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Enseignement scientifique et technique - BIOCEB-Bio-based : Characterization of Bio-based Materials

Domaine > Département Sciences de la Vie et Santé.

Descriptif

Acquaint the student with plant-based fibres and nanofibres: structure,
physical and chemical behavior as well as applications

Objectifs pédagogiques

  • Knowledge and understanding - For a passing grade the student must :
    • Be able to tell the physical and chemical distinctions between natural fibres, regenerated fibres, and nanofibres
    • Be able to describe the basic structures, properties and functions of common hemicelluloses and lignins
    • Master the morphology of the native cellulose microfibril and acknowledge how it affects nanocellulose preparation and properties
    • Be able to detect the major obstacles and difficulties in cellulose dissolution and regeneration through basic laws of physical chemistry
    • Be able to explain the main pathways to chemical modification of cellulose, including nanocellulose
    • Be able to apply basic structure-property relationship to cellulose-based fibres and understand their implications in most common modern applications
  • Judgement and approach - For a passing grade the student must
    • Be able to distinguish the special nature of plant-based fibres and assess how the properties affect their applicability
    • Be able to point out the main bottlenecks in modern applications of cellulose-based fibres, and fibre components
    • Be able to choose correct analytical methods for assessing certain properties of cellulose-based fibres and their applications

Format des notes

Validé / non validé

Pour les étudiants du diplôme Diploma in Biological and Chemical Engineering for a Sustainable Bioeconomy (Bioceb) / Diplôme en Ingénierie Chimique et Biologique pour une Bioéconom

L'UE est acquise si Note finale >= Validé
  • Crédits ECTS acquis : 5 ECTS

Le coefficient de l'UE est : 5

Pour les étudiants du diplôme MASTER - BIOLOGIE INTEGRATIVE ET PHYSIOLOGIE

L'UE est acquise si Note finale >= Validé
  • Crédits ECTS acquis : 5 ECTS

Le coefficient de l'UE est : 5

Programme détaillé

  • Isolation of wood and non-wood fibres from the plant material ;
  • cell wall structure of lignocellulosic fibres ;
  • chemical structure and most common chemical reactions of cell wall components ;
  • structure-property relationships of lignocellulosic fibres ;
  • sorption behaviour and effect on properties ;
  • fibre mechanics and modelling ;
  • defects in fibres and their effect on properties ;
  • dissolution of cellulose and manufacture of regenerated cellulose ;
  • structure and properties of regenerated cellulose ;
  • nanocellulose isolation, characteristics and applications.

Mots clés

ibre cell wall, cellulose microfibril, nanocellulose, lignin, hemicellulose, functional materials, regenerated fibres
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