Alcohol Hydroxy Single-Ended Long-Chain Alkyl Silicone Oil IOTA 2861 is a silicone oligomer with hydroxyl functional groups, which stands out in the fields of resin synthesis and coating modification due to its excellent performance and stable chemical properties. With an average molecular weight of 1300 and a hydroxyl value of 40.5 (KOHmg/g), it exhibits high reactivity with -NCO and -COOH groups, laying a solid foundation for targeted material modification.
In terms of key specifications, IOTA 2861 maintains outstanding quality stability: it appears as a colorless to slightly yellow transparent liquid, with a hydroxyl value content accurately controlled at 0.50±0.10% and a solid content of not less than 98.00%, ensuring product purity and reliability in use. At 25°C, its viscosity ranges from 200 to 800 cst, and the refractive index is stable at 1.4300±0.0050, endowing it with excellent processing adaptability to integrate seamlessly into various systems.
The product boasts remarkable functional advantages: it delivers excellent anti-graffiti performance, effectively resisting the adhesion of contaminants such as oil-based pens and facilitating easy surface cleaning; it significantly enhances the smooth feel of resins or coatings while providing superior anti-blocking properties, preventing material adhesion during processing and storage. Additionally, its good compatibility enables perfect integration with multiple systems without compatibility concerns, and its low surface tension promotes coating leveling and flow, reducing defects like sagging and cratering to optimize the appearance and performance of finished products.
IOTA 2861 has a wide range of applications: it is suitable for amino baking varnishes and two-component PU coatings, providing multi-functional protection for coatings; it can be used in the synthesis of silicone-modified polyurethane resins and emulsions to improve their comprehensive performance; it is also compatible with addition-molding silicone rubber products and inks, expanding the application boundaries of silicone materials. The usage method is simple and efficient: when synthesizing polyurethane resins and emulsions, it can act as a blocking agent when added in the latter stage; for amino baking varnishes, adding 0.5-2.0% and dispersing it evenly in the resin can achieve ideal results.