Cement Based Tile Adhesive Mortars Additives Redispersible Polymer Powder Vae/RdpMay 26th 2023
HPMC manufacturer-The role of hydroxypropyl methylcellulose in dry-mixed ready-mixed mortar
In the process of dry-mixed ready-mixed mortar, the addition amount of hydroxypropyl methylcellulose is relatively low. Although the addition amount is low, which is also a major additive that affects the construction performance of mortar. Therefore, a scientific and reasonable choice of cellulose ethers of different brands, different viscosities, different particle sizes and added amounts has a greater impact on the improvement of the performance of dry-mixed ready-mixed mortars.
For the current building environment, the water retention performance of many masonry and plastering mortars is not ideal, and the water slurry will separate after a few minutes of standing, and the water retention is that of hydroxypropyl methyl cellulose ether. One of the main functions is that water-soluble cellulose ether plays a more important role in ready-mixed mortar. There are three main functions. The water retention performance of hydroxypropyl methylcellulose mainly depends on the water absorption of the base layer, the composition of the mortar, the thickness of the mortar layer, the water demand of the mortar, and the setting time of the coagulation material, and the self-retention of cellulose ether In other words, it mainly comes from the natural dissolution and dehydration of cellulose ether.
In the process of dry-mixing ready-mixed mortar, hydroxypropyl methylcellulose plays an important role. It can retain water, thicken, delay cement hydration power, and improve construction performance. Good water retention performance can make the cement hydration more comprehensive, can improve the wet adhesion performance of the wet mortar, thereby improving the bonding strength of the mortar, and at the same time can adjust the time. Adding hydroxypropyl methyl cellulose ether in the process of dry-mixing ready-mixed mortar can improve the construction performance of the mortar and improve the structural strength, so it is widely used in the application of mortar.