The manufacturing process for CNF involves conventional beating of wood pulp to a highly fibrillated state, followed by high pressure homogenisation of the resulting slurry. From the micrographs, this completely destroys any residual fibre backbones to yield an all-fibril dispersion – “Micro-Fibrillated Cellulose”.
Applications developed so far include a transparent hybrid epoxy/CNF film with high transparency and low thermal expansion (50-200C), and functional filters where the surface of the CNF is chemically modified, e.g. crosslinked to improve wet strength. Battery separators and capacitor dielectrics were mentioned as end-products.