Supply Jiangsu Changshu redispersible powder manufacturer, redispersible powder prospects redispersible powder is made of a vinyl acetate and vinyl versatate -VeoVa or vinyl or acrylate binary or ternary copolymers After the modified emulsion powder obtained by spray drying, it has good dispersibility can be further re-dispersed into contact with the aqueous emulsion, and its chemical properties are identical with the initial emulsion. First, re-dispersible polymer powders consisting of: * redispersible powders usually white powder, but there are a few other colors. * Polymer resin: Located in the core of the powder particles, but also can play a role in re-dispersible polymer powders main ingredient. * Additives (inner): together with a resin modified resin acts. * Additives (outside): To further expand the re-dispersible polymer powders yet another performance to add material. * Protective colloid: In redispersible powder particle surface layer of hydrophilic material wrapped, the vast majority of dispersible polymer powders protective colloid is polyvinyl alcohol. * Anti-caking agents: fine mineral filler, primarily used to prevent caking powder and to facilitate the flow of powder (poured out from a paper bag or a tanker) two in the storage and transportation process, the role of re-dispersible polymer powders: * Can redispersible latex powder dispersed after deposition and enhance the role play as a second adhesive; * protective colloid is absorbed mortar system (after the film will not be destroyed water, or "secondary dispersion"; * film-forming polymer resin as a reinforcing material distributed to the entire mortar system, thereby increasing the cohesion of the mortar; Third, the history of re-dispersible polymer powders: re-dispersible polymer powders study began in 1934 polyvinyl acetate Germany IGFarbenindus AC company redispersible latex powder and powder of Japan after World War II labor and building a serious lack of resources, forcing Europe, especially Germany, using a variety of building materials to improve construction efficiency of powder, the late 1950s, Germany's Hoechst and tile g Chemical Company began re-dispersible polymer powders for industrial production. At the time, re-dispersible polymer powders are mainly for polyvinyl acetate type, mainly for wood glue, wall primer and cement wall material and so on. However, due to PVAc powder The minimum film-forming temperature is high, poor water resistance, alkali resistance and poor performance limitations of its use are subject to greater restrictions. With the successful industrialization VAE emulsion and VA / VeoVa emulsion, the 1960s, the minimum film-forming temperature 0 ℃, has good water resistance and alkali resistance dispersible polymer powders have been developed, after its application has been widely promoted in Europe, the scope of use is gradually extended to a variety of structural and non-structural construction adhesive , modified dry-mix mortar, wall insulation and finish systems, wall areas and smooth rubber seal gray paste, powder coatings, construction putty five, redispersible powder Applications: 1, EIFS : adhesive mortar: to ensure that the wall with mortar EPS board to improve the bond strength of a strong bond surface mortar: to ensure the mechanical strength of the insulation system, crack resistance and durability, impact resistance 2, caulks: Let mortar impermeability to prevent water intrusion simultaneously with the tile edges have good adhesion and low shrinkage, flexibility tiles renovation and wood putty plaster: Increases putty on special substrates (such as tiles surfaces, mosaic, plywood and other smooth surface) adhesion and bond strength, ensure the putty has good flexibility to strain expansion coefficients of the substrate 3, masonry mortar plastering: improve water retention; reduce porous substrates . dehydration 4, cement-based waterproof mortar: guaranteed waterproof mortar coating, but with the base surface has good adhesion to improve the compressive and flexural strength of mortar 5, self-leveling screeds: ensure mortar elastic modulus the amount of matching and flexural strength and crack resistance improve wear resistance and adhesive strength mortar and cohesion 6, mortar interface: to improve the surface strength of the substrate to ensure adhesion mortar 7, interior and exterior. Putty: improve the bond strength of putty, putty ensure a certain flexibility to cushion the effects of different grassroots produce different stretching stresses guarantee putty has good aging resistance and impermeability, moisture resistance. 8, repair mortar: the mortar to ensure that the expansion coefficient of the substrate to match the reduction in the elastic modulus of the mortar. Make sure there is enough water repellency mortar, permeability and adhesion. 9, tile adhesives and grouts: Tile adhesive: To provide a high strength bonding mortar, the mortar in order to give sufficient flexibility to a different strain of the substrate and the thermal expansion coefficient of the tile. Improve ease of construction operations, improve work efficiency. Six redispersible powder in the domestic market and prospects: In recent years, domestic demand for redispersible polymer powders show rapid growth momentum, rapid growth in sales year after year. Learned from the side, although this year showed a slump in the real estate market, but this did not affect the first few months of this year, sales of Taiwan Dalian Chemical, Wacker, National Starch powder and several other large manufacturers. Currently on the market redispersible powder mainly in Taiwan Dalian Chemical, Wacker-based, other domestic manufacturers market conditions are not the same. According to statistics, China each year about more than 20 billion square meters of new buildings, as well as the stock of several hundred million square meters of buildings in need of rehabilitation, and ready-mixed dry with the implementation of the national building energy laws and regulations, technology and vigorously mixing mortar promotion, as well as provincial and municipal building at the site of mortar stirred restrictions redispersible powder application is bound to be actively developed. Knox redispersible latex powder mainly used: wall putty powder, tile adhesives, tile grouts, dry interface agent, exterior insulation mortar, self-leveling mortar, repair mortar, decoration mortar, waterproof mortar outside insulation dry-mixed mortar. In the mortar is cement mortar in order to make the traditional brittleness, high elastic modulus and other weaknesses improved cement mortar impart good flexibility and tensile bond strength to resist and delay the generation of cracks cement mortar, Since the formation of interpenetrating polymer network structure mortar, continuous polymer film is formed in the pores and strengthen the bond between the aggregate, blocking some of the pores within the mortar, so the modified mortar hardened cement mortar performance ratio have greatly improved. Welcome to the building materials industry friends to inquire! Su Nuoke willing to work with you hand in hand!