Soluble in water and some organic solvents can be dissolved in cold water, its maximum concentration is only determined by the viscosity, the solubility changes with the viscosity, the lower the viscosity, the greater the solubility.
Salt resistance: Hydroxypropyl methylcellulose for construction is a non-ionic cellulose ether and not a polyelectrolyte, so it is relatively stable in aqueous solution when metal salts or organic electrolytes exist, but excessive addition of electrolytes can cause condensation Glue and precipitation.
Surface activity: due to the surface active function of the aqueous solution, it can be used as a colloidal protective agent, emulsifier and dispersant.
When heated to a certain temperature, the aqueous solution of hydroxypropyl methylcellulose for thermal gel building becomes opaque, gels, and precipitates, but when it is continuously cooled, it returns to the original solution state, and this condensation occurs. The temperature of glue and precipitation mainly depends on their lubricants, suspending agents, protective colloids, emulsifiers, etc.
Product Features
Anti-mildew: It has relatively good anti-mildew ability and good viscosity stability during long-term storage.
PH stability: The viscosity of hydroxypropyl methylcellulose aqueous solution for construction is hardly affected by acid or alkali, and the pH value is relatively stable in the range of 3.0 to 11.0. Shape retention Because the highly concentrated aqueous solution of hydroxypropyl methylcellulose for construction has special viscoelastic properties compared with aqueous solutions of other polymers, its addition can improve the ability to maintain the shape of extruded ceramic products.
Water retention: hydroxypropyl methylcellulose for construction has the hydrophilicity and the high viscosity of its aqueous solution, which is a high-efficiency water retention agent.
Other properties: thickener, film-forming agent, binder, lubricant, suspending agent, protective colloid, emulsifier, etc.
Post time: Apr-23-2023