China Redispersible Polymer Powder Rdp Vae

Redispersible Polymer powder is produced by spray-drying special water-based emulsion, mostly based on vinyl acetate and ethylene. It dissolves in water easily and quickly forms emulsion.

Redispersible Polymer powder has obvious functions in the dry mixed mortar. It can improve strength and bonding force, the elastic bending strength and rupture strength of materials. It also improve the freezeproof property, weathering resistance, durability and wear resistance of the materials. As well as intensify the hydrophobicity and reduce the water absorption, improve the construction characteristic and reduce the contraction ratio of materials. The powder can effciently prevent cracking.

1,Improvement of the bonding strength and bonding force.

It is quite necessary to add Redispersible Polymer powder to the products of dry mortar. It can obviously improve the bonding strength and bonding force of materials, as it is because the matrix hole and capillary penetration of the polymer particle to cements form into fine bonding strength after hydrating of the cements. Furthermore, due to the fine boding force of polymer resin, the powder has better effects on improve of the boding force of dry mortar to the basis materials, especially improving the bad bonding properties of the inorganic bonder such as cement to the organic materials likes woods, fiber, PVC and EPS.

2,Improvement of the counter bending and tensile property

In the rigid structures after hydrating of the cement mortar, the film elasticity and tenacity of the polymer has the similar function of the mobile joint between the cement mortar particles, the it can bear high distortion load and reduce the stress, as well as improve the tension and resistance to bending.

3,Improvement of the impact resistance

Redispersible Polymer powder is the thermoplastic resin. The soft covered on the surface of mortar particles can absorb outside force impact that is tensile without damage, so as to improve the impact resistance of mortar.

4,Improvement of the hydrophobicity and reduction of the water absorption

Addition of the Redispersible Polymer powder can improve the microscopic structure of the cement mortar. The polymer forms into the irreversible network during the cement hydrating process. Capillary in the close cement gelation can hold up the water absorption and water penetration. so as to improve the penetration resistance capability.

5,Improvement of the wear resistance and durability

Addition of the Redispersible Polymer powder can intensify the dense grade between the cement mortar particles and polymer film. Strengthening of the boding force correspondingly improves the shearing stress-bearing capacity of the mortar, reduces the wear rate, improve the wear resistance, and prolongs the service life of the mortar.

6,Improvement of the freeze thawing stability and efficient prevention of the cracking of materials

The plasticity function possessed by the thermoplastic resin of Redispersible Polymer powder can overcome the flatulence damage for cement mortar materials brought by temperature difference changes. It can overcome the defects of dry shrinkage and distortion of single cement mortar that is easy to be cracked, and make the material flexible, so as to improve the long stability of materials.