What is the composition of dispersible polymer powder?
Dispersible polymer powder is usually white powder, and its main components include:
1. Polymer resin: It is located in the core of powder particles and plays an important role in the main component of redispersible latex powder, such as polyvinyl acetate/vinyl resin.
2. Additives (internal): together with the resin, play the role of modifying the resin, such as reducing the plasticizer of the resin film (usually vinyl acetate/ethylene copolymer resin does not need to add plasticizer). Not every powder has added ingredients.
3. Protective colloid: The particles on the surface of the redispersible particles are wrapped in a layer of hydrophilic material, and the vast majority of the redispersible latex powder protective glue is polyvinyl alcohol.
4. Additives (external): In order to further expand the performance of the redispersed polymer powder, additional materials are added. Such as adding superplasticizers to some viscous powders. Like additives, not every redispersible polymer powder contains this additive.
5. Anti-caking agent: fine mineral filler, mainly used to prevent the powder from agglomerating during storage and transportation, easy to powder (dump out from paper bag or oil tank).