1. Basic Composition and Physical and Chemical Specifications
IOTA 279 epoxy-terminated phenyl trisiloxane, commonly known as epoxy phenyl silicone oil, is a solvent-free organic silicon functional modification additive. Its core component is bis-glycidyl terminated phenyl trisiloxane with a pure molecular structure and no extra solvent or impurity components. The solvent-free formula avoids solvent volatilization and residue during processing, preventing damage to the inherent basic properties of polymer resins and enabling effective performance optimization while retaining the original material characteristics. The product appears as a colorless to pale yellow transparent liquid with uniform texture and no precipitation, suitable for precision coating, pouring, injection molding and other fine processing technologies. Under standard room temperature conditions, it maintains stable physical and chemical parameters. The epoxy equivalent ranges from 260 to 340g/equ, matching the curing ratio requirements of most mainstream resins. It has a refractive index of 1.474 at 25℃ and a viscosity of 15-30cst, delivering moderate fluidity and excellent compatibility with epoxy resin, polyurethane and polycarbonate systems, eliminating the need for additional dilution solvents and simplifying production processes.
2. Reaction Modification Mechanism for Resin Systems
Different from traditional physical blending additives that only attach to resin surfaces, IOTA 279 is a reactive modifier that fully participates in the curing and polymerization processes of resins to optimize material structures at the molecular level. When applied to epoxy resin systems, it serves as an effective functional component to adjust the cohesive energy of resin molecules, improving the inherent high rigidity and insufficient toughness of cured epoxy products. This optimization enhances the flexibility of epoxy resin finished products and reduces structural damage such as cracking and embrittlement under external force or temperature fluctuation. For polyurethane and polycarbonate materials, the product forms stable chemical bonds with resin molecular chains through targeted chemical reactions, making up for the performance limitations of single polymer materials and improving the overall structural stability of composite materials.
3. Multi-dimensional Comprehensive Performance Improvement
Benefiting from the composite structure of organic silicon and epoxy groups, IOTA 279 optimizes finished product quality from mechanical, environmental and special functional dimensions. In terms of mechanical properties, it adjusts the intermolecular force of resins to enhance material flexibility and deformation resistance, enabling finished products to adapt to complex stress environments. In terms of environmental adaptability, it relieves structural damage caused by alternating high and low temperatures, stabilizes the size and performance of materials under temperature changes, and improves water resistance and weather resistance to extend service life. In terms of special functions, it endows epoxy resin systems with stable electrical insulation properties to meet insulation protection needs in electronic and electrical fields, and improves material resistance to atomic oxygen erosion for special industrial and precision working conditions.
4. Universal and Convenient Application Processes
IOTA 279 is equipped with targeted and simple application processes for three mainstream resin systems, supporting large-scale industrial production. For epoxy resin modification, users can directly add the product to the resin prepolymer, mix evenly, and complete synchronous curing and molding following the original process, realizing uniform and stable modification effects. For polyurethane modification, it can participate in molecular reactions through amine chain extension or react with isocyanate groups via acid ring-opening to integrate into polyurethane structures. For polycarbonate modification, it supports two flexible application modes: participating in copolymerization during raw material synthesis to optimize molecular structures fundamentally, or direct addition during post-processing molding to adapt to different enterprise production processes, with strong compatibility and operability.
IOTA 279 Epoxy-terminated phenyltrisiloxane -IOTA
