How to use high-quality polyether F-6?

High-quality polyether F-6 is a versatile nonionic surfactant, and its usage methods vary depending on the application scenario. It is mainly used in three ways: direct addition, addition after pre-dilution, or compounding.

Detailed Explanation

High-quality polyether F-6 (polyoxyethylene castor oil, HLB value 12~14) has good water solubility and excellent defoaming and foam-inhibiting performance. According to data from Guoli Chemical, the effective content of this product is ≥99%, and it appears as a colorless to light yellow transparent liquid that can flow and disperse at room temperature. Depending on the specific process requirements, it can be used in three basic methods: direct addition, addition after pre-dilution, or as a compounding component.

In defoamer applications, high-quality polyether F-6 is typically used as the core defoaming active component. The recommended dosage is 0.01% to 0.5% (by weight) of the total system, with the specific dosage determined by experiments based on the foam level of the foaming system. It can be added directly or pre-diluted with an appropriate amount of water before being added to the foaming system. In dynamic foaming environments such as fermentation, paper pulping, and textile printing and dyeing, it can quickly break foam and provide long-lasting foam suppression. In industrial low-foam cleaning agent formulations, the recommended addition amount is 2% to 10% of the total formula. When compounded with anionic or amphoteric surfactants, it can effectively reduce overall foam height while maintaining wetting and penetration capabilities.

In metalworking fluids (cutting fluids, grinding fluids), the recommended dosage is 5% to 20% of the concentrate. After compounding with other additives as a lubricating and cooling base component, it is diluted with working fluid to the use concentration (usually 3% to 10% dilution). In textile pretreatment processes, when used as a penetrating degreasing agent, the recommended working fluid concentration is 0.5 to 3 g\/L (bath ratio 1:10 to 1:20), used in combination with alkali agents and hydrogen peroxide. In the water treatment field, as a dispersant and scale inhibitor, the recommended dosage is 5 to 50 mg\/L (based on the amount of treated water), which can be continuously added via a metering pump.

Technical Parameters

Application Suggestions

• Pre-dilution Technique: It can be diluted with water at any ratio at room temperature. It is recommended to first dissolve it in 40~60℃ warm water with stirring before adding it to the main system, which helps accelerate uniform dispersion, especially suitable for low-temperature conditions.
• Defoamer Preparation: It can be used alone or compounded with hydrophobic silica, silicone defoamers, etc., to form a composite defoamer, enhancing foam suppression durability. For continuous addition, a metering pump should be used to precisely control the dosage to avoid excessive addition that may cause excessive emulsification of the system.
• Cleaning Agent Compounding: When compounded with nonionic or anionic surfactants (such as AES, LAS, AEO-9, etc.), it is recommended to first dissolve each component separately before mixing to avoid gelation caused by differences in HLB values.
• Metalworking Fluids: When preparing the concentrate, slowly add polyether F-6 to the base oil under stirring conditions, then add other additives such as rust inhibitors and extreme pressure agents, and finally add water to adjust to the required concentration, ensuring emulsion stability.
• Textile Pretreatment: It can be used in combination with nonionic penetrant JFC, scouring agents, etc., to improve fabric wetting speed and oil removal effect. The working fluid temperature is recommended to be controlled at 60~90℃ for optimal results.

Precautions

• This product is hygroscopic. After opening, use it as soon as possible. Any unused portion should be sealed and stored to avoid moisture absorption affecting the active content.
• Storage temperature should be controlled between 5℃ and 35℃ to prevent freezing (if frozen, it can still be used after thawing and stirring evenly, but performance consistency may be affected).
• Avoid direct mixing and storage with strong oxidizers, strong acids, and strong alkalis; when compounding with cationic auxiliaries, a compatibility test is recommended in advance.
• During operation, it is recommended to wear protective gloves and goggles. Although this product has low toxicity and no irritation, prolonged direct contact may cause dry skin.
• The above dosage recommendations are general reference ranges. The specific optimal dosage should be determined through actual process experiments, as different foaming systems, water hardness, and process conditions have significant effects on performance.