Rubber composite for car radial tire treads

Abstract

The invention discloses a rubber composite applied to car radial tire treads. The rubber composite comprises the following substances of (i) dialkene elastomer; (ii) more than 30 phr of inorganic reinforcing filler; (iii) 2-15 phr of a coupling agent; (iv) 0-20phr of a plasticizer; and (v) 2-20 phr of resin, wherein phr represents the weight parts of all materials accounting for 100 parts by weight of dialkene elastomer. When the tire tread comprising the rubber composite is in use, the tire tread has excellent slip resistance and rolling resistance, and the tires are endowed with the balance of wetland grip, rolling resistance and wear resistance.

Description

technical field [0001] The present invention relates to rubber compositions, in particular rubber compositions for radial tire treads. Background technique [0002] The wet skid resistance, rolling resistance and wear resistance of tires are the most concerned performances of users. Wet skid resistance refers to the grip on wet ground, and the braking distance in rainy days is directly related to the driving safety of the vehicle. Rolling resistance, namely fuel economy, is an important indicator of greenhouse gas carbon dioxide emissions, environmental protection and energy saving. Abrasion resistance is the mileage of the tire, which is directly related to the service life of the tire. However, these three performances are mutually restrained and ebb and flow, which is called the magic triangle of tire performance. For example, if the grip in the wet is improved, the wear resistance will be reduced; the rolling resistance will also be reduced in the wet. In the 1990s, ...

AI Technical Summary

Problems solved by technology

Due to the relationship between the structure of the resin and its molecular weight, generally speaking, after adding the resin, the energy loss of the rubber compound will increase, that is, the hysteresis effect will increase

If resin is added to the tread, it will increase the rolling resistance of the tire

At the same time, due to the difference in compatibility between the chemical structure of the resin itself and the rubber and its reinforcing system, it will affect the wear resistance of the tire.

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