Views:3 Author:Site Editor Publish Time: 2019-11-19 Origin:Site
RDP is composed of a special polymers made of powder adhesive after spray drying. This powder is contact with water can be dispersed again in soon after forming emulsion, and with the nature of the same as the initial emulsion, namely the film can be formed after the moisture evaporation, the film has high flexibility, high resistance to weathering and on various substrate with high caking property. the powder environmental protection, energy saving, high quality, used for powder materials, dry-mix mortar is an indispensable functional additives.
Redispersible polymer Powder was further modified by the method of spray drying adding other substances to polymer latex. As a kind of polymeric powder with redispersible, It can be made into aqueous emulsion dispersed in the water.
It can be emulsified with water and improve cohesion between mortar and its general supports;High impact resistance;It can also improve the constructability and mechanical properties of the mortar.
Redispersible Polymer Powder is produced by spray-drying special water-based emulsion, mostly based on vinyl acetate and ethylene. It dissolves in water easily and quickly forms emulsion. Main content:
Protective colloid: Polyvinyl alcohol
How to protect the finished product of gypsum-based self-leveling mortar?The windows should be closed before the construction work, and all the doors should be closed after the construction work is completed. Pay attention to moisturizing and maintenance within 24 hours after the completion of const
HPMC without surface treatment do not dissolve in hot water above 85, but can swell and disperse in hot water. Usually, the following methods are used:1.Take about 1/5-1/3 of the required amount of hot water, stir to completely swell the added product, and then add the remaining part of the water, w