Basic Info.
Formula
(C3h6o2)M(C4h6o2)N(C5h8o2)P
Appearance
Free Flowing White Powder
Usage
Oil Drilling Auxiliary Agent, Coating Auxiliary Agents, Surfactants, Dry Mixed Mortars
Color
Free Flowing White Powder
Application 1
Dry Mixed Mortars/Construction Mortar
Application 2
Tile Adhesive/Wall Putty Powder/Skim Coat
Other Names
Rdp/Vae/Redispersible Polymer Powder
Transport Package
PP Bag with PE Liner and Pallets
Specification
VAE Vinyl Ethylene Acetate Copolymer
Product Description
Redispersible Polymer powder/RDPRDP/ Redispersible Polymer powder is composed of a special polymers made of powder adhesive after spray drying. This powder is contact with water can be dispersed again in soon after forming emulsion, and with the nature of the same as the initial emulsion, namely the film can be formed after the moisture evaporation, the film has high flexibility, high resistance to weathering and on various substrate with high caking property. the powder environmental protection, energy saving, high quality, used for powder materials, dry-mix mortar is an indispensable functional additives.Redispersible polymer powder product is water soluble redispersible powder, divided into ethylene/vinylacetate copolymer, with polyvinyl alcohol as a protective colloid, spray drying white powder adhesive. This powder can be quickly dispersed into emulsion after contact with water, because of the redispersed polymer powder has high bonding capacity and unique properties, such as: water resistance, construction and heat insulation, therefore, their range of application is extremely wide. It can improve the performance of mortar, raise the strength of the mortar, improve the bonding strength of mortar with different base material, improve the mortar flexible and variable line, compressive strength, flexural strength, abrasion resistance and toughness, stick relay and water retention, constructability.
Redispersible Polymer powder/RDP(Vae)is mainly used in all kinds of dry-mix mortar, such as wall putty powder, ceramic tile adhesive, ceramic tile jointing agent, dry powder interface agent, exterior insulation mortar, self-leveling mortar, mending mortar, decorative mortar, waterproof mortar, etc...Technical data | Technical Date | HEARST RD 503M | HEARST RD 760F | HEARST RD 740H | HEARST RD 745W |
| Polymer Base | VAC/VAE | VAC/VAE | VAC/VAE | VAC/VAE/AC |
| Protective Colloid | Polyvinyl Alcohol | Polyvinyl Alcohol | Polyvinyl Alcohol | Polyvinyl Alcohol |
| Solid Content | ≥ 99.0% | ≥ 99.0% | ≥ 99.0% | ≥ 99.0% |
| Ash Content(900ºC) | 11%±2 | 11%±2 | 11%±2 | 11%±2 |
| Stacking Density (g/L) | 450-550 | 450-550 | 450-550 | 450-550 |
| Average Particle Size(um) | ~80 | ~80 | ~80 | ~80 |
| PH Value | 7.0-9.0 | 7.0-9.0 | 7.0-9.0 | 7.0-9.0 |
| Tg(ºC) | 3 | -8 | 15 | -11 |
| MFFT (Minimum film-forming temperature) (ºC) | 0 | 0 | 4 | 0 |
The addition of RDP/Redispersible Polymer Powder(redispersible latex powder) to mortar can significantly improve the bond strength with other materials, because the hydrophilic latex powder and the liquid phase of the cement suspension permeate into the pores and capillaries of the matrix, and the latex powder forms a film in the pores and capillaries and is firmly adsorbed on the surface of the matrix, thus ensuring a good bond strength between the cementing material and the matrix.
