有限厚纸塑复合包装材料中化学物迁移预测模型及实验验证  

Migration Prediction Model of Chemical Substances from Limited Thickness Paper Plastic Packaging Material and Its Verification

作　　者：黄秀玲[1] 王永国[1] 李明[1] 刘全校[2] 王志伟[3] 

机构地区：[1]上海大学,上海200072 [2]北京印刷学院印刷包装材料与技术北京市重点实验室,北京102600 [3]暨南大学包装工程研究所,珠海519070

出　　处：《包装工程》2011年第11期8-11,共4页Packaging Engineering

基　　金：北京市重点实验室开放课题基金(KF201001);中国博士后基金(D10010909051);上海大学创新基金(A10010909904)

摘　　要：以真实纸塑包装-化学物-食品体系为依据,基于一维Fick扩散理论,给出了初始条件和边界条件,引入了纸和塑料涂层界面处的分配系数kCP等,建立了迁移预测模型,得到了解析解。同时,实验研究了材料4015和3312中化学物1-羟基环己基苯基甲酮(184)和2,2-二甲氧基-苯基甲酮(651),在60℃条件下向不同食品模拟物的迁移,并对实验值和模型预测值进行了对比分析。结果表明,污染物在塑料中的扩散系数选用最安全值时,模型预测值偏高于实测值,即模型预测值能最大限度地保证包装的使用安全性。According to actual system of paper/plastic packaging-compound-food,diffusion equations were built based on one-dimensional Fick diffusion theory.Partition coefficient kCP between paper and plastic was considered in the prediction model.Analytical solutions were obtained under specific initial conditions and boundary conditions.In addition,the migration of migrant 1-hydroxycyclohexyl-1-phenyl ketone and benzyldimethyl ketal from paper-plastic materials 4015 and 3312 into different food simulant at 60 ℃ was studied.The experimental migration data based on experiment and calculated values based on the model were analyzed.The results showed that calculated values are higher than the experimental values.The higher calculated values were caused because of the ＂worst-case＂ values of DC.As far as this DC is concerned,this model can ensure the using safety of packaging.

关 键 词：迁移 分配系数 纸塑包装 模型 

分 类 号：TB487[一般工业技术—包装工程] TS206.4[轻工技术与工程—食品科学]