The content of redispersible polymer powder
November 25th 2024
Redispersible latex powder is a water-soluble redispersible powder, a copolymer of ethylene and vinyl acetate, with polyvinyl alcohol as a protective colloid. Because the redispersible latex powder has high binding properties and other unique properties, such as water resistance, workability and thermal insulation, etc., its application range is extremely wide. Therefore, redispersible latex powder is very popular in the construction industry market, but in recent years, due to improper selection of redispersible latex powder, the construction effect is not ideal. Choosing the right redispersible latex powder is very important, so which aspects should be considered? Let me introduce you to the following:
1. The glass transition temperature of the redispersible latex powder:
The glass transition temperature is an important indicator of the physical properties of the redispersible latex powder. For a specific product, a reasonable choice of the glass transition temperature of the redispersible latex powder is beneficial to enhance the flexibility of the product and avoid problems such as cracking;
2. Resolubility;
3. The lowest film-forming temperature;
The redispersible latex powder and water are mixed and re-emulsified, which has similar properties to the original emulsion, that is, a film will be formed after the water evaporates. This film has high flexibility, and its adhesion to various substrates is very good.
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