What Are The Functions Of Cellulose Ether In Cement Mortar?

What Are The Functions Of Cellulose Ether In Cement Mortar?

In ready-mixed mortar, only a little bit of cellulose ether can significantly improve the performance of wet mortar. It can be seen that cellulose ether is a major additive that affects the construction performance of mortar.

The selection of cellulose ethers with different varieties, different viscosities, different particle sizes, different degrees of viscosity and added amount will also have different effects on the improvement of the performance of dry mortar. At present, many masonry and plastering mortars have poor water retention performance, and water slurry separation occurs after a few minutes of standing still. Therefore, it is very important to add cellulose ether to cement mortar.

Cellulose ether-water retention

Water retention is an important performance of methyl cellulose ether, and it is also a performance that many domestic dry mortar manufacturers, especially those in areas with higher temperatures in the south, pay attention to.

In the production of building materials, especially dry mortar, cellulose ether plays an irreplaceable role, especially in the production of special mortar (modified mortar), it is an indispensable and important part.

The viscosity, dosage, environmental temperature and molecular structure of cellulose ether have a great influence on its water retention performance. Under the same conditions, the higher the viscosity of the cellulose ether, the better the water retention; the higher the content, the better the water retention. Usually, a small amount of cellulose ether can greatly increase the water retention of the mortar, and when the content reaches a certain level When the temperature is higher, the increasing trend of water retention rate slows down; as the ambient temperature rises, the water retention of cellulose ether usually decreases, but some modified cellulose ethers also have better water retention under high temperature conditions; fibers with lower substitution degree Plain ether has better water retention performance.