Views:3 Author:Site Editor Publish Time: 2019-09-10 Origin:Site
Redispersible Polymer Powderis produced by spray-drying special water-based emulsion. Mostly based on vinyl acetate-ethylene. Dissolves in water easily and quickly forms emulsion. Its chemical properties are the same as original emulsion competely. Excellent flexibility in low temperature.
It can glue together different substrates, reinforce mortar struture and provide excellent adhesion at cement or gypsum based dry mixed mortar substate interface.
Redispersible Polymer powder(Redispersible Latex powder) is the main raw material in production of internal, external wall putty, adhesive mortar and plaster mortar. the powder is specially applied as the agglutinant of basis materials on triple superphosphate, Talcum powder and white cement and so on. It can improve the adhesion properties water resistance, flexural strength and operability of the basis materials.
The quantity of the powder is to different kinds of basis material. The substrate mixture should be stirred and dispersed fully to ensure the excellent stability of the products. However, high temperature generated from high-pressure and shear stress when mixed should be avoided.
Industrial-grade hydroxypropyl methyl cellulose used in mortar is distinguished by viscosity. Generally, the following types are commonly used Low viscosity: 400 is mainly used for self-leveling mortar. Reason: low viscosity, good leveling, high mortar density. Medium and low viscosity: 20000-400000
Hydroxypropyl methyl cellulose ether-HPMC, as an auxiliary additive widely used in the field of building materials, is mainly used for water retention, thickening and improving the workability of the finish product. Water retention rate is often one of the core indicators for selecting high-quality