The key technology of synthetic glue industrialization has been breakthrough

It is expected to promote China's tire industry to become a world-class
On December 12, China Paint Online reporter learned from the China Petrochemical Research Institute that the key national research and development projects led by the Institute - the key technology of synthetic rubber industrialization has achieved phased results, in the star-based butyl/brominated butyl rubber synthesis, dual-class tire preparation technology and other core technical areas to achieve major technological breakthroughs. These "heavyweight" technology has raised the overall level of China's tire industry, after industrialization will make China's tire industry among the world's first popular column.
The project is led by the China Petroleum and Petrochemical Research Institute, the Chinese Academy of Sciences, Changchun Institute, Dalian University of Technology, Tsinghua University, Shandong Jinyu Industrial, Yiyi Rubber Research Institute, Zhejiang Xinhui and other 7 domestic rubber research institutions and universities jointly assume the
China
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-type brominated butyl rubber/brominated butyl rubber, which is an urgent rubber variety in the process of high-end tire industry in China to improve the life of vulcanized capsules and reduce the thin airtate layer. Star-type branched butyl rubber is a high-end product of butyl rubber, its production technology is difficult, harsh conditions, polymerization temperature of nearly -100 degrees C, there has been no mature technology and products. The project team from the polymerization raw materials, polymerization process, polymerization formula three levels, broke through the silt butyl rubber polymerization technology, the use of anion polymerization technology and theory, for the cation butyl rubber polymerization prepared with the silt stabilization function of a series of fertilization agents, developed a set of silt star-type butyl rubber preparation technology.
In addition, after hard work, the researchers took the lead in discovering the dynamic law and regulatory mechanism of butyl rubber bromination reaction in China, and developed a new process to control the bromine subsemination and improve the utilization rate of bromine, so that the selectivity of brominated butyl rubber was increased from 84.2% to 97%.
capsules are the core components of tire manufacturing and have an important impact on tire quality and cost. At present, the number of repeated use of domestic products about 450 times, compared with foreign advanced level is still a big gap, but also led to domestic-made tires than foreign advanced double B tires are 2 to 3 grades.
project team for the structural characteristics of star-based butyl rubber products, in the processing theory of innovation, developed a star-type butyl rubber high temperature, curved vulcanized capsule formula, so that its average service life increased by more than 15%, to 527 times. In view of the "magic triangle" problem that tire rolling resistance, anti-slip performance and wear-resistant performance can not be improved at the same time, the project team developed the formula balance control technology of tread rubber rolling resistance, anti-slip performance, and prepared 225/55ZR16 specification tire rolling resistance and anti-wetting performance by establishing the relationship between rubber and filler microstructure and tread rubber rolling resistance, anti-slip performance and dry wetland handling performance.
China's synthetic rubber industry after more than 50 years of development, has now become the world's largest production and consumption, but China's synthetic rubber industry "big but not strong", is in the transformation and upgrading of the "climbing period."
2017, China's synthetic rubber annual production capacity of nearly 6 million tons, while the annual output of only 3.55 million tons, annual imports of more than 1 million tons, the external dependence of the main rubber species reached 28.5%. Domestic market competition is hot, low-grade homogenization competition is very serious.
is the world's largest tire production country. According to statistics, China's tire production last year was 926 million, export volume reached 60%, but basically concentrated in E/D grade and other low-end products, low profits, with the advanced level of developed countries in Europe and the United States there is still a big gap.