Automobile tire inner tire and preparation method thereof

Abstract

The invention belongs to the technical field of tire manufacturing, and discloses an automobile tire inner tire formula comprising natural rubber, solution polymerized styrene-butadiene rubber, butylregeneration rubber, filling materials, reinforcing agents, softening agents, activating agents, anti-aging agents and vulcanization / accelerators and a preparation method thereof. The natural rubber,the solution polymerized styrene-butadiene rubber and the butyl regeneration rubber are used in a combined way for improving the mechanical property and the physical mechanical performance of the inner tire, so that the tire has good heat resistance, old resistance, pressure resistance, wear resistance and flexing resistance performance; the use requirement of the daily automobile tire can be met;the service life of the tire is prolonged.

Description

technical field [0001] The invention relates to the technical field of tire manufacturing, in particular to an automobile tire inner tube and a preparation method thereof. Background technique [0002] The inner tube, commonly known as the inner tire, is a circular elastic tube with a tire valve for maintaining the inner pressure of the tire. The auxiliary pressure vessel should have good air tightness, heat resistance, elasticity, aging resistance and small permanent deformation. Inner tubes can be divided into natural rubber inner tubes and butyl rubber inner tubes according to the main materials contained. At present, butyl inner tubes are widely used, which have the advantages of good air tightness, high temperature resistance, aging resistance and long service life. , has been fully covered and used in the Americas and Japan. However, due to the complicated manufacturing process of butyl inner tubes and the large demand for butyl rubber, the domestic demand for butyl r...

AI Technical Summary

Problems solved by technology

Inner tubes can be divided into natural rubber inner tubes and butyl rubber inner tubes according to the main materials contained. At present, butyl inner tubes are widely used, which have the advantages of good air tightness, high temperature resistance, aging resistance and long service life. , has been fully covered and used in the Americas and Japan. However, due to the complicated manufacturing process of butyl inner tubes and the large demand for butyl rubber, the domestic demand for butyl rubber cannot be met, making the coverage of butyl inner tubes in China only 30%

[0003] At present, the domestic supply of butyl rubber is insufficient, mainly relying on imports, which increases the cost in production, and the butyl inner tube has the disadvantage of being irreparable and changing with changes in weather and temperature, so most of the domestic use of natural rubber or Some synthetic rubber is used as the main raw material, which has high strength and repairability, but its product performance is low, air tightness is poor, thermal deformation and aging resistance are poor, and its life is short, far below the international level

The Chinese patent "A Low Temperature Resistant Inner Tube Formula" (patent application number: 201510776496.6) discloses an inner tube formula that can effectively maintain the good physical properties and performance of the inner tube at super low temperatures and improve the use of the inner tube at low temperatures Life, but it is mainly aimed at the northern region, the improvement proposed for the use of the tire inner tube in cold winter, has little effect on the improvement of the heat resistance, pressure resistance and mechanical strength of the tire inner tube

Images