Solubilizer S-15 (PEG-40 Hydrogenated Castor Oil) is a nonionic surfactant derived from natural hydrogenated castor oil. With its excellent solubilizing and emulsifying capabilities, it plays a key process role in multiple industries by uniformly dispersing oil-soluble or poorly soluble substances in aqueous systems. Its unique molecular structure enables stable chemical performance across a wide pH range and temperature conditions, making it an important functional additive for formulating transparent water-based products and highly stable emulsions.
In the agrochemical industry, S-15 is mainly used in the preparation of emulsifiable concentrates (EC), oil-in-water emulsions (EW), and microemulsions (ME). It can efficiently solubilize pesticide active ingredients and promote the formation of stable and transparent microemulsion systems, significantly enhancing the dispersion and dilution stability of formulations in hard water. In the personal care and daily chemical field, this product is an indispensable solubilizer for fragrances and essential oils in transparent water-based products such as shampoos, body washes, and toners, ensuring a clear and transparent appearance and preventing turbidity and layering caused by oil-water separation.
Furthermore, in industrial hard surface cleaning and textile printing and dyeing processes, S-15 plays a dual role of solubilizing and emulsifying oil stains and dispersing dyes for level dyeing, effectively improving cleaning efficiency and dyeing quality. The product also features low aquatic toxicity, easy biodegradability, and skin non-irritancy, meeting the standards of modern green chemicals.
| Industry Sector | Application Process / Product Type | Process Function |
|---|---|---|
| Pesticide Formulations | Emulsifiable Concentrates (EC), Oil-in-Water Emulsions (EW), Microemulsions (ME) | Solubilize pesticide active ingredients, promote stable and transparent microemulsion system formation, enhance dispersion and dilution stability in hard water, and improve efficacy |
| Personal Care and Daily Chemicals | Transparent Shampoos, Body Washes, Toners, Water-based Cosmetics | Solubilize fragrances, natural essential oils, and lipid-soluble skin care actives, maintain clear and transparent product appearance, prevent turbidity and layering |
| Industrial Cleaning | Hard Surface Cleaners, Vehicle and Machinery Cleaners | Solubilize and emulsify heavy oil stains, mineral oils, and hydrophobic soils, improve penetration, lift-off, and anti-redeposition performance |
| Textile Printing and Dyeing | Leveling Agents, Dispersing Aids, Pretreatment Aids | Solubilize and disperse dyes and functional finishing agents, promote uniform dye adsorption, prevent color spots, and improve color fastness |
In formulation design, solubilizer S-15 can be flexibly compounded with anionic, cationic, and other nonionic surfactants. It is recommended to optimize the dosage based on the HLB value requirements of the target system and the properties of the solubilizate. For fragrance and essential oil solubilization systems, a common process is to premix S-15 with the solubilizate in a certain ratio before slowly adding it to the water phase, to achieve optimal transparency and stability. In pesticide microemulsion formulations, it is advisable to adjust the dosage considering factors such as water hardness and storage temperature to ensure consistent quality during long-term storage.