Using a β-Cyclodextrin-functional Fe3O4 as a Reinforcement of PLA: Synthesis, Thermal, and Combustion Properties

ABSTRACTIn this work, Fe3O4 nanoparticles were chemically grafted with β-cyclodextrin (β-CD@Fe3O4). Fe3O4 nanoparticles were modified using N,N-dimethylformamide as a solvent, β-cyclodextrin as a modifier, and 3-glycidoxypropyltrimethoxysilane as a coupling agent at room temperature. The obtained modified Fe3O4 were characterized by X-ray diffraction, Fourier transform infrared spectroscopy, field emission scanning electron microscopy, transmission electron microscopy, and thermogravimetric analysis techniques. β-CD@Fe3O4 was incorporated into a poly(lactic acid) matrix to prepare new green nanocomposites with modified properties. β-CD@Fe3O4 showed good dispersion in the poly(lactic acid) matrix and thermal and combustion properties of the nanocomposites were improved.