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Environment-friendly tire tread rubber mixture with low rolling resistance and high road holding force

A technology for tire treads and mixtures, applied in the direction of rolling resistance optimization, special tires, tire parts, etc., can solve the problem that the technical level cannot meet the competition, and achieve the effect of improving the test data of the verification project, improving the passability and safety.

Pending Publication Date: 2020-11-13
SICHUAN YUANXING RUBBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] With the internationalization and globalization of China's green tires, the export volume to Europe and the United States is increasing year by year. The technical requirements of tires need to compete with the world's top companies, and the current technical level cannot meet the competition.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Eucommia rubber: 8 parts, styrene-butadiene rubber F2743: 75 parts, styrene-butadiene rubber 5251H: 15 parts, butadiene rubber: 5 parts, N234: 8 parts, white carbon black HD1115MP: 60 parts, NXT363: 4 parts, zinc oxide: 3 parts, stearic acid 1810: 1.5 parts, antioxidant 4020: 2.5 parts, antioxidant RD: 1.5 parts, sulfur 99 (1% oil-extended): 2.0 parts, accelerator CBS: 0.8 parts, accelerator TS: 0.15 parts , Accelerator D: 1.45 parts, Dispersant BFS-3: 3 parts, Anti-slip material SY100: 2 parts.

[0023] The present invention also provides the preparation method of above-mentioned formula mixture:

[0024] Put all the rubber into the F370 internal mixer, use the speed of 55RPM to mix for 20 seconds, lift the top bolt, and put all the weighed additives except sulfur and accelerator into the internal mixer through the feeding door and packing delivery pipe, respectively. When the temperature rises to 120°C (considering the temperature rise of the equipment, it is set to ...

Embodiment 2

[0028] Eucommia rubber: 10 parts, styrene-butadiene rubber F2743: 70 parts, styrene-butadiene rubber NS624: 20 parts, butadiene rubber: 4 parts, N234: 10 parts, white carbon black HD1115MP: 70 parts, NXT363: 5 parts, zinc oxide: 5 parts, stearic acid 1810: 1.5 parts, antioxidant 4020: 1 part, antioxidant RD: 1 part, sulfur 99 (1% oil-extended): 1.5 parts, accelerator CBS: 1.2 parts, accelerator TS: 0.15 parts , Accelerator D: 1.05 parts, Dispersant BFS-3: 2 parts, Anti-slip material SY100: 2 parts.

[0029] The preparation method is the same as in Example 1.

[0030] Using the formula rubber of the present invention to test with a thermal dynamic analyzer DMA, the glass transition temperature Tg is at -19.3°C, the Tanδ at 0°C reaches 0.772, and the Tanδ at 60°C is only 0.044.

[0031] The rolling resistance value of the finished C1 tire using the formula rubber of the present invention is 6.32 (kg / ton)≤6.5 (kg / ton) on the indoor rolling resistance testing machine, which belon...

Embodiment 3

[0033] Eucommia rubber: 5 parts, styrene-butadiene rubber F2743: 60 parts, styrene-butadiene rubber 5251H: 30 parts, butadiene rubber: 8 parts, N234: 10 parts, white carbon black HD1115MP: 50 parts, NXT363: 3 parts, zinc oxide: 2.5 parts, stearic acid 1810: 1.5 parts, antioxidant 4020: 1 part, antioxidant RD: 1.5 parts, sulfur 99 (1% oil-extended): 3 parts, accelerator CBS: 1.2 parts, accelerator TS: 0.15 parts , Accelerator D: 1.05 parts, dispersant BFS-3: 1 part, anti-slip material SY100: 3 parts.

[0034] The preparation method is the same as in Example 1.

[0035] Using the formula rubber of the present invention to test with a thermal dynamic analyzer DMA, the glass transition temperature Tg is at -18.5°C, the Tanδ at 0°C reaches 0.760, and the Tanδ at 60°C is only 0.040.

[0036] The rolling resistance value of the finished C1 tire using the formula rubber of the present invention is 6.38 (kg / ton)≤6.5 (kg / ton) as measured on the indoor rolling resistance testing machine...

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Abstract

The invention provides an environment-friendly tire tread rubber mixture with low rolling resistance and high road holding force, and belongs to the technical field of tires. The mixture comprises thefollowing components in parts by weight: 70-90 parts of double-end modified solution polymerized styrene-butadiene rubber, 10-30 parts of diene rubber, 5-10 parts of carbon black, 50-70 parts of white carbon black with medium-low specific surface area, 3-5 parts of a monothio silane coupling agent, 2-5 parts of tackifying resin, 5-10 parts of zinc oxide, 1-2 parts of stearic acid, 2-4 parts of ananti-aging agent, 1.5-3 parts of sulfur, 1-3 parts of an accelerant, 1-3 parts of dispersing agent and 1-3 parts of wet-skid-resistant material. With application of the product, the trafficability and the safety on a slippery road surface are improved, and third-party wetland road surface test data reaches the slippery grade A; meanwhile, the data measured by the indoor rolling resistance testingmachine also reach the rolling resistance A level.

Description

technical field [0001] The invention belongs to the technical field of tires, and in particular relates to a low-rolling-resistance, high-grip environment-friendly tire tread compound. Background technique [0002] The requirements of the labeling law force domestic tire manufacturers to carry out relevant performance upgrades, mainly to reduce the rolling resistance of the tires, to improve the fuel or battery efficiency of the vehicle, and to improve the grip of the tires, especially the grip on wet and slippery ground. [0003] As a tire component directly in contact with the ground, the tread has a great influence on the rolling resistance and wet skid resistance of the tire beyond the structural design of the tire itself, so the formula design of the tread compound is particularly important. At present, although various tire manufacturers in the industry have researched and developed tread compound formulas with low rolling resistance and high wet slippery, the actual t...

Claims

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Application Information

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IPC IPC(8): C08L15/00C08L7/00C08L9/00C08K13/04C08K7/26C08K3/22C08K5/09C08K3/06C08K3/04B60C1/00
CPCC08L15/00B60C1/0016C08L2205/025C08L2205/035C08K2003/2296Y02T10/86
Inventor 吕荣福古景根
Owner SICHUAN YUANXING RUBBER
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