Tread formula for all-steel load-carrying snow tires of automobiles and preparation method therefor

Abstract

The invention discloses a tread formula for all-steel load-carrying snow tires of automobiles and a preparation method therefor. The tread formula is characterized by consisting of the following raw materials in parts by weight: 62-88 parts of natural rubber, 12-38 parts of SSBR, 15-40 parts of high-dispersion white carbon black, 30-55 parts of carbon black, 1.2-4 parts of coupling agent liquid Si69, 3-15 parts of aromatic hydrocarbon oil, 2-8 parts of zinc oxide, 0.5-3 parts of stearic acid, 2-4 parts of anti-aging agent 6PPD, 1.5-3 parts of anti-aging agent RD, 2-5 parts of microcrystalline wax, 1-3.5 parts of oil-filled sulfur, 1-2.5 parts of accelerant NS, 0.1-1 part of accelerant DPG and 0.1-0.5 part of anti-scorching agent CTP. According to the tread formula for the all-steel load-carrying snow tires of the automobiles and the preparation method therefor, Tg, SSBR, which is similar to the natural rubber, and the white carbon black which is commonly used in semi-steel snow tires are used, so that treads are moderate in hardness and good in elasticity and have the advantages of superior snow glide resistance, good snow field traction, high snow field index and the like in snow field pavements of severe cold regions, and the rideability of tires of snow freighters is greatly improved.

Description

technical field [0001] The invention relates to the technical field of rubber and its processing, in particular to an all-steel truck snow tire tread formula and a preparation method thereof, in particular to a special snow tire suitable for rolling on severe cold and harsh snow roads. Background technique [0002] Snow tires emerged in the emerging market segmented by the tire industry. Due to their special use requirements, countries or regions with cold climates such as Europe, the United States, and Japan have gradually introduced strict regulations for the mandatory use of snow tires. Although there are no mandatory regulations in Russia, due to frequent heavy snowfall in recent years, many people have voluntarily requested to replace snow tires. For cars driving on snow, more attention should be paid to the braking performance, gripping performance and handling performance of the tire itself. The formula is the essential basis of the whole tire. Different from ordina...

AI Technical Summary

Problems solved by technology

For example, the tread hardness of semi-steel is usually controlled between 50 and 58 ShoreA, while the tread hardness of all-steel snow tires is usually between 55 and 65 ShoreA. Poor performance in terms of tire life cycle

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