农用地膜总迁移量的研究  

Study on Overall Migration Quantity of Agricultural Ground Film

作　　者：王永香 沈霞[1] 左莹[1] 张楠[1] 李军[1] WANG Yong-xiang;SHEN Xia;ZUO Ying;ZHANG Nan;LI Jun(Shanghai Institute of Quality Inspection and Technical Research,Shanghai 201114,China)

机构地区：[1]上海市质量监督检验技术研究院,上海201114

出　　处：《合成材料老化与应用》2019年第1期69-71,84,共4页Synthetic Materials Aging and Application

基　　金：上海市科学技术委员会研发公共服务平台建设项目<上海市日用消费品质量安全检测专业技术服务平台>(项目编号:14DZ2293000)资助;上海市质量监督检验技术研究院科研项目(KY-2018-9-QH)

摘　　要：以农用PE材质地膜为研究对象,参照GB 31604. 8-2016,分别以4%乙酸(70℃,2h)、10%乙醇(70℃,2h)、4%乙酸(40℃,10d)、10%乙醇(40℃,10d)作为模拟条件对其总迁移量进行研究。结果表明,同一浸泡温度时间条件下总迁移量4%乙酸> 10%乙醇,同一模拟液条件下总迁移量40℃10d> 70℃2h。即农用PE地膜长期与酸性食品接触更容易迁移出非挥发性物质。With agricultural ground PE film as the object and GB 31604.8-2016 as the reference standard of the study,we researched the overall migration quantity of the following simulation conditions:4%acetic acid(70℃,2h),10%ethanol(70℃,2h),4%acetic acid(40℃,10 d)and 10%ethanol(40℃,10 d).The results showed that the overall migration quantity of 4%acetic acid is big than that of 10%ethanol at the same soak temperature and time.The overall migration quantity of 40℃10 d is big than that of 70℃2h under the same simulated solution.In other words,the agricultural ground PE film are easier to migrate out of non-volatile substances when they are contact to acidic food for a long time.

关 键 词：农用地膜 总迁移量 模拟液 浸泡温度和时间 

分 类 号：O65[理学—分析化学]