Product Overview

Epoxy-terminated phenyl trisiloxane IOTA 279, also known as epoxy phenyl silicone oil, is a high-performance organosilicon compound. With its unique chemical structure and outstanding properties, it has demonstrated broad application prospects in the fields of epoxy resins, polyurethanes, polycarbonates, and other polymer materials.

Product Characteristics

IOTA 279 can serve as a key component of epoxy resins, significantly enhancing their flexibility and electrical insulation properties. It also acts as a reactive modifier for polyurethanes and polycarbonates, improving their cohesive energy and mechanical properties. Additionally, IOTA 279 imparts excellent high- and low-temperature performance to materials, ensuring stability under extreme temperature conditions.

Technical Specifications

IOTA 279 appears as a colorless to light yellow transparent liquid. Its epoxy equivalent weight ranges from 260 to 340 g/equ, with a refractive index (at 25°C) of 1.474 and a viscosity between 15 and 30 cst. These precise technical specifications ensure the stability and reliability of IOTA 279 in various applications.

Main Components and Applications

The primary component of IOTA 279 is phenyl trisiloxane with glycidyl groups at both ends, free from any solvents. As a toughening and water-repellent component, it participates in curing or polymerization reactions, significantly improving the mechanical and physical properties of finished products. Whether used in epoxy resins, polyurethanes, or polycarbonates, IOTA 279 imparts outstanding resistance to high- and low-temperature shock, water resistance, weather resistance, and electrical insulation properties.

Usage Methods

For epoxy resin modification, simply add IOTA 279 directly to the prepolymer and cure together. In polyurethane modification, IOTA 279 can be used in conjunction with amine chain extenders or react with isocyanate groups through acid ring-opening. For polycarbonate modification, IOTA 279 can either participate directly in copolymerization or be added during molding processing, offering flexibility and convenience.