Redispersible latex powder
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Name Redispersible latex powder
Physical And Chemical Indicators
Specification
Physical And Chemical Properties
(1)Redispersible latex powder is easily soluble in water and easy to form emulsion
(2) Redispersible latex powder has strong cohesive force and good tensile force
(3) Redispersible latex powder can improve the processability, flexibility and impermeability of materials
(4) Redispersible latex powder can improve the cohesion of the mortar, increase the concentration and anti-sagging
(5) Redispersible latex powder can improve the flexibility of the mortar and extend the open time
Production Process
Ethylene-vinyl acetate rubber powder (VAE-RDP) is made of vinyl acetate/ethylene copolymer emulsion (EVA emulsion) modified by adding water-soluble protective colloid (polyvinyl alcohol usually PVA) and spray-dried, using water as the medium Can be re-formed into an emulsion, a powder with redispersibility.
Application Performance
(1) Improve bond strength: latex powder forms a film at the interface
(2) Improve cohesion: film formation on the pore wall and film formation at microcracks
(3) Improve the airtightness and waterproofness of the mortar: the capillary pore wall forms a film, the microcracks form a film, and the latex powder film is waterproof
(4) Improve the flexibility and deformability of the mortar: latex powder has a low elastic modulus to change the rigidity of the cement base, and the latex powder bridges the mortar to supplement micro-cracks
(5) Improve the workability of mortar: the ball effect of latex powder particles, the air-entraining effect of latex powder emulsion
(6) Impact on the mechanical properties of mortar: reduce compressive strength and elastic modulus; appropriately improve the tensile strength of mortar; appropriately increase the flexural strength of cement mortar
(7) In the mortar system, the performance of the mortar varies with the content of latex powder. The amount of cement has a great impact on the performance of the mortar. Appropriately increasing the amount of cement can increase the elastic modulus and water resistance of the latex powder film, but with the amount of cement The increase of the powder will reduce the deformability of the latex powder film. ØWhen the content of latex powder is high, the material is flexible and has strong resistance to deformation. This type of material can be used as waterproof mortar, flexible tile glue, anti-cracking plastering mortar, etc.; ØWhen the content of latex powder is low, the material is rigid and the bonding strength is high. Due to the molecular bond of the rubber powder, it can have good bonding strength on smooth or flexible base surfaces. It is used in tile glue, benzene Board bonding mortar; In addition, latex powder can increase the cohesion of the material and improve the wear resistance. The typical application is self-leveling mortar.
(8) Mechanism of action: It combines latex powder (features: low modulus of elasticity, large deformability, swelling and softening in water, sealing material, low compressive strength, high bonding strength, etc.) and cement materials (features: elastic modulus The advantages of high weight, low deformability, hydraulic materials, porous materials, high compressive strength, low bonding strength, etc.) have significantly improved the bonding performance and durability of the material. Tile adhesive is one of the typical applications. Film formation process: With the loss of water in the mortar (evaporation, substrate absorption, cement hydration), the latex powder particles are close to each other ØWhen the temperature is higher than the minimum film-forming temperature, a polymer film is gradually formed and interlaced with the cement hydrate, the mortar gains cohesive strength and bond strength growth, and finally improves the cement stone structure. To make the film-forming process of latex powder irreversible, it is necessary to consume the hydrophilic protective colloid of the redispersible rubber powder-polyvinyl alcohol. In alkaline systems, polyvinyl alcohol will be saponified by alkali, and this reaction is irreversible; in non-alkaline systems, polyvinyl alcohol will have residues, which will affect water resistance. Therefore, the alkaline environment (high pH value and ionic strength in the pore solution) of cement-based materials is an important factor in the coalescence of latex particles.
Use
Redispersible latex powder is widely used in external wall insulation systems, tile adhesives, joint fillers, self-leveling mortar, repair mortar, putty, decorative mortar, diatom mud, waterproof slurry, wear-resistant floor and other fields.
Packaging, Storage And Transportation
It can be packed in paper-plastic composite bag lined with polyethylene plastic bag, cardboard drum or plastic coated, etc. The net weight of each piece is 25KG. During storage and transportation, it should be protected from sun and rain, fire and moisture.
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VAE/RDP-YD
Name Redispersible latex powder
Model YD
Product Description
Yida redispersible latex powder (VAE/RDP) YD is a redispersible latex powder formed by spray drying of ethylene and vinyl acetate copolymer emulsion designed with flexible end groups. This product has good resolubility and good flexibility after film formation; it can effectively improve the sealing, impermeability, water resistance, frost resistance and weather resistance of the mortar.
