Recently, the reporter learned from Jilin Petrochemical Research Institute that its self-developed high-strength styrene-butadiene rubber SBR1566 product successfully completed industrial production, and the main index tensile strength reached more than 30 MPa.
Conveyor belt manufacturers predict that styrene-butadiene rubber will have a tensile strength of 30 MPa or more, and its replacement of natural rubber will reach 50%. That is to say, styrene-butadiene rubber SBR1566 achieves industrial production, reducing the cost of conveyor belt manufacturers and reducing the natural The dependence of rubber is of great significance.
In recent years, domestic production and consumption of styrene-butadiene rubber has increased year by year, but the growth of production capacity is far greater than consumption growth. The effective utilization rate of equipment has dropped from 91% in 2008 to 50% in 2015.
In recent years, the newly-built ESBR devices still use the traditional technologies of the 1980s and 1990s. The main brands in the market are general-purpose products such as SBR1500, SBR1502 and SBR1712, and the product homogenization phenomenon is serious.
The price of styrene-butadiene rubber has been falling all the time, forcing styrene-butadiene rubber manufacturers to start custom-made research and development products, and use product structure upgrades to resolve unfavorable competition.
“The industrial production of high-strength styrene-butadiene rubber SBR1566 is of special significance for the re-upgrading of our product structure. There is no styrene-butadiene rubber with a vulcanizate tensile strength greater than 30 MPa,” said the company's R&D staff.
Jilin Petrochemical's high-strength styrene-butadiene rubber special materials are used in the domestic two major conveyor manufacturers Zhejiang Double Arrow Co., Ltd. and Shandong Kangditek Engineering Rubber Co., Ltd. for 30% to 35% replacement of natural rubber.
The results show that the tensile strength of the test article is comparable to that of the natural rubber product, and the tensile strength is increased by more than 10%.
It is understood that the processing properties of styrene-butadiene rubber and the performance of the products are close to that of natural rubber. Some properties such as wear resistance, heat resistance, aging resistance and vulcanization speed are better than natural rubber, and can be used together with natural rubber and various synthetic rubbers. Widely used in the production of tires, tapes, hoses, wire and cable, medical equipment and various rubber products, it is the largest general-purpose synthetic rubber.