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A technical overview of Acrylic Copolymer Emulsion 30% (CAS No. 25212-88-8) as an alkali-swellable emulsion (ASE) modifier.
Acrylic Copolymer Emulsion 30% (CAS No.: 25212-88-8) is a hydrophobic, cross-linked alkali-swellable anionic acrylic emulsion copolymer designed specifically to impart high yield stress, excellent suspending capacity, and remarkable clarity to water-based personal care applications. Provided as a low-viscosity liquid containing 30% active polymer solids, it is easily handled and formulated without the dust hazards associated with powder thickeners.
The mechanism relies on Alkali-Swellable Emulsion (ASE) behavior. Upon neutralisation by a suitable water-soluble base (such as Sodium Hydroxide, Potassium Hydroxide, or Triethanolamine), the carboxylic acid groups along the polymer backbone are neutralized, forming carboxylate anions (COO⁻). This generates immediate electrostatic repulsion along the backbone, prompting the coiled chains to expand into a highly hydrated, rigid gel network. The swelling locks water molecules in place and dramatically increases the formulation's yield value.
In surfactant systems, maintaining a permanent suspension of insoluble particles (such as anti-dandruff zinc pyrithione, microcapsules, organic beads, scrubbing agents, or pearlescent pigments) requires more than just high viscosity. It relies on establishing a critical Yield Stress. If the gravitational stress exerted by the suspended particles is less than the yield stress of the polymer network, the particles will remain indefinitely suspended, avoiding phase separation, precipitation, or creaming.
Acrylic Copolymer Emulsion 30% establishes a network that provides excellent yield stress even at low concentrations, while exhibiting shear-thinning (pseudoplastic) properties. This means that under shear (e.g. squeezing a bottle, pumping, or applying to skin), the formulation flows smoothly with a low viscosity, but returns to its structured, high-viscosity state as soon as the shear force is removed.
| Performance Indicator | Carbomer Powders | Acrylic Copolymer Emulsion 30% (CAS 25212-88-8) | Natural Gums (Xanthan/Guar) |
|---|---|---|---|
| Physical Form & Processing | Powder (requires wetting & dispersion time) | Liquid Emulsion (instant cold-process dilution) | Powder (susceptible to clumping/microbial attack) |
| Yield Value (Suspending Power) | High | Excellent | Moderate to Low |
| Clarity / Transparency | Excellent | High to Semi-Transparent (pH dependent) | Translucent to Opaque |
| Shear-Thinning Index | High | Excellent | Moderate |
| Salt & Electrolyte Tolerance | Low (sensitive to monovalent/divalent ions) | Moderate (optimized via surfactant selection) | High |
Adapting rheological additives to meet the demands of clean beauty, green chemistry, and eco-friendly personal care.
Modern formulations are shifting toward mild, amino acid-based surfactants (such as Sodium Cocoyl Alaninate and Sodium Methyl Cocoyl Taurate). Traditional carbomers often experience structure collapse in these systems. Suzhou Yuantairun's customized Acrylic Copolymer 30% is engineered to optimize macromolecular entanglement with mild surfactants, securing clear formulations even in sulfate-free formulations.
By eliminating the heating and energy-intensive hydration cycles required by standard dry polymer thickeners, our 30% active emulsion enables cold-process processing. This significantly reduces carbon emissions during factory mixing, shortens batch cycle times by up to 40%, and allows formulators to integrate heat-sensitive botanical extracts and vitamins early in the blending cycle.
Suzhou Yuantairun's R&D department is actively researching partially bio-sourced acrylic monomers. Our roadmap aims to introduce hybrid natural-synthetic acrylic copolymers that retain the mechanical properties and suspending yield value of CAS 25212-88-8 while improving the ultimate biodegradation rate in aquatic environments, ahead of future global microplastic limits.
How the Acrylic Copolymer Emulsion 30% integrates into commercial formulations to deliver stable, high-performance personal care products.
Home Care
Stabilizes surfactant systems based on SLES and AOS, keeping stain-removing enzymes and optical brighteners uniformly dispersed at different temperatures.
Personal Care
Maintains high suspension for scrubbing beads, exfoliating jojoba esters, and active microcapsules without altering the mild profile of amino acid surfactants.
Textile Care
Prevents phase separation and thinning in concentrated formulations containing cationic surfactants, ensuring stable viscosity over long storage periods.
Body Care
Suspends pearlescent agents (like EGDS) and glitter particles uniformly, while maintaining clear formulas and producing a rich, dense foam profile.
Industrial Cleaning
Provides robust thickening and suspension for alkaline cleaning systems containing solvents and highly concentrated anionic surfactants.
B2B Customized Solutions
We tailor polymer structures and solids ratios to meet specific customer requirements for hotels, barbershops, or retail brands, matching viscosity and price targets.
Suzhou Yuantairun Chemical Co., Ltd. is a leading supplier in the daily chemical raw materials industry. We are dedicated to delivering high-quality products and comprehensive one-stop services to support our customers in R&D, production, and supply chain optimization. Our mission is to drive innovation and efficiency in the global daily chemical industry by providing cutting-edge solutions tailored to our clients' needs.
With our advanced research lab and manufacturing partnerships, we specialize in high-efficiency rheology modifiers, mild amino acid surfactants, natural-source foaming agents, and preservative boosters. We ensure that our materials originate from well-managed, sustainable, and compliant resources to meet global regulatory requirements.
How our smart manufacturing infrastructure translates into economic advantages and reliable supply for global brands.
Our production facilities utilize Distributed Control Systems (DCS) to monitor critical polymerization variables in real-time, including monomer feed rates, temperature curves, and agitation speed. This ensures batch-to-batch consistency and maintains the viscosity and yield values of CAS 25212-88-8 within tight tolerance limits.
Each batch undergoes rigorous quality testing. We measure non-volatile matter, residual monomers (acrylic acid < 10 ppm), heavy metals, emulsion particle size distribution, and pH stability. Certificates of Analysis (COA) are provided with every shipment to ensure tracebility for cosmetic regulatory standards.
We optimize our supply chain to ensure quick turnarounds. Strategically located warehouses near major ports allow us to provide Just-in-Time delivery, reducing inventory holding costs for our global customers and protecting them from supply disruptions.
Helping you navigate international cosmetic ingredient regulations and formulation transitions smoothly.
Cosmetic ingredients must meet strict safety and compliance standards. Suzhou Yuantairun's Acrylic Copolymer Emulsion 30% (CAS No. 25212-88-8) is fully compliant with major global regulations, including:
We offer versatile packaging options designed to protect the integrity of the emulsion and accommodate different plant layouts:
Storage conditions: The product should be stored in closed containers between 5°C and 35°C, away from direct sunlight and freezing temperatures, to prevent skinning or irreversible sedimentation.
Expert solutions to common challenges faced by formulators when using CAS No. 25212-88-8.
Suzhou Yuantairun Chemical offers expert formulation support, sample evaluations, and reliable bulk logistics to meet your production needs.
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