What is the role of hydroxypropyl methylcellulose in building materials?

1. The high water retention of construction mortar and plastering mortar can fully hydrate the cement and significantly improve the bond strength of the mortar. At the same time, hydroxypropyl methylcellulose can appropriately increase the tensile strength and shear strength, greatly improve the construction effect and improve work efficiency.

2. Water-resistant putty In the putty, hydroxypropyl methylcellulose mainly plays the role of water retention, adhesion and lubrication, so as to avoid cracking and dehydration caused by excessive water loss. At the same time, hydroxypropyl methylcellulose can strengthen the putty Excellent adhesion and reduce sagging to ensure smooth construction.

3. In the stucco plaster series, hydroxypropyl methylcellulose mainly plays the role of water retention, thickening, lubrication, etc., and has a certain retarding effect. Hydroxypropyl methylcellulose solves the hollowing in the construction process and the initial strength Insufficient problems may also extend working hours.

4. The hydroxypropyl methylcellulose in the external wall insulation mortar mainly plays a bonding role and improves the strength of the material. Mortar is easier to cover, improves work efficiency, and has anti-sag effect and effect. The water retention properties of hydroxypropyl methylcellulose can prolong the working time of mortar, improve shrinkage and crack resistance, improve surface quality, and increase bond strength.

5. The higher water retention of the tile adhesive eliminates the need for pre-soaking or wetting the tile and substrate, thus greatly improving the bond strength. The slurry has a long construction time, is fine and uniform, easy to construct, and has good anti-moisture property.

6. In the latex paint industry, hydroxypropyl methylcellulose can be used as a film-forming agent, thickener, emulsifier and stabilizer to make the film have good abrasion resistance, leveling and adhesion. The pH used to improve the surface tension is qualitative, and the miscibility with organic solvents is also good, and the high water retention performance makes it have good smoothness.