Tristyrylphenol ethoxylate (CAS: 99734-09-5) is prepared by addition polymerization of ethylene oxide using tristyrylphenol as the hydrophobic group. 600-2 (average EO ~9-10, HLB value 11.5) and 600-1 (lower EO number, stronger lipophilicity) achieve synergistic effects through differentiated HLB values, suitable for various complex formulation systems. The product is easily soluble in water and polar organic solvents such as alcohols and ketones, chemically stable, resistant to acids, alkalis, hard water, and metal salts, maintaining activity over a wide pH and electrolyte range.
The multi-benzene ring structure in its molecule endows the product with excellent adsorption and anchoring capabilities, significantly reducing dynamic surface tension (1% aqueous solution approx. 32 mN\/m, 25°C), critical micelle concentration approx. 0.02-0.05 g\/L, with outstanding low-foam characteristics (Source: Guoli Chemical Product Database).
| Application Industry | Process\/Formulation | Functional Role |
|---|---|---|
| Agrochemicals | Emulsifiable concentrate (EC), emulsion in water (EW), microemulsion (ME), suspension concentrate (SC) | Core emulsifying and dispersing component, reducing interfacial tension, enhancing droplet spreading and penetration on leaf surfaces, increasing biological activity |
| Polymer Emulsion Polymerization | Acrylate, styrene-acrylic, vinyl acetate-acrylic emulsion polymerization systems | Emulsification, dispersion, and stabilization, controlling latex particle size and distribution, improving mechanical and chemical stability |
| Textile Printing and Dyeing | Leveling, dispersing, scouring pretreatment processes | Preventing dye spots from disperse dyes, enhancing leveling and color fastness, improving fabric wetting and scouring effects |
| Industrial Cleaning | Metal cleaning, hard surface cleaning formulations (room temperature and heated systems) | Powerful emulsifying soil removal, rapid stripping of oil and grease, acid and alkali resistant, easy rinsing |
| Paper and Leather | Deinking, internal sizing, coating; soaking, degreasing, fatliquoring | Deinking dispersion, oil emulsification and penetration, promoting soft and full leather |
600-2 (HLB ~11.5) has stronger hydrophilicity, suitable for O\/W emulsions and water-based formulations; 600-1 has stronger lipophilicity, suitable for W\/O systems or high-oil-phase formulations. Combining the two can form a denser and more stable interfacial film, producing significant synergistic effects. It is recommended to first conduct compounding tests at a ratio of 1:1 to 3:1, optimizing the ratio based on the specific oil phase type and emulsification requirements.