摘要
目的模拟苯酚（Phen01）、2,6-二异丙基萘（2，6-DIPNs）及邻苯二甲酸二丁酯（DBP）等3种有机污染物穿过纸张向所包装食品迁移的过程，同时测定以上3种有机污染物在纸张与空气之间的分配系数（Kp.a）。方法根据纸张具有孔隙结构的特点，引进线性阻滞系数（Rm）的概念对菲克第二定律（Fick’Slaw）进行修正，将修正后的迁移方程解与迁移实验结果进行对比，得到有机污染物在纸质包装材料中的扩散系数（绒）值。结果在75℃与100℃的条件下，磷值的数量级介于10-5～10-4之间，与已有的研究结果相符合。结论与D。一样，尺。也是描述纸质包装材料中有机污染物迁移性能的重要参数之一。
The migration of three organic contaminants, namely phenol, 2,6-DIPNs and DPB, from the surface of food packaging paper into food stimulant was studied. Meanwhile, the partition of these three organic pollutants between the paper and air was surveyed and the partition coefficient （Kp.a） was calculated. For the organic contaminants that could be adsorbed on the surface of the interlaced fibers of the paper, the retardation coefficient （Rm） was introduced to correct the Fick＇ s law to establish the predictive migration model. Comparing the results of the predictive migration model and the migration tests, the diffusion coefficient （Dp） of the organic contaminants in the paper could be obtained. It turned out that the values of Dp were in range of 10-5 10-4 at 75 ℃ and 100 ℃, which were consistent with the existing research results. Therefore, like diffusion coefficient, retardation coefficient is also a significant parameter to describe the migration properties of organic contaminants in paper packaging material.
出处
《包装工程》
CAS
CSCD
北大核心
2016年第1期19-24,共6页
Packaging Engineering
基金
广东省高校优秀青年创新人才培养计划(2013LYM-0106)
关键词
纸质食品包装
迁移
扩散系数
纸张孔隙率
吸附
food packaging paper
migration
diffusion coefficient
paper porosity
adsorption
