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Two dissolution methods of HPMC Powder

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Two dissolution methods of HPMC

Powder mixing method: the HPMC powder and a large number of other powdery material ingredients, fully mixed with a blender, after adding water to dissolve, then the HPMC can be dissolved at this time, without agglomeration, because each tiny little corner, only a little HPMC powder, water will immediately dissolve.Putty powder and mortar manufacturers use this method.Hydroxypropyl methyl cellulose (HPMC) is used as thickening agent and water retaining agent in putty powder mortar.

Hot water solution method: because HPMC is not dissolved in hot water, so early HPMC can be evenly dispersed in hot water, and then quickly dissolve when cooling, two typical methods are described as follows:

1) Put the required amount of hot water in the container and heat it to about 70℃.In the slowly stirring gradually add hydroxypropyl methyl cellulose, start HPMC floating on the surface of the water, and then gradually form a slurry, cooling the slurry in the stirring.

2), add 1/3 or 2/3 of the required amount of water in the container, and heat to 70℃, according to the method of 1), disperse HPMC, prepare hot water slurry;The remaining amount of cold water is then added to the hot water slurry, stirring and cooling the mixture.


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