Performance and function of redispersible latex powder
Release time:
2020-12-08
The redispersible emulsion powder product is a water-soluble redispersible powder, which is a copolymer of ethylene and vinyl acetate, and polyvinyl alcohol is used as a protective colloid. Due to the high binding capacity and unique properties of redispersible latex powders, such as water resistance, workability and heat insulation, their application range is extremely wide. Re-dispersible latex powder is mainly used in: interior and exterior wall putty powder, tile adhesive, tile jointing agent, dry powder interface agent, exterior insulation mortar, self-leveling mortar, repair mortar, decorative mortar, waterproof mortar and other dry-mixed mortar. Redispersible latex powder is a green environmental protection, building energy saving, high quality multi-purpose powder building materials, is an essential and important functional additives for dry-mixed mortar. It can improve the performance of mortar, improve the strength of mortar, improve the bonding strength of mortar and various substrates, improve the flexibility and variability of mortar, compressive strength, flexural strength, wear resistance, toughness, adhesion and water retention capacity, constructability. In addition, the hydrophobic latex powder can make the mortar has good water resistance.
The redispersible emulsion powder product is a water-soluble redispersible powder, which is a copolymer of ethylene and vinyl acetate, and polyvinyl alcohol is used as a protective colloid. Due to the high binding capacity and unique properties of redispersible latex powders, such as water resistance, workability and heat insulation, their application range is extremely wide. Re-dispersible latex powder is mainly used in: interior and exterior wall putty powder, tile adhesive, tile jointing agent, dry powder interface agent, exterior insulation mortar, self-leveling mortar, repair mortar, decorative mortar, waterproof mortar and other dry-mixed mortar. Redispersible latex powder is a green environmental protection, building energy saving, high quality multi-purpose powder building materials, is an essential and important functional additives for dry-mixed mortar. It can improve the performance of mortar, improve the strength of mortar, improve the bonding strength of mortar and various substrates, improve the flexibility and variability of mortar, compressive strength, flexural strength, wear resistance, toughness, adhesion and water retention capacity, constructability. In addition, the hydrophobic latex powder can make the mortar has good water resistance.
the role of redispersible latex powder:
1. The redispersible latex powder is dispersed into a film and used as a second adhesive to play a reinforcing role;
2, the protective colloid is absorbed by the mortar system (after the film will not be destroyed by water, or "secondary dispersion";
3. The film-forming polymer resin is distributed as a reinforcing material in the whole mortar system, thereby increasing the cohesion of the mortar; the redispersible latex powder is a kind of special emulsion (high molecular polymer) after spray drying The powder binder is made. This powder can be quickly re-dispersed after contact with water to form an emulsion, and has the same properties as the initial emulsion, that is, after evaporation of water can form a film, this film has high flexibility, high weather resistance and high adhesion to various substrates.
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