With the increasing demand for automotive tires, the selection of preferred tires for manufacturing tires has become more cautious. Tire tread rubbers need to have low rolling resistance and good wet skid resistance. Excellent wear resistance and so on. Therefore, high-performance solution-polymerized styrene-butadiene rubber (SS-BR) has gradually become one of the preferred plastics for high-performance green tires. The news from the PetroChina Research Institute of Petroleum and Petrochemicals, the preparation of star-type hybrid arm rubber pilot test technology development project completed by the Institute of lithium initiators, through the China Petroleum Technology Management Organization expert acceptance. Experts believe that the trial process is stable, the product has the characteristics of high coupling efficiency, easy control of Mooney viscosity, low rolling resistance and high wet skid resistance, which can improve the compatibility of natural rubber and other synthetic rubbers. The successful development of this new structural integrated rubber (SIBR) is of great significance for the upgrading of China's rubber industry and tire companies' better response to EU tire label regulations. Integrated rubber is a new generation of solution-polymerized styrene-butadiene rubber synthesized from the viewpoint of molecular design. Because the butadiene rubber, styrene-butadiene rubber, and isoprene segments are linked in sequence on the molecular chain, natural rubber, butadiene rubber, and styrene-butadiene rubber are combined. The advantages are all in one. This topic is a subtopic of the polybutadiene rubber production technology and new product development issues jointly undertaken by Petrochemical Institute and Dushanzi Petrochemical Company. The pilot scale is 100 tons/year. The researchers used difunctional divinylbenzene (DVB) as a coupling agent to develop a heterobrake copolymerization technique for isoprene and randomized styrene butadiene to synthesize a star isoprene and a star Random styrene-butadiene hybrid copolymer rubber. Through the study of high coupling efficiency and coupling degree and control of polymer sequence structure, the project achieved stable control of the divinylbenzene coupling process and polymer quality, and a highly coupled star-shaped hybrid arm was obtained. New rubber grade SIBRsm-4020, and systematically studied its processing formula. The implementation of foreign tire fuel labelling regulations and the upgrading of the domestic tire industry provide opportunities for the rapid development of SIBR. The mastery of SIBR's synthetic technology, in a sense, mastered the competitiveness of high-end synthetic rubber. The successful development of the star-shaped hybrid arm rubber marks a new stage in the independent development of SIBR's complete set of technologies for China Petroleum. The synthesized SIBRsm-4020 pilot product was used by the downstream tire company with good results. Compared with traditional NR/SBR blend compounds, the rolling resistance is reduced by 10 to 15, the corresponding fuel consumption is reduced by 2 to 3, the wear resistance is improved by 5 to 7, and the wet skid resistance is improved. 5. The application results show that the star type hybrid arm Rubber is an integrated rubber with excellent mechanical properties, low temperature resistance, high wet skid resistance and low rolling resistance. Bath Sink Faucets,Sink Mixer Price,Cheap Kitchen Mixer Tap,Kitchen Sink Mixer Taps Kaiping City Yibiao Sanitary Ware Co., Ltd. , https://www.faucetsaoli.com
Styrene butadiene rubber into high-performance green tires preferred material