Bio based nanocomposites have become of significant interest in recent years because they might facilitate the transition from a linear economy based on the disposal of production waste to a circular economy that utilizes waste as a resource for producing new materials. They have been studied in various sectors for various reasons such as: sustainability, lightness and high mechanical resistance, improvement of barrier and thermal properties and functionalization. Among the prominent bio-based materials, nanocellulose CNF stands out for its unique properties such as non-toxicity, biodegradability, high aspect ratio, large surface area, and mechanical strength, making it highly researched for various applications.