What are the types of redispersible latex powder? What is it made of? SLEO will answer for you.
species
The redispersible latex powders mainly used in the market are:
Vinyl acetate and ethylene copolymer rubber powder (Vac/E)
Ternary copolymer rubber powder of ethylene, vinyl chloride and vinyl laurel silicate (E/Vc/VL)
Vinyl acetate and ethylene and higher fatty acid vinyl ester ternary copolymer rubber powder (Vac/E/VeoVa)
Vinyl acetate and higher fatty acid vinyl ester copolymer rubber powder (Vac/VeoVa)
Acrylate and styrene copolymer rubber powder (A/S)
Vinyl acetate, acrylate and higher fatty acid vinyl ester ternary copolymer rubber powder (Vac/A/VeoVa)
Vinyl acetate homopolymer powder (PVac)
Styrene and butadiene copolymer rubber powder (SBR), etc.
composition
Redispersible latex powder is usually white powder, but there are a few other colors. Its ingredients include:
Polymer resin: Located in the core part of the rubber powder particles, it is also the main component of the redispersible latex powder.
Additives (internal): together with the resin, it can modify the resin.
Additives (external): In order to further expand the performance of redispersible latex powder, another material is added.
Protective colloid: A layer of hydrophilic material wrapped on the surface of redispersible latex powder particles. Most of the protective colloids of redispersible latex powder are polyvinyl alcohol.
Anti-caking agent: fine mineral filler, mainly used to prevent rubber powder from agglomerating during storage and transportation and to facilitate the flow of rubber powder (pour out from paper bags or tankers).