(August 3, 2026) As a high-performance core silicone material, phenyl silicone oil continues to benefit from demand from computing power infrastructure, optoelectronic displays, new energy vehicles, and aerospace sectors due to its excellent resistance to high and low temperatures, high refractive index, radiation resistance, and low volatility. In the second half of 2026, domestic phenyl silicone oil industry will advance in tandem with technological iteration and capacity upgrades, further accelerating the import substitution process for high-end products.

Phenyl silicone oil breaks through the performance ceiling of ordinary dimethyl silicone oil by introducing phenyl groups into the siloxane main chain, enabling stable operation across a wide temperature range of -70°C~300°C, while also offering excellent light transmission, insulation, and anti-aging capabilities. According to industry research data, the domestic phenyl silicone oil market size will steadily grow in 2026, with demand for electronic-grade, optical-grade, and high-end phenyl silicone oil for liquid cooling significantly outpacing that of general-purpose models.

Currently, AI computing power immersion liquid cooling has become the core growth track. High-purity methylphenyl silicone oil, with its electrical insulation, thermal stability, and non-flammability, is gradually being widely applied in large intelligent computing centers and server immersion heat dissipation scenarios, replacing traditional cooling media and effectively reducing data center PUE values. Meanwhile, Mini/Micro LED optical packaging and automotive power semiconductor IGBT insulation filling materials continue to see rising demand for high refractive index, low-ion impurity phenyl silicone oil.

In the new energy sector, phenyl silicone oil is widely used in power battery sealing systems, insulating additives for high-voltage wiring harnesses, and high-temperature resistant thermal conductivity substrates for electronic control units; In aerospace, relying on outstanding radiation resistance, it is used in spacecraft damping fluids and high-temperature lubrication seals for aircraft; In the high-end cosmetics industry, high-purity, low-cyclic phenyl silicone oil is used as a film-forming additive in makeup and skincare formulas, creating a lightweight, high-gloss skin feel.

For a long time, the core market for ultra-high purity, controllable phenyl content high-end phenyl silicone oil has been dominated by overseas companies. In the past two years, domestic silicone companies have collaborated with university research institutions to overcome key processes such as monomer purification, controlled polymerization, multi-stage molecular distillation, and trace impurity control. Currently, domestic high-end phenyl silicone oil continues to approach international first-tier standards in thermal stability, viscosity stability, and volatile content indicators, with batch consistency being continuously optimized. More and more optoelectronics and new energy companies are initiating certification work for domestic materials.

Industry analysts say that the next phase of the phenyl silicone oil industry will follow three major development directions:
First, refined product layering. Ultra-high purity customized phenyl silicone oil for AI liquid cooling and advanced optoelectronic packaging has become a key R&D focus, strictly controlling metal ions and cyclic siloxane impurities;
Second, upgrading green manufacturing. The industry is accelerating the promotion of low-catalytic residue and closed-loop recycling synthesis processes to meet increasingly stringent domestic VOC environmental control standards;
Third, upstream and downstream collaborative R&D. Silicone manufacturers are working closely with downstream liquid cooling equipment and optoelectronic packaging material companies, adjusting phenyl content, viscosity, and refractive index indicators in a directional manner according to terminal operating conditions.

Industry forecasts indicate that with the continued release of domestic high-end production capacity and the expansion of emerging downstream industries, the self-sufficiency rate of domestic high-end phenyl silicone oil is expected to further improve from 2026 to 2028. As a strategic specialty organosilicon material, phenyl silicone oil will continue to empower the independent and controllable high-end manufacturing industry chain, providing key material support for computing power networks, new energy, and aerospace industries.