Views:6 Author:Site Editor Publish Time: 2019-09-30 Origin:Site
The RDP is a water soluble redispersible powder. It is a copolymer of ethylene and vinyl acetate. It is easily soluble in water and forms an emulsion quickly. Its chemical properties are identical to those of the original emulsion. It has good bond strength, excellent alkali resistance, weather resistance, freeze-thaw resistance and excellent flexibility at low temperatures. Rdp for adhesive mortar particularly applicable to inorganic adhesive, such as cement, ash calcium powder, plaster mix or separate binding material, compared with the emulsion powder on the market, has the added quantity is little, the cost is low, the advantages of stable quality Redispersible polymer powder, produced by spray-drying special water-based emulsion, mostly based on vinyl acetate-ethylene (VAE),then obtained a free flowing organic polymer powder. It can re-disperse in water, and form a film after water evaporation by coalescence of individual polymer particles. The film acts as an organic binder, to glue together different substrates, reinforce mortar structure and provide excellent adhesion at cement or gypsum based dry mixed mortar substrate interface.
Hydroxypropyl methyl cellulose is divided into two kinds of ordinary hot soluble cold water instantly soluble. Hydroxypropyl methyl cellulose uses are 1, Gypsum series In the gypsum series of products, cellulose ethers are mainly used to retain water and increase smoothness. Together they play a cer
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