What are the dissolution methods of hydroxypropyl methylcellulose (HPMC)?

HPMC powder is a key product of Shijiazhuang Cellulose Co., Ltd. It is a thickener and water-retaining agent for construction cement, ensuring excellent construction results. HPMC thickener is highly sought after worldwide.

What are the dissolution methods of hydroxypropyl methylcellulose (HPMC)?

Hot water dissolution method: Since HPMC does not dissolve in hot water, HPMC can be evenly dispersed in hot water at the initial stage and then quickly dissolved when cooled. Two typical methods are described as follows:

1)Place the required amount of hot water in a container and heat it to about 70°C. Gradually add hydroxypropyl methylcellulose while stirring slowly. Initially, HPMC will float on the surface of the water and then gradually form a slurry. Cool the slurry while stirring.

2)Add 1/3 or 2/3 of the required amount of water to a container and heat to 70°C. Disperse the HPMC according to step 1) to prepare a hot water slurry. Then, add the remaining amount of cold water to the hot water slurry, stir, and cool the mixture.

Powder mixing method: HPMC powder is mixed with a large amount of other powdered ingredients in a blender, thoroughly blended, and then dissolved in water. This allows the HPMC to dissolve without clumping. This is because even tiny amounts of HPMC powder in tiny corners dissolve quickly upon contact with water. This is the method used by putty powder and mortar manufacturers. [Hydroxypropyl methylcellulose (HPMC) is used as a thickener and water-retaining agent in putty powder and mortar.]