Briefly describe the advantages of redispersible latex powder?
July 3, 2020
Redispersible latex powder is a powder adhesive made from polymer polymer emulsion after spray drying. It is the main additive of cement-based or gypsum-based dry powder ready-mixed mortar. It has good dispersibility, high flexibility, High weather resistance, the same chemical properties as the initial emulsion.
The addition of redispersible latex powder to the dry powder can improve the bonding performance and cohesion of the material, have internal plasticization, increase the elasticity and bending strength of the material, and improve the impact resistance and weather resistance of the material. Various properties of mortar are improved, and different redispersible latex powders have different effects on the performance of dry powder mortar. Therefore, the redispersible latex powder is widely used in construction fields such as exterior wall insulation, ceramic tile bonding, interface treatment, gypsum bonding, interior and exterior wall putty, etc.
We all know that redispersible latex powder is commonly used in construction as a binder. So, what are the advantages of redispersible latex powder that so many construction sites can't put it down?
1. The chemical properties are very important. In terms of water resistance, heat resistance and thermal insulation, it is not only in good agreement with some thermal insulation materials, but can even exceed them, so it is often used to bond some wall structures, adding its flexibility and Plasticity, I believe no construction site will be abandoned.
2. The redispersible latex powder is dispersed to form a film and play a reinforcing role as a second adhesive;
The protective colloid is absorbed by the mortar system (the film will not be destroyed by water, or "secondary dispersion");
The film-forming polymer resin is distributed as a reinforcing material throughout the mortar system, thereby increasing the cohesion of the mortar;