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 wh

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
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Example Embodiment

[0029] Example 1: The formula of the antistatic low rolling resistance tire tread material in parts by weight is shown in 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 mound is 0.7MPa. First, the solution polymerized styrene butadiene rubber and polybutadiene rubber are put into the mixing chamber of the internal mixer and mixed for 40 seconds. Put the silane coupling agent and the white carbon black dispersant into the mixing chamber and continue mixing for 120 seconds. The temperature of the rubber material reaches 120°C. The mound is lifted for 10 seconds, the rotor speed is adjusted to 30 rpm, and the mound is mixed for 90 seconds. At 150°C, the glue was discharged to obtain a mixed rubber, and the mixed rubber was cooled to room temperature in the air.

[0034] The second stage of mixing: the rotor...

Example Embodiment

[0037] Example 2: The formula of the antistatic low rolling resistance tire tread material in parts by weight is shown in Table 3:

[0038] Table 3 Formulation of Example 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 mound is 0.6MPa. First, the solution polymerized styrene butadiene rubber and polybutadiene rubber are put into the mixing chamber of the internal mixer, and mixed for 35 seconds. Put the silane coupling agent and the white carbon black dispersant into the mixing chamber and continue mixing for 110 seconds. The temperature of the rubber material reaches 130°C. The mound is lifted for 5 seconds, the rotor speed is adjusted to 30 rpm, and the mound is mixed for 90 seconds. At 145°C, the glue was discharged to obtain a mixed rubber, and the mixed rubber was cooled to room temperature in the air.

[0042] The second stage of mixing: the rotor ...

Example Embodiment

[0045] Example 3: The formula of the antistatic low rolling resistance tire tread material in parts by weight is shown in Table 4:

[0046] Table 4 Formulation of Example 3

[0047]

[0048] The specific mixing process of composite materials:

[0049] The first stage of mixing: the rotor speed of the internal mixer is 40 rpm, and the pressure of the mound is 0.7 MPa. First, the solution polymerized styrene butadiene rubber and polybutadiene rubber are put into the mixing chamber of the internal mixer and mixed for 40 seconds. Put the silane coupling agent and the white carbon black dispersant into the mixing chamber, continue to mix for 110 seconds, the temperature of the rubber material reaches 120℃, the mound is lifted for 10 seconds, the rotor speed is adjusted to 30rpm, the mound is mixed for 100 seconds, and the temperature of the compound is At 150°C, the glue was discharged to obtain a mixed rubber, and the mixed rubber was cooled to room temperature in the air.

[0050] The s...

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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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