Redispersible Polymer Powder is a water-soluble redispersible powder, the main components of which are ethylene/vinyl acetate copolymer, tert-butyl vinyl acetate/vinyl acetate/ethylene, vinyl acetate/tert-butyl vinyl acetate copolymer, acrylic acid copolymer, etc. The polymer emulsion is generated by a specific polymerization reaction, with polyvinyl alcohol as a protective colloid, and is made by spray drying. The powder can be quickly redispersed into an emulsion when it comes into contact with water, and its polymer molecules significantly improve the comprehensive performance of building materials through molecular cross-linking.

The role of redispersible latex powder in building mortar

1.Enhance flexibility and crack resistance:

After the redispersible latex powder is redispersed with water, a continuous polymer film is formed in the pores and surface of the building mortar. The film absorbs external stress (such as temperature changes and foundation settlement) through elastic deformation, which improves the crack resistance of the building mortar by about 30% and significantly reduces the risk of cracks.

2.Improve bonding strength:

The polymer in the redispersible latex powder can penetrate into the micropores of the base material (such as walls and tiles), and a mechanical interlocking structure is formed after the water evaporates, which enhances the bonding between the building mortar and the base. Experimental data show that its bonding strength can reach more than 1.5MPa, effectively reducing the probability of tile falling off.

3.Optimize construction and workability:

Redispersible latex powder can improve the mixing uniformity of building mortar, reduce agglomeration, and make building mortar easier to apply and smooth on the surface. Construction efficiency is improved by about 20%, while reducing quality problems caused by improper operation.

As a high-performance additive, redispersible latex powder can comprehensively improve the mechanical properties, durability and construction convenience of building mortar, and extend the life of building materials. With the popularization of the concept of green building, its application in low-carbon and environmentally friendly building mortar will be further expanded to help the sustainable development of the construction industry.