When the vehicle is running, the tire will be punctured by nails or sharp hard objects on the road surface, resulting in sharp deflation; If the vehicle has a slight fault, it will overturn or control the vehicle in serious cases, and even cause serious accidents such as collision and death. Therefore, people are constantly studying tire repair technology, especially how to inject some products to prevent the tire from deflating slowly and fill the tire hole. This earliest product was the automatic tire repair liquid injected into the tires of American military vehicles in the 1920s and 1930s. The design principle of automatic tire repair liquid is: a certain amount of liquid containing some short fiber filaments or fine particles is injected into the tire in advance, and if the tire has micropores, it will be blocked; When there is a hole in the tire, the air escaping from the tire will discharge the liquid together with the fiber filaments or particles. The fiber or particles squeezed into the hole will immediately and firmly block it, so that the tire will no longer leak, and sufficient pressure will be maintained in the tire to enable the vehicle to continue driving and prevent possible accidents.
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