HEMC MH200M

In hydroxyethyl methyl cellulose, the introduction of methoxy groups reduces the surface energy of the aqueous solution containing hydroxyethyl methyl cellulose, so that hydroxyethyl methyl cellulose has an air-entraining effect on cement mortar. Introducing appropriate air bubbles into the mortar improves the construction performance of the mortar due to the "ball effect" of the air bubbles. At the same time, the introduction of air bubbles increases the output rate of the mortar. Of course, the amount of air-entrainment needs to be controlled. Too much air-entrainment will have a negative impact on the strength of the mortar. Hydroxyethyl methyl cellulose will delay the setting process of cement, thereby slowing down the setting and hardening process of cement, and prolonging the opening time of mortar accordingly, but this effect is not good for mortar in colder regions.

As a long-chain polymer substance, hydroxyethyl methylcellulose can improve the bonding performance with the substrate after being added to the cement system under the premise of fully maintaining the moisture in the slurry.