Cellulose, among the most common natural polymers present on Earth, has a multiscale organization in its native state. The utilization of different scales of native cellulose is proven to give interesting properties, such as: barrier properties, reinforcement, and transparency.
Those latter years, cellulose nanofibrils extraction was studied and optimized by industries and universities. However, several bottlenecks still prevail – suspension rheology, process stability, etc.– and innovative pretreatments are also still to be developed.
This thesis will then be organized in four main parts. Optimization of the existing process to enhance process stability, innovative adsorption pretreatments development and nanocellulose applications in the packaging sector will be investigated.