(RDP)Re-dispersible Polymer Powder
Redispersible polymer powder products are water-soluble redispersible powders, which are powder adhesives made by spray drying of ethylene/ vinyl acetate/copolymers.
Composition
Including: polymerized resin, additive, protective colloid, anti-caking
Production process
It is mainly divided into two steps
First step: Production of polymer emulsion by emulsion polymerisation
Second step : Mixtures prepared from polymer emulsion spray drying to obtain polymer powders.
| Technical indicators | RDP | |
| Appearance | White or yellowish powder | |
| Non-volatile matter% | ≥98 | |
| PH | 5.0-9.0 | |
| Glass transition temperature | -15~±5 | |
| Film forming temperature | 0-10 | |
| Product Specification | ||
| Chemical Name | Ethylene-vinyl acetate powder | Unit |
| Exterior | White free flowing powder | |
| Protective colloid | PVA | % |
| Solid content | 97-99 | % |
| Ash content | 10±2 13±2 15±2 | % |
| Bulk density | 300-600 | g/l³ |
| Particle size | ≥80 | μm |
Variety
- The main application of RDP in the market :
- Vinyl acetate/Ethylene copolymer emulsion powder
- Ethylene/Chloride/ Vinyl laurate ternary copolymer emulsion powder
- Vinyl acetate/Ethylene and Higher fatty acid vinyl ester ternary copolymer latex powder
- Vinyl acetate/Higher fatty acid vinyl copolymer latex powder
- Acrylic acetate/Styrene copolymer latex powder
- Vinyl acetate/Acrylic acetate and high fatty acid vinyl ester ternary copolymer latex powder
- Vinyl acetate homopolymerised latex powder
- Binary co-polymer emulsion powder and Ternary co-polymer emulsion powder.
- Vinyl acetate and vinyl co-polymer resin remain the best technical solution, from the technical experience of polymer applied to mortar modification
Because: Vinyl acetate and vinyl co-polymer resin are one of the most used polymer in the world.
| Grade | Recommended Applications | |
| Rigid | Tile adhesive; Masonry mortar; Self-leveling mortar; Water-proofing Mortar; Repair mortar; EIFS adhesive | |
| Flexible | Cement Plaster; Wall putty; Grout; Emulsion-based material | |
| RDP’s Advantage: | ||
| – Supply excellent flexibility | – Improved workability | |
| – High bond strength | – Reduce water absorption | |
| – great durability and abrasion resistance | – Excellent rheology | |
| – Increase adhesive/cohesive strength | – Higher flexural strength | |
| – Improved water retention capability and open time | ||
(RDP)Re-dispersible Polymer Powder
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