vae redispersible powder-Application of redispersible latex powder in building materials
vae redispersible powder-Application of redispersible latex powder in building materials
The redispersible latex powder is dispersed and formed into a mold and acts as a second adhesive to enhance the adhesion; the protective colloid is absorbed by the mortar system (it will not be destroyed after the mold is formed. Or twice dispersed); the molded polymer resin As a reinforcing material distributed in the entire mortar system, thereby increasing the cohesion of the mortar.
What are the functions of redispersible latex powder in wet mortar?
Answer: Improve construction performance; improve fluidity; increase thixotropy and sag resistance; improve cohesion; extend open time; enhance water retention;
What does the redispersible latex powder do after the mortar is cured?
Answer: increase tensile strength; increase bending strength; reduce elastic modulus; increase deformability,material compactness,wear resistance,cohesive strength; reduce carbonization depth; reduce material water absorption; make material It has excellent water repellency (adding water repellent rubber powder).
What are the effects of redispersible latex powder in different dry mortar products?
01 Tile Adhesive
①The effect on fresh mortar
A. Extend the working time and adjustable time;
B. Improve water retention performance to ensure the splash of cement;
C. Improve sag resistance (special modified rubber powder)
D. Improve workability (easy to construct on the substrate, easy to press the tiles into the adhesive).
②The effect on hardened mortar
A. It has good adhesion to various substrates, including concrete, plastering, wood, old ceramic tiles, and PVC;
B. It has good adaptability under various climatic conditions.
02 External wall insulation system
①The effect on fresh mortar
A. Extend the working time;
B. Improve water retention performance to ensure the hydration of cement;
C. Improve workability.
②The effect on hardened mortar
A. Good adhesion to polystyrene board and other substrates;
B. Excellent flexibility and impact resistance;
C. Excellent water vapor permeability;
D. Good hydrophobicity;
E. Good weather resistance.
03 Self-leveling
①The effect on fresh mortar
A. Assist in improving liquidity;
B. Improve cohesion and reduce delamination;
C. Reduce bubble generation;
D. Improve surface smoothness;
E. Avoid early cracking.
②The effect on hardened mortar
A. Improve self-leveling crack resistance;
B. Improve the self-leveling bending strength;
C. Significantly improve the wear resistance of self-leveling;
D. Significantly increase the self-leveling bond strength.
04 Putty
①The effect on fresh mortar
A. Improve construction;
B. Add additional water retention to improve hydration;
C. Increase and tradeability;
D. Avoid early cracking.
②The effect on hardened mortar
A. Reduce the elastic modulus of mortar and increase the matching to the base layer;
B. Increase flexibility and resistance to cracking;
C. Improve powder resistance;
D. Hydrophobic or reduced water absorption;
E. Increase the adhesion to the base layer.
05 Waterproof mortar
①The effect on fresh mortar:
A. Improve construction
B. Add additional water retention and improve cement hydration;
C. Increase and tradeability;
②The effect on hardened mortar:
A. Reduce the elastic modulus of the mortar and enhance the matching to the base layer;
B. Increase flexibility, resistance to cracking or bridging ability;
C. Improve the density of mortar;
D. Hydrophobicity;
E. Increase adhesion.
As a building material additive, redispersible latex powder plays an important role in modern architecture.