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High-performance polyacrylate-based polyelectrolyte dispersant with excellent colloidal stabilization capability.
Low-foaming formulation suitable for high-shear industrial processes and automated dosing systems.
Effective in both hard and soft water conditions, maintaining performance across a broad pH range (pH 4–10).
Non-ionic character combined with anionic functionality ensures compatibility with cationic and non-ionic additives.
Eco-preferred profile: APEO-free, biodegradable backbone, and compliant with major global regulatory frameworks (e.g., REACH, TSCA).
Cementitious systems: Enhances dispersion of cement particles and supplementary cementitious materials (SCMs) in ready-mix concrete.
Construction chemical formulations: Key rheology modifier in tile adhesives, grouts, and self-leveling compounds.
Mineral processing: Stabilizes pigment and filler suspensions in aqueous slurries for ceramics and coatings.
Industrial cleaning concentrates: Improves soil suspension and prevents redeposition on hard surfaces.
Water-based architectural coatings: Controls pigment flocculation and supports long-term storage stability.
| Chemical Type | Polyacrylic acid-based polyelectrolyte (sodium neutralized) |
| Product Form | Aqueous solution (~20% active content) |
| Appearance | Clear to slightly opalescent, colorless to pale yellow liquid |
| pH (1% aqueous solution) | 6.5 – 8.5 |
| Density (20 °C) | 1.02 – 1.05 g/cm³ |
| Viscosity (25 °C, Brookfield LVT, spindle #1, 6 rpm) | 50 – 200 mPa·s |
| Solubility | Completely miscible with water; limited solubility in organic solvents |
| Storage Stability | ≥12 months at 5–30 °C in unopened original container |
Q1: What is the primary function of Sokalan PA 20 PN in formulations?
A: Sokalan PA 20 PN is a polyacrylate-based polyelectrolyte surfactant designed primarily to provide dispersion stabilization, viscosity modification, and colloidal stabilization in aqueous systems—especially in pigment-rich or particulate-containing formulations such as architectural coatings, industrial paints, and ceramic slurries.
Q2: Is Sokalan PA 20 PN compatible with common biocides and other additives used in water-based coatings?
A: Yes, Sokalan PA 20 PN generally exhibits good compatibility with standard preservation systems, coalescing agents, defoamers, and thickeners used in waterborne coatings. However, compatibility should always be verified experimentally within the final formulation due to potential interactions with cationic species or highly acidic components.
Q3: How does Sokalan PA 20 PN differ from conventional non-ionic surfactants?
A: Unlike typical non-ionic surfactants, Sokalan PA 20 PN functions as an anionic polyelectrolyte with high molecular weight and charge density. This enables strong adsorption onto particle surfaces and effective electrostatic and steric stabilization—making it particularly suitable for demanding dispersion applications where long-term storage stability and shear resistance are critical.
Q4: What is the recommended addition method for optimal performance?
A: For best results, Sokalan PA 20 PN should be added during the pigment grinding or let-down stage, preferably prediluted in water and introduced under moderate agitation. Direct addition to highly concentrated or low-pH phases should be avoided to prevent localized precipitation or reduced efficiency.
Q5: Can Sokalan PA 20 PN be used in low-VOC or zero-VOC formulations?
A: Yes, Sokalan PA 20 PN is inherently free of volatile organic compounds (VOCs) and is widely applied in low-VOC and zero-VOC coating systems, supporting compliance with modern environmental regulations without compromising dispersion quality or film integrity.
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E-mail: wangxingqiang@ericwchem.com
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