Applications of Sodium cellulose in Building Materials


Sodium Cellulose Applications

Natural fiber (like cotton) after alkali treatment can make ionic-type cellulose ether with monochloroacetic acid sodium as the etherifying agent and via a series of reactions and processes. The degree of substitution (DS) is usually 0.4-1.4 and has a big effect on the performance.

1. Sodium Cellulose has relatively strong hygroscopicity and contains a large amount of water when stored in ordinary conditions.

2. The Sodium Cellulose aqueous solution doesn’t produce hydrogel. The viscosity decreases with the rise of temperature and will be irreversible when the temperature is over 50℃.

3. The stability is greatly affected by the pH value. It can usually be used in the gypsum-based mortar not in cement-based mortar. In the condition of high alkalinity, it will lose viscosity.

4. The water retention capacity is far lower than that of methyl cellulose. It has a delayed coagulation effect on the gypsum-based mortar and can also reduce its strength. However, the price of Sodium Cellulose is far lower than that of methyl cellulose.

 Sodium Cellulose Applications

Also you may be interested in: Carboxymethyl Cellulose Properties