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Correlation Between Rheological Measurements and Morphological Features of Lignocellulosic Micro/nanofibers from Different Softwood Sources by Ferran Serra-Parareda; Quim Tarrés; Pere Mutjé; Ana Balea; Cristina Campano; Jose Luis Sánchez-Salvador; Carlos Negro; Marc Delgado-Aguilar is a Materials Science article available to read on EtoBox.

What is Correlation Between Rheological Measurements and Morphological Features of Lignocellulosic Micro/nanofibers from Different Softwood Sources about?

The transition of nanocellulose production from laboratory to industrial scale requires robust monitoring systems that keeps a quality control along the production chain. The present work aims at providing a deeper insight on the main factors affecting the rheological behavior of (ligno)cellulose micro/nanofibers (LCMNFs) and cellulose micro/nanofibers (CMNFs) and how they could correlate with their characteristics. To this end, 20 types of LCMNFs and CMNFs were produced combining mechanical refining and high-pressure homogenization from different raw materials. Aspect ratio and bending capacity of the fibrils played a key role on increasing the viscosity of the suspensions by instigating the formation of entangled structures. Surface charge, reflected by the cationic demand, played opposing effects on the viscosity by reducing the fibrils' contact due to repulsive forces. The suspensions also showed increasing shear-thinning behavior with fibrillation degree, which was attributed to increased surface charge and higher water retention capacity, enabling the fibrils to slide past each other more easily when subjected to flow conditions. The present work elucidates the existing relat

Who reads Correlation Between Rheological Measurements and Morphological Features of Lignocellulosic Micro/nanofibers from Different Softwood Sources?

Author

Ferran Serra-Parareda; Quim Tarrés; Pere Mutjé; Ana Balea; Cristina Campano; Jose Luis Sánchez-Salvador; Carlos Negro; Marc Delgado-Aguilar

Publisher

Elsevier BV

Published

2021

Language

EN

Field

Materials Science (Physical Sciences)