Since 2026, the silicone industry has seen a sustained recovery in market conditions. Driven by rapid growth in downstream sectors such as photovoltaics and new energy vehicles (NEVs)—where silicone usage per vehicle is now seven to eight times that of traditional internal combustion engine vehicles—Anhui Iota Silicone Oil Co., Ltd. has launched IOTA 1203V. This hydroxy-terminated methyl vinyl silicone oil is helping rubber product manufacturers improve quality and operational efficiency.


In traditional rubber processing, companies typically add hydroxy silicone oil and vinyl silicone oil separately to manage structural control and promote cross-linking; this approach not only raises raw material costs but also risks compromising product quality due to compatibility issues. IOTA 1203V achieves a "dual-effect" solution by incorporating both hydroxy and vinyl active groups into a single molecule: the hydroxy groups interact with silica (white carbon black) to provide structural control, while the vinyl groups participate in cross-linking reactions to reinforce the polymer network. Compared to traditional blending methods, this synergistic approach boosts efficiency by over 30%.


Regarding technical specifications, the product features a viscosity of ≤35 mm²/s, a hydroxy content of ≥6.0%, a vinyl content of 6.5–7.5 mol%, and a moisture content of ≤0.35%. Feedback from a tire manufacturer indicates that using the product reduced Mooney viscosity fluctuations in the rubber compound by 15% and increased tear strength by 8%. The vinyl content can also be customized to meet specific user requirements.


Industry experts believe that this functional silicone intermediate—combining structural control with cross-linking capabilities—is setting a new benchmark for rubber additives, marking a shift from single-function products to highly efficient, synergistic solutions.
Hydroxy-terminated methyl vinyl silicone oil, IOTA 1203V, dual-effect, structural control, cross-linking reaction