Polymers and TiO2 Based Nanocharges for Bio-Based Composites with Improved Flame Retardancy and Thermal Degradation

Abstract

The main objective of this work concerns the development of new eco-friendly composites based on biobased polymers for flame retardancy. Biobased cotton were employed as support for the fixation of biopolymers like chitosan (CT), titanium dioxide (TiO 2 ) as nanocharges, and polyvinylidene fluoride (PVDF) as binder. The resulting composites CO-TiO 2 -PVDF-CT were ther mally pressed to form compacted to ensure the surface compatibility. CO-TiO 2 -PVDF-CT were fully characterized by X-Ray diffractometer, scanning electron microscopy, optical microsco -py, contact angle, Fourier transform IR spectroscopy and differential scanning calorimetry. The thermal degradation, chemical coatings, surface modification properties were investigated. It was found that CO-TiO 2 -PVDF-CT composite are highly hydrophobic materials with good diffu sion resistance. PVDF and CT polymers induced an important role on the improvement of both flame retardancy and the thermal degradation. The degradation and elimination of FR from the composite product were studied. Finally, the toxicity of the prepared composite was performed to analyze the environmental impacts before and after the eco-path disposal treatment.