Carcass layer tread rubber of aviation radial tire

Abstract

The invention discloses a carcass layer tread rubber of an aviation radial tire. A crude rubber system of the carcass layer tread rubber jointly adopts natural rubber and butadiene rubber; a reinforcement system adopts STERLIN V (SV) carbon black and adopts parts of white carbon black; accessory ingredients, including silane coupling agent KH-560, binding agent SL-3090, adhesion promoter AIR-201, adhesion promoter AIR-1 and the like, are added into a formula. The carcass layer tread rubber disclosed by the invention has the advantages of low hardness and stress at definite elongation, soft rubber material and small possibility of generating gaps during repeated deformation; the carcass layer tread rubber can be suitable for the performance requirements of high speed, high load and high refurbishment frequency of a novel tire in the future; before and after ageing, the carcass layer tread rubber has the advantages of high bonding strength of the rubber material and a nylon cord, good fatigue durability, low heat generation, high rebound value and small hysteresis loss; a carcass layer of the tire can be protected from delamination, swelling and tire side puncturing, and the service life and the safe performance of the aviation radial tire are improved.

Description

technical field [0001] The invention relates to the technical field of high polymer materials, in particular to rubber coating for carcass layers of aviation radial tires. Background technique [0002] The carcass layer of aviation radial tire is the skeleton of the tire. In addition to bearing the air pressure of the tire, it also bears the load of the tire and buffers the external impact force. The cords of the radial tire carcass layer are arranged radially, and the radial deformation ratio of the sidewall Bias tires are 10% to 30% larger. In addition, the number of retreading of aviation radial tires is high. The existing aviation radial tires are caused by many reasons such as high speed and heavy load, large deformation of the sidewall, and the use of rubber materials and material compatibility. Carcass layer delamination, bulging, sidewall bursting, etc. are prone to occur when the tire rolls at high speed, which affects the service life and safety. Contents of the ...

AI Technical Summary

Problems solved by technology

[0002] The carcass layer of aviation radial tire is the skeleton of the tire. In addition to bearing the air pressure of the tire, it also bears the load of the tire and buffers the external impact force. The cords of the radial tire carcass layer are arranged radially, and the radial deformation ratio of the sidewall Bias tires are 10% to 30% larger. In addition, the number of retreading of aviation radial tires is high. The existing aviation radial tires are caused by many reasons such as high speed and heavy load, large deformation of the sidewall, and the use of rubber materials and material compatibility. Carcass layer delamination, bulging, sidewall burst, etc. are prone to occur when the tire is rolling at high speed, which affects the service life and safety

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