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High-slippery-resistance tire tread rubber composite material and preparation method thereof

A technology for tire treads and composite materials, which is applied in the rubber field to reduce rolling resistance and improve wet skid resistance.

Inactive Publication Date: 2016-06-08
CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But so far there is no report of rare earth 3,4-isoamyl rubber used in tire tread rubber

Method used

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  • High-slippery-resistance tire tread rubber composite material and preparation method thereof
  • High-slippery-resistance tire tread rubber composite material and preparation method thereof
  • High-slippery-resistance tire tread rubber composite material and preparation method thereof

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preparation example Construction

[0048] A kind of preparation method of high anti-wet skid tire tread rubber composite material provided by the invention comprises the following steps:

[0049] Each component is weighed according to the above parts by weight, and the following mixing method is adopted for refining:

[0050] One-stage mixing: In the internal mixer, the filling factor is 0.66-0.72, adding solution polystyrene butadiene rubber, butadiene rubber, rare earth 3,4-isoamyl rubber, white carbon black, carbon black and silane coupling agent for mixing Mixing, the temperature of the rubber material is controlled at 145°C-165°C during mixing, and the mixing time is 180-240 seconds. After the mixing is completed, the rubber material is removed to obtain a section of mixed rubber;

[0051] Two-stage mixing: Put the first-stage compound rubber, zinc oxide, stearic acid, anti-aging agent, and plasticizer into the internal mixer for mixing. The mixing temperature is controlled at 130-150°C, and the mixing tim...

Embodiment 1

[0055] Embodiment 1: The formulation of the rubber compound is shown in Table 1.

[0056] One-stage mixing: In the internal mixer, the filling factor is 0.7±0.02, add all the raw rubber (solution polystyrene butadiene rubber, butadiene rubber and 3,4-isoamyl rubber), white carbon black and carbon black, silane The coupling agent is mixed. During mixing, the temperature of the rubber material is controlled at 150°C±5°C, and the mixing time is 240 seconds. After the mixing is completed, the rubber material is unloaded to obtain a section of mixed rubber.

[0057] Two-stage mixing: Put the first-stage compound rubber, zinc oxide, stearic acid, anti-aging agent, and plasticizer into the internal mixer for mixing. The mixing temperature is controlled at 145±5°C, and the mixing time is 180 seconds. After the mixing is completed, the rubber material is unloaded to obtain a second-stage mixed rubber.

[0058] Three-stage mixing: add the second-stage compound rubber, sulfur and acce...

Embodiment 2

[0059] Embodiment 2: The formulation of the rubber compound is shown in Table 1.

[0060] One-stage mixing: In the internal mixer, the filling factor is 0.7±0.02, add all the raw rubber (solution polystyrene butadiene rubber, butadiene rubber and 3,4-isoamyl rubber), white carbon black and carbon black, silane The coupling agent is mixed. During mixing, the temperature of the rubber material is controlled at 160°C±5°C, and the mixing time is 180 seconds. After the mixing is completed, the rubber material is unloaded to obtain a section of mixed rubber.

[0061] Two-stage mixing: Put the first-stage compound rubber, zinc oxide, stearic acid, anti-aging agent, and plasticizer into the internal mixer for mixing. The mixing temperature is controlled at 135±5°C, and the mixing time is 240 seconds. After the mixing is completed, the rubber material is unloaded to obtain a second-stage mixed rubber.

[0062] Three-stage mixing: add the second-stage compound rubber, sulfur and acce...

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Abstract

The invention relates to a high-slippery-resistance tire tread rubber composite material and a preparation method thereof and belongs to the technical field of rubber. The rubber composite material is prepared from, by weight, 100 parts of diolefine containing rubber (specifically including solution polymerized styrene-butadiene rubber, butadiene rubber and rare earth 3,4-isoprene rubber), 30-70 parts of a plasticizer, 50-120 parts of white carbon black, 5-30 parts of carbon black, 0.5-20 parts of a silane coupling agent, 0.5-3 parts of stearic acid, 2-5 parts of zinc oxide, 1-3 parts of sulfur, 1-5 parts of an anti-aging agent and 1-5 parts of an accelerant. By introducing the rare earth 3,4-isoprene rubber to a rubber formula of the rubber composite material, a Tan delta value when the rubber composite material is at 0 DEG C is remarkably improved, and meanwhile the Tan delta value when the rubber composite material is at 60 DEG C is reduced. Accordingly, the slippery-resistance performance of tires is improved, and the rolling resistance of the tires is reduced on the premise that the abrasion resistance performance of the tires is not affected.

Description

technical field [0001] The invention relates to the technical field of rubber, in particular to a high-wet-skid-resistant tire tread rubber composite material and a preparation method thereof. Background technique [0002] Excellent wet skid resistance, low rolling resistance and high wear resistance are the three key indicators of high-performance tires. The three major performances of tires have a devil's triangle law, which means that it is difficult to improve one of the performance indicators without affecting the other two performances. These properties of a tire depend to a large extent on the viscoelastic properties of the rubber material from which the tire is made. From the perspective of rubber viscoelasticity, the rolling resistance of tire rubber can be characterized by the tanδ value at 60°C in its dynamic viscoelastic spectrum, the lower the value, the lower the rolling resistance of the tire; the wet skid resistance of tire rubber is determined by the dynami...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L9/06C08L9/00C08K13/02C08K3/36C08K3/04C08K5/09C08K3/22
CPCC08K2201/006C08L9/06C08L2205/02C08L2205/025C08L2205/035C08L9/00C08L91/00C08K13/02C08K3/36C08K3/04C08K5/09C08K2003/2296Y02T10/86
Inventor 李世辉崔志勇崔冬梅
Owner CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
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