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Low-rolling-resistance wet-skid-resistant abrasion-resistant tire tread formula and preparation method thereof

A low rolling resistance, tire tread technology, applied in the direction of rolling resistance optimization, special tires, tire parts, etc., can solve the problems of reduced tire service life, poor wet skid resistance, high tread hardness, etc., and achieve mechanical performance improvement , improve grip, excellent wear resistance

Active Publication Date: 2015-04-22
KENDA RUBBER CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the existing ordinary low rolling resistance tires are poor in wet skid resistance, and the road surface is easy to slip in rainy days, causing serious consequences. The main reason is that ordinary low rolling resistance tires have high tread hardness and low elasticity.
At the same time, due to the selection of the main material of the existing ordinary low rolling resistance tires, the wear resistance is poor, and the wear volume of the rubber material can reach 0.658 cm 3 / 1.61km, the service life of the tire is greatly reduced, so its wear resistance must be improved

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0028] A method for preparing a low rolling resistance anti-wet skid and wear-resistant tire tread formula, the low rolling resistance anti-wet skid wear-resistant tire tread formula is as the above-mentioned low rolling resistance anti-wet skid wear-resistant tire tread formula, and its synthesis steps are as follows:

[0029] (1). Put in natural rubber, butadiene rubber, and solution-polymerized styrene-butadiene rubber, and mix for 30-40 seconds at a mixing temperature of 80-100°C and a pressure of 0.56-0.64MPa;

[0030] (2). Put in 1 / 2 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;

[0031] (3). Add another 1 / 2 highly dispersed white carbon black and knead for 40-50 seconds at a mixing temperature of 100-125°C and a pressure of 0.51-0.59MPa;

[0032] (4). Put in the operating oil to adjust the mixing conditions, mixing for 150-200 seconds, mixing temperature 120-14...

Embodiment 1

[0040] Raw material components: 25 parts of natural rubber, 75 parts of solution polystyrene butadiene rubber, 60 parts of highly dispersed white carbon black, 10 parts of coupling agent Si69 and 10 parts of process oil.

[0041] The preparation process is carried out in an internal mixer:

[0042] (1). Put in natural rubber and solution-polymerized styrene-butadiene rubber, mix for 30-40 seconds, mix at a temperature of 80-100°C, and a pressure of 0.56-0.64MPa;

[0043] (2). Put in 1 / 2 highly dispersed white carbon black and coupling agent and mix for 30-40 seconds, the mixing temperature is 90-110°C, and the pressure is 0.56-0.64MPa;

[0044] (3). Add another 1 / 2 highly dispersed white carbon black and knead for 40-50 seconds at a mixing temperature of 100-125°C and a pressure of 0.51-0.59MPa;

[0045] (4). Put in the operating oil to adjust the mixing conditions and mix for 150-200 seconds, the mixing temperature is 120-145°C, and the pressure is 0.51-0.59MPa;

[0046] (5...

Embodiment 2

[0050] Raw material components: 20 parts of natural rubber, 20 parts of butadiene rubber, 60 parts of solution polystyrene butadiene rubber, 60 parts of highly dispersed white carbon black, 10 parts of coupling agent Si69 and 10 parts of process oil.

[0051] The preparation process is carried out in an internal mixer:

[0052] (1). Add natural rubber, butadiene rubber, and solution-polymerized styrene-butadiene rubber, and knead for 30-40 seconds at a mixing temperature of 80-100°C and a pressure of 0.56-0.64MPa.

[0053] (2). Put in 1 / 2 highly dispersed white carbon black and coupling agent Si69 and knead for 30-40 seconds at a mixing temperature of 90-110°C and a pressure of 0.56-0.64MPa.

[0054] (3). Add another 1 / 2 highly dispersed white carbon black and knead for 40-50 seconds at a mixing temperature of 100-125°C and a pressure of 0.51-0.59MPa.

[0055] (4). Put in the operating oil to adjust the mixing conditions, mixing for 150-200 seconds, mixing temperature 120-145...

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Abstract

The invention discloses a low-rolling-resistance wet-skid-resistant abrasion-resistant tire tread formula. The low-rolling-resistance wet-skid-resistant abrasion-resistant tire tread formula comprises the following components: 10-20% of natural rubber, 0-20% of polybutadiene rubber, 20-60% of solution polymerized styrene butadiene rubber, 20-40% of high-dispersion white carbon black and 4-8% of a coupling agent SI69. The formula has the beneficial effects that: the hardness of a product is reduced, the wet-skid resistant performance is improved, so that a tire does not easily skid, and thus safety of the tire is improved; the abrasion resistant performance of the tire is excellent, and thus the service life of the tire is greatly increased; the rolling resistance of the tire is low and can reach an A level or a B level, various physical and mechanical properties of the tire are basically consistent to those of a tire having no low rolling resistance, and the advantages of the tire in road holding on a wet land and on a dry land are retained.

Description

technical field [0001] The invention relates to a low rolling resistance tire tread formula and a preparation method thereof, in particular to a low rolling resistance anti-wet skid wear-resistant tire tread formula and a preparation method thereof. Background technique [0002] The fuel consumption caused by the rolling resistance of tires (English abbreviation: RRC) accounts for 15% of the total fuel consumption. If the RRC is reduced by 30%, the fuel consumption will be reduced by 4.5%. Therefore, effectively reducing the RRC of the tires can not only save fuel, but also reduce greenhouse gas emissions. will play an important role. [0003] Ordinary tires have high rolling resistance, which is generally around F level, which wastes fuel. When the regulations are gradually implemented, the RRC level will be used as an indicator for consumers to consider. It is foreseeable that ordinary tires will gradually lose their competitive advantage. Therefore, the development and a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L7/00C08L9/00C08L9/06C08K9/00C08K3/36B60C1/00B29B7/72B29C47/00B29L30/00
CPCY02T10/86
Inventor 杨银明王该再叶荣贞
Owner KENDA RUBBER CHINA
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