两种食品用塑料复合膜袋典型材质中溶剂残留的测定与迁移规律研究  

Determination and Migration Law of Solvent Residues in Two Typical Materials of Plastic Composite Film Bags for Food Use

作　　者：张智力 高勇 王灵玺 韩立鑫 亓琛 许超 ZHANG Zhi-li;GAO Yong;WANG Ling-xi;HAN Li-xin;QI Chen;XU Chao(Shandong Institute for Product Quality Inspection,Shandong Provincial Key Laboratory of Test Technology for Material Chemical Safety,National Inspection and Testing Center for Packaging Product(Ji'nan),National Supervision and Inspection Center for Sports Products Quality(Shandong),Ji'nan 250102,China)

机构地区：[1]山东省产品质量检验研究院山东省材料化学安全检测技术重点实验室国家包装产品质量检验检测中心(济南)国家体育用品质量监督检验中心(山东),山东济南250102

出　　处：《塑料科技》2024年第8期121-125,共5页Plastics Science and Technology

基　　金：国家市场监管总局科技计划项目“食品相关产品典型风险物质检测方法开发与数据库构建”(2022MK073);山东省市场监督管理局科研项目“食品相关产品中风险物质监控数据库建设与应用”(2023MR08)。

摘　　要：研究重点检测了双向拉伸聚丙烯/低密度聚乙烯(BOPP/LDPE)和尼龙/流延聚丙烯(PA/CPP)两种典型材质复合膜袋中溶剂残留量,并考察了其迁移规律。选择的两种典型材质样品中溶剂残留不符合率为90%。典型样品在常温放置18个月后,BOPP/LDPE样品溶剂残留总量减少了95%,PA/CPP样品溶剂残留总量减少了88.2%;在4个不同温度下,经80℃,1 h后,BOPP/LDPE样品溶剂残留完全挥发;PA/CPP样品溶剂残留总量减少了95.8%。实验温度的升高和实验时间的延长都会使复合膜袋的溶剂残留总量和苯类残留量呈递减趋势。食品用塑料复合膜袋的材质、实验温度、实验时间对两种典型材质样品中溶剂残留量的迁移规律有重要影响。建议对相应的检测方法标准进行修订,积极推进产品绿色包装评价工作,更好地保证食品用塑料复合膜袋的质量。The research focused on detecting solvent residues in two typical composite film bags made of biaxially oriented polypropylene/low-density polyethylene(BOPP/LDPE)and nylon/cast polypropylene(PA/CPP),and investigated their migration patterns.The non-compliance rate of solvent residue in the selected two typical material samples is 90%.After 18 months of storage at room temperature,the total solvent residue in BOPP/LDPE samples decreased by 95%,and the total solvent residue in PA/CPP samples decreased by more than 88.2%.Four different temperatures were tested,and after 1 hour at 80℃,the residual solvents in the BOPP/LDPE samples evaporated completely;the total amount of solvent residue in PA/CPP samples decreased by more than 95.8%.Both an increase in experimental temperature and an extension of time will cause a decreasing trend in the total solvent residue and benzene residue in the composite film bag.The material,test temperature,and test time of plastic composite film bags for food have important effects on the migration pattern of solvent residues in two typical material samples.It is suggest revising the corresponding testing method standards,actively promoting the evaluation of green packaging for products,and better ensuring the quality of plastic composite film bags for food.

关 键 词：复合膜袋 典型材质 溶剂残留 迁移规律 

分 类 号：O657.71[理学—分析化学]