Home    Company News    IOTA 6108 Phenyl POSS (Phenyl Cage-Type Silsesquioxane): High Phenyl Content, Eco-Friendly Halogen-Free Flame Retardant, and Core Additive for High-Performance Silicones

IOTA 6108 Phenyl POSS (Phenyl Cage-Type Silsesquioxane): High Phenyl Content, Eco-Friendly Halogen-Free Flame Retardant, and Core Additive for High-Performance Silicones

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In fields such as high-refractive-index LED encapsulation, high-temperature silicone rubber, specialty silicone oils, and environmentally friendly flame retardancy, material structure design and purity directly determine performance limits. IOTA 6108 Phenyl Cage-Type Silsesquioxane, with its unique cage structure, high phenyl content, and halogen-free eco-friendly characteristics, is an ideal choice for high-end silicone synthesis and specialty additive applications.

Product Introduction

IOTA 6108 is a phenyl cage-type silsesquioxane with high phenyl content and a stable cage molecular structure. It exhibits excellent synergistic flame retardancy, high refractive index, and good transparency, and is widely used in the synthesis of high-performance silicone materials and specialty additive systems.

Technical Specifications

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

Product Features

  • High Phenyl Content: Imparts excellent thermal stability and high refractive index to materials

  • High Refractive Index (1.62): Suitable for high-refractive-index optical encapsulation systems

  • Stable Structure: Cage-type silsesquioxane backbone delivers outstanding heat and weather resistance

  • Good Transparency: Maintains good optical transparency in a variety of materials

  • Halogen-Free & Eco-Friendly: Contains no fluorine, chlorine, bromine, or other halogens – meets green flame retardancy trends

Product Applications

Application Area Specific Use
High & Low Temperature Silicone Rubber Used in the synthesis of high-performance silicone rubber; adjusts phenyl content to improve temperature resistance
High-Refractive-Index LED Encapsulation Synthesizes phenyl silicone resins with refractive index >1.54
High-Temperature Phenyl Silicone Oil Low vapor pressure, excellent thermal stability – suitable for high-temperature conditions
Pharmaceutical & Silicone Intermediates Used in the synthesis of pharmaceutical intermediates and specialty silicone intermediates
Specialty Additives Acts as a synergistic flame retardant additive, powder coating defoamer, and more

Why Choose IOTA 6108?

  • Outstanding Functionality: Combines high phenyl content, high refractive index, and halogen-free flame retardancy – multiple benefits in one product

  • High Purity & Well-Defined Structure: Stable cage molecular structure, good batch-to-batch consistency

  • Strong Process Adaptability: Suitable for synthesis, blending, filling, and various other processing methods

  • Environmentally Compliant: Halogen-free design meets RoHS, REACH, and other environmental requirements

  • Brand Assurance: IOTA offers stable quality and professional technical support

IOTA 6108 – Empowering high-performance silicone materials with heat resistance, high refractive index, and green flame retardancy through a phenyl cage structure.

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