Aircraft tire sidewall rubber with good solar radiation resistance performance

Abstract

The invention discloses aircraft tire sidewall rubber with good solar radiation resistance performance. The formula of the sidewall rubber consists of the following raw materials in parts by weight: 50-80 parts of 1# or 3# ribbed smoked sheet, 50-120 parts of butadiene rubber, 1-3 parts of ultraviolet light absorber, 0.5-1 part of anti-reversion agent, 1-3 parts of thermal stabilizer, 1-3 parts of crack preventing agent, 1-3 parts of p-phenylenediamine antiager, 3-6 parts of zinc oxide, 1-4 parts of stearic acid, 1-4 parts of sulfur or insoluble sulfur, 1-3 parts of sulfenamide accelerator, 40-50 parts of new process high-structure high-wear-resistant N375 carbon black, 5-10 parts of precipitated white carbon and 4-10 parts of aromatic hydrocarbon oil. The sidewall rubber has superior flex crack resistance performance, anti-ozone performance, thermal oxidation resistance performance and atmospheric aging resistance performance; the sidewall rubber has superior solar radiation resistance performance when used under severe use conditions of altitude environments, high ultraviolet intensity and high temperature, so the service performance of an aircraft tire is good and the storage life is long.

Description

technical field [0001] The invention relates to a polymer material, relates to a tire formula, in particular to an aviation tire sidewall rubber with good solar radiation resistance. Background technique [0002] The sidewall is the part with the largest lateral deformation of the tire. It is subject to frequent flexing and deformation. The sidewall is also in direct contact with the atmosphere, and the storage period of aviation tires is long. The sidewall rubber is required to have excellent flex crack resistance and anti-ozone, Thermal Oxygen, Atmospheric Aging Properties. When used under the harsh conditions of high altitude environment, high ultraviolet intensity and high temperature, the sidewall rubber of aviation tires is also required to have excellent solar radiation resistance, so that the aviation tires have good performance and long storage life. [0003] Existing aviation tire sidewall rubber mainly contains natural rubber, styrene-butadiene rubber, high-struc...

AI Technical Summary

Problems solved by technology

[0003] Existing aviation tire sidewall rubber mainly contains natural rubber, styrene-butadiene rubber, high-structure and high-wear-resistance N339 carbon black, paraffin wax, protective wax RP-3, p-phenylenediamine antioxidant, sulfur, and sulfenamide accelerators DZ and other ingredients have the disadvantages of poor solar radiation resistance, flex cracking resistance, ozone and thermal oxygen aging resistance. When used in a plateau environment, aviation tires need to withstand strong and long-term sunlight. Radiation, the tire sidewall compound needs to withstand the thermal and photochemical effects of solar radiation

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