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High-wear-resistance all-steel truck radical tire tread rubber

A radial tire and tread rubber technology, which is applied in special tires, tire parts, transportation and packaging, can solve the problems of physical and mechanical performance degradation, reduced tire service life, poor self-reinforcement of butadiene rubber, etc., and achieve excellent Abrasion performance and service life extension effect

Pending Publication Date: 2021-01-01
SHANDONG LINGLONG TIRE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the one hand, increasing the content of butadiene rubber in the formula by a large proportion can improve the wear resistance of the tire tread, but due to the poor self-reinforcing property and low cohesive energy of butadiene rubber, the puncture resistance of the tread rubber will be reduced. Decreased ability to bind and resist chipping
On the other hand, super wear-resistant carbon black with a small particle size and a large specific surface area has the disadvantages of not being easy to disperse, increasing heat generation, decreasing physical and mechanical properties, and accelerating aging while enhancing the reinforcing effect with rubber, thereby reducing tire wear. service life

Method used

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  • High-wear-resistance all-steel truck radical tire tread rubber
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  • High-wear-resistance all-steel truck radical tire tread rubber

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0019]The tread rubber with the composition specified in Table 1 was prepared in the BR Banbury internal mixer. The preparation process adopted two separate feeding and mixing stages, namely, a non-productive mixing stage and a productive mixing stage. In the non-productive stage, mixing is carried out for about 2-3 minutes, until the rubber temperature reaches 160°C, which is complete. The mixing time in the productive stage is the time for the rubber temperature to reach 115°C.

[0020]The tread rubber is referred to as sample a, sample b, sample c, sample d, and sample e here. Sample a is used here as a control sample, that is, the optimal amount of filler is not used in the filler system.

[0021]All samples were cured at about 151°C for about 30 minutes. Table 2 shows the apparent and physical properties of the cured samples a-e.

[0022]Table 1 Example 1 Each raw material component of tread rubber

[0023]

[0024]

[0025]Table 2 Example 1 Performance Table of Tread Rubber

[0026] 151℃*30min ...

example 2

[0028]The tread rubber with the composition specified in Table 3 was prepared in a BR Banbury mixer. The preparation process adopted two separate feeding and mixing stages, namely, a non-productive mixing stage and a productive mixing stage. In the non-productive stage, mixing is carried out for about 2-3 minutes, until the rubber temperature reaches 160°C, which is complete. The mixing time in the productive stage is the time for the rubber temperature to reach 115°C. Among them, the carbon nanotube / butadiene pre-dispersed masterbatch is prepared by mechanical blending and in-situ modification, and then added to an internal mixer for mixing in a non-productive stage.

[0029]The tread rubber is referred to as sample A, sample B, sample C, sample D, and sample E here. Sample A is used here as a comparison sample, that is, the optimized rubber ratio is not used in the tread rubber.

[0030]All samples were cured at about 151°C for about 30 minutes. Table 4 shows the physical properties of ...

example 3

[0036]The tread rubber with the composition specified in Table 5 was prepared in a BR Banbury mixer. The preparation process adopted two separate feeding and mixing stages, namely, a non-productive mixing stage and a productive mixing stage. In the non-productive stage, mixing is carried out for about 2-3 minutes, until the rubber temperature reaches 160°C, which is complete. The mixing time in the productive stage is the time for the rubber temperature to reach 115°C. Among them, the carbon nanotube / butadiene rubber pre-dispersed masterbatch is prepared by in-situ modification by mechanical blending, and then added to an internal mixer for mixing in a non-productive stage.

[0037]The tread rubber is referred to as sample 1, sample 2, sample 3, and sample 4 here. Sample 1 is used here as a comparison sample, that is, the optimized rubber ratio is not used in the tread rubber.

[0038]All samples were cured at about 151°C for about 30 minutes. Table 6 shows the physical properties of cure...

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Abstract

The invention a relates to high-wear-resistance all-steel truck radical tire tread rubber. The tread rubber is prepared from, by weight, 70-90 parts of cis-1, 4-polyisoprene rubber, 10-30 parts of butadiene rubber, 3 parts of carbon nanotubes or 10-40 parts of carbon nanotube / butadiene rubber pre-dispersed masterbatch, and 40-50 parts of super wear-resistant carbon black. The tread rubber has thebeneficial effects that the tread rubber has excellent wear resistance, cutting resistance and heat-conducting property, and the service life is remarkably prolonged.

Description

Technical field[0001]The invention relates to a high wear-resistant all-steel radial truck tire tread rubber.Background technique[0002]With the rapid development of my country’s expressways and the enforcement of the new national standard, my country’s transportation industry will be further upgraded. In the future, tire failures will turn from flat tires to tread wear. The requirements for tires will be lower. Rolling resistance, better wear resistance and longer mileage. At present, in the tread formula of all-steel radial truck tires used on highways, the raw rubber system usually uses natural rubber with better comprehensive performance or combined with some butadiene rubber with excellent wear resistance, and the reinforcement system adopts small particle size, Super wear-resistant carbon black with large specific surface area.[0003]The current tread formula has room for further improvement in adapting to the high wear resistance required by highway pavement. On the one hand, a...

Claims

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Application Information

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IPC IPC(8): C08L9/00C08L91/06C08K13/02C08K3/04C08K3/22C08K3/06C08K5/09B60C1/00
CPCC08L9/00B60C1/0016C08L2205/025C08L2205/035C08K2201/006C08K2201/004C08K2201/003C08K2201/011C08K2003/2296C08L91/06C08K13/02C08K3/04C08K3/041C08K3/22C08K3/06C08K5/09
Inventor 王锋王书磊孙涛刘峰王俊英王振玲周宝珍谢红杰邢涛陈雪梅
Owner SHANDONG LINGLONG TIRE
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