Nanocrystalline Cellulose in a dry form, and method for controlling the dispersabalidade in water of a Nanocrystalline Cellulose

摘要

Nanocrystalline Cellulose in a dry form, and method for controlling the dispersababilidade in water of a nanocrystalline cellulose. Nanocrystalline Cellulose (NCC), in particular a dry film of NCC, dispersababilidade in water controlled, and a method for controlling the dispersababilidade of NCC drought controlling is ionic strength of electrolytic solution and valence of the ion is described.Suspensions of M - NCC sections containing counter monovalent ions (for example, M = Na +, K +, NH4 +, et4n +) produced by neutralization of the NCC of acid form (H - NCC) with the appropriate hydroxide, are easily dispersible in water when fully dried; this is unlike h NCC.The dispersion of M - NCC drought in aqueous environment is effectively prevented by a combination of (1) concentration of electrolyte and ionic strength increased, and (2) the highest valence cation component of the salt dissolved.In addition, the pretreatment of particles of M - NCC drought with an electrolytic solution having a polyvalent cation, for example, a bivalent or trivalent cation is sufficient to prevent the dispersion subsequent film m - NCC in pure water.