Redispersible Polymer Powder (VAE-RDP)
As a Polymer Powder Supplier, we are equipped to provide you with top-quality redispersible latex powders to meet your specific application needs.
Dispersible polymer powders, whether homo- or copolymer dispersions that have been spray-dried to achieve free-flowing and storable characteristics, play a pivotal role in enhancing various construction materials. These powders, when incorporated into cement and gypsum mortar, can significantly elevate their properties, ensuring improved performance.
Moreover, their impact goes beyond cement and gypsum mortar. They possess the capability to elevate the attributes of other construction materials like tile adhesives, fillers, and wallpaper adhesives. Irrespective of their addition timing, dispersible polymer powders stand as indispensable aids within the construction industry and the realm of building materials.
The process of creating dispersible polymer powders involves suspending polymer particles (homo- or copolymers) in water, followed by spray-drying. This yields spherical, powder-like agglomerates with diameters ranging from 80 to 100 μm.
Subsequently, mineral anticaking agents are introduced to produce dry, free-flowing, storable polymer powders, which are then stored in bags or silos. During the production of cement or gypsum mortar, these dispersible polymer powders are introduced to the mixing water and stirred until they disperse on their own. This leads to the disintegration of agglomerates into their smaller, original molecules.
Derived from spray-dried polymer dispersions, redispersible polymer powders, when exposed to water, disintegrate into granules, releasing the particles present in the original dispersions. Importantly, this process doesn't compromise the inherent properties of the polymers.
● Enhanced Dry Strength, Durability, and Lifespan
● Improved Mixture Stability
● Reduced Water Demand Rate and Bleeding
● Uniform Distribution of Air Pores Throughout the Volume
● Increased Impact Bending, Abrasion, and Flexural Strength
● Resistance to Temperature Fluctuations
● Minimized Shrinkage
● Heightened Adhesion and Cohesion
● Improved Stress Cracking Resistance
● Imparts High Final Strength
● Enhanced Water Retention
● Ensures Property Stability Across Different Cement Types
Redispersible polymer powders find extensive usage in construction projects, where their primary function is to facilitate the creation of robust and enduring adhesives and coatings for tiles, seals, conduits, and pipelines.
Redispersible polymer powders are integral to the production of polymer-modified dry mortars.
The benefits of polymer-modified mortar, cement, and concrete over their unmodified counterparts are widely recognized. Polymers, either in dispersion form (two-component systems) or powder form (single-component systems), are added during the production of gypsum mortar, concrete, or mineral cementitious materials like cement, followed by redispersion.
Redispersible polymer powders contribute to increased bending tensile strength, abrasion resistance, and compressive strength by reducing water content in cement. The polymer dispersion-induced decrease in water absorption enhances the resistance of mortar and cement to freeze-thaw cycles.
Furthermore, the addition of redispersible polymer powders to materials maximizes adhesive tensile strength, elasticity, and reduces porosity.
As a trusted supplier of specialty chemicals, we are committed to assisting you in identifying the optimal additives and raw materials to enhance your construction materials.
Beyond cement and gypsum mortar, dispersible polymer powders are invaluable for enhancing sealants, caulk, fillers, wallpaper adhesives, tile adhesives, and exterior wall coatings.
These powders notably enhance processability. Incorporating them before hydration reduces water requirements, simplifies handling, and extends working time. Post-curing, the material exhibits improved substrate bonding and flexibility. Cohesion among various construction elements is also enhanced, even without the addition of plasticizers.
Redispersible polymer powders offer exceptional adhesion to tile adhesives, even on challenging substrates like natural stone, wood, and plastic.
Count on us for innovative solutions and quality materials that optimize your construction endeavors.
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