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Against the backdrop of the continuous advancement of global "carbon neutrality" goals and the increasingly stringent environmental management and control requirements, the global phenyl silicone oil industry is undergoing a full-chain green manufacturing system upgrade that has never been seen before. For a long time in the past, as a niche special organosilicon product, the environmental management standards of the phenyl silicone oil industry were far lower than those of the basic methyl silicone oil category. A large number of traditional production processes had problems such as high energy consumption, low solvent recovery rate, and large discharge of "three wastes". With the global "Advanced Organosilicon Functional Materials Industrialization Action Plan (2025-2027)" officially listing phenyl silicone oil as a key auxiliary material stuck point, and clearly requiring to accelerate the green and high-end domestic substitution process, the entire phenyl silicone oil industry is comprehensively eliminating backward production capacity, building a complete low-carbon, circular and environmentally friendly new production system, pushing the industry to fully enter a new stage of high-quality development.
In 2025, global environmental governance entered a new stage of in-depth promotion. A series of new regulatory policies, including the EU RoHS 3.0 Directive, the updated REACH Regulation Annex XVII restriction list, the U.S. EPA new volatile organic compound emission standard for the chemical industry, and China's "Advanced Organosilicon Functional Materials Industrialization Action Plan (2025-2027)", have jointly built a new global environmental management system for the organosilicon material industry. For the phenyl silicone oil industry, these new regulations clearly put forward clear goals: by 2027, the penetration rate of core green manufacturing processes in the global phenyl silicone oil field will reach more than 80%, the energy consumption per unit product will drop by 25% compared with 2024, the solvent recovery rate will increase to more than 99%, and 3 to 5 world-class green factories will be cultivated to achieve full independent controllability of high-end electronic-grade phenyl silicone oil.
This top-level policy design has directly ignited the green transformation wave of the entire industry. Before that, a large number of traditional production processes of small and medium-sized phenyl silicone oil manufacturers in the world generally had problems such as low hydrolysis reaction conversion rate, a large amount of silicon-containing acidic wastewater that was difficult to treat, and direct discharge of organic solvents. Not only was the energy consumption in the production process staying at a high level, but the batch stability of products was also difficult to guarantee, which completely failed to meet the green procurement requirements of downstream high-end manufacturing fields. With the accelerated construction of the green manufacturing system under the global "carbon neutrality" goal, the tightening of VOCs emission standards and the establishment of the carbon footprint traceability system, the environmental operation cost of backward production capacities has continued to rise. In 2026, the environmental operation cost of production lines that meet the latest environmental protection standards accounts for about 8% to 10% of the total cost, which directly forces a large number of backward production capacities that do not meet environmental protection standards to be quickly eliminated from the market.
At the same time, the green procurement requirements of the downstream high-end market are also reversely promoting the industrial upgrading. When procuring phenyl silicone oil products, leading customers in new energy, semiconductor, aerospace and other fields have begun to require suppliers to provide complete ISO 14067 product carbon footprint verification statements. Enterprises with green factory certification and low-carbon production capabilities can obtain significant green premiums in the international market, and their product market recognition and order delivery priority have been greatly improved. This dual drive of policy and market is completely reshaping the competition logic of the phenyl silicone oil industry. The past development model of relying on low cost and high emission to achieve profit has completely come to an end, and the advanced production capacity with low-carbon and environmentally friendly characteristics is rapidly occupying the dominant position in the market.
According to public industry statistics, the capacity utilization rate of the global phenyl silicone oil industry has climbed to 82% in 2026, and the combined market share of the top five manufacturers in the industry exceeds 60%. The industry concentration CR5 has climbed to 62%, indicating that the market is accelerating its evolution from the past decentralized competition to an oligopolistic pattern. The core driving force behind this round of industrial concentration improvement is exactly the production capacity reshuffle brought about by the green manufacturing system upgrade. A large number of small and medium-sized production capacities that do not meet environmental protection standards have been eliminated by the market, and leading enterprises with complete green production systems are rapidly expanding their market share, promoting the development quality of the entire industry to a new level.
