Product Description
Specializing in the production of various types of hydroxypropyl methylcellulose (HPMC), the current production capacity and the type of cellulose can meet the different degrees of use in construction and daily chemical grades.
Fineness is an important performance index for testing the quality of HPMC:
The MC added to the dry powder mortar requires powder, low water content, and the fineness also requires 20% to 60% of the particle size to be less than 63um. Fineness will affect the solubility of HPMC.
The coarser MC is usually in the form of particles, which is easily dispersed and dissolved in water without agglomeration, but the dissolution rate is very slow, so it is not suitable for use in dry powder mortar.
In dry powder mortar, MC is dispersed between aggregate materials such as aggregates, fine fillers and cement. Only enough fine powder can avoid uneven mixing and agglomeration when mixing with water.
The higher the viscosity of HPMC, the better the water retention effect.
The higher the viscosity, the more viscous the wet mortar will be. During construction, it will appear as a sticky blade and a high adhesion to the substrate. But it is not helpful to increase the structural strength of the wet mortar itself. That is, during construction, the performance of sag resistance is not obvious. In contrast, some modified low-viscosity methyl cellulose ethers have excellent performance in improving the structural strength of wet mortar.
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