Nano/Micro-Fibrillated Cellulose (M/NFC) have gained increasing attention for the production of new innovative materials due to their remarkable properties. The defibrillation of M/NFC generally requires intensive and energy consuming mechanical treatment which is preceeded by chemical and/or enzymatic pretreatments. The high cost of these extraction processes constitutes one of the main limitation of the M/NFCs broad utilisation.
The objective of NanoSteamEx is to propose an innovative low-energy and environmentally friendly combinative process for the production of M/NFC from bleached chemical kraft fibres, softwood and hardwood and non woody plant. The main originality of the project is to combine a steam explosion pretreatment with an organosolv/ionic liquid delignification (with ethanol or 1-ethyl-3-methylimidazolium acetate) followed by refining / grinding steps. An important part of the work is devoted to the development of reliable methods to characterise M/NFC in terms of morphological properties and chemical composition (hemicelluloses, lignin content, DP of cellulose).
The final goals are
Different raw materials are used in order to evaluate the potential of the studied process with a particular interest in:
Applications in the fields of packaging (films or nanopapers) and wood particleboard (tannins-based adhesives) will be considered.
- PI: Evelyne Mauret
- Co-PI: Nicolas Brosse
- PhD: Saad Nader
- LERMAB (Univ. Lorraine, France)
- LabEx ARBRE (Univ. Lorraine)