In recent years, the global phenyl silicone oil industry has achieved a series of key technological breakthroughs in the field of green manufacturing, completely solving the long-standing pain points of traditional production processes such as high energy consumption, high emission and low atomic utilization, and building a full-closed-loop green production technology system.
The first breakthrough is the large-scale industrial application of the continuous micro-reaction co-hydrolysis process. The hydrolysis link in the traditional phenyl silicone oil production adopts the intermittent reaction kettle process, which directly puts phenyl chlorosilane and dimethyldichlorosilane into a large amount of water for hydrolysis reaction. Not only is the reaction process violently exothermic with extremely high energy consumption, but the hydrogen chloride generated by hydrolysis cannot be efficiently recovered, resulting in a large amount of acidic wastewater that is difficult to treat, and the atomic utilization rate is less than 70%. The new generation of continuous micro-reaction co-hydrolysis process strictly controls the reaction temperature in the low temperature range of 0~10℃. Through the precise mass and heat transfer control of the microchannel reactor, the chlorosilane monomer and a quantitative amount of deionized water complete the highly efficient and controllable hydrolysis reaction in the microchannel. The reaction conversion rate is increased to more than 99%, and the hydrogen chloride gas generated by hydrolysis is directly recovered through a closed pipeline, and then refined and converted into high-purity hydrochloric acid for external sales, fully realizing the closed-loop recovery of chlorine elements. The atomic utilization rate of this process is increased to more than 95%, and the discharge of acidic wastewater is reduced by more than 90% compared with the traditional process, greatly reducing the pressure of subsequent environmental treatment.
The second breakthrough is the comprehensive popularization of the new solvent-free catalytic equilibrium polymerization process. In order to reduce the viscosity of the system and improve the mass transfer efficiency, the traditional polymerization process needs to add a large amount of organic solvents such as toluene as the reaction medium. The subsequent process of distilling and removing the solvent not only consumes extremely high energy, but also produces a large amount of VOCs emissions. The new generation of solvent-free catalytic equilibrium polymerization process uses high-activity solid superacid as the polymerization catalyst, does not need to add any organic solvents at all, and directly allows the siloxane linear body obtained by hydrolysis to carry out equilibrium polymerization reaction in a closed reaction kettle. The whole reaction process does not involve organic solvents, which eliminates the hidden danger of VOCs emission from the source. At the same time, the catalyst can be completely recovered and reused through the filtration process, the catalyst consumption is reduced by more than 90% compared with the traditional process, and the energy consumption in the production process is reduced by more than 35% compared with the traditional solvent process.
The third breakthrough is the full supporting of the waste heat cascade utilization and energy recovery system. Multiple processes in the production of phenyl silicone oil, such as hydrolysis, polymerization and molecular distillation, require temperature control, and the temperature requirements of different processes vary greatly. In the traditional production process, each process is equipped with independent heating and cooling systems, energy cannot be recycled, and the overall energy utilization efficiency is extremely low. The new generation of green production line adopts the whole-process waste heat cascade utilization system, which transports the high-temperature waste heat generated in the molecular distillation link to the preheating process of the hydrolysis reaction and the preheating process of products through the heat transfer oil circulation pipe network, realizing the energy complementation between different processes. At the same time, the production line is equipped with a photovoltaic power station and a waste heat recovery power generation system, the proportion of green electricity used in the production process exceeds 40%, which greatly reduces the carbon emission per unit product.
The fourth breakthrough is the operation of the full closed-loop recycling system of by-products. The traditional phenyl silicone oil production process will produce a large number of low-boiling siloxane by-products and rectification residues. In the past, most of these by-products were incinerated as hazardous waste, which not only caused waste of resources, but also brought environmental pressure. In the new generation of green production system, through the by-product catalytic rearrangement technology, all the low-molecular siloxane by-products produced by rectification are fully recycled, and converted back into polymer-grade cyclic siloxane monomers through the catalytic rearrangement reaction, and returned to the main production process for the synthesis of phenyl silicone oil. The comprehensive recovery rate of by-products of this technology reaches more than 98%, which almost realizes 100% closed-loop recycling of organosilicon materials, and completely solves the industry pain point of difficult disposal of by-products in traditional processes.
