IOTA silicone
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Here is the precise English translation of the technical specifications for Phenyl Silicone Resin:
Phenyl Silicone Resin is a specialized silicone material featuring phenyl groups (-C₆H₅) incorporated into its siloxane backbone. It combines the weather resistance of silicones with the heat resistance, high refractive index, and flexibility conferred by phenyl groups, outperforming methyl silicone resins in extreme environments. Below is an analysis of its core properties and applications:
| Property | Mechanism | Improvement vs. Methyl Silicone Resin |
|---|---|---|
| High-Temp Resistance | Phenyl groups enhance molecular chain rigidity (decomposition temp > 450°C) | Thermal stability ↑40% |
| High Refractive Index | Conjugated phenyl system enhances light refraction (n²⁵D = 1.50–1.55) | Transmittance ↑15% (visible spectrum) |
| Low-Temp Flexibility | Phenyl groups inhibit molecular chain crystallization (remains elastic at -80°C) | Brittleness temperature ↓60°C |
| Radiation Resistance | Phenyl rings absorb high-energy particles (resists γ-rays > 500 kGy) | Post-irradiation strength retention ↑90% |
