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In the synthesis of high-refractive-index LED encapsulation adhesives, high-temperature phenyl silicone oils, and optical-grade silicone resins, the refractive index, transparency, and thermal stability of the material directly determine device light extraction efficiency and service life. IOTA 6108 Phenyl Cage-Type Silsesquioxane, with its unique phenyl cage structure, high refractive index of 1.62, and excellent thermal stability, is an ideal modifier and intermediate for the synthesis of LED encapsulation silicones and high-temperature optical materials.
IOTA 6108 is a phenyl cage-type silsesquioxane with high phenyl content and a stable cage molecular structure. It exhibits excellent synergistic flame retardancy, a high refractive index, and good transparency, and is widely used in the synthesis of high-performance silicone materials and specialty additive systems.
| Parameter | Value |
|---|---|
| Molecular Formula | ((ph)₈Si₄O₄)ₙ |
| Appearance | White powder |
| Density (g/cm³) | 1.185 ± 0.010 |
| Molecular Weight (Mn) | 800–2000 |
| Refractive Index | 1.620 ± 0.005 |
| Softening Point (°C) | 200 |
| Feature | Description |
|---|---|
| High refractive index (1.62) | Significantly increases the refractive index of encapsulation materials – matches LED chips – improves light extraction efficiency |
| High phenyl content | Imparts excellent thermal stability and high refractive index properties to materials |
| Stable structure | Cage-type silsesquioxane backbone – outstanding heat and weather resistance |
| Good transparency | Maintains good optical transparency in a variety of materials – does not affect light output |
| Application Area | Specific Use | Core Value |
|---|---|---|
| High-refractive-index LED encapsulation adhesives | Synthesis of phenyl silicone resins with refractive index >1.54 | Improves LED light extraction efficiency – enhances heat aging resistance |
| High-temperature phenyl silicone oils | Synthesis of high-phenyl-content silicone oils | Low vapor pressure, excellent thermal stability – suitable for high-temperature conditions |
| High & low temperature silicone rubber | Adjusts phenyl content of silicone rubber | Improves temperature resistance and mechanical properties of silicone rubber |
IOTA 6108 – High refractive index, high transparency, cage structure empowering – lighting up higher performance for LED encapsulation and optical materials.