With the comprehensive upgrade of the green manufacturing system, the global phenyl silicone oil industry has built a complete low-carbon product system. Different series of green phenyl silicone oil products are being widely used in the downstream high-end manufacturing field, providing support for the green upgrading of the entire downstream industrial chain.
Low-volatility electronic-grade green phenyl silicone oil is the core product with the fastest growing market at present. The total residual amount of low-molecular cyclic bodies of this series of products produced by the full-process green process is less than 100ppm, the thermal weight loss rate at 250℃ for 24 hours is less than 0.3%, the content of metal ion impurities is all controlled below 10ppb, and the full life cycle carbon footprint of the product is 42% lower than that of products produced by traditional processes. This product is widely used in thermal interface materials for third-generation semiconductor power devices. It can not only ensure that power devices operate stably for a long time in high temperature environments above 200℃, but also help downstream electronic manufacturing enterprises' end products smoothly pass the relevant environmental certification of EU RoHS 3.0 and REACH regulations, greatly enhancing the international market competitiveness of domestic high-end electronic equipment.
Food-contact grade long-chain alkyl phenyl silicone oil is a green consumer-end product that has risen rapidly in recent years. This series of products prepared by the full-process solvent-free green process does not contain any organic solvent residues. All performance indicators have passed the FDA food contact safety certification and the relevant safety standards for food-contact rubber products. It can be safely applied in scenarios such as high-end food oil-proof mats, infant silicone tableware, and high-end cosmetic base materials. This product has excellent biocompatibility, will not cause any irritation to the human body, and has a silky non-greasy skin feel, completely solving the safety hidden danger that traditional mineral oil-based products easily precipitate harmful components, and has been widely recognized in the high-end consumer market.
High weather resistance photovoltaic special phenyl silicone oil is a key material supporting the green development of the new energy industry. Based on the high phenyl content silicone oil prepared by the green process, the additive for photovoltaic component sealing glue modified with it can greatly improve the UV aging resistance of photovoltaic encapsulation adhesive film, extending the long-term service life of photovoltaic components from 25 years to more than 30 years, significantly improving the full life cycle power generation efficiency of photovoltaic power stations. At the same time, the low-carbon attribute of the product itself can also help photovoltaic module products reduce the overall carbon footprint, meet the relevant requirements of the EU Carbon Border Adjustment Mechanism, and escort the export of global photovoltaic products.
Nuclear-grade radiation-resistant green phenyl silicone oil is the core material to ensure the safe operation of nuclear power equipment. The halogen ion content of this series of products prepared by the full-process green purification process is less than 1ppm, and the total content of metal impurities is less than 50ppb. It can withstand long-term large-dose ionizing radiation, and there will be no obvious performance degradation within the 60-year design service life of nuclear power plants. The independent green mass production of this product has completely broken the long-term monopoly of overseas enterprises in the field of nuclear-grade special phenyl silicone oil, providing solid material support for the safety and independent controllability of the global nuclear power industry.
Looking ahead, the construction of the green manufacturing system in the phenyl silicone oil industry will continue to advance in depth. The next step of the industry will focus on tackling the bio-based phenyl monomer synthesis technology, using renewable biomass raw materials to prepare phenyl chlorosilane monomers, further reducing the fossil resource dependence of the full life cycle of products, and promoting the carbon footprint of phenyl silicone oil products to be reduced by more than 30%. At the same time, the industry will continue to promote the construction of intelligent green factories, dynamically optimize the production process through the whole-process digital twin system, further improve production efficiency and reduce energy consumption, and finally realize the near-zero carbon emission operation goal of the entire industry.
With the full maturity of the green manufacturing system in the phenyl silicone oil industry, domestic phenyl silicone oil products will not only fully meet the demand of the global high-end manufacturing field, but also rely on their excellent low-carbon performance and stable product quality to enter the global high-end market on a large scale, occupying a leading position in the green competition of the global special organosilicon materials, and contributing Chinese material strength to the low-carbon transformation of the global high-end manufacturing industry.
