Low-temperature-resistant and high-wet-skid-resistant snow tire tread rubber and preparation method thereof

Abstract

The invention relates to low-temperature-resistant and high-wet-skid-resistant snow tire tread rubber and a preparation method thereof. The tread rubber is prepared from the following raw materials in parts by mass: 40.0 to 60.0 parts of natural rubber, 20.0 to 60.0 parts of solution polymerized styrene-butadiene rubber, 10.0 to 40.0 parts of butadiene rubber, 5.0 to 20.0 parts of high-abrasion-resistance carbon black N234, 50.0 to 80.0 parts of high-dispersion white carbon black, 3.0 to 8.0 parts of a white carbon black dispersing agent, 4.0 to 8.0 parts of a silane coupling agent, 10.0 to 30.0 parts of paraffin-based oil, 1.0 to 3.0 parts of activated zinc oxide, 1.0 to 3.0 parts of tackifying resin, 1.0 to 3.0 parts of stearic acid, 2.0 to 5.0 parts of an anti-aging agent, 1.0 to 3.0 parts of an accelerant and 1.35 parts of sulfur. According to the invention, the rolling resistance of a tire is reduced, the wet grabbing of the tire is improved, and the tire tread formula with low rolling resistance and high wet grabbing performance is obtained.

Description

technical field [0001] The invention relates to tires, in particular to a snow tire tread rubber with low temperature resistance and high wet skid resistance and a preparation method thereof. Background technique [0002] In recent years, in the northeastern, northwest, Inner Mongolia and other northern regions of China, the temperature in winter is relatively low, usually below minus 20°C. In Russia further north, the average daily temperature in winter is lower, such as: Kyzyl -29°C, Tuwa -35°C, Yakutsk -40°C. As a result, the number of accidents caused by snow and ice on the roads has increased. [0003] Anti-wet skid performance is a key indicator to measure the driving safety of a car, especially on wet and slippery road conditions. With the development of automobile power technology and modern highways, the driving speed of automobiles has been greatly improved compared with the past, so the anti-wet performance of tires is more important. Wet skid resistance is one...

AI Technical Summary

Problems solved by technology

Wet skid resistance is one of the mandatory performances, especially on icy and snowy roads, the higher the wet skid resistance of snow tires is required, it is best to use snow tires when driving on snowy roads. Due to the selection of the main material of ordinary snow tires, the low temperature resistance, ice and snow grip are not ideal, and the wear resistance is poor, which greatly reduces the service life of the tires.

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