Redispersible Latex Powder By Sheng Da (China) New Materials Co.

Re-dispersible polymer powder(VAE)- - - is a free-flowing ethylene-vinyl acetate copolymer white powder formed by spray-drying EVA emulsion, easily re-emulsified and dispersed in water to form a stable emulsion.In addition to the original superior performance of EVA porous liquid, and because it is a free-flowing powder, it has excellent convenience and reliability in handling and storage.

Composition:
1.Polymer resin: located in the core part of the powder particles, is also the main component of the role of re-dispersible polymer powder, for example, polyvinyl acetate/ethylene resin.
2.Additives: together with the resin to play the role of the modified resin, such as reducing the temperature of the resin film forming plasticizer(usually vinyl acetate/ethylene copolymer resin does not need to add a plasticizer).Not every powder has an additive component.
3.Protective colloid: a layer of hydrophilic material in the surface of the redispersible polymer powder particles wrapped Lee, the vast majority of redispersible polymer powder protective colloid is polyvinyl alcohol.
4.For additives (outside): for further expansion of the performance of the dispersible polymer powder and another added material.Such as adding superplasticizer in some of the Fluidic powder.As with additives, not every dispersible polymer powder contains such additives.
5.Anti-caking agent: fine mineral fillers, mainly used to prevent caking powder in the storage and transportation process and to facilitate the flow of powder(from a paper bag or tank dump out).
Redispersible milk powder has a high adhesion and unique properties, excellent mortar alkali resistance, thereby improving mortar adhesion, flexural strength, water resistance, plasticity, wear resistance and construction, the flexible crack mortar has more flexibility.
East Far redispersible latex powder has a very prominent bond strength, thereby improving the flexibility of the mortar and can have a longer opening time, it can be emulsified in the water after the water heat, the formation of polymer film in the mortar, improve the performance of mortar.
1.Improve the mortar impact resistance, durability, wear resistance: powder particles filled with mortar pore, mortar density increased, improved wear resistance. Under the action of external forces will produce slack without being damaged. Polymer film can be permanently present in the mortar system.
2.Improve the construction and ease of mortar: there is a lubricating effect between the polymer powder particles, so that the mortar component can flow alone, while the powder on the air induction effect, giving the second slurry compressibility, good construction and ease of mortar.
3.Improve the mortar bonding strength and cohesion: as an organic binder can be re-dispersible polymer powder after film formation, can form a high tensile strength and adhesive strength on different substrates. In the mortar and organic materials( EPS, extruded plastic foam board)and smooth surface adhesion of the substrate on the play a very important role. Film-forming polymer powder as a reinforcing material distributed throughout the mortar system, increasing the cohesion of the mortar.
4.Improve the weathering resistance of mortar, freeze-thaw resistance, prevent mortar cracking: redispersible latex powder belongs to the thermoplastic resin, has good flexibility, can make the mortar to cope with changes in the external hot and cold environment, effectively prevent the mortar due to changes in temperature and cracking.
5.Improve the water repellency of mortar, reduce water absorption: redispersible polymer powder in the mortar cavity and the surface of the film, the polymer film will not be two times after the water dispersion, prevent the invasion of water, improve the impermeability.Special re-dispersible polymer powder with hydrophobic effect, the hydrophobic effect is better.