A large aviation tire chafer hanging rubber compound

Abstract

The invention discloses a large-scale aviation tire chafer hanging rubber compound, which is made of high-quality natural rubber as the main material, and is equipped with styrene-butadiene rubber, adhesive RS, adhesive A, and adhesion-promoting Agent AIR-201, new technology high structure and high wear-resistant carbon black, highly dispersible silica, silane coupling agent, p-phenylenediamine anti-aging agent, ketone-amine anti-aging agent, high temperature stable insoluble sulfur HD? OT? 20. The sulfenamide accelerator is the main auxiliary material, which is mixed by an internal mixer according to a certain weight ratio. The rubber compound has excellent heat resistance, high bonding strength and dynamic fatigue with nylon brown silk mesh, high bonding retention after heat aging, high tensile strength and tear strength, and elongation at break Great performance features.

Description

technical field [0001] The invention relates to a macromolecular material, in particular to a chafer hanging rubber material for a large aviation tire. Background technique [0002] Because aviation tires are used under severe conditions of high load and high speed, the bead part in contact with the rim is subject to large force and large deformation, especially as aircraft become larger, the size of aviation pneumatic tires is smaller than that of other large vehicle tires However, the load it carries is extremely large. Under the rated load, the tire subsidence rate is as high as 30-50% (the free section is high), and the service conditions are more severe. After aging, the adhesive performance retention rate of the adhesive tape is required to be higher. Existing aviation tire chafer hangers mainly include natural rubber, high wear-resistant carbon black, general-purpose carbon black, aromatic hydrocarbon oil, binder RS, binder A, ketone-amine antioxidant, common sulfur,...

AI Technical Summary

Problems solved by technology

[0002] Because aviation tires are used under severe conditions of high load and high speed, the bead part in contact with the rim is subject to large force and large deformation, especially as aircraft become larger, the size of aviation pneumatic tires is smaller than that of other large vehicle tires However, the load it carries is extremely large. Under the rated load, the tire subsidence rate is as high as 30-50% (the free section is high), and the service conditions are more severe. After aging, the adhesive performance retention rate of the adhesive tape is required to be higher

Existing aviation tire chafer hangers mainly include natural rubber, high wear-resistant carbon black, general-purpose carbon black, aromatic hydrocarbon oil, binder RS, binder A, ketone-amine antioxidant, common sulfur, secondary Sulfonamide accelerators and other components have the disadvantages of not ideal heat resistance, and low adhesion retention rate between the glue and the chafer after dynamic fatigue and heating. The bead is subject to large force and large deformation, which is prone to quality problems such as glue melting and delamination, which can easily lead to failure of the bead, which directly threatens the safety of large aviation tires