The optimization of latex powder on mortar performance is due to the fact that latex powder is a high polymer with polar groups. When latex powder is mixed with EPS particles, the non-polar chain segment of latex powder polymerization main chain will physically adsorb the non-polar surface of EPS. The polar groups in the polymer are oriented outward on the surface of EPS particles, making EPS particles change from hydrophobic to hydrophilic. Due to the modification effect of latex powder on the surface of EPS particles, the problem that EPS particles are easy to float when exposed to water and the stratification degree of mortar is large is solved. At this time, cement is added to mix, and the polar groups adsorbed on the surface of EPS particles interact with the cement particles and are closely combined, so that the workability of EPS insulation mortar is significantly improved. This is reflected in the EPS particles are easily wetted by cement slurry, and the binding force between the two is greatly improved.Rdp/Redispersible emulsion powder can be physically mixed with other mechanical adhesives (such as cement, hydrated lime, gypsum, etc.) as well as various aggregates, fillers and other additives (such as cellulose, starch ether, lignocellulose, hydrophobic agents, etc.) to make dry mixed mortar. When the dry mortar is mixed in water, the latex powder particles are dispersed into the water under the action of hydrophilic protective colloid and mechanical shear. For example, in the dry shotcrete repair mortar, the dry mortar with the redispersible emulsion powder and water are mixed at the end of the nozzle for about 0.1s and then sprayed onto the construction surface, which is sufficient for the redispersible emulsion powder to fully disperse and form a film. In the early mixing stage, the emulsion powder has begun to affect the rheology and constructability of the mortar. Due to the different characteristics of the emulsion powder itself and the modification, this effect is also different, some help the flow effect, and some increase the thixotropy effect. The mechanism of its influence comes from many aspects, including the influence of the affinity of the emulsion powder to water when dispersed, the influence of the different education of the emulsion powder after dispersion, the influence of the protective colloid, the influence of the cement and water, the influence of the gas content of the mortar and the influence of the bubble distribution, and the influence of its own additives and the interaction with other additives. Among them, the more common view is that the redispersible emulsion powder usually increases the gas content of the mortar, thus playing a lubricating role in the construction of the mortar, and the emulsion powder, especially when the protective colloid is dispersed, the increase in the affinity for water and the teaching consistency helps to improve the cohesion of the construction mortar, thereby improving the workability of the mortar. Subsequently, wet mortar containing emulsion powder dispersion is constructed on the working surface. With the reduction of water at three levels, the absorption of the base, the consumption of cement hydration reaction, and the evaporation of surface water into the air, the resin particles gradually approach and the interface gradually fuse with each other, and finally become a continuous polymer film. This process mainly occurs in the pores of the mortar and the surface of the solid.
With the increase of the content of redispersible emulsion powder/Rdp, the whole system develops in the direction of plastic. In the case of high emulsion powder content, the polymer phase in the cured mortar gradually exceeds the phase of the inorganic hydration product, the mortar has a qualitative change, and becomes an elastomer, while the hydration product of the cement becomes a "filler". The dispersed film of dispersible emulsion powder distributed on the interface plays another key role, that is, it enhances the adhesion of the contact material, which is good for some difficult surfaces, such as very low water absorption or non-water absorption surfaces (such as smooth concrete and cement material surface, steel plate, homogeneous brick, vitrified brick surface, etc.) and organic material surfaces (such as EPS board, plastic, etc.). It is especially important. Because the bonding of the mechanical adhesive to the material is achieved through the principle of mechanical embeddings, that is, the hydraulic slurry penetrates into the gap of other materials, gradually solidifies, and finally the mortar is attached to the surface of the material like the key embedded in the lock. For the above difficult surface, due to the inability to effectively penetrate into the material to form a good mechanical embeddings, The mortar with only inorganic adhesive is not effectively bonded to it, which is well proved by electron microscope observation. The bonding mechanism of polymers is different. Polymers are bonded to the surface of