Polyamide composite material for safety device of run-flat tire inner support body and preparation method thereof

Abstract

The invention relates to the technical field of tire burst prevention, in particular to a polyamide composite material for a safety device of a run-flat tire inner support body and a preparation method thereof. The material provides enough supporting strength, toughness, wear resistance, heat resistance and the like for a tire. The material is applicable to explosion-proof tires of special military police vehicles, operating passenger cars, operating trucks, urban buses and tractors. The preparation method of the polyamide composite material for the safety device of the run-flat tire inner support body thereof is simple and feasible, and is suitable for large-scale production and application.

Description

technical field [0001] The invention relates to the technical field of run-flat tires, and in particular to a polyamide composite material for a support body safety device in a run-flat tire and a preparation method thereof. Background technique [0002] With the development of means of transportation, cars have become an indispensable tool for people's daily life. As of the end of 2018, the total mileage of my country's highways was 4.8465 million kilometers, of which 142,600 kilometers were expressways; there were 673,400 buses and trams nationwide, and 14,354,800 highway operating vehicles, including 796,600 passenger cars and trucks. 13,558,200 vehicles (8,167,600 ordinary trucks, 526,300 special trucks, 2,376,700 tractors, 2,487,600 trailers). [0003] At present, most of the various vehicles driving on roads in our country, especially dangerous goods transport vehicles, container logistics transport vehicles, commercial buses, off-road vehicles, special vehicles, etc.,...

AI Technical Summary

Problems solved by technology

Therefore, aiming at the above-mentioned deficiencies or deficiencies in the existing tires that cause the risk of vehicle out of control and rollover and hidden dangers of accidents after the puncture, and in response to the country's mandatory management requirements for traffic safety and transportation, a material suitable for the safety device of the inner support body of the explosion-proof tire is developed. The safety device of the tire support made of this material can continue to maintain a stable property after the tire is blown out, which is in line with GB / T 38796-2020 "Performance Requirements and Test Methods for Emergency Safety Devices for Automobile Tire Burst" and the standard "JT" of the Ministry of Communications of the People's Republic of China / T 782-2020 Technical Requirements and Test Methods for Tire Burst Emergency Safety Devices of Commercial Vehicles "It is very necessary to prevent traffic safety accidents caused by car rollover and direction loss of control when a tire blows out

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