密胺餐具中三聚氰胺单体的迁移研究

Study on Migration of Melamine Monomer in Melamine Tableware

采用高效液相色谱法(HPLC)测定了密胺餐具中三聚氰胺单体的迁移量。研究了2种不同材质(脲醛表面覆密胺的制品、密胺树脂模塑制品)中三聚氰胺单体的迁移行为,以及浸泡温度和浸泡时间对密胺餐具中三聚氰胺迁移量的影响。实验结果表明:随着浸泡温度的升高,三聚氰胺单体的迁出量呈上升的趋势;特定温度下,三聚氰胺的迁出量随着浸泡时间的延长而增大。市面购得密胺餐具96份,其中密胺树脂模塑制品51份,脲醛表面覆密胺制品45份,脲醛表面覆密胺制品中三聚氰胺单体迁移量的合格率低于密胺树脂模塑制品。

Melamine monomer＇s migration quantity from melamine tableware was determined by high performance liquid chromatography.The migration behavior of melamine monomer in two kinds of different material（urea-formaldehyde resin covered by melamine resin and melamine resin produce） were studied.The impact of immersion time and immersion temperature on melamine monomer＇s migration was also studied.The test results showed that the migration quantity increases with immersion temperature rise;the migration quantity increases with migration time increase at specific temperature.Ninety-sixth melamine tableware bought from market were inspected,including fifty-one melamine resin produce and forty-five urea-formaldehyde resin covered by melamine resin.The pass percent of melamine monomer＇s migration quantity of urea-formaldehyde resin covered by melamine resin was lower than the melamine resin produce.