覆膜铁罐用于酸性食品包装的金属元素迁移问题浅析  

Migration of Metal Elements to Acid Food Simulants in Polymer-laminated Steel Can

作　　者：顾婕 Gu Jie(Shanghai Baosteel Packaging Co.,Ltd.,Shanghai 201908,China)

机构地区：[1]上海宝钢包装股份有限公司,上海201908

出　　处：《广东化工》2022年第19期38-39,22,共3页Guangdong Chemical Industry

摘　　要：以覆膜铁罐为研究对象,通过电感耦合等离子体发射光谱(ICP-OES)法同时测定覆膜铁罐中10种金属元素Ti、Fe、Zn、Mn、Al、Cr、Pb、Ni、Cu与Cd在4%乙酸的酸性食品模拟物中的迁移量。随着温度的升高与时间的延长,溶液中金属迁移量逐渐增大。SEM、DSC以及XRD测试结果显示,酸会导致复合膜降解,使其热塑性和阻隔能力下降。The migration of 10 metal elements(Ti, Fe, Zn, Mn, Al, Cr, Pb, Ni, Cu and Cd) in the polymer-laminated steel can to the 4 % acetic acid food simulants was determined by inductively coupled plasma atomic emission spectrometry(ICP-OES). With the increase of temperature and time, the amount of metal migration to the solution increases gradually. The results of SEM, DSC and XRD showed that the acid could degrade the composite membrane and reduce its thermoplastic and barrier ability.

关 键 词：覆膜铁 金属元素 酸性食品 迁移 

分 类 号：TS207.3[轻工技术与工程—食品科学]