热敏纸中双酚A在水性介质中迁移行为的研究

A study on migration of bisphenol A in aqueous solution for thermo-sensitive paper

选用5种包括汗液模拟液(A)、汗液模拟液(B)、唾液模拟液(A)、唾液模拟液(B)、自来水分别代表人体的汗液、唾液、环境中的水,对热敏纸中双酚A(BPA)进行了水性介质中迁移行为的研究。结果表明:随着时间的延长,BPA向各种模拟物中的迁移量均增大;随着温度的升高,BPA向各种模拟物中的迁移速率和迁移量均增大;5种模拟液中,水对BPA的迁移量最大,其它4种模拟物对BPA的迁移量基本一致,由于BPA是典型的酚类弱酸,因此BPA向碱性溶液中的迁移速度略快于酸性介质。

The migration behavior of BPA in aqueous solution for thermal-sensitive paper was researched with selection 5 simulacrums included acidic sweat （A）, basic sweat （B）, acidic saliva （A）, basic saliva （B） and tap water, which represent human sweat, human saliva and water in environment, respectively. The results showed that the migration of BPA to various simulacrums increases with the time, and the migration rate and migration increases as the temperature rises. The migration of BPA into water is higher than the other four simulacrums. Because BPA is the typical weak phenolic acid, migration of BPA in the alkaline solution rate is slightly faster than in acidic solution.