Why is hydroxypropyl methylcellulose added to mortar?

Hydroxypropyl methylcellulose is a non-ionic cellulose ether made from refined cotton, a natural polymer material, through a series of chemical processes. Mainly used in the construction industry: water-resistant putty powder, putty paste, tempered putty, coating glue, masonry plastering mortar, dry powder insulation mortar and other dry powder building materials.

Hydroxypropyl methylcellulose has good water retention effect, is easy to construct, and has a variety of viscosities to choose from, which can meet a variety of needs.

Hydroxypropyl methylcellulose ether with good performance can significantly improve the construction performance, pumping and spraying performance of mortar, and is an important additive in mortar.

1. Hydroxypropyl methylcellulose ether has excellent water retention properties and is widely used in various mortars, including masonry mortars, plastering mortars and ground leveling mortars, to improve the bleeding of mortars.

2. Hydroxypropyl methylcellulose ether has a significant thickening effect, improves the construction performance and workability of the mortar, changes the fluidity of the product, achieves the desired appearance, and increases the fullness and usage volume of the mortar.

3. Hydroxypropyl methylcellulose ether can improve the cohesion and operability of mortar, overcome common problems such as shelling and hollowing of ordinary mortar, reduce blanking, save materials, and reduce costs.

4. Hydroxypropyl methylcellulose ether has a certain retarding effect, which can ensure the operability time of the mortar and improve the plasticity and construction effect of the mortar.

5. Hydroxypropyl methylcellulose ether can introduce an appropriate amount of bubbles, which can greatly improve the frost resistance and durability of the mortar.

6. Cellulose ether combines physical and chemical effects to retain water and thicken. During the hydration process, it can produce substances that cause micro-expansion properties. Therefore, the mortar has a certain micro-expansion property and prevents the mortar from hydrating in the later stage. cracking caused by shrinkage and improves the service life of the building.