Redispersible emulsion powder is a kind of water soluble redispersible powder, which is a copolymer of ethylene and vinyl acetate, and polyvinyl alcohol is used as protective colloid. Because of its high adhesive properties and other unique properties, such as water resistance, workability and thermal insulation, redispersible latex powder has a wide range of applications. Therefore, redispersible latex powder is very popular in the construction industry market, but in recent years, because of the inappropriate selection of redispersible emulsion powder, the construction effect is not ideal. It is very important to choose the appropriate redispersible milk powder. What aspects should be considered? Let me introduce you:
The glass transition temperature of 1, redispersible emulsion powder:
The glass transition temperature is an important index of redispersible latex powder physical properties, for certain products, reasonable selection of the glass transition temperature of redispersible latex powder is beneficial to enhance product flexibility, avoid cracking and other problems;
2. Re solubility;
3. Minimum film forming temperature;
Redispersible emulsion powder and water mixed with emulsification, have similar properties with the original emulsion, that is, the evaporation of water will form a film. This film has high flexibility and adhesion to various substrates are very good.