On January 16, 2026, the release event of Shandong Province’s top ten scientific and technological innovation achievements in 2025 was held in Jinan.
The top ten scientific and technological innovation achievements selected this time include 1200V vertical silicon-based gallium nitride transistors, high-end tire barrier materials, full-specification nickel-based steel products, etc., covering basic research, new generation information technology, high-end equipment, artificial intelligence and other fields, representing the latest achievements and the highest level of Shandong’s scientific and technological innovation.
Among them, the results of high-end tire barrier materials are particularly eye-catching.
Shandong Dawn Polymer Materials Co., Ltd. has successfully achieved large-scale production of high gas barrier dynamic vulcanized alloy materials (DVA) for tires, breaking the foreign technology monopoly and becoming the second company in the world to achieve mass production of DVA materials, marking that my country’s high-end tire barrier materials have reached the international leading level.
With the rapid development of the automobile industry, the market demand for high-performance tires is increasing day by day, and it has become an inevitable trend for tire airtight inner liners to develop in the direction of lightweight and high air tightness.
The development of new tire airtight materials with excellent comprehensive properties has become a global research and development focus.
DVA material has excellent gas barrier properties and recyclability, making it an ideal alternative to vulcanized butyl rubber.
Previously, only American companies in the world had mastered the full-process DVA production process technology. If downstream companies adopt this technical route, they must modify and adjust the current production line. Not only will they face high investment, but they will also face the risk of supply chain instability.
After 12 years of research and development, Dawn Co., Ltd., together with Beijing University of Chemical Technology, Linglong Tire and other units, broke through key technologies such as cross-linking dynamic vulcanization and composite membrane preparation, successfully developed new DVA materials for tires, and achieved large-scale production.
The air tightness of this material is 7 to 10 times that of traditional vulcanized butyl rubber. The tire’s pressure-holding capacity and air pressure durability are simultaneously increased by 50%. The thickness and weight of the airtight layer are reduced by 60%. The weight of a single tire is reduced by about 1 kg. It can effectively reduce the tire rolling resistance during driving and increase the cruising range by about 5%, meeting the urgent needs of fuel-saving vehicles and improved cruising range of new energy vehicles.
At the same time, the material is suitable for existing production processes and can be directly used by downstream companies without modifying equipment.
Currently, this achievement has been promoted and applied in multiple specifications of tires by downstream companies such as Linglong Tire.
Dawn Co., Ltd. is building a DVA material production line with an annual output of 20,000 tons, driving upstream and downstream output value of nearly 10 billion yuan, and promoting the rapid development of my country’s tire industry.
It is understood that the list of the top ten scientific and technological innovation achievements in Shandong Province in 2025 was organized by the Shandong Provincial Innovation and Development Institute and more than 60 academicians and experts from inside and outside the province strictly screened and voted from the provincial major scientific and technological innovation achievement database.
These achievements demonstrate Shandong’s strong strength in the field of scientific and technological innovation, and also inject new impetus into the development of related industries in our country.
