Heavy metal release from irradiated LDPE/nanometal composite films into food simulants
作者： Shan Lu , Xia Gao , Chang-Ying Hu , Yining Xia
DOI: 10.1016/J.FPSL.2020.100571
关键词:
摘要: Abstract Low-density polyethylene (LDPE) films containing three types of nanometals (ZnO, Cu, or Ag) were prepared and characterized. A release experiment was carried out on the nanocomposite subjected to treatments: no irradiation, gamma irradiation with solvent contact (10 kGy), without contact. The heavy metals from into solvents (water, 95 % ethanol, 3 acetic acid) recorded at room temperature. In general, likely promote metals. amount depended type nanometal solvent. An increase in Zn Cu observed ethanol Ag all end after film samples treated (with during irradiation). metal attributed accelerated surface oxidation as confirmed by XPS analysis irradiated powders.
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