ODM & OEM 18+years
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Building grade HPMC used in the construction industry
●Solubility: HPMC is soluble in water and some organic solvents, even in cold water. The maximumconcentration is determined by viscosity, with solubility increasing as the viscosity decreases.
●Salt resistance: HPMC is a non-ionic cellulose ether and exhibits stability in aqueous solutionscontaining metal salts or organic electrolytes. However, excessive addition of electrolytes cancause coagulation and sedimentation.
●Surface activity: The aqueous solution of HPMC displays surface activity, allowing it to function asa colloidal protective agent, emulsifier, and dispersant.
●Thermal gel: Upon heating, the aqueous solution of HPMC becomes opaque, gels, and forms aprecipitate. However, upon cooling, it reverts back to its original solution state. The gel andprecipitation temperature depend on the presence of lubricants, suspending agents, protectivecolloids, emulsifiers, and other factors.
●Mildew resistance: HPMC exhibits good mildew resistance and maintains viscosity stability duringlong-term storage.
pH stability: The viscosity of HPMC aqueous solution remains relatively unaffected by acid oralkali, demonstrating stability in the pH range of 3.0 to 11.0.
●Shape retention: The addition of highly concentrated HPMC aqueous solution enhances theviscoelastic properties and improves the shape retention of extruded ceramic products.
●Water retention: HPMC for construction functions as an efficient water retention agent due to itsexcellent hydrophilicity and high viscosity in aqueous solutions.
In addition to the above properties, HPMC also serves as a thickener, film-forming agent, adhesive,lubricant, suspending agent, protective colloid, and emulsifier.
