Introduction to Latex Powder
Redispersible latex powder is usually white powder, and its composition mainly includes:
1. Polymer resin: located at the core of rubber powder particles, it is also the main component of redispersible latex powder, for example, polyvinyl acetate/vinyl resin.
2. Additives (internal): Together with the resin, they can modify the resin, such as plasticizers that reduce the film-forming temperature of the resin (usually vinyl acetate/ethylene copolymer resins do not need to add plasticizers) Not every kind Rubber powder has additive ingredients.
3. Protective colloid: a layer of hydrophilic material wrapped on the surface of redispersible latex powder particles, most of the protective colloid of redispersible latex powder is polyvinyl alcohol.
4. Additives (external): Additional materials are added to further expand the performance of the redispersible latex powder. For example, adding superplasticizers to certain flow-aiding rubber powders, like internally added additives, not every redispersible latex powder contains such additives.
5. Anti-caking agent: fine mineral filler, mainly used to prevent caking of rubber powder during storage and transportation and facilitate the flow of rubber powder (dumped out of paper bags or tank trucks).
Post time: Apr-26-2023