Emulsion Polymerisation | Lankem Surfactants |

Emulsion Polymerisation

Emulsion Polymerisation is a method in which polymers are prepared. The process of emulsion polymerisation consists essentially of forming an emulsion of a monomer, or a mixture of co-monomers, in an aqueous medium by the use of emulsifiers and then to polymerise the system in a controlled way with the use of an initiator.

 

The selection of suitable emulsifiers is complex and in some cases, anionics or nonionics can be used singularly but in most cases, an anionic/nonionic system is preferred as a way of increasing the stabilisation of the latex.

 

After many years of practical experience, we can provide starting surfactant recommendations for each polymer type listed. In most cases, the polymer chemist will need to evaluate the emulsifiers types, additional levels and ratios in order to obtain the required performance.

Vinyl Acetate Homopolymer (PVA)

 

Polyvinyl acetate homopolymer emulsions, often called PVAc or occasionally PVA homopolymers. Polyvinyl acetate is synthesized by the emulsion polymerisation of vinyl acetate monomer (VAM). PVAc emulsions are best known for their use in wood glues or school glues due to their strong adhesion properties.

 

However, PVAc emulsions are also widely used in many industrial and consumer end-use applications:

  • Water-based adhesives

  • Carpet backings

  • Paper and paperboard coatings

  • Carpet backings

  • Building and construction products

Lanphos PS10

Kemsurf OS38

Kemsurf EM30

Lanspec EMP404

Vinyl Acetate - Acrylic

Kemsurf SBE30

Kemsurf ESD60

Kemsurf OT60

Lanspec EMP102

Lanspec EMP906

Lanspec EMP208

Vinyl Acetate - VeoVa

Kemsurf ESD

Kemsurf ESD60

Lanpsec HSR

Vinyl Chloride (PVC) & copolymers

Kemsurf SBE30

Kemsurf DSA

Acrylamide

Lansurf SMO

Styrene

Kemsurf SBE30

Kemsurf DSA

Kemsurf EM9

Kemsurf EM30

Styrene Acrylics

Styrene acrylic copolymer dispersions are used in a variety of industrial and consumer end-use applications, including:

 

  • Architectural decorative coatings

  • Adhesives and fillers

  • Glass fibre binder applications, such as wall coverings

Lanphos PS10

Lanphos PS6-25A

Kemsurf OS38

Styrene - Butadiene

Kemsurf SBE30

Acrylonitrile - Butadiene - Styrene

Kemsurf SBE30

Kemsurf DSA

Acrylic Monomers

Kemsurf ESD

Kemsurf ESD60

Kemsurf DSA

Kemsurf EM9

Kemsurf EM30

Lanspec EMP208

Lansurf DPE808

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