Vanconol® LFS-1907 Low-Foam Surfactant
Vanconol® LFS-1907 Low-Foam Surfactant
Abstract
Vanconol® LFS-1907 is a nonionic surfactant based on a branched alcohol polyether structure, developed to address core challenges such as poor dynamic wetting and foam interference in waterborne systems. Its key benefits include significantly reducing dynamic surface tension (as low as 26.8 mN/m at 6 bubbles/s), providing efficient wetting and low-foam performance, and offering excellent formulation compatibility. Compared with conventional surfactants, its static surface tension is as low as 25.7 mN/m, and it is APEO-free, making it suitable for high-speed application in industrial scenarios such as waterborne coatings, printing inks and adhesives. It is a suitable option for improving production process stability and product performance.
Core Product Information
| Item | Specification |
|---|---|
| Product model | LFS-1907 |
| Chemical type | Branched alcohol polyether surfactant (nonionic) |
| Appearance (25°C) | Pale yellow to yellow liquid |
| Active Matter (wt.%) | 100 |
| Water solubility | Miscible with water |
Key Performance Indicators
| Performance | Value |
|---|---|
| Static surface tension (0.3% aqueous solution, 25°C) | 25.7 mN/m |
| Dynamic surface tension at 6 bubbles/s (0.3% aqueous solution, 25°C) | 26.8 mN/m |
| Cloud point (5% aqueous solution) | 30-40°C |
| Environmental properties | APEO-free |
Main Features and Advantages
- Efficient dynamic wetting: Rapidly lowers dynamic surface tension and is suitable for high-speed spraying, roller coating and similar processes, helping reduce defects such as craters and fisheyes caused by poor wetting.
- Low-foam performance: Suppresses foam generation during high-speed mixing and application, reducing the risk of production interruptions and surface defects.
- Broad compatibility: Highly compatible with anionic and nonionic additives and resin systems, allowing flexible formulation.
- Environmentally friendly and safe: APEO-free and compliant with green chemistry requirements.
Recommended Application Fields
- Waterborne industrial coatings: Used in architectural coatings, metal protective paints and similar systems to improve wetting of substrates (such as metal and plastic), helping reduce surface defects during high-speed roller coating or spraying.
- Printing inks: Serves as a wetting and dispersing additive in waterborne flexographic/gravure inks, improving dye stability and print uniformity for high-speed printing processes.
- Textile dyeing and printing: Used as a leveling agent and wetting agent in fabric pre-treatment and scouring processes to improve dye penetration uniformity.
- Industrial cleaners: Suitable for waterborne cleaning formulations such as electroplating and cutting fluids, rapidly penetrating oil and suppressing foam to improve cleaning efficiency.
- Leather chemicals: Serves as a degreasing emulsifier, helping remove grease from leather surfaces without leaving foam residue.
Usage and Recommended Dosage
Addition sequence: Add after the resin or main additives have been incorporated, and continue stirring for 15-30 minutes to ensure uniform dispersion.
Viscosity adjustment: If the system viscosity increases, gently heat to 40-50°C to restore flow.
Low-temperature handling: If the product solidifies or separates, heat and stir until fully dissolved before use; performance is not affected.
Recommended dosage: The typical dosage is 0.2%-2% of the total formulation, and the optimum level should be determined by dosage screening based on system compatibility.
Safety and Storage
- Safety precautions: Wear protective glasses and gloves during handling. In case of skin contact, rinse with water; if splashed into eyes, rinse immediately with plenty of water and seek medical attention.
- Storage conditions: Store sealed in a cool, ventilated place, away from heat, sparks and open flames. Recommended storage temperature: 5-40°C.
- Packaging: 25 kg drums, 200 kg drums.
- Shelf life: 24 months from the date of manufacture under proper storage conditions.
Frequently Asked Questions
Q: How does the “low-foam” property of LFS-1907 perform in high-speed mixing systems?
A: Through molecular structure design, this product suppresses foam generation. During high-speed dispersion or application it significantly reduces foam formation, helping reduce process interruptions or surface defects caused by foam, and is particularly suitable for automated spraying and roller coating.
Q: What is the practical significance of the dynamic surface tension (26.8 mN/m)?
A: The lower the dynamic surface tension, the faster the liquid spreads when contacting the substrate at high speed. The low dynamic surface tension of LFS-1907 ensures that waterborne systems immediately wet the substrate during high-speed printing and coating, reducing missed coating or cratering.
Q: Can this product be combined with anionic surfactants?
A: Yes. LFS-1907 is a nonionic surfactant and is compatible with both anionic and nonionic additives. Combining it can further optimize wetting and stability; preliminary compatibility testing is recommended.
Q: If the product solidifies at low temperature, how should it be handled to preserve performance?
A: Solidification is a physical phenomenon. Simply warm the product to about 40°C and stir until fully dissolved to restore performance. No additional solvent is needed, and chemical stability is unaffected.
Contact Us
- If you need free samples, a detailed Technical Data Sheet (TDS) or Safety Data Sheet (SDS), or have any technical questions, please contact us through the following channels:
- Company: Tianjin Hi-Perferal Advanced Materials Co., Ltd.
- Address: No. 2-1, Zhenghua Road, Caozili, Wuqing District, Tianjin
- Technical service hotline: 022-82910362
- Website: www.surfychem.com