Low-temperature-resistant and high-wet-skid-resistant snow tire tread rubber and preparation method thereof
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A technology for low temperature resistance and snow tires, applied in the field of snow tire tread rubber and its preparation, can solve the problems of low temperature resistance, unsatisfactory grip on ice and snow, reduced tire service life, poor wear resistance, etc.
Pending Publication Date: 2021-05-18
山东兴鸿源轮胎有限公司
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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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Embodiment 1
[0039] Raw material composition: 40 parts of natural rubber, 55 parts of solution-polymerized styrene-butadiene rubber, 20 parts of butadiene rubber BR9000, 5 parts of high wear-resistant carbon black N234, 60 parts of high-dispersion silica, 6 parts of silica dispersant, silane 6 parts of joint agent, 16 parts of paraffin base oil, 2.50 parts of activated zinc oxide, 2 parts of tackifying resin, 1.50 parts of stearic acid, 4 parts of anti-aging agent, 2.70 parts of accelerator, and 1.35 parts of sulfur.
[0040] Raw material in embodiment 1 makes tire tread rubber through following steps:
[0041] Control internal mixer rotor speed 40-60rpm, top bolt pressure 50-60N / cm , internal mixer cooling water temperature 30-40 ℃, comprise the following steps:
[0042] (1) Add natural rubber, solution polystyrene butadiene rubber, butadiene rubber BR9000, 70% of the total mass of highly dispersed silica, silica dispersant, silane coupling agent and active zinc oxide, tackifying resin, s...
Embodiment 2
[0054] Composition of raw materials: 55 parts of natural rubber, 34.375 parts of solution-polymerized styrene-butadiene rubber, 20 parts of butadiene rubber BR900020, 10 parts of high wear-resistant carbon black N234, 60 parts of high-dispersion silica, 6 parts of silica dispersant, silane coupling 6 parts of agent, 16 parts of paraffin base oil, 2.50 parts of active zinc oxide, 2 parts of tackifying resin, 1.50 parts of stearic acid, 4 parts of anti-aging agent, 2.70 parts of accelerator, and 1.35 parts of sulfur.
[0055]The preparation method in embodiment 2 is identical with embodiment 1
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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...
Claims
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