Ethylene Vinyl Acetate Redispersible Polymer Powder Industrial Grade

Concrete Mortar Admixture Vinyl Acetate-Ethylene (Vae) Redispersible Polymer Powder

JF REDISPERSIBLE POLYMER POWDER Product Introduce:

CAS: 24937-78-8

Redispersible Polymer Powder (RDP) is spray dried redispersible polymer powder,also named as Redispersible emulsion Powder or latex powder, designed for the construction industry to enhance the properties of dry mortar blends, able to Redispersible in water and react with hydrate product of cement / gypsum and stuffing, form composite membrane with good mechanics intensity.
It improves the important application properties of dry mortars, like longer opening time, better adhesion with difficult substrates, lower water consumption, better abrasion and impact resistance.

Application Of Redispersible Polymer Powder:

1. Dry powder putty: improve the bonding strength, adhesion to the base layer, continuous film formation, dry powder putty is not affected by weather and humidity, making the product more stable, strong alkali resistance, and excellent waterproof performance.
2. Tile adhesive: It has extremely strong adhesion to the wall and bonding strength, which is necessary for high-grade tiles.
3. Tile refurbishment interface agent: good bonding strength, strong adhesion to the base surface of tiles and other surfaces that are smooth and non-absorbent.
4. External wall insulation: bonding mortar, plastering mortar and other construction mortars, especially suitable for flexible construction mortars.

The Role Of Redispersible Polymer Powder In Mortar:

1. Improve the compressive strength and flexural strength of mortar.
2. The addition of latex powder increases the elongation of mortar, thus improving the impact toughness of mortar, but also gives a good stress dispersion effect of mortar.

3. Improve the bonding performance of mortar. The bonding mechanism depends on the adsorption and diffusion of macromolecules on the bonding surface. At the same time, the rubber powder has a certain air permeability. Together with cellulose ether, it can fully penetrate the substrate surface, so that the substrate layer and the surface performance of the new gypsum close, thus improving the adsorption capacity, greatly improve its performance.

4. Reduce the elastic modulus of mortar, improve the deformation ability, reduce cracking phenomenon.
5. Improve the wear resistance of mortar. The improvement of wear resistance is mainly due to the presence of a certain amount of glue on the surface of mortar. Rubber powder acts as a bond. The omental structure formed by rubber powder can pass through holes and cracks in cement mortar. Improve the bond between the base material and cement hydration products, thereby increasing wear resistance.

6. The mortar has excellent alkali resistance.

Composition Of Redispersible Polymer Powder:

a. Polymer resin: Located in the core part of the rubber powder particles, it is also the main component of the redispersible latex powder.
b. Additives (internal): together with the resin, it plays the role of modifying the resin.
c. Additives (external): In order to further expand the performance of the redispersible latex powder, another material is added.
d. Protective colloid: A layer of hydrophilic material wrapped on the surface of redispersible latex powder particles. Most of the protective colloids of redispersible latex powder are polyvinyl alcohol.
e. Anti-caking agent: fine mineral filler, mainly used to prevent rubber powder from agglomerating during storage and transportation and to facilitate the flow of rubber powder (pour out from paper bags or tankers).