Scope Of Application
YD is widely used in interface agents, caulking agents, thermal insulation mortar, flexible putty, gypsum-based products, tile adhesives
Performance
Recommended Dosage
The recommended dosage of this product is 3-20‰ of the system, and the dosage needs to be determined by experiment
Packaging And Storage
After the product is opened and used, it must be sealed in time; This product is thermoplastic, so it should be stored in a high temperature environment to avoid pressure, otherwise it will easily cause agglomeration; Sealed and stored in a cool and dry place at 0-40ºC, and the storage time should not exceed 24 months.
Technical Support
During the preparation of various formula systems for this product, the Yida technical team can provide technical consultation, technical tracking, and long-term optimization of the formula system.
VAE/RDP-YD
We have state-of-the-art tools. Our products are exported towards the USA, the UK and so on, enjoying a fantastic reputation amongst customers for OEM Manufacturer Re Acrylic Redispersible Polymer Powder for Tile Adhesive Additives Vae Emulsion Polymer Powder Rdp, When you are fascinated in our merchandise, you should sense cost-free to send us your inquiry. We sincerely hope to establish win-win company interactions along with you.
We have state-of-the-art tools. Our products are exported towards the USA, the UK and so on, enjoying a fantastic reputation amongst customers for China Redispersible Polymer Powder and Vae Redispersible Polymer Powder, In the future, we promise to keep offer the high quality and more cost-effective products, the more efficient after sales service to our all customers all over the world for the common development and the higher benefit.
Redispersible Polymer Powder (RDP)
Other names: Redispersible Emulsion Powder,RDP powder,VAE powder,Latex powder,dispersible polymer powder
Redispersible Polymer Powder (RDP) is a redispersible emulsion latex powder produced by spray-drying special water-based emulsion, mostly based on vinyl acetate and ethylene.
After spray drying, VAE emulsion is turned into a white powder which is a copolymer of ethyl and vinyl acetate. It is free-flowing and is easy to emulsify. When dispersed in water, it forms a stable emulsion. Possessing the typical characteristics of VAE emulsion, this free-flowing powder offers greater convenience in handling and storage. It can be used by mixing with other powder-like materials, such as cement, sand and other lightweight aggregate, and it can also be used as a binder in building materials and adhesives.
Redispersible Polymer Powder (RDP) dissolves in water easily and quickly forms emulsion.It improves the important application properties of dry mortars, longer opening time, better adhesion with difficult substrates, lower water consumption, better abrasion and impact resistance.
Protective colloid olyvinyl alcohol
Additives : Mineral anti-block agents
- Skim coat
- Tile adhesive
- Exterior wall insulation mortars
Key Properties:
RDP can improve adhesion, flexural strength in bending, abrasion resistance, deformability. It has good rheology and water retention, and can increase the sag resistance of tile adhesives, it can made up to tile adhesives with excellent non-slump properties and putty with good properties.
Special features:
RDP has no effect on rheological preperties and is a low-emissions,
General – purpose powder in the medium Tg range. It is eminently suitable for
formulating compounds of high ultimate strength.
Packing:
Packed in multi-ply paper bags with polyethylene inner layer, containing25 kgs; palletized & shrink wrapped.
20’FCL load 16 ton with pallets
20’FCL load 20 ton without pallets
Storage:
Store it in a cool, dry place below 30°C and protected against humidity and pressing, since the goods is thermoplastic, storage time should not exceed 6 months.
Safety notes:
The above data is in accordance with our knowledge, but don’t absolve the clients carefully checking it all immediately on receipt. To avoid the different formulation and different raw materials, please do more testing before using it.We have state-of-the-art tools. Our products are exported towards the USA, the UK and so on, enjoying a fantastic reputation amongst customers for OEM Manufacturer Re Acrylic Redispersible Polymer Powder for Tile Adhesive Additives Vae Emulsion Polymer Powder Rdp, When you are fascinated in our merchandise, you should sense cost-free to send us your inquiry. We sincerely hope to establish win-win company interactions along with you.
OEM Manufacturer China Redispersible Polymer Powder and Vae Redispersible Polymer Powder, In the future, we promise to keep offer the high quality and more cost-effective products, the more efficient after sales service to our all customers all over the world for the common development and the higher benefit.
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