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Rubber composition for high-performance tire and production process thereof

A rubber composition and high-performance technology, applied in the field of tire rubber, can solve the problems affecting the dispersion and physical properties of the compounding agent, and the wide distribution range of the molecular chain of the rubber compound, so as to achieve excellent wet skid resistance and good wear resistance of tires. , the effect of low rolling resistance

Inactive Publication Date: 2016-01-06
AEOLUS TIRE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The molecular chain distribution range of the rubber compound prepared by this process is wide, and it is easy to generate a large amount of carbon black gel, which affects the dispersion and physical properties of the compounding agent.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Basic formula: Weigh the following raw materials by weight: 85 parts of solution-polymerized styrene-butadiene rubber, 10 parts of high cis-1,4-nickel-based butadiene rubber, 5 parts of natural rubber, 5 parts of super wear-resistant carbon black, oligomeric 70 parts of highly dispersed silica, 7 parts of silane coupling agent, 10 parts of TDAE oil, 2.0 parts of zinc oxide, 1.0 part of stearic acid, 2.0 parts of anti-aging agent, 1.5 parts of pre-dispersed sulfur, and 5.0 parts of pre-dispersed accelerator.

[0050] Other masterbatch components except pre-dispersed sulfur and pre-dispersed accelerator) are produced by two-stage mixing with an intermeshing internal mixer, and the filling volume of the internal mixer is 60%;

[0051] Specific steps are as follows:

[0052] Masterbatch mixing process: Add solution-polymerized styrene-butadiene rubber, high-cis-1,4-nickel-based butadiene rubber, and natural rubber to the internal mixer. The speed of the internal mixer is 40...

Embodiment 2

[0055] Basic formula is with embodiment 1.

[0056] Except for pre-dispersed sulfur and pre-dispersed accelerator, other masterbatch components are produced by one-time mixing of two intermeshed internal mixers connected in series, and the filling volume of internal mixers is 70%;

[0057] Masterbatch mixing process: add solution-polymerized styrene-butadiene rubber, high-cis-1,4-nickel-based butadiene rubber, and natural rubber to the internal mixer. Oligomeric high-dispersion silica and silane coupling agent, pressurize for 20s, raise the top bolt and add some TDAE oil, reduce the speed of the internal mixer to 30rpm and pressurize for 40s, discharge glue until the second machine without the top bolt meshes Type internal mixer, add zinc oxide, stearic acid, carbon black and anti-aging agent components, automatically control the constant temperature of 140°C to mix evenly, and discharge glue to the open mixer;

[0058] Sulfur addition process: open the mill for 10 minutes, r...

Embodiment 3

[0060] Basic formula: 90 parts of solution-polymerized styrene-butadiene rubber, 10 parts of high cis-1,4-neodymium-based butadiene rubber, 100 parts of oligomeric high-dispersion silica, 10 parts of silane coupling agent, 40 parts of TDAE oil, 2.0 parts of zinc oxide, 1.0 parts of stearic acid, 2.0 parts of anti-aging agent, 2.0 parts of pre-dispersed sulfur, and 5.0 parts of pre-dispersed accelerator.

[0061] Except for pre-dispersed sulfur and pre-dispersed accelerator, other masterbatch components are produced by one-time mixing of two intermeshed internal mixers connected in series, and the filling volume of internal mixers is 70%;

[0062] Masterbatch mixing process: add rubber to the internal mixer, the speed of the internal mixer is 50rpm, pressurize for 20s to raise the top bolt, add silica and silane coupling agent, pressurize for 20s, raise the top bolt to refuel, and banbury Reduce the speed of the machine to 30rpm and pressurize for 40s, discharge the glue to the...

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Abstract

The invention discloses a rubber composition for a high-performance tire and a production process thereof. The composition comprises the following raw materials in parts by weight: 60 to 100 parts of SSBR, 0 to 20 parts of high cis-1,-4-nickle or neodymium cis-butadiene rubber, 0 to 20 parts of natural rubber, 0 to 20 parts of ultra anti-abrasion carbon black, 50 to 110 parts of low-polymer high-dispersion silicon dioxide, 5 to 15 parts of silane coupling agent, 0 to 40 parts of TDAE oil, 2.0 to 5.5 parts of zinc oxide, 1.0 to 3.5 parts of stearate, 1.0 to 3.5 parts of pre-dispersion sulfur, 2.0 to 6.0 parts of pre-dispersion accelerant and 0.5 to 2.0 parts of anti-aging agent. The tire adopting the tread formula is excellent in slippery resistance, excellent in brake distance, bend performance and high-speed stability, capable of acquiring optimum land grabbing performance on dry land or wet land, relatively low in rolling resistance and relatively good in wear resistance.

Description

technical field [0001] The invention relates to the field of rubber for tires and a pneumatic radial tire using the rubber composition, in particular to a rubber composition for high-performance tires and a production process thereof. Background technique [0002] With the development of the economy, the automobile industry puts forward higher and higher requirements for tire performance. High-speed driving requires tire tread rubber to have lower heat build-up, and the improvement of road conditions and the development of expressways also require more stringent requirements for tire rubber on wet skid resistance, environmental protection and energy saving. The EU Labeling Act, enforced in November 2012, sets limits on tire rolling resistance, wet grip and noise. [0003] The general predispersed masterbatch formula includes the following components: Powder (active ingredient) ② softening oil (plasticizer) ③ processing aid ④ rubber carrier. Powder is the active ingredien...

Claims

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Application Information

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IPC IPC(8): C08L9/06C08L9/00C08L7/00C08K13/02C08K3/04C08K3/36C08K3/22C08K5/09C08K3/06B60C1/00B29B7/74B29B7/72B29B7/28
CPCY02T10/86
Inventor 彭珂闫卫国李小光张继伟张爱平
Owner AEOLUS TIRE
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