Leakage-proof tyre and preparation method thereof

Abstract

The invention provides an anti-leakage tire and preparation method thereof. A gelatin elastic material, which is a blend of vulcanized rubber, thermoplastic elastomer and resin, is applied on the inner surface of the anti-leakage tire. The preparation method comprises the following steps: (1) adding raw materials into a reaction kettle, stirring while heating, and dispersing to obtain a uniform and flowable blend; (2) adjusting the temperature of the blend; and (3) transporting to the sprinkler of a metering pump by a transport pump, and spraying on the bottom of the inner wall of the tire to form a uniform elastomer coating with a thickness of 3 to 5 mm and with self-sealing performance. The test shows that the tire pressure is normal and no leakage is present when the tire having 10 iron nails pinned therein experiences 3,000 miles high-speed running in high-temperature and low-temperature environment. The method can effectively solve the problems of micro-leakage and pinned leakage, thus lowering the tire maintenance cost, improving the running safety and achieving remarkable social and economic benefits.

Description

technical field [0001] The invention relates to the technical field of vehicle tires. Specifically, the present invention relates to a kind of anti-run-flat tire and its preparation method. Background technique [0002] Most of the pneumatic tires of existing motor vehicles and non-motor vehicles do not have perfect safety protection devices, which cannot effectively ensure that the outer tires cannot be punctured and the inner tires cannot be punctured. The better protection is that the inner tube adopts a thick rubber ferrule on the outer tire cover of the heavy foam type, but these methods are complicated in manufacturing process, affect the appearance of the tire shape, and lack of practicability, so they cannot be widely used, causing the vehicle in motion, Often because the outer tire is punctured by a sharp instrument, and then the inner tube is leaked, the car has to be stopped halfway, maintained, and even an accident occurs. [0003] A kind of " run flat " tire i...

AI Technical Summary

Problems solved by technology

These two types of tires also have airtight effect after pinning, but they have the same disadvantages: in higher ambient temperature, or when the tire is driven at high speed, and the heat storage temperature rises higher, the coating layer inside the tire will soften and flow into a ball , causing the tires to lose their dynamic and static balance, affecting driving safety

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