Wednesday, September 7, 2016
What is nanocellulose?
There was a lot of discussion last week at the ISO TC6 meeting in Stockholm about cellulosic nanomaterials. See this video for some information from FPInnovations (Canada).
Nanocellulose is a term referring to nano-structured cellulose. This may be either cellulose nanofibers (CNF) also called microfibrillated cellulose (MFC),nanocrystalline cellulose (NCC), or bacterial nanocellulose, which refers to nano-structured cellulose produced by bacteria. CNF is a material composed of nanosized cellulosefibrils with a high aspect ratio (length to width ratio).
Nanocellulose/CNF or NCC can be prepared from any cellulose source material, but woodpulpis normally used. The nanocellulose fibrils may be isolated from the wood-based fibers using mechanical methods which expose the pulp to high shear forces, ripping the larger wood-fibres apart into nanofibers.
There are proposed uses for cellulosic nanomaterials in cosmetics, medicine, paint, plastic and other applications.