On December 15, 2025, Beijing - At the recent "2025 Organosilicon Fine Chemicals Technology Exchange Conference", Yu Pengfei, the business unit manager of Xinyuan Chemical (Shandong) Co., Ltd., disclosed the latest achievements of his team in the field of ultra-low temperature resistant ethyl silicone oil. The team successfully synthesized ethyl silicone oil with a glass transition temperature (Tg) below -100 ℃ through molecular structure design optimization, setting a new industry record. The related technology has applied for national invention patents.


Breakthrough in Low Temperature Performance: Unlocking Polar and Deep Space Applications
Traditional silicone oil is prone to gel when temperature is below -50 ℃, which leads to difficulty in equipment startup or lubrication failure. The "ultra-low temperature ethyl silicone oil" developed by Xinyuan Chemical reduces intermolecular forces by introducing long-chain alkyl groups, allowing it to maintain fluidity at -120 ℃. This material has been tested by the polar research equipment of the China Polar Research Center and will be applied in scenarios such as hydraulic systems in Antarctic research stations and lubrication components for Mars probes in the future.


Environmental Upgrade: Responding to Global Carbon Reduction Goals
In response to the strict restrictions on volatile compounds in silicone oil under the EU REACH regulation, Jiaxing United Chemical Co., Ltd. has launched a patented technology called "Ethylene based Silicone Oil Purification and Low Molecular Weight Device". Through dynamic heat dissipation fins and intelligent temperature control system, the purification efficiency is increased by 40%, and the volatile organic compounds (VOCs) content of the product is reduced to below 0.1%. This technology has been applied in the production of sealant for BYD new energy vehicle battery packs, helping to reduce the amount of silicone oil used in bicycles by 30% and carbon emissions by 15%.


Industry voice: Innovation drives high-end transformation
Experts from the China Fluorosilicon Organic Materials Industry Association said, "Ethyl silicone oil is transitioning from 'universal' to 'functional', and companies need to focus on three directions: first, customizing products through molecular design (such as medical grade and food grade); second, developing green synthesis processes (such as bio based catalysts); third, building a digital supply chain to achieve full process traceability from raw materials to terminals


Conclusion: From polar scientific research to the new energy revolution, ethyl silicone oil is using technology as a spear to break through the physical limits and environmental boundaries, becoming a representative of China's high-end manufacturing industry's "hidden champion". With the continuous increase in research and development investment, this "chemical star" is expected to occupy a more central position in the global value chain.