Last week, the R&D team of a well-known American tire and rubber company visited Qingdao Science and Technology University for the third time, and signed a $350,000 second-generation trans-isoprene with the team's new plastic and rubber synthesis and application team led by Prof. Aihua. Rubber (TPI) technical service cooperation contract. The company has carried out several rounds of performance tests on the second-generation TPI developed by the university in the early stage, and trial production and evaluation of the tires will soon begin. Another world-renowned shock absorbing material company also signed a cooperation framework agreement with the team.
In addition, Shandong Dongying Gree Rubber & Plastics Material Co., Ltd. was also attracted by the outstanding performance advantages of the second-generation TPI, and recently signed a patent transfer contract of up to 5 million yuan with the team, which will soon participate in the industrial production of the project. Prepare 4000 tons/year industrial pilot plant. As an ideal rubber material for developing high-performance green tires, the second-generation TPI will make the tires more fuel-efficient, longer-lived, and safer.
According to Professor He Aihua, the second-generation TPI new technology includes the new trans-1,4-polydiene compound rubber and its preparation method. Through the molecular structure design of rubber, the in-situ in-situ polymerization technology has been successfully used to synthesize many Component multi-structure trans-1,4-polydiene composite rubber. The in-situ in-situ polymerization technology can achieve molecular-level mixing compared to traditional blending methods. It can even enable multi-component structures on the same molecular chain, giving the material more unique properties such as excellent dynamic fatigue properties. , low temperature performance and abrasion resistance, etc., thus giving the material a wider range of uses.
Compared with the foreign solution polymerization process, the polymerization process is greatly simplified, the investment can be saved by more than half, there is no "three wastes" emission, and the production cost is greatly reduced, creating conditions for its application in rubber tires.
It is reported that in the 1960s and 1970s, foreign companies researched and developed trans-isoprene rubber using the vanadium system catalyst solution polymerization, but its cost is too high, the product price is more than 10 times that of natural rubber, it is difficult to be widely used. Qingdao University of Science and Technology, under the support of the National Natural Science Foundation of China and the “863†Program, invented a new technology to synthesize TPI with titanium-catalyzed isoprene bulk precipitation polymerization, which laid the foundation for the application of TPI, especially in tires. . In 2006, the TPI industrial pilot plant with an annual capacity of 500 tons was built to drive. Since then, Qingdao University of Science and Technology has been conducting trials of TPI pilot products in tires and other fields. After continuous exploration of the polymerization process and structural and performance tests, the industrialization of the second-generation trans-isoprene rubber was finally achieved.
With the increasing public safety and environmental protection awareness, countries are increasingly demanding high-performance tires for automobiles. The demand for new rubber compounds for tires is also increasingly urgent. In particular, climate change has become a challenge for development in various countries. Under the background of an important wrestling field that reduces the development cost, the development of low-carbon emission, green and energy-saving tires and its new rubber compound have become the magic weapon for international tire companies to occupy the commanding height of the market.
Trans-isoprene rubber can be blended and co-crosslinked with natural rubber, styrene-butadiene rubber, cis-butadiene rubber, cis-isoprene rubber, etc. The blended rubber has rolling resistance and heat reduction, and wear resistance and fatigue resistance are improved. Such characteristics, these are exactly what high-performance tires need, but also meet the needs of energy-saving emission reduction. The rubber products made therefrom have more excellent flex fatigue resistance, prominent abrasion resistance and low rolling resistance, which will make the tire more fuel-efficient, longer-lived, and safer. At the same time, its excellent dynamic performance can also be used in rubber damping materials.
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