On October 21, 2025, Qujing, Yunnan Province - Yunnan Energy Investment Group's Yunnan Energy Investment Silicon Material Technology Development Co., Ltd. (hereinafter referred to as "Yunneng Silicon Material") announced that its independently developed low ring ethylene based silicone oil has achieved large-scale production, with an annual production capacity of 5000 tons, and has been fully put into the market. This breakthrough not only fills the technological gap in the domestic high-end silicone oil field, but also injects new momentum into the performance improvement and market expansion of organic silicon products such as ethyl silicone oil through the synergistic effect of the industrial chain.


Technological breakthrough: Overcoming the problem of low ring structure and meeting the dual requirements of environmental protection and performance
Traditional vinyl silicone oil requires secondary vulcanization during production due to its high ring content, and volatile substances may affect the stability of downstream products, making it difficult to meet environmental regulations such as REACH and RoHS in the European Union. The R&D team of Yunneng Silicon Materials spent 6 months successfully achieving stable production of low ring vinyl silicone oil through key technological breakthroughs such as catalyst screening and polymerization process optimization. This product has automatic and precise control throughout the entire process, reducing volatile organic compounds (VOCs) content by more than 60%. It also has characteristics such as low viscosity and high temperature resistance (-60 ℃ to 200 ℃), and can be directly applied in fields such as electronic packaging, biomedical materials, and precision manufacturing.


Industrial chain collaboration: Upgrading the performance of ethyl silicone oil and expanding high-end application scenarios
Ethyl silicone oil, as an important branch of organosilicon materials, is widely used in industrial lubricants, cosmetic additives, and medical device coatings due to its excellent lubricity, waterproofness, and chemical stability. The low ring technology of Yunneng silicon material provides a new path for the modification of ethyl silicone oil: by introducing vinyl groups, the compatibility of ethyl silicone oil with polymer materials can be significantly improved, and its gel point in low temperature environment can be reduced (the experiment shows that the gel point is reduced by 70 ℃), thus expanding to extreme environmental applications such as aerospace and polar scientific research equipment. For example, in a certain Antarctic scientific research project, after using modified ethyl silicone oil, the equipment maintained its lubrication performance at -80 ℃, while traditional silicone oil solidified at -50 ℃.


Market impact: High end strategy leads industry transformation
Yunneng Silicon's low ring products have passed international certification and signed long-term supply agreements with multiple Fortune 500 companies worldwide. According to industry analysis, the global market size of ethyl silicone oil is expected to reach 4 billion US dollars by 2025, with high-end modified products accounting for over 30%. This technological breakthrough not only enhances the market competitiveness of Yunneng silicone materials, but also promotes the transformation of the domestic silicone oil industry from "scale expansion" to "quality priority". The company plans to invest 1 billion yuan in research and development funds in the next three years to further develop special ethyl silicone oil with ultra-low temperature resistance and high transmittance, and seize emerging markets such as new energy and biomedicine.