Effect of functionalized silica nanoparticles on the mass transfer process in active PLA nanocomposite films obtained by supercritical impregnation for sustainable food packaging

Javiera Sepulveda,Carolina Villegas,Alejandra Torres, Esteban Vargas,Francisco Rodriguez,Samuel Baltazar,Alejandro Prada,Adrian Rojas,Julio Romero,Simon Faba,María Jose Galotto

The Journal of Supercritical Fluids（2020）

引用 33|浏览25

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摘要

•Superficial lactic acid improves filler effect of sol-gel NPSiO2 in PLA matrix.•NPSiO2 nanoparticles incorporation did not affect the incorporation of cinnamaldehyde in PLA.•Functionalized NPSiO2 decrease the diffusion rate of cinnamaldehyde through PLA films.•NPSiO2 nanoparticles provide a tortuous path for oxygen diffusion.

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关键词

Nanocomposites,Surface-functionalized silica nanoparticles,Polylactic acid,Supercritical impregnation,Active compound mass transfer

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