Abstract
The utilization of biopolymers in the applications that meet demands in society for sustainability and environmental safety has been limited. That is owing to the poor mechanical and thermal properties of biopolymers. The goal of this study is to improve the limitations of the biopolymers properties. polylactic acid (PLA) as one of the most important biopolymer was selected to investigate the effect of incorporating of natural halloysites nanotubes HNTs with different concentrations (0–8 wt%) on PLA chemical and hydrophobic properties. In the second series, Zirconium dioxide (ZrO2) nanoparticles were added to the PLA/HNTs film with the optimum mechanical properties in the first series. the chemical structure and surface wettability were investigated for both of PLA/HNTs and PLA/HNTs-ZrO2 bionanocomposites. The addition of ZrO2 resulted in appearance of OH groups in the FTIR graph. In addition, the increasing of ZrO2 loading led to increase the hydrophobicity of the PLA nanocomposites.
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