Corrosion Inhibitor for Aluminum Alloys Vanconol ALI-910

🎯 Summary

Vanconol ALI-910 is an anionic corrosion inhibitor produced by the phosphorylation of C9-10 polyether. Its unique molecular structure combines the strong adsorption and chelation capability of phosphate groups with the excellent water solubility and penetrability of polyether chains, enabling the formation of a dense, firmly anchored protective adsorption film on aluminum alloy surfaces. This effectively inhibits corrosion, pitting corrosion, and discoloration (e.g., blackening, white rust) caused by moisture, acidic/alkaline media, and mechanical stress during processing. This product is environmentally friendly, exhibiting outstanding resistance to alkali, high temperature, and hard water, and is compatible with a wide range of additives. It serves as a core corrosion-inhibiting additive for high-performance aluminum alloy machining fluids.

📊 Technical Specifications

Item	Specification
Appearance (25°C)	Colorless to light yellow transparent viscous liquid
Solid Content	≥95%
pH (2% Aqueous Solution)	≤3.0
Ionic Type	Anionic
Acid Value (mgKOH/g)	280-320
Phosphorus Content	6-8%
Chemical Stability	Resistant to strong alkali (up to 200g/L NaOH), high temperature, oxidizing/reducing agents, and hard water; resistant to hydrolysis

🛠️ Performance Features

Outstanding Corrosion Inhibition: The phosphate groups rapidly chelate with aluminum alloy surfaces, forming a hydrophobic, dense monomolecular protective film that significantly retards the corrosion process of aluminum.

Broad Adaptability: Maintains excellent corrosion inhibition performance across a wide pH range (particularly in alkaline environments) and at elevated temperatures (≤90°C), meeting demanding processing conditions.

Excellent Overall Performance: Possesses strong penetrating power and emulsifying/dispersing capability, helping active components of the machining fluid reach all areas of complex workpieces and emulsify away cutting oils. Additionally, it provides a degree of lubricity, helping reduce tool wear and improve workpiece surface finish.

Environmental Friendliness and Compatibility: Compatible with anionic and nonionic surfactants, alkanolamine corrosion inhibitors (e.g., borate esters), and lubricants, allowing flexible formulation. Free from heavy metals and other restricted substances, readily biodegradable, and aligned with environmental sustainability trends.

📝 Applications

Aluminum Alloy Machining Fluids: Used as an antirust and corrosion inhibitor in cutting, grinding, and lapping fluids.

Metal Cleaners and Pretreatment: Used as an antirust and corrosion inhibitor in degreasing agents and cleaning solution formulations.

Forming Processes and Specialty Lubrication: Used as a corrosion inhibitor, extreme-pressure additive, and lubricant in cold-rolling emulsions, stamping fluids, wire-drawing oils, and lubricating oil formulations.

Other Applications: Used as an additive in antirust chemical products.

🧪 Application Guide

Recommended Dosage and Usage

Dosage: A dosage of 1% – 5% is recommended in aluminum alloy machining fluid formulations (the specific amount should be determined through testing based on water hardness, processing intensity, and antirust requirements).

Usage: It is recommended to first dilute the product with an appropriate amount of water or alcohol ether solvents, or add it slowly to the machining fluid base under stirring to ensure uniform dispersion. Some formulations may require neutralization with liquid alkali (e.g., sodium hydroxide) to a weakly alkaline pH prior to use for optimal performance.

Reference Formulation

Example base formulation:

ALI-910 Phosphate Ester (3%-5%)

Triethanolamine (2%-4%, for pH adjustment and synergistic corrosion inhibition)

Borate ester corrosion inhibitor (3%-5%, for enhanced antirust performance)

Coupling agent (e.g., isopropanol, 2%)

Deionized water (balance)

Handling Precautions

Optimal pH Window: Corrosion inhibition is most effective in a weakly alkaline environment (pH 8.0-9.5); prolonged use under strongly acidic conditions (pH<3) should be avoided.

Temperature Control: For prolonged use, temperatures above 80°C are not recommended.

Storage: Keep sealed and avoid contamination with strong oxidizing agents.

⚠️ Safety and Storage

Packaging: 50 kg plastic drums, 200 kg galvanized drums.

Storage: Store in a cool, dry, and well-ventilated area, away from direct sunlight and high temperatures. Shelf life: 24 months.

Safe Handling: Wear appropriate protective equipment (e.g., safety goggles, gloves) during handling. In case of contact with skin or eyes, rinse thoroughly with plenty of water for at least 15 minutes and seek medical attention as needed.

❓ Frequently Asked Questions (FAQ)

Q1:What aluminum alloy machining scenarios is ALI-910 suitable for?

A1:ALI-910 is widely applicable in machining fluid scenarios for aluminum alloys, including cutting, grinding, and lapping. It can also be used as a corrosion inhibitor in formulations for metal cleaners, pretreatment degreasers, cleaning solutions, and forming processes such as cold-rolling emulsions, stamping fluids, and wire-drawing oils.

Q2:What should be considered when formulating ALI-910 with other additives?

A2:ALI-910 exhibits good compatibility with anionic and nonionic surfactants, alkanolamine corrosion inhibitors (e.g., borate esters), and lubricants, allowing flexible formulation. However, bench-scale testing is recommended prior to full formulation to ensure system stability and performance.

Q3:How does ALI-910 perform under high-temperature conditions?

A3:ALI-910 maintains excellent corrosion inhibition performance at elevated temperatures (≤90°C); however, for extended service, temperatures above 80°C are not recommended to ensure optimal results.

📞 Contact Us and Documentation

Should you have any questions regarding the ALI-910 corrosion inhibitor for aluminum alloys, or require detailed documentation such as the Safety Data Sheet (SDS) or application case studies, please do not hesitate to contact us.

Sales Representative Contact:

Tel:18622182445