Lanphos PS10
Product Category: Anionics
Emulsifier for Emulsion Polymers
INCI Name: Potassium Trideceth‑10 Phosphate
Lanphos PS10 is an anionic phosphate ester surfactant supplied as a potassium salt, specifically developed for use asa primary emulsifier in emulsion polymerisation systems. It is a highly effective surfactant that can be used across a wide range of polymer chemistries without the need for a secondary stabilising surfactant.
The product is designed to produce extremely small polymer particle sizes while providing in‑built stabilisation to help prevent re‑agglomeration of polymer particles. This enhanced shear stability improves latex stability and can reduce or eliminate the requirement for highly ethoxylated nonionic stabilisers in the final formulation.
Lanphos PS10 is particularly suited to the manufacture of pure acrylic and styrene‑acrylic binders, where it contributes to improved scrub resistance, reduced water sensitivity, and enhanced pigment acceptance. Being APE‑free and VOC‑free, it provides a modern alternative for formulators seeking high‑performance emulsion polymerisation surfactants.
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Key Features
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Powerful primary emulsifier - Can be used as a primary emulsifier across a wide range of polymer systems without the need for a secondary surfactant to stabilise the emulsion.
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In‑built emulsion stabilisation - Provides excellent latex stability through its built‑in stabilising mechanism, helping to prevent polymer particle re‑agglomeration and enhancing shear stability.
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APE‑free, VOC‑free high‑performance emulsifier - Delivers extremely small particle sizes, enhanced scrub resistance, reduced water sensitivity, and improved pigment acceptance in polymer systems while remaining APE‑free and VOC‑free.
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Applications
Lanphos PS10 is used in a wide range of emulsion polymerisation and coatings applications, including:
Pure Acrylic Binders
– Acts as a highly effective primary emulsifier, producing small particle sizes and excellent latex stability while helping to improve scrub resistance and reduce water sensitivity.
Styrene‑Acrylic Binders
– Provides efficient emulsification and enhanced shear stability, helping to minimise particle re‑agglomeration and improve overall polymer performance.
Emulsion Polymerisation
– Functions as a primary emulsifier across a broad range of polymer systems without the need for a secondary stabilising surfactant, simplifying formulation design.
Architectural & Industrial Coatings
– Supports the manufacture of high‑performance coating binders with improved pigment acceptance, colour development, and film properties.
Latex Stabilisation
– Provides built‑in emulsion stabilisation and enhanced shear stability, reducing or eliminating the need for highly ethoxylated nonionic stabilisers.
APE‑Free Coating Systems
– Suitable for modern coating formulations requiring APE‑free and VOC‑free raw materials whilst maintaining excellent emulsification and polymerisation performance.
Specification
Appearance at 25°C
Clear pale straw liquid free from foreign matter
Colour - hazen
150 max
pH 5% aqueous
9.0 - 11.0
Free nonionic content %
4.5 max
Solids content %
24.0 - 26.0
Typical Properties
Composition
C13 ethoxy phosphate ester potassium salt
Viscosity at 25°C (cP)
~1000
Pour point °C
<0
Critical micelle concentration (mg/l)
12.1
CAS number
68186-36-7
Specific gravity at 25°C
1.04
Flash point closed cup °C
>150
Odour
Characteristic
Solubility in water
Soluble
Surface tension at 0.1% aqueous (mN/m)
36.7
