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Understanding HPMC

Construction and Building Materials

3. Temperature Control Temperature influences the solubility and viscosity of HPMC. Warmer temperatures can accelerate dispersion, but excessive heat can denature the polymer. Therefore, careful temperature management is essential during the dispersion process.

Applications

What is HPMC?

1. Thickening Agent HPMC is commonly used in paints, coatings, and construction materials to improve viscosity and texture.

When the dry mortar is added to the water and stirred, the rubber powder particles are dispersed into the water under the action of the hydrophilic protective colloid and mechanical shearing force. The time required for the dispersion of the normal dispersible polymer powder is very shot. For example, in the dry-sprayed concrete repair mortar, the dry mortar with Redispersible Polymer Powder and the water are sprayed only at the end of the nozzle for about 0.1s. To the construction surface, this is sufficient to fully disperse and film the redispersible powder.

Comparison of Hydroxyethyl Cellulose (HEC) and Hydroxypropyl Methylcellulose (HPMC)