Hydrated Cellulose

hydrated cellulose

[′hī‚drād·əd ′sel·yə‚lōs]
(materials)

Hydrated Cellulose

 

one of the structural modifications of cellulose; it has the same chemical composition as natural cellulose but different properties. It is prepared from natural cellulose by precipitation from solution, by treating cellulose with concentrated (17-35 percent) alkali solutions and then separating the resultant alkaline cellulose, by esterification of the cellulose with subsequent saponification of the ester, or by mechanical milling of the cellulose.

During the formation of hydrated cellulose there is weakening of intermolecular bonds, and consequently also a change in the properties of natural cellulose. Hydrated cellulose is more hygroscopic than natural cellulose, and it has greater dyeability, solubility, and reactivity. The conversion of cellulose into its hydrate is one of the stages in making viscose fibers and cuprammonium fibers.

References in periodicals archive ?
The use of cellulose phosphates for obtaining hydrated cellulose fibers produces viscose rayon with an improved ability to absorb a coloring agent (2-9 times) and a high coefficient of homogeneity of distribution of the coloring agent and low combustibility.
The all natural formula - ingredients are cane sugar derivatives, a proprietary blend of botanical extracts, hydrated cellulose, purified water and a natural aerosol propellant (nitrogen)- eliminates the need for soaking, scrubbing, blotting or mopping.