other materials by intermolecular force, and do not depend on the porosity of the surface (of course, the rough surface and the increased contact surface will improve the bonding force), which is more obvious in the case of organic substrates, and the electron microscope observation has also proved its superiority in the bonding force.Feature:Redispersible Polymer powder(Redispersible Latex powder) is the main raw material in production of internal, external wall putty, adhesive mortar and plaster mortar. the powder is specially applied as the agglutinant of basis materials on triple superphosphate, Talcum powder and white cement and so on. It can improve the adhesion properties water resistance, flexural strength and operability of the basis materials. Application range| Application | HEARST RD 503M | HEARST RD 760F | HEARST RD 740H | HEARST RD 745W |
| Adhesive Mortar for EIFS | ★★★ | ★ | ★★★ | ★ |
| Surface Mortar for EIFS | ★★ | ★★★ | ★ | ★★ |
| lnterior Wall Putty powder | ★★ | ★ | ★★★ | ★ |
| Exterior Wall Putty powder | ★★ | ★★★ | ★ | ★★ |
| Tile Adhesive Mortar | ★★ | ★★★ | ★★ | ★★ |
| Self-Leveling Compound | ★★ | ★ | ★★★ | ★ |
| Repair Mortar | ★★ | ★★★ | ★ | ★★ |
| Color Decoration Mortar | ★★ | ★★★ | ★ | ★★ |
| Tile grout | ★★ | ★★★ | ★ | ★★★ |
| Waterproof Mortar | ★ | ★★ | ★ | ★★★ |
| Tile adhesive mortar/Tile grouts/Tiles Binder/tile joint filler/ Caulk |
| Tile renovation interface agent |
| Skim coat (Putty)/wall putty/Dry putty powder |
| lnterior Wall Putty/Exterior Wall Putty |
| EIFS system mortar/coating mortar for EIFS(external insulation finish system) |
| EIFS system mortar/adhesive mortar for EIFS(external insulation finish system) |
| Thermal insulation mortar/Waterproof Mortar |
| decoration mortar/Color Decoration Mortar |
| dry mixed mortar/Construction Mortar/Repair Mortar |
| Surface modification cement/Cement Based Mortar |
| Powder latex paint |
| Thermal insulation building materials/ Thermal insulation mortar |
| Self-leveling mortar/Self-Leveling Compound |
Our laboratoryOur factoryShandong Hearst Building Material Co.,ltd. is a high-tech enterprise integrating scientific research and development, production and sales, and technical services. The company has fixed assets of more than 100 million yuan, the factory covers an area of 50000 square meters, and a construction area of 26000 square meters. The company has 106 employees, including 60 professional and technical personnel of various types, and 22 personnel with high and intermediate technical titles.Usage:The quantity of the powder is to different kinds of basis material. The substrate mixture should be stirred and dispersed fully to ensure the excellent stability of the products. However, high temperature generated from high-pressure and shear stress when mixed should be avoided.Packing &Storage:25kg/pp bags 600Kg Big Bag.It can be stored in a cool, dry place below 30°C and protected against humidity and pressing, since the goods is thermoplastic, storage time should not exceed six months. Self life: 180days
Address:
Room1908, Lvdi Building, Huaiyin Zone, Jinan, Shandong, China
Business Type:
Manufacturer/Factory, Trading Company
Business Range:
Chemicals, Construction & Decoration, Industrial Equipment & Components
Management System Certification:
ISO 9001
Company Introduction:
Shandong Hearst Building Material Co., Ltd is located in Yucheng City, 40kms from Ji′nan Shandong. It is a national high-tech enterprise with research, development, production, sales and technical services. The company has a fixed assets over than 100 billion Yuan, and an area of 50, 000m2, with construction area 26, 000m2. The company currently has 106 employees, including 60 different kinds of technicians, and 22 of them with senior professional titles.
Relies on strong financial strength, the company imported full set industry-leading level production line and testing equipment from Germany, created the production base which matches the foreign advanced technology requirements, and established the Hearst new building materials research and development center. With annual output 22, 000MTS, Hearst has become one of the largest redispersible polymer powder manufacturer in China. The company not only has advanced technology, highly automated production equipment, but also has first grade testing equipment and professional experienced business personnel, which guarantees good and stable quality products and best technical suggestions to the clients.
The marketing center, which locates in the east of Jinan West Station and north of Huaiyin District Government, guarantees convenient communication and cooperation.
Main raw material emulsion from Wacker and Celanese, and other raw materials from well-known manufacturers guarantees the products′ quality.
Our company spirit: Pragmatic, fighting and responsible.
The Operation Philosophy: Integrity and win-win.
The survival of fundamental: New management, advanced technology, attentive service and excellent quality.
Warmly welcome to contact us for win-win cooperation!
