Redispersible latex powder is made from polymer emulsion by spray drying, mixed with water in cement mortar, emulsified and dispersed with water and regenerated stable polymer emulsion. After dispersing emulsion powder in water, emulsified and dispersed, water evaporates, polymer film is formed in mortar, and various properties of mortar are improved. Different redispersible latex powder is different from dry powder mortar. Effect.
What properties of mortar can be improved by redispersible latex powder?
1. Improve the impact resistance, performance and wear resistance of mortar
The mortar is filled with cement mortar pore cavity, the compactness and wear resistance of cement mortar are improved. Under the action of external force, it can cause relaxation without damage. Polymer paper can be stored in cement mortar management system.
2. Improve mortar construction adhesion
Polymer powder particles have wetting effect, which makes two components of cement mortar flow independently. In addition, rubber powder has the function of inducing gas.
Recommendation of excellent enterprises
3. Improve the bond compressive strength and bond strength of mortar
As an organic chemical adhesive, redispersible latex powder can produce high compressive strength and compressive strength on different plates. For cement mortar and organic chemical raw materials (stomach, extruded insulation foam board) and clean board surface bonding played a very important role. DEM raw materials and depilated polymer powder are widely used in all cement mortar management systems to improve the cohesion of cement mortar.
4. improve mortar aging resistance, freeze thaw cycle, prevent cement mortar cracking
Redispersible latex powder belongs to thermoplastic resin, which has good flexibility. It can make mortar damage to the external thermal and cold environment, and reasonably avoid mortar cracks due to the change of temperature difference.
5. Increase the hydrophobicity of mortar and reduce the moisture content
The re dispersible latex powder can be demulsified in the cement mortar cavity and surface layer, and the polymer paper is not easy to be re dispersed after water treatment, thus blocking the water invasion and improving the impermeability. This kind of water-resistant glass wool has better effect because of its unique ability of dispersing natural latex powder.
Main application of redispersible latex powder
Internal and external wall putty powder, tile adhesive, tile pointing agent, dry powder interface agent, external wall insulation mortar, self leveling mortar, repair mortar, decoration mortar, waterproof mortar, external insulation dry mixed mortar. In order to improve the brittleness, high modulus of elasticity and other weaknesses of traditional cement mortar, the mortar is endowed with good flexibility and tensile bond strength to resist and delay the generation of cement mortar cracks. Because polymer and mortar form an interpenetrating network structure, a continuous polymer film is formed in the pores, which strengthens the bond between aggregates and blocks the sand Some of the pores in the slurry, so the performance of the hardened modified mortar is much better than that of the cement mortar.
Product properties of redispersible latex powder
1. Improve the bending strength and flexural strength of mortar
The polymer film formed by zhaojiake redispersible latex powder has good flexibility. The membrane is formed on the gap and surface of cement mortar particles to form a flexible connection. It makes the brittle and hard cement mortar elastic. The mortar with redispersible latex powder is several times higher than the ordinary mortar in tensile and flexural resistance.
2. Improve the bonding strength and cohesion of mortar
As an organic binder, redispersible latex powder can form high tensile strength and adhesive strength on different substrates. It plays an important role in bonding force between mortar and organic material (EPS, extruded foam board) and smooth surface substrate. The film-forming polymer powder is distributed in the whole mortar system as reinforcement material, increasing the cohesion of mortar.
3. Improve the impact resistance, durability and wear resistance of mortar
The mortar cavity is filled with rubber powder particles, the compactness of mortar is increased, and the wear resistance is improved. Under the action of external force, it will relax without being destroyed. The polymer film can exist permanently in the mortar system.
4. Improve the weather resistance and freeze-thaw resistance of mortar to prevent mortar cracking
Redispersible latex powder belongs to thermoplastic resin, which has good flexibility. It can make mortar cope with the change of external cold and hot environment, and effectively prevent mortar from cracking due to the change of temperature difference.
5. Improve the hydrophobicity of mortar and reduce the water absorption
The re dispersible latex powder can form film in the mortar cavity and surface, and the polymer film will not be re dispersed when encountering water, which prevents the invasion of water and improves the impermeability. Special redispersible latex powder with hydrophobic effect has better hydrophobic effect.
6. Improve the workability of mortar construction
There is lubrication effect between the particles of polymer rubber powder, which makes the components of mortar flow independently. At the same time, the rubber powder has induction effect on the air, gives the compressibility of mortar, and improves the construction and workability of mortar.
Recommendation of excellent enterprises
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