Why re-dispersible rubber powder polymer has good dispersibility?
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Author : Lzh
Update time : 2023-02-02 13:33:57
What is a redispersible rubber powder polymer? The research onredispersible rubber powderbegan in 1934 with polyvinyl acetate re-dispersible latex powder from I.G. Farbenindus AC of Germany and powdered latex from Japan. After World War II, a serious labor force shortage and building resources forced Europe, especially Germany, to adopt various powder building materials to improve construction efficiency. In the late 1950s, the German Hurst Company and Wacker Chemical Company began to industrialize the production of re-dispersible latex powder. At that time, The re-dispersible latex powder was also mainly polyvinyl acetate type, mainly used for wood glue, wall primer, and cement wall materials. However, its use is greatly limited due to the limitations of PVAc powder's high film-forming temperature, poor water resistance, poor alkali resistance, and other properties. With the successful industrialization of VAE lotion and VA/VeoVa lotion, the film-forming temperature was 0 ℃ in the 1960s. Redispersible latex powder with good water resistance and alkali resistance has been developed. After that, its application has been widely promoted in Europe. Its application scope has gradually expanded to various structural and nonstructural building adhesives, dry mixed mortar modification, wall insulation, finishing systems, wall plastering glue, sealing plaster, powder coatings, and building putty.
Composition of Redispersible Rubber Powder Polymer *Redispersible latex powder is usually white powder, but a few have other colors. Its components include *Polymer resin: located at the core of rubber powder particles, it is also the main component of re-dispersible latex powder *Additive (internal): It can modify the resin together with the resin *Additives (external): additional materials are added to further expand the properties of re-dispersible latex powder *Protective colloid: a layer of hydrophilic material wrapped on the surface of re-dispersible latex powder particles. The most protective colloid of re-dispersible latex powder is polyvinyl alcohol *Anti-caking agent: fine mineral filler, mainly used to prevent caking of rubber powder during storage and transportation and facilitate the flow of rubber powder (dumped from paper bags or tank cars).
Role of Redispersible Rubber Powder Polymers *The re-dispersible latex powder can be dispersed into a film and used as a second adhesive to play a reinforcing role
*The protective colloid is absorbed by the mortar system (it will not be destroyed by water after film formation or "secondary dispersion."
*The film-forming polymer resin is distributed in the whole mortar system as a reinforcement material, thus increasing the cohesion of the mortar; Function in folding wet mortar: improve construction performance; Improve the flow performance; Increase thixotropy and sag resistance; Improve cohesion; Extend the opening hours; Enhance water retention. The effect after folding and curing: increased tensile strength; Increased bending strength; Reduced elastic modulus; Improve deformability; Increase density of materials; increased wear resistance; Improved cohesive strength; Reduced carbonization depth; Reduced water absorption of materials; Make excellent material water increasing property (add water increasing glue powder).
Price of redispersible rubber powder polymer Redispersible rubber powder polymer particle size and purity will affect the product's price, and the purchase volume can also affect the cost of re-dispersible rubber powder polymer. A large amount of large amount will be lower. The dispersible rubber powder polymer price can be found on our company's official website.
Redispersible rubber powder polymer supplier Luoyang Tongrun Nano Technology Co. Ltd. (TRUNNANO) Luoyang City, Henan Province, China, is a reliable and high-quality global chemical material supplier and manufacturer. It has more than 12 years of experience providing ultra-high quality chemicals and nanotechnology materials, including redispersible rubber powder polymer, nitride powder, graphite powder, sulfide powder, and 3D printing powder. If you are looking for high-quality and cost-effective re-dispersible rubber powder polymer, you are welcome to contact us or inquire at any time
