mortar additive hpmcMay 11th 2023
The Role of Redispersible Polymer Powder in Mortar is Mainly the Following Aspects
1, Improve the compressive strength and flexural strength of mortar;
2, The addition of latex powder increases the elongation of the mortar, thereby improving the impact toughness of the mortar, and also imparts a good stress dispersion effect to the mortar;
3, Improve the bonding performance of the mortar. The bonding mechanism relies on the adsorption and diffusion of macromolecules on the sticky surface. At the same time, the polymer powder has a certain degree of permeability. Together with cellulose ether, it can fully infiltrate the surface of the base material, so that the base layer and the new plaster have a surface performance close to that of the new plaster, thereby improving adsorbability, and greatly increases its performance.
4, Reduce the elastic modulus of the mortar, improve the deformability, and reduce the cracking phenomenon;
5, Improve the abrasion resistance of the mortar. The improvement of abrasion resistance is mainly due to the presence of a certain amount of glue on the surface of the mortar. Handow chemicals, the redispersible powder plays a binding role, and the omentum structure formed by the polymer powder can pass through the holes in the cement mortar, rift. Improve the bonding of the base material and the cement hydration product, thereby improving the wear resistance;
6, Give the mortar excellent alkali resistance.