Product Overview
Poly(acrylic acid) (PAA) is an anionic polymer known for strong thickening, dispersing, and water-binding performance in aqueous systems. This product is supplied as a 50% solution in water with an approximate molecular weight of 5,000, providing a convenient high-solids format for efficient dosing and blending into water-based formulations.
Lower molecular weight PAA grades are often selected for dispersion, stabilization, and pH-responsive functionality where moderate rheology control and consistent performance are desired across a range of industrial and formulation environments.
Key Properties
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50% aqueous solution for convenient handling and reduced dilution volume
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Anionic functionality supports dispersion and suspension stability
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Water-binding and viscosity control for formulated systems
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pH-responsive behavior supports gel formation and viscosity tuning
- Useful across water-based formulations requiring controlled rheology and stabilization
Applications
Water Treatment & Scale Inhibition
Used as a dispersant to help reduce scale buildup and support filtration efficiency in industrial water systems.
Adhesives & Coatings
Improves film formation, adhesion, and moisture retention in water-based coatings and compatible adhesive/coating formulations.
Personal Care & Hygiene Products
Functions as a stabilizer and thickener in cosmetics, lotions, and oral care formulations where controlled viscosity and stability are desired.
Detergents & Cleaning Agents
Enhances soil suspension and helps reduce redeposition in cleaning solutions and related formulations.
Solubility & Compatibility
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Supplied in: Water (50% solution)
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pH behavior: pH-responsive due to carboxylic acid groups; ionization can change viscosity and solution behavior.
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Formulation compatibility: Performance may vary with salts/electrolytes, pH, surfactants, and other formulation components.
Final properties depend on concentration, ionic strength, temperature, and degree of neutralization. Evaluate under target formulation conditions.
Formulation & Use Tips
- Mix thoroughly before use to ensure uniformity.
- For dilution, add the solution slowly to water under agitation to avoid localized viscosity changes.
- Adjust pH gradually when neutralizing; viscosity may change as the polymer ionizes.
- Consider electrolyte effects, as salts can influence thickening and dispersion stability.
Handling & Storage
- Store tightly closed in the original container.
- Keep in a cool, dry area and protect from contamination.
- Avoid extreme temperatures; inspect for changes in appearance or viscosity prior to use.
Frequently Asked Questions
1. What does “50% solution in water” mean?
This product is supplied as an aqueous solution containing 50% Poly(acrylic acid) by weight, which can simplify measuring and blending into water-based formulations while reducing the amount of water introduced during dosing.
2. How does MW ~5,000 affect performance vs. higher molecular weight grades?
Lower molecular weight grades typically contribute less viscosity than higher MW Poly(acrylic acid) grades and are often chosen for dispersing, stabilization, and pH-responsive performance where moderate rheology change is preferred.
3. Why can viscosity change after pH adjustment?
As carboxylic acid groups ionize during neutralization, polymer interactions in solution can change, affecting viscosity and stability. The final outcome depends on pH, concentration, and ionic strength.
4. What should I consider when diluting or blending this solution?
Add slowly with mixing to avoid localized concentration gradients. Monitor pH and electrolytes, as salts and surfactants can influence viscosity, clarity, and dispersion behavior.
5. What applications commonly use this material?
Poly(acrylic acid) solutions are used in water treatment and scale inhibition, coatings and adhesives, detergents and cleaning agents, personal care formulations, and other water-based systems where dispersion and controlled rheology are important.
Safety & Documentation
Follow standard laboratory and industrial hygiene practices. Refer to the Safety Data Sheet (SDS) for hazard information, recommended PPE, and safe handling guidance.
