Racing tire tread rubber formula and preparation method thereof

Abstract

The invention belongs to the technical field of tire preparation, and particularly relates to a racing tire tread rubber formula and a preparation method thereof. The formula comprises 10-20 parts ofnatural rubber, 100-120 parts of butadiene styrene rubber carbon black masterbatch, 5-30 parts of butadiene styrene rubber, 3-10 parts of high styrene resin, 5-25 parts of carbon black, 4-8 parts of aromatic oil, 2-4 parts of rosin, 1.5-2 parts of an antiager 4020, 1-1.5 parts of an antiager RD, 5 parts of zinc oxide, 2 parts of stearic acid, 0.9-1.6 parts of sulfur, 1-2 parts of an accelerator, and 0.1-0.4 parts of an antiscorching agent. The racing tire tread rubber formula can greatly improve the dispersing performance of the high structure and high specific surface area filler in the butadiene styrene rubber, thereby fully exerting the mechanics and mechanical properties of the formula; a tire prepared by the formula has excellent ground gripping property, wear resistance and mechanical properties, the tire can travel for a long distance, and the service life is long.

Description

technical field [0001] The invention belongs to the technical field of tire preparation, and in particular relates to a racing car tread rubber formula and a preparation method thereof. Background technique [0002] The wear resistance of tire tread rubber is one of the key performance indicators of tires. When the tire is running, the tread is in direct contact with the road surface. Under the action of periodic compression and shear deformation, the tread rubber usually falls off in the form of wear, curl and fatigue. Different from ordinary tires, racing tires have extremely high requirements for grip and handling performance. During high-speed driving, tangential and lateral forces cause great tread deformation and heat generation. Good grip is required to maintain good body stability performance. In addition, racing tires frequently turn and brake, and have higher requirements on the wear resistance of the tread. The traditional racing tread uses high filling to impr...