30000-40000cps

MHEC proves to be a valuable cellulose derivative, providing excellent performance and ease of use in various applications, particularly in dry mix mortars. Its properties, such as water retention, viscosity stability, anti-sagging effect, and high early strength, contribute to improved performance and enhanced workability in construction and other industries.

In recent studies we have investigated the water retention behavior of hydroxyethyl cellulose (HEC) and carboxymethyl hydroxyethyl cellulose (CMHEC) in oil well cement, respectively. We found that the working mechanism of HEC relies on a dual effect, namely its enormous intramolecular water sorption (binding) capacity and a concentration dependent formation of hydrocolloidal associated polymer networks [23]. Contrary to this, the working mechanism of CMHEC changes with dosage. At low dosages (up to ~ 0.3% by weight of cement), adsorption presents the predominant mode of action, whereas above a certain threshold concentration (the “overlapping” concentration), formation of associated polymer networks is responsible for its effectiveness [24].