Kinetic and thermodynamic studies of silver migration from nanocomposites
作者： Min Hee Kim , Tae-Hyun Kim , Jung A. Ko , Seonghyuk Ko , Jae-Min Oh
DOI: 10.1016/J.JFOODENG.2018.08.028
关键词:
摘要: Abstract To establish an applicable model and understand the release mechanisms from silver nanoparticle incorporated in polymeric film used food applications, we investigated migration low-density polyethylene with nanoparticles both distilled water 4 w/v% acetic acid at various temperatures. The was prepared silver-containing master batch characterized to contain homogeneously distributed nanoparticles. polymer matrix well explained by Korsmeyer-Peppas mathematical model. resulting n value, ranging 0.125 0.280, indicated that followed Fickian diffusion. kinetic rate constants (k) higher 4% than water. According Arrhenius equation, activation energy (Ea) calculated be 31.74 kJ mol−1 for 14.19 kJ mol−1 acid. Hence, results of this investigation could useful predicting understanding mechanism a LDPE into simulants.
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