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A wear-resistant and variable friction tire based on shape memory polymer

A memory polymer and friction technology, which is applied to tire parts, reinforcement layers of pneumatic tires, tire treads/tread patterns, etc., can solve the problem of limited effects of wear resistance and anti-skid functions, cumbersome implementation process, and high cost. problems, to achieve the effect of improving wear resistance and service life, trigger mode and operation mode are simple, and improve wear resistance

Active Publication Date: 2018-12-14
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention aims at the problems that the existing tires have limited effects on wear resistance and anti-skid functions, high cost, and cumbersome implementation process, and provides a wear-resistant and variable friction tire based on shape memory polymers

Method used

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  • A wear-resistant and variable friction tire based on shape memory polymer
  • A wear-resistant and variable friction tire based on shape memory polymer
  • A wear-resistant and variable friction tire based on shape memory polymer

Examples

Experimental program
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Effect test

Embodiment 1

[0024] combined with figure 1 and 2 , a wear-resistant and variable-friction tire based on shape-memory polymers, driven by heating. Automobile tires are made of shape-memory butadiene rubber reinforced with carbon black particles, and the tread depth on the tire surface is 20mm such as figure 1 shown. The tire is heated, and when the temperature reaches about 125°C, the tire surface pattern undergoes compression pre-deformation. After the pre-deformation, the depth of the pattern is 10mm. After the temperature drops to room temperature, the tire surface spontaneously maintains the deformed shape. The pattern depth after pre-deformation can be well adapted to ordinary road surfaces. When the tire stroke reaches a high value and is greatly worn and the surface pattern depth is close to 1.6mm, the surface of the tire can be heated. When the temperature rises to about 125°C, the pattern on the tire surface will recover its shape and its depth will increase. As large as about ...

Embodiment 2

[0026] combined with figure 1 and 3 , a wear-resistant and variable-friction tire based on shape-memory polymers, powered by electricity. Car tires are made of carbon powder-enhanced shape-memory butyl rubber, and the tire surface pattern depth is 20mm, such as figure 1 shown. The tire is heated, and when the temperature reaches about 130°C, the tire surface pattern is compressed and pre-deformed, and the depth of the pattern after pre-deformation is 10mm is the first pre-deformation. When the car encounters rainy and snowy weather and other road surfaces that become smooth during driving, the tire can be driven through the metal plate mold with fine lines on the surface, and fine lines with a depth of 5mm and a width of 1.5mm will appear on the convex surface of the tire pattern. The pattern is the second pre-deformation. At this time, the pre-deformation of the fine lines on the convex surface of the tire pattern increases the friction between the tire and the ground, an...

Embodiment 3

[0030] combined with Figure 4 and 5 , a wear-resistant and variable-friction tire based on shape-memory polymers, powered by electricity. Car tires are made of carbon fiber-reinforced shape memory butyl rubber. The surface pattern depth of the tire is 26 mm, and there are fine lines with a depth of 5 mm and a width of 1.5 mm on the raised surface of the pattern, such as Figure 4 shown. Heat the tire. When the temperature reaches about 130°C, the pattern on the tire surface will undergo compression pre-deformation. After the pre-deformation, the depth of the pattern is 13mm, which is the first pre-deformation; Embossing pre-deformation treatment is carried out on the convex surface of the tire surface pattern, so that the fine-grained surface of the tire convex surface is flattened, but the overall depth of the tire pattern remains unchanged. This is the second pre-deformation; the tire is put into use after cooling to room temperature . During use, when the car encounter...

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Abstract

The invention discloses a wear-resistant tyre with variable frictional force based on a shape-memory polymer, belonging to the field of wear-resistant tyres with variable frictional force. According to the invention, the memory effect of the shape-memory polymer is employed for improving the wear resistance of the tyre; and frictional force between the tyre and ground can be regulated based on such a principle, so the tyre is allowed to conveniently and rapidly adapt to different pavement conditions. The tyre provided by the invention has the advantages that the wear resistance and service life of the tyre are improved; the tyre can adapt to a variety of pavement conditions and has improved security; and a triggering manner and an operation manner are simple and cost is low.

Description

technical field [0001] The invention relates to a wear-resistant and variable friction tire, in particular to a wear-resistant tire based on a shape-memory polymer, and the friction between the tire and the ground can also be regulated through the shape-memory effect. Background technique [0002] Tires are the key components for the contact between the car and the road surface, and different tire tread patterns have great differences in the performance of the tires. Tread patterns usually have three major functions: 1. Improve grip; 2. Reduce noise; 3. Increase drainage. The performance of automobile tires directly affects driving safety. Nearly more than 50% of traffic accidents are caused by tire failure. Generally speaking, a flat tire is caused by excessive wear of the tire, which causes the carcass to be too thin, and the inside of the tire is continuously heated. At this time, it is easy to be punctured by sharp objects, and the weather is overheated, resulting in a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60C9/02B60C11/03
CPCB60C9/02B60C11/03B60C11/032
Inventor 吴雪莲刘思远王宏宇陆衡杨永宏
Owner JIANGSU UNIV
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