Formula of tread of low-rolling-resistance tire 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 high rolling resistance, waste of fuel, loss of competitive advantage of ordinary tires, etc., to improve viscoelasticity, rolling Low resistance effect

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

[0004] Ordinary tires have high rolling resistance, 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.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0035] A kind of preparation method of low rolling resistance tire tread formula, described low rolling resistance tire tread formula is as above-mentioned a kind of low rolling resistance tire tread formula, and its synthetic steps are as follows:

[0036] (1). Add natural rubber, butadiene rubber, solution polystyrene butadiene rubber, peptizer A-8, chemical anti-aging agent 6PPD, physical anti-aging agent microcrystalline wax, active agent ZNO, active agent SA, polyethylene glycol PEG ,, mixing for 30-40 seconds, mixing temperature 80-100 ℃, pressure 0.56-0.64Mpa.

[0037] (2). Put in 1 / 2 highly dispersed silica 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.

[0038] (3). Put in 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.

[0039] (4). Put in the operating oil to adjust the mixing conditions, mixing for ...

Embodiment 1

[0047] Raw material components: 20 parts of natural rubber, 20 parts of butadiene rubber, 60 parts of solution-polymerized styrene-butadiene rubber, 60 parts of high-dispersion white carbon black, 10 parts of coupling agent SI69, 1 part of peptizer A-8, 4 parts of anti-aging agent (2 parts 6PPD, 2 parts microcrystalline wax), 6 parts active agent (2 parts ZNO, 2 parts SA, 2 parts PEG), 3 parts vulcanizing agent S-325, 3 parts accelerator (2 parts NS, 1 part CTP) and 10 parts of process oil.

[0048] The preparation process is carried out in an internal mixer:

[0049] (1). Add natural rubber, butadiene rubber, solution-polymerized styrene-butadiene rubber, anti-aging agent, active agent, and peptizer, and mix for 30-40 seconds at a mixing temperature of 80-100°C and a pressure of 0.56-0.64Mpa.

[0050] (2). Put in 1 / 2 high-dispersion 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.

[0051] ...

Embodiment 2

[0059] Raw material components: 25 parts of natural rubber, 75 parts of solution polystyrene butadiene rubber, 60 parts of highly dispersed silica, 8 parts of coupling agent SI69, 1 part of peptizer A-8, 4 parts of antioxidant (2 parts of 6PPD, 2 parts of microcrystalline wax), 8 parts of active agent (3 parts of ZNO, 2 parts of SA, 3 parts of PEG), 3 parts of vulcanizing agent S-325, 3 parts of accelerator (2 parts of NS, 1 part of CTP) and 5 parts of operation Oil.

[0060] The preparation process is carried out in an internal mixer:

[0061] (1). Add natural rubber, solution-polymerized styrene-butadiene rubber, anti-aging agent, active agent, and peptizer, and knead for 30-40 seconds at a mixing temperature of 80-100°C and a pressure of 0.56-0.64Mpa.

[0062] (2). Put in 1 / 2 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.

[0063] (3). Put in 1 / 2 white carbon black and knead for 40-50 ...

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Abstract

The invention discloses a formula of a tread of a low-rolling-resistance tire and a preparation method thereof. The formula of the tread of the low-rolling-resistance tire comprises the following components: 10-20% of natural rubber, 10-20% of polybutadiene rubber, 20-40% of solution polymerized styrene butadiene rubber, 20-40% of high-dispersion white carbon black, 0.5-1% of a peptizer A-8, 1-2% of a chemical anti-aging agent 6PPD, 1-2% of a physical anti-aging agent microcrystalline wax, 1-3% of an active agent ZNO, 1-3% of an active agent SA, 1-3% of polyethylene glycol PEG, 1-3% of a vulcanizing agent S-325, 1-3% of an accelerant NS, 0.1-0.8% of a special accelerant CTP and 4-8% of a coupling agent SI69. The formula of the tread of the low-rolling-resistance tire has the beneficial effects that 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 non-low rolling resistance, and the advantages of road holding of the tire on a wetland and a dry land are retained.

Description

technical field [0001] The invention relates to a tire tread formula and a preparation method thereof, in particular to a low rolling resistance 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] EU EC661 and EC1222 regulations stipulate tire energy consumption classification: taking cars as an example, Class A RRC≤5.5, Class B 5.6≤RRC≤6.7, Class C 6.8≤RRC≤8.0, Class D Empty, Class E 8.1≤RRC≤9.2, F grade 9.3≤RRC≤10.5, G grade 10.6≤RRC. [0004] Ordinary tires have high rolling resistance, which is generally around F level, which wastes fuel. When the regulations are gradually ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L7/00C08L9/00C08L9/06C08L91/06C08L71/08C08K13/02C08K3/36B60C1/00B29B7/72B29C47/00B29L30/00
CPCY02T10/86
Inventor 杨银明王该再叶荣贞
Owner KENDA RUBBER CHINA
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