my country conquered the core technology of high-performance tire tread rubber

A few days ago, the functionalized solution polymerized styrene butadiene rubber SSBR72612F, jointly developed by the China Petroleum and Petrochemical Research Institute, Tongji University and Dalian University of Technology, completed the industrial test in Dushanzi Petrochemical Company, and passed the 72 hours of experts organized by the Petroleum and Chemical Industry Association.
On-site assessment
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The launch of a new domestic high-end tire tread rubber with independent intellectual property rights has broken the technological monopoly of European and American countries and will help domestic tire rubber achieve technical "curve overtaking"

Synthetic rubber is a capital and technology-intensive industry.
After more than 60 years of unremitting struggle, China has become the world's largest producer and consumer of synthetic rubber, and more than 50% of China's synthetic rubber is mainly used to make tires
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With the continuous rapid growth of the national economy, China's total tire output in 2004 has surpassed the United States and jumped to the world's number one

As a symbolic industry of modern industry, the automobile industry has a long industrial chain and is a pillar industry of the national economy
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According to the statistics of the International Automobile Manufacturers Association (OICA), in 2020, global automobile production and sales fell by 13.

At present, China has an efficient and stable social order, a complete tire industry chain and a broad and open consumer market
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However, affected by the monopoly of high-end synthetic rubber technology in European and American countries, China's tire products are mainly concentrated in the low-end and middle-end products, which are 2-3 grades behind foreign high-performance tires

In 2017, PetroChina took the lead in organizing a project team composed of universities, scientific research institutes, rubber manufacturers, and tire processing companies, and successfully competed for the national key research and development program "Key Technologies for the Industrialization of High-Performance Synthetic Rubber"
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In the past few years, the project team has deployed innovation chains around the industrial chain, laid out the industrial chain around the innovation chain, and aimed at key core technologies, striving to improve the level of the industrial chain and supply chain and maintain its safety

The development of functionalized solution-polymerized styrene butadiene rubber is one of the sub-topics of the "Key Technologies for Industrialization of High-Performance Synthetic Rubber" project
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Functionalized solution polymerized styrene butadiene rubber is mainly used to prepare the tread of green high-performance tires (double B grade and above)

A team of technicians from China Petroleum and Petrochemical Research Institute, Dushanzi Petrochemical Company, Tongji University and Dalian University of Technology lasted 4 years of technical research and solved the design and development of functionalized reagents, purification of functionalized reagents, functional group types and structures, and tires "Magic triangle" performance (rolling resistance, wet skid resistance and abrasion resistance) and other technical problems such as the structure-activity correlation law, broke through key technologies such as engineering amplification of functionalized reagent preparation and stable control of polymerization process, and successfully realized functionalization Industrialization of solution polymerized styrene butadiene rubber SSBR72612F
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　　According to the mechanism of the filler-enhanced rubber interface, the researchers introduced functionalized polar groups on the molecular chain of general solution polystyrene butadiene rubber to achieve high functionalization efficiency and accurately control the position of the functional group in the molecular chain, effectively improving the filler The dispersibility in the rubber inhibits the heat generation of the disordered movement of the polymer chain ends, and ultimately achieves the purpose of reducing the rolling resistance of the tread rubber and improving the wet skid resistance
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　　 In this industrial test, 100 tons of functionalized solution polymerized styrene butadiene rubber products with Mooney viscosity of about 60, 23.
5% styrene content and 61% vinyl content were successfully trial-produced
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The main performance indicators of the products have reached the level of similar products in the world, breaking the foreign technology monopoly on functionalized solution polymerized styrene butadiene rubber, and realizing the production demonstration in 35,000 tons/year industrial equipment

　　Tests show that the double B-grade tires prepared by functionalized solution-polymerized styrene-butadiene styrene have a rolling resistance reduction of more than 10% compared to D and E-grade tires
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Statistics show that for every 10% reduction in rolling resistance, vehicle fuel consumption is reduced by 0.

　　The research and development, promotion and application of high-performance synthetic rubber tire tread materials indicate that China has mastered the highest-end synthetic rubber synthesis technology, achieved the goal of transforming first-class technology into first-class products, filled the gaps in similar products at home and abroad, and made up for constraints The shortcomings of basic materials urgently needed for the upgrading of the domestic tire industry provide a solid material foundation for China's rubber industry to move from a big country to a strong country, and tire products from low-end to high-end, and for the country and enterprises to cope with the post-epidemic era, global countercurrent, and unilateralism.
Harmony and trade protectionism provide brand-new solutions, which can not only help the realization of China’s energy-saving emission reduction, carbon neutrality, and carbon peaking strategic goals, but also have great social benefits and economic value, and promote the new industrialization of China’s related industries.
It will also meet the urgent needs of domestic tire companies and realize import substitution
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