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Antistatic low-rolling-resistance tyre tread material and preparation method thereof

A low rolling resistance, tire tread technology, applied in the rubber field, can solve the problems of reducing tire rolling resistance, electrostatic accumulation, etc., and achieve the effect of reducing rolling resistance, solving electrostatic accumulation, and improving wet skid resistance and wear resistance.

Active Publication Date: 2013-02-06
BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The purpose of this invention is to provide a kind of passenger car tire tread rubber material with low rolling resistance, which can reduce the rolling resistance of tires, and more importantly, solve the problem of white carbon black filling tread by adding graphene material. The problem of static electricity accumulation in composite materials, while improving the wet skid resistance and wear resistance of passenger car tire treads

Method used

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  • Antistatic low-rolling-resistance tyre tread material and preparation method thereof
  • Antistatic low-rolling-resistance tyre tread material and preparation method thereof
  • Antistatic low-rolling-resistance tyre tread material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Embodiment 1: The formula of antistatic low rolling resistance tire tread material proportion in parts by weight, see Table 2:

[0030] Table 2. Formulation of Example 1

[0031]

[0032] The specific mixing process of composite materials:

[0033] The first stage of mixing: the rotor speed of the internal mixer is 50rpm, and the pressure of the ram is 0.7MPa. First, put the solution-polymerized styrene-butadiene rubber and polybutadiene rubber into the mixing chamber of the internal mixer, and mix for 40 seconds. White carbon black, Put silane coupling agent and silica dispersant into the mixing chamber, continue mixing for 120 seconds, the temperature of the rubber material reaches 120 ° C, lift the weight for 10 seconds, adjust the rotor speed to 30 rpm, and mix with the weight for 90 seconds, the temperature of the rubber material is 150°C, deglue to obtain a section of mixed rubber, and a section of mixed rubber is cooled to room temperature in air.

[0034]Th...

Embodiment 2

[0037] Embodiment 2: The formula of antistatic low rolling resistance tire tread material proportion in parts by weight, see Table 3:

[0038] The formula of table 3 embodiment 2

[0039]

[0040] The specific mixing process of composite materials:

[0041] The first stage of mixing: the rotor speed of the internal mixer is 50rpm, and the pressure of the weight is 0.6MPa. First, put the solution-polymerized styrene-butadiene rubber and polybutadiene rubber into the mixing chamber of the internal mixer, and mix for 35 seconds. White carbon black, Put silane coupling agent and silica dispersant into the mixing chamber, continue mixing for 110 seconds, the temperature of the rubber material reaches 130 °C, lift the weight for 5 seconds, adjust the rotor speed to 30 rpm, and mix with the weight for 90 seconds, the temperature of the rubber material is 145°C, deglue to obtain a section of mixed rubber, and a section of mixed rubber is cooled to room temperature in air.

[0042...

Embodiment 3

[0045] Embodiment 3: The formula of antistatic low rolling resistance tire tread material proportion in parts by weight, see Table 4:

[0046] The formula of table 4 embodiment 3

[0047]

[0048] The specific mixing process of composite materials:

[0049] The first stage of mixing: the rotor speed of the internal mixer is 40rpm, and the pressure of the ballast is 0.7MPa. First, put the solution-polymerized styrene-butadiene rubber and polybutadiene rubber into the mixing chamber of the internal mixer, and mix for 40 seconds. White carbon black, Put silane coupling agent and silica dispersant into the mixing room, continue mixing for 110 seconds, the temperature of the rubber material reaches 120°C, lift the weight for 10 seconds, adjust the rotor speed to 30 rpm, and mix for 100 seconds with the weight, the temperature of the rubber material is 150°C, deglue to obtain a section of mixed rubber, and a section of mixed rubber is cooled to room temperature in air.

[0050]...

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Abstract

The invention relates to the technical field of rubber, in particular to an antistatic low-rolling-resistance tyre tread material and a preparation method thereof. The material is characterized by comprising the following constituents in parts by weight: 40-90 parts of solution polymerized styrene-butadiene rubber, 10-60 parts of polybutadiene rubber, 50-90 parts of white carbon black, 4-8 parts of silane coupling agent, 0.5-3 parts of graphene, 1-3 parts of white carbon black dispersing agent, 10-37.5 parts of aromatic oil, 2-5 parts of zinc oxide, 1-3 parts of stearic acid, 2-4 parts of anti-aging agent, 2-4 parts of accelerant and 1-3 parts of sulphur. Sizing materials are mixed by an internal mixer, the rotor speed, the sizing material mixing time and the temperature are controlled, and a composite material is prepared by the four-section mixing method. The rolling resistance of a tyre can be reduced; more importantly, the problem that the white carbon black filling tread composite material has static accumulation is solved by using the graphene; and the wet-skid resistance and the abrasion resistance of a tyre tread of a passenger vehicle can be improved.

Description

technical field [0001] The invention relates to the technical field of rubber, in particular to a preparation method of an antistatic low rolling resistance tread rubber composite material. Background technique [0002] With the development of automobiles in the direction of high speed, safety, energy saving and comfort, the requirements for high performance tires are also increasing year by year. [0003] As we all know, the most effective way to improve the wet skid resistance of tire tread materials while reducing its rolling resistance is to use silica instead of carbon black as a reinforcing filler for rubber. [0004] CN 101792545 B (publication date: April 11, 2012) discloses a tread rubber material for a tire with low rolling resistance. From the perspective of material composition, this tread material is characterized by the use of solution-polymerized styrene-butadiene rubber and butadiene rubber or natural rubber as the base material; the filler is mainly white c...

Claims

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Application Information

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IPC IPC(8): C08L9/06C08L9/00C08K13/02C08K3/36C08K3/04B29B7/10B29B7/28
CPCB29B7/7495Y02T10/86B29B7/286B29B7/283B29B7/90B29B7/183B29B7/823
Inventor 吴友平马建华张立群
Owner BEIJING UNIV OF CHEM TECH
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