Environmental Impacts of Graphene Oxide for Enhancing Crystallization Behavior and Promoting Degradation of Polylactic Acid in Saline Solution.

ABSTRACT: The influence of the graphene oxide (GO) in weight percentage from 0.05 to 0.6 wt % on the PLA's physical properties was investigated using X-ray Diffraction (XRD), DSC, thermogravimetric analysis, polarized optical microscopy, and impedance measurements. The experimental results indicate that incorporating GO into Polylactic acid (PLA) improves its thermal properties by quickly reaching the optimum percentage of crystallinity (from ∼8.5 to 55%), slightly increasing the maximum thermal degradation temperature (from 340 to 347 °C), and drastically reducing the size of PLA's spherulites. Additionally, the electrical impedance values decreased by 64% as the percentage of GO increased from 0.05 to 0.6 wt %. Furthermore, the PLA composite was soaked in a 10 wt % NaCl solution for different time

SUBMITTER: El-Taweel SH 

PROVIDER: S-EPMC12368695 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature