The different effects of HPMC, starch ether, and RDP in gypsum mortar
HPMC (Hydroxypropyl Methyl Cellulose) in gypsum mortar HPMC aqueous solution pH in the range of 2 to 12, very stable. Caustic soda and lime water do not have much effect on their performance, but alkali can accelerate its dissolution speed and slightly improve the viscosity. HPMC is an efficient water retention agent for dry mortar, […]