Redispersible Latex Powder (RDP-VAE)

Redispersible Latex Powder (RDP-VAE)

RDP-VAE has good dispersibility and can be re-emulsified into stable polymer emulsion after adding water, so as to improve the performance of the product .It is the powder formed by spray drying of polymer emulsion, also known as dry powder glue.
This powder can be rapidly reduced to emulsion upon contact with water, and maintain the same properties as the initial
emulsion,that is, the evaporation of water will form a film, this film has high flexibility, high weather resistance and high
adhesion to a variety of substrates.

• 
  01

  RDP FOR TILE ADHESIVE

  Redispersible latex powder can also be used in ceramic tile adhesives and tile grouts.

• 
  02

  RDP FOR WATERPROOF MORTAR

  The emulsion powder with hydrophobicity can make the mortar have good water resistance.

• 
  03

  RDP FOR PLASTERING MORTAR

  It is an essential additive in mortar, it can improve the performance of mortar, improve the strength of mortar, bonding strength with all kinds of substrate. There are better water retention,flexibility,easy to construction.

• 
  04

  RDP FOR SELF-LEVELING MORTA

  It has good adhesion, good water retention,long open time, flexibility, sag resistance and good resistance.Freeze-thaw cycle capability.

Redispersible latex powder refers to a polymer powder that is modified by adding other substances to a polymer emulsion and then spray-dried. It can be redispersed into an emulsion using water as a dispersion medium and has redispersibility.

1.Preparation of polymer emulsion:
First, a copolymer emulsion of vinyl acetate (VAc) and butyl acrylate (BA) is prepared by polymerization. This process involves selecting suitable emulsifiers, protective colloids and initiators, as well as controlling reaction conditions such as temperature, pressure and reaction time to ensure the effective polymerization reaction. Commonly used emulsifiers are sodium dodecyl sulfate (SDS) and nonylphenol polyoxyethylene ether (OP-10), protective colloid is polyvinyl alcohol (PVA1788), and initiator is ammonium persulfate (APS). By adjusting the amount of emulsifier and protective colloid, and controlling the ratio of monomers, a copolymer emulsion with good stability and suitable glass transition temperature (Tg) can be obtained.

2.Spray drying:
The prepared copolymer emulsion is converted into a powder state by spray drying technology. This process needs to be carried out under specific process conditions, including the control of parameters such as air inlet temperature, atomizer speed, and solid content of feed liquid. During the spray drying process, the emulsion is atomized into tiny droplets, which are then quickly dried in a hot air flow to form a powder with good fluidity.

3.‌Collection and Packaging‌:
The dried powder is collected and sieved to remove particles that do not meet the specifications, then packaged and stored in a cool and dry place to maintain its quality stability.

Este produto é embalado em sacos de papel multicamadas revestidos com polietileno. Peso líquido: 25 kg.
Sacos vazios podem ser reciclados ou incinerados. Embalagens fechadas podem ser armazenadas por vários anos. Embalagens abertas podem afetar o teor de umidade do produto devido à umidade do ar. Armazene em local fresco e seco, longe da luz solar. Evite armazenar sob pressão.
Para obter informações sobre manuseio, envio e armazenamento do produto, consulte a FISPQ.