Formula and preparation method of snow tire with high tensile strength

A high tensile strength, snow tire technology, applied in the field of tire tread formulation and its preparation, can solve the problems of low tensile strength, low elasticity, high rolling resistance, and achieve low glass transition temperature of rubber, reduced rolling resistance, Good grip

Active Publication Date: 2013-12-18
KENDA RUBBER CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the winter in the north, there is ice and snow all the year round. Under the conditions of use of ordinary tires, as the temperature decreases, the hardness of the tread rubber increases, the tensile strength decreases, and the elasticity decreases. When the temperature drops to the inherent glass transition temperature of the rubber, the rubber appears Plastic properties, for this reason, tires suitable for snow are needed, but due to the selection of the main material of ordinary snow tires, the rolling resistance is relatively high

Method used

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preparation example Construction

[0026] The preparation method of high tensile strength snow tire formula, described high tensile strength snow tire formula is as above-mentioned high tensile strength snow tire formula, and its synthetic steps are as follows:

[0027] (1). Put in natural rubber, solution-polymerized styrene-butadiene rubber, polyethylene glycol PEG, and mix for 30-40 seconds at a mixing temperature of 80-100°C and a pressure of 0.56-0.64Mpa;

[0028] (2). Put in 2 / 3 highly dispersed white carbon black and coupling agent SI69 and mix for 30-40 seconds, the mixing temperature is 90-110°C, and the pressure is 0.56-0.64Mpa;

[0029] (3). Put in another 1 / 3 highly dispersed silica and knead for 40-50 seconds at a mixing temperature of 100-125°C and a pressure of 0.51-0.59Mpa;

[0030] (4). Put in the operating oil to adjust the mixing conditions, mixing for 150-200 seconds, mixing temperature 120-145 ℃, pressure 0.51-0.59Mpa;

[0031] (5). Cooling method: fan cooling 8H, natural cooling 16H, air ...

Embodiment 1

[0036] Raw material components: 20 parts of natural rubber, 80 parts of solution polystyrene butadiene rubber, 30 parts of highly dispersed white carbon black, 8 parts of coupling agent SI69, 3 parts of polyethylene glycol PEG and 10 parts of process oil.

[0037] The preparation process is carried out in an internal mixer:

[0038] (1). Put in natural rubber, solution-polymerized styrene-butadiene rubber, polyethylene glycol PEG, and mix for 30-40 seconds at a mixing temperature of 80-100°C and a pressure of 0.56-0.64Mpa;

[0039] (2). Put in 2 / 3 highly dispersed white carbon black and coupling agent SI69 and mix for 30-40 seconds, the mixing temperature is 90-110°C, and the pressure is 0.56-0.64Mpa;

[0040] (3). Put in another 1 / 3 highly dispersed silica and knead for 40-50 seconds at a mixing temperature of 100-125°C and a pressure of 0.51-0.59Mpa;

[0041] (4). Put in the operating oil to adjust the mixing conditions, mixing for 150-200 seconds, mixing temperature 120-14...

Embodiment 2

[0046] The high tensile strength snow tire formula includes the following components: 20% natural rubber, 60% solution polystyrene butadiene rubber, 10% highly dispersed white carbon black, 2% polyethylene glycol PEG and 8% coupling agent SI69.

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PUM

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Abstract

A formula of a snow tire with high tensile strength disclosed by the invention comprises the following components: 5-20% of natural rubber, 40-60% of solution polymerized styrene butadiene rubber, 10-40% of high-dispersion white carbon black, 1-3% of polyethylene glycol (PEG) and 4-8% of a coupling agent SI69. The technical scheme provided by the invention has the beneficial effects that the tire has high tensile strength and low hardness and good elasticity of tread rubber; the rubber has low vitrification point, can maintain soft under low ambient temperature, has good road holding performance, and reduces lag loss and rolling resistance. Meanwhile, the snow tire has physical mechanical properties basically consistent to those of a common tyre, and maintains the advantage in road holding on wet road and dry road.

Description

technical field [0001] The invention relates to a tire tread formula and a preparation method thereof, in particular to a high tensile strength snow tire formula and a preparation method thereof. Background technique [0002] In winter in the north, there is ice and snow all the year round. Under the conditions of use of ordinary tires, as the temperature decreases, the hardness of the tread rubber increases, the tensile strength decreases, and the elasticity decreases. When the temperature drops to the inherent glass transition temperature of the rubber, the rubber shows Due to the characteristics of plastics, tires suitable for snow are needed, but due to the selection of main materials of ordinary snow tires, the rolling resistance is relatively high. Contents of the invention [0003] In order to solve the above-mentioned technical problems, the object of the present invention is to provide a high tensile strength snow tire formula and a preparation method thereof, whi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L9/06C08L7/00C08L71/08C08K3/04
Inventor 杨银明王该再叶荣贞
Owner KENDA RUBBER CHINA
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