MST® China Dissolution method of HPMC
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What are the dissolution methods of HPMC?
Hot water MST® dissolution method of HPMC:
Since HPMC is not dissolved in hot water, HPMC can be uniformly dispersed in hot water at the initial stage, and then quickly dissolve during cooling. The hot water MST® dissolution method of HPMC can also be divided into the following two dissolution method of HPMC.
1) Put the required amount of hot water in the container and heat it to about 70°C. Gradually add hydroxypropyl methyl cellulose with slow stirring, start HPMC floating on the surface of the water, and then gradually form a slurry, and cool the slurry with stirring.
2). Add 1/3 or 2/3 of the required amount of water into the container and heat it to 70°C. According to the method of 1), disperse HPMC to prepare hot water slurry; then add the remaining amount of cold water to hot water In the slurry, cool the mixture after stirring. To
Powder mixing and dissolving method:
Mix HPMC powder with a large amount of other powdery material ingredients with a blender, and then add water to dissolve, then HPMC can be dissolved at this time without clumping and agglomerating, because each tiny corner has only a little bit HPMC powder will dissolve in water immediately.
The hot water MST® dissolution method of HPMC is generally used in the laboratory, and the putty powder and mortar manufacturers generally use the powder mixing dissolution method of HPMC. This dissolution method of HPMC is simple, convenient and suitable for mass operations.
Hydroxypropyl methyl cellulose (HPMC) is used as a thickener and water retaining agent in putty powder mortar.