安徽艾约塔硅油有限公司
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In the world of organosilicon chemistry, the selection of an appropriate crosslinker can make a significant difference in the performance of the final product. IOTA-235, chemically known as phenyltris(dimethylsiloxy)silane with CAS number 18027-45-7, is a well-established crosslinking agent used in various silicone rubber and silicone resin formulations. This product is particularly valued for its compatibility with methyl silicone oil, liquid silicone rubber, phenyl silicone rubber, and phenyl silicone resin. These compatibility characteristics make it a practical choice for use in addition-cure silicone rubber, phenyl silicone rubber, and phenyl silicone resin systems.
IOTA-235 appears as a colorless transparent liquid under normal conditions, which makes it easy to handle and measure in both manual and automated production environments. The specific gravity of the product is 0.945, and its refractive index at 20°C is 1.4412. These physical parameters serve as useful references for incoming material inspection and quality control. The boiling point is recorded at 90°C under a pressure of 2 mmHg, while the flash point (COC) is 87°C. The gas chromatography (GC) purity is not less than 98%, indicating a high level of chemical purity that supports consistent formulation results.
The primary function of IOTA-235 is to serve as a crosslinker in silicone systems. In addition-cure silicone rubber, crosslinking agents react with hydrogen-containing siloxanes through a hydrosilylation reaction, creating a three-dimensional network that gives the material its elastic properties. Due to the presence of phenyl groups and dimethylsiloxy groups in its molecular structure, IOTA-235 blends well with a variety of silicone bases. This ensures uniform distribution within the formulation and consistent crosslink density throughout the cured product. For phenyl silicone rubber and phenyl silicone resin, the product offers reliable performance, helping manufacturers achieve the desired balance of mechanical strength, thermal resistance, and flexibility.
IOTA-235 is available in two packaging options: 15 kg and 200 kg coated iron drums. The smaller package is suitable for research and development work or small-scale production, while the larger drum size caters to factories with continuous manufacturing needs. The coated iron drum construction provides good sealing and protection during transportation. For storage, it is recommended to keep the product in a well-ventilated, cool place, away from direct sunlight and high temperatures. Following these storage guidelines helps maintain the chemical stability of the product over time.
This crosslinker finds application in several areas, including sealants, potting compounds, and coating formulations. Its ability to work effectively in phenyl-containing silicone systems makes it especially useful when formulators need materials with good low-temperature flexibility and compatibility with organic substrates. Whether you are developing a new silicone rubber compound or optimizing an existing formulation, IOTA-235 is a crosslinker worth considering for your project.
