Macromolecular self-sealed hot melt adhesive powder with temperature resistance, pressure resistance and explosion-proof performance for automobile tyre

Abstract

The invention relates to macromolecular self-sealed hot melt adhesive powder with temperature resistance, pressure resistance and explosion-proof performance for an automobile tyre. The macromolecular self-sealed hot melt adhesive powder comprises the following components in percentage by weight: 42-62% of a thermoplastic elastomer, 34-54% of a tackifier, 3-8% of a plasticizer, 0.5-1.5% of an antioxidant and 0-1% of a catalyst. By the macromolecular self-sealed hot melt adhesive powder for temperature resistance, pressure resistance and explosion-proof performance of the automobile tyre, the macromolecular self-sealed hot melt adhesive powder is sprayed on the inner wall of the tyre by an automobile tyre glue sprayer, and the inner wall of the tyre is not destructively processed, and is only subjected to release agent removal and drying treatment. After the macromolecular self-sealed hot melt adhesive powder is hot-melted, the macromolecular self-sealed hot melt adhesive layer which is thicker than 3.5mm is sprayed on the whole or the crown part of the inner wall of the tyre, so that the common automobile tyre is upgraded to the tyre which can normally work from a low temperature of -40 DEG C to a high temperature of 120 DEG C. The tyre has the performances of bullet resistance, leak prevention, explosion-proof performance and prick resistance.

Description

technical field [0001] The invention relates to a polymer rubber powder, in particular to a polymer self-sealing hot-melt rubber powder with temperature resistance, pressure resistance and explosion-proof performance for automobile tires. Background technique [0002] At present, there are two types of car wheels used in vehicles, one with inner tubes and the other without tubes. At present, almost all of the passenger vehicles use tubeless wheels. The country requires gradual promotion and use of heavy-duty vehicles. Tubeless car wheel. The tubeless car wheel has the advantages of good heat dissipation, softness, sealing, good riding comfort, and long intervals between inflation and use. , the high-pressure gas in the tire of the car tire will leak out or blow out at the punctured part; Blowout or two situations of rapid leakage, the risk of automobile accidents is high, and the probability of car crashes and fatalities is high. [0003] Since the main technology in the ...

AI Technical Summary

Problems solved by technology

[0004] 1. Since isoprene rubber, butene rubber, and silicone rubber are important members of synthetic rubber, they have a wide range of applications and high raw material prices;

[0005] 2. The activity and anti-aging properties of this type of rubber cannot achieve substantial technological breakthroughs, and it is difficult to use them in the harsh working environment of automobile wheels for a long time;

[0007] 4. The raw materials of isoprene rubber, butene rubber and silicone rubber used, cost and industrialization development are the factors restricting the promotion

The existing polymer self-sealing hot-melt adhesive powder is difficult to meet this requirement, mostly due to the poor adhesion of the polymer self-sealing hot-melt adhesive powder and the unreliable adhesion to the inner wall surface of the automobile wheel tire, causing the polymer self-sealing hot-melt adhesive powder layer to fall off or off-edge defects, it is difficult to achieve the function and effect of the upgraded car tires without deflation

[0011] In order to solve the above-mentioned problems, relevant manufacturers and research institutes have worked hard to find a solution, but no suitable polymer self-sealing hot-melt adhesive powder has been found for a long time