Nanocellulose fiber

Nanofibers are generally produced from polymers which deviate from the conventional fiber-forming type of materials, and so it may be apprehended that the scope of use of these nanofibers may be far beyond the use of standard fibers, microfibers or fibrous materials. The bottom-up method modifies the fibers at a molecular or supramolecular level of fragmentation and transforms them into a polymer/polymer blend before the formation of fibers, which gives them new, specific properties favorable from a practical point of view. Nanocellulose fibers possess optimized product properties and target-directed development, quantification of eco-efficiency and sustainability factors. 

The wood nanocellulose fibers are suitable for solidification of emulsion paints and filter aids, useful for both primary rough filtration and precision filtration. Moreover, nanocellulose from wood is used in paper making as a coating and dye carrier in paper tinting (Matsuda 2000 Matsuda Y et al. 2001). Additionally, wood nanocellulose can be employed in the food industry as a thickening agent, a gas barrier, and in moisture resistant paper laminate for packaging (loelovich and Leykin 2004). 

Keywords Natural fibers, natural fiber composites, micro and nanocellulose fibers, cement matrix, Portland cement... 

Based on the above concept, we developed a new supramolecular associated form of glucan chains, nematic ordered cellulose (NOC), which is highly ordered, but not crystalline (Kondo et al. 2001). NOC has unique characteristics in particular, its surface properties provide with a function of tracks or scaffolds for regulated movements due to the inverse force in production of nanocellulose fibers of Acetobacter xylinum (Kondo et al. 2002). When the... 

Figure 12.8 shows the morphological features of cellulose, NC, NC/PVA, and AMO-P(AA-co-AMPS)-g-NC/PVA. Cellulose seems to be fibrous in nature, while, NC looks fluffy and behaves like a gel, which may be due to the increased hydrophi-licity. This gel structure is suitable for the drug delivery vehicles. NC/PVA combines both the nature of NC and PVA. Nanocellulose fibers appear to be dispersed in the PVA matrix. AMO-P(AA-c<9-AMPS)-g-NC/PVA clearly indicates the drug loading and the polymers adhered on the surface of the NC/PVA composite. 

Pereda M, Arnica G, Racz I, Marcovich NE (2011) Structure and properties of nanocomposite films based on sodium caseinate and nanocellulose fibers. J Food Eng 103 76-83... 

Conventional Polyurethanes Reinforced with Nanocellulose Fibers... 

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