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Snow tire, snow tire tread rubber composition and rubber composition mixing method

A rubber composition and a technology for snow tires, which are applied in the field of mixing snow tires and snow tire tread rubber compositions and rubber compositions, can solve the problem that the tire's low-temperature grip performance decreases and the tread rubber content decreases. Tread hardness, migration and other issues, to improve the degree of hardening, improve dispersion, increase cold resistance and flexibility

Inactive Publication Date: 2019-08-30
ZHONGCE RUBBER GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The tire prepared by this method has low tread hardness and good low temperature resistance in the early stage of tire production. However, because the environmentally friendly aromatic oil is a small molecular material, it is easy to move out to the tire surface when it is filled in a large amount, making the tire in use. During the process, the oil content in the tread rubber is continuously reduced and the tread hardness is continuously increased, so that the low-temperature grip performance of the tire will gradually decrease.

Method used

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  • Snow tire, snow tire tread rubber composition and rubber composition mixing method
  • Snow tire, snow tire tread rubber composition and rubber composition mixing method
  • Snow tire, snow tire tread rubber composition and rubber composition mixing method

Examples

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Embodiment 1

[0038] Raw material composition: 36.0 parts of liquid polybutadiene rubber, 38.0 parts of natural rubber, 52.0 parts of rare earth butadiene, 10.0 parts of solution polystyrene butadiene rubber, 75.0 parts of white carbon black 1165 MP, 10.0 parts of N134 carbon black, 6.0 parts of silane coupling Agent TESPD, 25.0 parts of environmentally friendly aromatic oil, 2.5 parts of anti-aging agent 6PPD, 1.0 parts of anti-aging agent TMQ, 2.0 parts of microcrystalline wax, 2.5 parts of zinc oxide, 1.5 parts of stearic acid, 1.0 parts of a mixture of saturated and unsaturated fatty acid zinc, 2.0 Parts of sulfur, 3.0 parts of accelerator CZ, 2.5 parts of accelerator DPG.

[0039] Among them, the combined styrene in solution-polymerized styrene-butadiene accounts for 21% of the total weight of the polymer, and vinyl accounts for 68% of the total weight of butadiene. Saturated and unsaturated fatty acid zinc is plasticizer A, and carbon black 1165MP is a product of Solvay. N134 carbon ...

Embodiment 2

[0041] Raw material composition: 42.0 parts of liquid polybutadiene rubber, 38.0 parts of natural rubber, 52.0 parts of rare earth butadiene, 10.0 parts of solution polystyrene butadiene rubber, 75.0 parts of white carbon black 1165 MP, 10.0 parts of N134 carbon black, 6.0 parts of silane coupling Agent TESPD, 22.0 parts of environmentally friendly aromatic oil, 2.5 parts of anti-aging agent 6PPD, 1.0 parts of anti-aging agent TMQ, 2.0 parts of microcrystalline wax, 2.5 parts of zinc oxide, 1.5 parts of stearic acid, 1.0 parts of a mixture of saturated and unsaturated fatty acid zinc, 2.0 Parts of sulfur, 3.0 parts of accelerator CZ, 2.5 parts of accelerator DPG.

[0042] Among them, the combined styrene in solution-polymerized styrene-butadiene accounts for 21% of the total weight of the polymer, and vinyl accounts for 68% of the total weight of butadiene. Saturated and unsaturated fatty acid zinc is plasticizer A, and carbon black 1165MP is a product of Solvay. N134 carbon ...

Embodiment 3

[0044] Raw material composition: 47.0 parts of liquid polybutadiene rubber, 38.0 parts of natural rubber, 52.0 parts of rare earth butadiene, 10.0 parts of solution polystyrene butadiene rubber, 75.0 parts of white carbon black 1165 MP, 10.0 parts of N134 carbon black, 6.0 parts of silane coupling Agent TESPD, 20.0 parts of environmentally friendly aromatic oil, 2.5 parts of anti-aging agent 6PPD, 1.0 parts of anti-aging agent TMQ, 2.0 parts of microcrystalline wax, 2.5 parts of zinc oxide, 1.5 parts of stearic acid, 1.0 parts of a mixture of saturated and unsaturated fatty acid zinc, 2.0 Parts of sulfur, 3.0 parts of accelerator CZ, 2.5 parts of accelerator DPG.

[0045] Among them, the combined styrene in solution-polymerized styrene-butadiene accounts for 21% of the total weight of the polymer, and vinyl accounts for 68% of the total weight of butadiene. Saturated and unsaturated fatty acid zinc is plasticizer A, and carbon black 1165MP is a product of Solvay. N134 carbon bl...

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Abstract

The invention belongs to the field of rubber tire manufacturing, and discloses a snow tire, a snow tire tread rubber composition and a rubber composition mixing method. The snow tire tread rubber composition comprises in parts by weight: 100 parts of a rubber component, 35-55 parts of liquid polybutadiene rubber, and 70-90 parts of silica, wherein the mass percentage of the liquid polybutadiene rubber is 13% or more in the total composition. The liquid polybutadiene rubber is introduced into the composition, the plasticizing property of the liquid polybutadiene rubber is utilized, a part of environment-friendly oil is replaced by the liquid polybutadiene rubber, the oil content in tread rubber is reduced, and the liquid polybutadiene rubber has a relatively low glass transition temperature, so that effects of low hardness, low modulus, and low low-temperature hardening degree of the tread rubber can be achieved when a relatively large amount of the liquid polybutadiene rubber is used for filling.

Description

technical field [0001] The invention belongs to the field of rubber tire manufacture and comprises a snow tire, a snow tire tread rubber composition and a mixing method for the rubber composition. Background technique [0002] Snow tires are functional tires developed for cold regions, and are usually used in environments with low-temperature ice and snow roads. According to reports, currently more than 30% of the world's regions need to use snow tires, so the development of snow tires has broad market prospects and value. [0003] Under low temperature conditions, the tread of conventional summer tires will harden, which will lead to a sharp decline in the grip performance of the tires, seriously affecting driving safety. In order to solve this problem, the proportion of natural rubber and silica is usually increased in the tread formula to increase cold resistance and flexibility, and a large amount of environmentally friendly oil is filled to reduce the hardness of the t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L9/00C08L7/00C08L9/06C08L91/00C08L91/06C08K13/02C08K3/36C08K3/04C08K3/22C08K5/09C08K3/06B60C1/00
CPCB60C1/0016C08K2003/2296C08L9/00C08L2205/025C08L2205/035C08L7/00C08L9/06C08L91/00C08L91/06C08K13/02C08K3/36C08K3/04C08K3/22C08K5/09C08K3/06
Inventor 黄大业任福君王丹灵任艳萍刘玄
Owner ZHONGCE RUBBER GRP CO LTD
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