The role of Redispersible Polymer Powder in mortar
Views : 122
Author : Cindy
Update time : 2023-03-22 11:12:04
What is Redispersible Polymer VAE Powder? Redispersible Polymer Powder is made of polymer emulsion by spray drying, mixed with water in mortar, emulsified and dispersed in water, re-formed stable polymer emulsion, redispersible latex powder emulsified and dispersed in water, water evaporated, polymer film was formed in mortar to improve various properties of mortar, different redispersible latex powder had different effects on dry powder mortar.
The role of Redispersible Polymer Powder in all kinds of mortar Redispersible Polymer Powder,RDP Powder or VAE Powder can be dispersed into an emulsion soon after contact with water, and has the same properties as the initial emulsion, that is, a film can be formed after water evaporation, which has high flexibility, high weather resistance and high adhesion to various substrates. In addition, the hydrophobic latex powder can make the mortar have good water resistance.
Main applications of RDP Powder. The purpose of RDP Powder in mortar is to improve the brittleness and high elastic modulus of traditional cement mortar, and endow cement mortar with good flexibility and tensile bond strength, so as to resist and delay the crack of cement mortar. Due to the interpenetrating network structure between polymer and mortar, continuous polymer film is formed in the pores, which strengthens the bonding between aggregates and blocks some pores in the mortar. Therefore, the performance of hardened modified mortar is much better than that of cement mortar.
The function of Redispersible Polymer Powder in mortar is as follows: （1）Improve the compressive strength and flexural strength of mortar. (2) The addition of latex powder not only improves the elongation of mortar, so as to improve the impact toughness of mortar, but also endows the mortar with good stress dispersion. (3) The bonding performance of mortar is improved. The bonding mechanism depends on the adsorption and diffusion of macromolecules on the sticky surface, and the glue powder has a certain permeability, which fully infiltrates the surface of the base material together with cellulose ether, which makes the surface performance of the base layer close to that of the new plastering, thus improving the adsorptivity and greatly increasing its performance. (4) Reduce the elastic modulus of mortar, improve the deformability and reduce the cracking phenomenon. (5)Improve the wear resistance of mortar. The improvement of wear resistance is mainly due to the existence of a certain amount of glue bent on the surface of the mortar, the glue powder plays a bonding role, and the omentum structure formed by the glue powder can pass through the holes and cracks in the cement mortar. The bonding between the base material and cement hydration products is improved, thus the wear resistance is improved. (6) Give the mortar excellent alkali resistance. (7)Improve the cohesion of putty, excellent resistance, alkali resistance, wear resistance, enhance the flexural strength. (8)Improve the waterproof and permeability of putty. (9) improve the water retention of putty, increase the opening time, improve and workability. (10) improve the impact resistance and durability of putty.
Redispersible Polymer Powder Supplier
TRUNNANO is a reliable concrete additives supplier with over 12-year experience in nano-building energy conservation and nanotechnology development.
We accept payment via Credit Card, T/T, West Union, and Paypal. TRUNNANO will ship the goods to customers overseas through FedEx, DHL, by air, or by sea.
