The Application of HPMC in Dry Mortar

HPMC is widely used in dry mix mortar products. The amount of cellulose ether, such as HPMC in dry mortar, added is very low, but it can significantly improve the performance of mortar and is an important additive that affects the construction performance of mortar. Cellulose ethers are rheology modifiers used to adjust the rheological properties of mortar. Construction grade HPMC has more application.

1. WHAT IS HYDROXY PROPYL METHYL CELLULOSE (HPMC)?

Hydroxypropyl methylcellulose (also called HPMC or Hypromellose) is a water-soluble, non-ionic cellulose ether polymer. It refers to a cellulose ether family whose hydroxyl groups have been substituted by one or more of the polymeric ring’s three hydroxyl groups.

2. HPMC PROPERTIES

1. HPMC is hydrophilic i.e. they are water-soluble. They are easily dissolved in water.

2. HPMC is biodegradable.

3. It is a biocompatible polymer with various applications in dyes and paints, cosmetics, adhesives, agriculture, and textile production.

4. Non-aqueous solvents can be used in mixing HPMC because it is also soluble in polar organic solvents.

5. After heating, it forms a gel with a gelatin temperature of 75–90℃.

6. It is white or pale white cellulose powder or particles.

7. Its solution is stable at room temperature.