Vanconol® AN-13 Suspension Stabilizer for Waterborne Systems
Vanconol® AN-13 Waterborne High-Efficiency Suspension Stabilizer
Abstract
Vanconol® AN-13 is an inorganic nano suspension stabilizer developed to address settling and agglomeration of high-density powders in waterborne systems. Its core functions are to form a stable three-dimensional network structure through thorough dissociation, provide excellent thixotropic suspension performance, and effectively prevent hard settling of powders during storage. Compared with conventional solutions, it offers both good chemical and kinetic stability, a high degree of aqueous dissociation, and environmental friendliness, making it a suitable suspension aid for high-density powders in waterborne coatings, printing inks, and other systems.
Core Product Information
| Item | Specification |
|---|---|
| Product model | AN-13 |
| Chemical type | Inorganic nano material |
| Appearance | White or off-white powder, odorless |
| Particle size (200-mesh standard sieve) | ≥95% passing |
| pH (5% dispersion) | 7.0-10.0 |
Key Performance Indicators
| Performance | Value |
|---|---|
| Suspension stability | Forms a three-dimensional network structure that effectively suppresses settling and agglomeration |
| Thixotropy | Shear-thinning; recovers high viscosity at rest |
| Degree of dissociation | High aqueous dissociation; good compatibility |
| Environmental properties | Environmentally friendly; no hazardous substances released |
Main Features and Advantages
- Efficient suspension: Forms a three-dimensional network through dissociation of nano particles, providing lasting suspension force for high-density powders
- Thixotropic control: Shear-thinning behavior for easy mixing during application, with rapid viscosity recovery at rest to prevent settling
- Broad compatibility: Adapts to a variety of waterborne systems and is compatible with common resins and additives
- Environmentally friendly: Inorganic composition with no VOC emissions, meeting green production requirements
Recommended Application Fields
- Waterborne architectural coatings: Used in interior/exterior wall emulsion paints, stone-textured coatings, etc.; prevents settling of high-density fillers such as titanium dioxide and ground calcium carbonate, and improves in-can appearance and application leveling
- Industrial protective coatings: In waterborne industrial coatings such as epoxy and polyurethane, suspends anticorrosive pigments such as zinc powder and iron oxide red, improving coating uniformity and corrosion-protection durability
- Waterborne printing inks: Used in flexographic and gravure printing inks; prevents pigment settling and caking, ensuring consistent print color and storage stability
- Ceramic slurries: Provides suspension support in ceramic glazes and body slurries, improving process flowability and firing quality
- Adhesives: Suspends fillers such as calcium carbonate and talc, preventing phase separation and ensuring consistent performance during storage
- Agrochemical suspension concentrates: Used in waterborne agrochemical formulations to prevent settling of active ingredients and improve spray uniformity and efficacy
Usage and Recommended Dosage
- Addition sequence: Mix with water first and disperse at high speed until fully dissociated, then add the powders and other additives
- Combined use: To optimize dispersion and suspension, it can be used together with the Toynol® dispersant series
- Mixing: Thorough shear dispersion is required (recommended ≥1000 r/min for 10-15 minutes) to activate the nano network structure
- Recommended dosage: The typical dosage is 0.1%-0.8% of the total formulation; the specific dosage should be determined by a dose-response study (use the upper end of the range for high-density powders)
Safety and Storage
Safety note: Wear safety goggles and a dust mask during handling. Avoid inhaling dust; on skin contact, rinse with water; if it gets into the eyes, rinse immediately with plenty of water and seek medical attention.
Storage conditions: This is a solid powder; store sealed in a dry, cool, ventilated place, away from heat, sparks and open flames.
Packaging: 25 kg bags.
Shelf life: 24 months from the date of manufacture under the specified storage conditions.
Frequently Asked Questions
Q1: How does AN-13 achieve long-term anti-settling in high-density powder systems?
AN-13 is an inorganic nano material that, after thorough dissociation in water, forms a three-dimensional network structure that supports the powder particles through steric hindrance while providing shear-thinning behavior: high viscosity at rest prevents settling, and shear during application lowers viscosity for ease of use.
Q2: Does the system pH need to be adjusted for this product to work?
No. AN-13 works stably within the pH 7.0-10.0 range; no special adjustment of system acidity/alkalinity is required, and it is highly compatible.
Q3: If the system already uses a dispersant, is AN-13 still needed?
Dispersants mainly address initial powder agglomeration, while AN-13 focuses on long-term suspension and anti-settling. The two are complementary, and combined use is recommended: add the dispersant first to grind the powders, then add AN-13 for suspension stabilization, which can markedly improve storage stability.
Q4: How should the optimal dosage be determined through testing?
We recommend preparing three samples at 0.1%, 0.4%, and 0.8%, placing them in stoppered graduated cylinders to observe settling over 7-14 days, and combining viscosity and rheology tests to select the minimum dosage that provides good suspension and appropriate flowability.