Novel magnetofluid tire sealing material taking methylsilicone oil as continuous phase

Abstract

The invention discloses a novel magnetofluid tire sealing material taking methylsilicone oil as a continuous phase, and belongs to the technical field of tires. The formula of the material is characterized by consisting of the methylsilicone oil, talcum powder, nanoscale ferroferric oxide powder, nanoscale AlNiCo magnet powder, diethyl ethylene diamine, terminal group polyisobutene, petroleum sodium sulfonate, silicone rubber particles and polyvinyl acetate emulsion. The material provided by the invention is mainly used in a radial tire of a steel cord layer, and is the novel magnetofluid tire sealing material which cannot affect the dynamic balance of a wheel, is capable of filling a gap (the diameter is less than or equal to 10mm) by self, and is free of dried-up and freezing, good in stability and durable. After using the material, along with the rotation of the wheel, a circle of magnetofluid is uniformly hung on the inner wall of the tire; the magnetofluid provided by the invention can be stably and uniformly hung on the inner wall of the tire for a long time due to that fact that the magnetofluid is subjected to the suction effect of a steel cord cloth layer in the tire, so that the dynamic balance of the wheel cannot be affected, and this is revolutionary improvement compared with the prior art.

Description

technical field [0001] The invention belongs to the technical field of tires. The invention relates to a new self-replenishing material applied to radial tire sealing, in particular to a new magnetic fluid tire sealing material in which methyl silicone oil is a continuous phase. Background technique [0002] Automobiles and various motor vehicles have become one of the important symbols of modern civilization. During their use, tires are punctured by nails or sharp hard substances on the road surface to cause deflation, which often causes the vehicle to fail to operate normally. The earliest automatic tire sealant was applied in the US military wheeled vehicles in the 1920s and 1930s. The tires of military vehicles were filled with automatic tire sealant. It has a history of 80-90 years. The advantage of the automatic tire repair fluid in the prior art is that it can be repaired in 3 seconds without removing the tire; however, it also has many disadvantages: 1. It affects th...

AI Technical Summary

Problems solved by technology

The advantage of the automatic tire repair fluid in the prior art is that it can be repaired in 3 seconds without removing the tire; however, it also has many disadvantages: 1. It affects the dynamic balance of the wheel: when a can of automatic tire repair is used After the liquid is removed, 200ml-300ml of liquid remains on the inner bottom of the tire. This liquid makes the wheel run like an eccentric wheel, which not only increases the noise, but also reduces the stability, thus affecting the dynamic balance and belt when the wheel is running. There is a certain degree of traffic safety hazard

2. When the diameter of the tire wound is greater than 6mm, the automatic tire sealant does not work

3. There are also some inflatable tank type automatic tire sealant products, the ingredients of which can only temporarily inflate the flat tire and reduce leakage, until the vehicle is driven to the nearest repair station

4. Some tire sealant products will dry up inside the tire or freeze in cold weather, not only lose the sealing effect, but will damage the inner wall of the tire