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

ABSTRACT

In 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.

GRAPHICAL ABSTRACT

KEYWORDS:

• Functional Fe₃O₄
• nanocomposite
• polylactic acid
• thermal properties