁移量最大，为65.16 μg/kg。转化条件下95%乙醇、异辛烷和Tenax中目标物的迁移量均大于橄榄油的结果，且结果差异较大，其中Tenax的结果与橄榄油最接近，在低温条件下（20 ℃，70 ℃）差距较小，相对偏差在0.6%~5.1%之间。结果证明，丙烯酸正丁酯在Tenax中的迁移行为受多种因素的影响，迁移量并非随着温度和时间呈正相关的关系；使用替代模拟物进行迁移试验所获得的结果“高估”了实际情况下的迁移量，因此需依据食品接触材料的实际情况科学地选择模拟物，才能对材料进行准确有效的安全风险评估。

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.

国家重点研发计划项目（2016YFF0203705）；广东检验检疫局科技项目（2018GDK07）