Defoaming performance and industrial application of fluorosilicone oil
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Fluorosilicone oil has excellent defoaming performance and wide industrial application value due to its unique chemical structure (trifluoropropyl group introduced on silicon atom), which is analyzed as follows:
1. Defoaming performance advantage
Dual defoaming mechanism
Fast foam breaking: extremely low surface tension (as low as 20mN/m) allows it to quickly penetrate the foam membrane wall and destroy the foam structure.
Persistent foam suppression: hydrophobic and oleophobic properties (-CF₃ group) prevent bubble regeneration and extend the foam suppression time.
High efficiency and economy
Only 1ppm (one millionth) of addition is required to significantly defoam, avoiding excessive effects on system performance.
Environmental adaptability
Wide temperature range (-40℃~240℃), suitable for high temperature processing environment (such as resin synthesis, high temperature spraying).
Oil-resistant, solvent-resistant and chemically inert, it can play a stable role in fuel, strong acid and strong alkali systems.
2. Core industrial application areas
- Paint and ink industry
Oil-based paint defoaming: solve the problem of microbubbles in the spraying process, avoid pinholes and shrinkage holes in the paint film, and improve the surface finish.
Water-based system compatibility: fluorosilicone oil containing terminal hydroxyl groups can be adapted to water-based paints to suppress the foam generated by production stirring.
- Petroleum and chemical industry
Oilfield mining: used for heavy oil treatment, drilling fluid defoaming, and resistance to hydrocarbon solvent corrosion.
Solvent cleaning agent: efficient defoaming in solvent-based detergents to prevent foam from interfering with the cleaning process.
-Textile and printing and dyeing
Dyeing process defoaming: added to the dyeing tank to control foam generation and ensure uniform coloring of the fabric.
Finishing auxiliaries: has both defoaming and fabric waterproofing and anti-fouling functions.
-Food and biological fermentation
Fermentation tank defoaming: physiological inertness meets food contact standards and suppresses foam overflow during the fermentation process.
-Pharmaceuticals and Cosmetics
Drug solution production: Eliminate foam in the extraction and concentration process to ensure the purity of the drug.
Skin care product formulation: As a defoamer and skin feel improver, it provides a silky texture.
3. Performance optimization and precautions
Compatibility improvement
Modify fluorosilicone oil (such as the core chemical Hyperlev series) with methyl silicone oil to improve its dispersibility in multi-component systems and reduce the risk of shrinkage.
Restrictions on use
Compatibility must be verified in highly polar solvents to avoid stratification; fluorine-containing products such as tire maintenance need to be vigilant about potential corrosion to rubber/metal.
Application cases
Lubrication of record drive motors: Fluorosilicone oil-based lubricants can withstand high speeds of 1.4 million revolutions per minute and continuously withstand high temperatures of 121°C without decomposition.
Aircraft hydraulic system: As an extreme pressure grease base oil, it ensures sealing under extreme working conditions.
Through the precise design of chemical structure and performance, fluorosilicone oil has become the core material for cross-domain high-efficiency defoaming solutions, especially in high-demand industrial scenarios.