Redispersible Polymer Powder

Description

The redispersible polymer powder (general type) is a powder adhesive made of a special polymer by spray drying. The powder can be dispersed again soon after contacting with water to form an emulsion, and its properties are the same as the initial emulsion, i.e. the film can be formed after the water evaporates, and the film has high flexibility, high weather ability and weather resistance. It has high caking properties on various substrates. The powder is environmentally friendly, energy-saving, good quality, used in powder materials, and is an indispensable functional additive for dry-mixed mortar. It improves the performance of mortar, increases the strength of mortar, improves the bond strength of mortar and different substrates, and improves the flexural line, compressive strength, flexural strength, abrasion resistance and toughness of mortar.

The redispersible polymer powder is mainly used in various dry-mixed mortars, such as wall putty powder, tile adhesive, tile hooking agent, dry powder interface agent, exterior wall insulation mortar, self-leveling mortar, repair mortar, decorative mortar, waterproof mortar, etc.

Characteristics

The redispersible polymer powder (redispersible emulsion powder) is the main raw material for the production of interior and exterior wall putty, adhesive mortar and plastering mortar. The powder is specially used as a gelling agent for base materials such as heavy calcium superphosphate, talcum powder and white cement. It can improve the water resistance, bending strength and workable bonding properties of base materials.

Usage

The amount of redispersible polymer powder is based on different kinds of substrates. The substrate mixture should be well mixed and dispersed to ensure excellent stability of the product. However, high temperatures from high pressure and shear stress during mixing should be avoided.

Caution: Keep in a cool and dry place. Please use within the warranty period. To avoid deterioration due to absorption of environmental moisture, try to use once after opening the bag.

Advantages of Redispersible Emulsion Powder for the Construction Industry

Redispersible emulsion powder is mainly used in dry-mixed mortar in the construction industry and is an important additive for dry-mixed mortar.

Redispersible emulsion powder has obvious effects in dry-mixed mortar. It can improve the strength and bonding force, elastic bending strength and fracture strength of the material. It can also improve the frost resistance, weather resistance, durability and wear resistance of the material. As well as enhancing hydrophobicity, reducing water absorption, improving construction properties and reducing shrinkage of the material. The powder can effectively prevent cracking.

1、Improve bonding strength and bonding force.

It is necessary to add re-dispersible emulsion powder in dry mortar products. It can obviously improve the bonding strength and bonding force of the material, which is due to the good bonding strength formed by polymer particles to the matrix pores and capillary penetration of cement after hydration. In addition, due to the good bonding power of polymer resin, the powder has a good improving effect on the bonding power of dry mortar and substrate materials, especially to improve the poor bonding performance of inorganic binders such as cement and organic materials such as wood It can also be used to improve the adhesion of dry mortar to organic materials such as wood, fiber, PVC and EPS.

2、Improve the bending and tensile properties

In the rigid structure of cement mortar after hydration, the membrane elasticity and toughness of the polymer have a similar role as the active joint between cement mortar particles, which can withstand high deformation loads and reduce stress, while improving tension and bending resistance.

3、Improvement of impact resistance

Redispersible emulsion powder is a thermoplastic resin. The soft matter covering the surface of mortar particles can absorb tensile external impact without destruction, thus improving the impact resistance of mortar.

4、Improve hydrophobicity and reduce the water absorption rate

Adding redispersible polymer powder can improve the microstructure of cement mortar. The polymer forms an irreversible network in the hydration process of cement. Capillaries can prevent water absorption and permeability under the action of compact cement cementation. Thus, the penetration resistance is improved.

5、Improve wear resistance and durability

Adding re-dispersible polymer powder can enhance the compactness between cement mortar particles and polymer film. The enhanced binding force accordingly improves the shear stress-bearing capacity of mortar, reduces the wear rate, improves wear resistance and extends the service life of mortar.

6、Improve freeze-thaw stability and effectively prevent material cracking

The plasticity function possessed by thermoplastic resin of re-dispersible emulsion powder can overcome the swelling damage to cement mortar material caused by temperature difference change. It can overcome the defects of single cement mortar which is prone to cracking by dry shrinkage and deformation, and make the material flexible, so as to improve the long-term stability of the material.