Uses of Hydroxypropyl Methyl Cellulose (HPMC)

Hydroxypropyl methylcellulose is a common raw material in the building material chemical industry. In daily production, we can often hear its name. But many people don’t know its use. Today, I will explain to you the use of hydroxypropyl methylcellulose in different environments.

1. Construction mortar, plastering mortar

As a water-retaining agent and retarder of cement mortar, it makes the mortar pumpable, improves applicability and prolongs the operating time. The water-retaining performance of HPMC prevents the slurry from cracking due to drying too quickly after application, and enhances the strength after hardening.

2. Water-resistant putty

In the putty, cellulose ether mainly plays the role of water retention, bonding and lubrication, avoiding cracks and dehydration caused by excessive water loss, and at the same time enhances the adhesion of the putty, reduces the sagging phenomenon during construction, and makes the construction process smoother.

3. Paint plaster

In the gypsum series products, cellulose ether mainly plays the role of water retention, thickening, lubrication, etc., and has a certain retarding effect, which solves the problems of bulging and initial strength in the construction process, and can prolong the working time.

4. Interface agent

It is mainly used as a thickener, which can improve the tensile strength and shear strength, improve the surface coating, enhance the adhesion and bond strength.

5. External insulation mortar for exterior walls

In this material, cellulose ether mainly plays the role of bonding and increasing the strength, so that the sand will be easier to coat and improve work efficiency. At the same time, it has the effect of anti-sagging. Shrinkage and crack resistance, improved surface quality, increased bond strength.

6. Sealant, caulking agent

The addition of cellulose ether makes it have good edge bonding, low shrinkage and high wear resistance, which protects the base material from mechanical damage and avoids the impact of penetration on the entire building.

7. DC flat material

The stable cohesiveness of cellulose ether ensures good fluidity and self-leveling ability, and the control of water retention enables rapid solidification, reducing cracking and shrinkage.

8. Latex paint

In the paint industry, cellulose ether can be used as a film-forming agent, thickener, emulsifier and stabilizer, so that the film has good abrasion resistance, leveling property, adhesion, and the PH of improving surface tension is qualitative. , The miscibility with organic solvents is also good, and the high water retention performance makes it have good brushing and leveling properties.