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 The effect of low 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] 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 method for preparing a low rolling resistance tire tread formula. The low rolling resistance tire tread formula is the above-mentioned low rolling resistance tire tread formula. The synthesis steps are as follows:

[0036] (1). Put in natural rubber, butadiene rubber, soluble polystyrene butadiene rubber, peptizer A-8, chemical antioxidant 6PPD, physical antioxidant 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 high-dispersion white carbon black and coupling agent Si69 for mixing for 30-40 seconds, mixing temperature 90-110℃, pressure 0.56-0.64MPa.

[0038] (3). Put another 1 / 2 high-dispersion white carbon black into mixing for 40-50 seconds, mixing temperature 100-125℃, pressure 0.51-0.59MPa.

[0039] (4). Put the operating oil to adjust the mixing conditions, mixing for 150-200 seconds, mixing temperature 120-145℃, pressure 0.51-0.59MPa....

Embodiment 1

[0047] Raw material components: 20 parts of natural rubber, 20 parts of butadiene rubber, 60 parts of soluble polystyrene butadiene rubber, 60 parts of highly dispersed 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 process oil.

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

[0049] (1). Put natural rubber, butadiene rubber, soluble polystyrene butadiene rubber, antioxidant, active agent, peptizer, and mix for 30-40 seconds, mixing temperature 80-100℃, pressure 0.56-0.64MPa.

[0050] (2). Put in 1 / 2 high-dispersion white carbon black and coupling agent and mix for 30-40 seconds, mixing temperature 90-110℃, pressure 0.56-0.64MPa.

[0051] (3). Put another 1 / 2 high-dispersion white carbon black into mixing for...

Embodiment 2

[0059] Raw material components: 25 parts of natural rubber, 75 parts of soluble polystyrene butadiene rubber, 60 parts of high-dispersion white carbon black, 8 parts of coupling agent Si69, 1 part of peptizer A-8, 4 parts of antioxidant (2 parts of 6PPD, 2 parts microcrystalline wax), 8 parts active agent (3 parts ZnO, 2 parts SA, 3 parts PEG), 3 parts vulcanizing agent S-325, 3 parts accelerator (2 parts NS, 1 part CTP) and 5 parts operation oil.

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

[0061] (1). Put natural rubber, solution polymerized styrene butadiene rubber, antioxidant, active agent, peptizer, and mix for 30-40 seconds, mixing temperature 80-100℃, pressure 0.56-0.64MPa.

[0062] (2). Put in 1 / 2 white carbon black and coupling agent for mixing for 30-40 seconds, mixing temperature 90-110℃, pressure 0.56-0.64MPa.

[0063] (3). Put in 1 / 2 white carbon black and mix for 40-50 seconds, mixing temperature 100-125℃, pressure 0.51-0.59MPa.

[0064] (4)....

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Abstract

The invention discloses a tire tread formula with low rolling resistance and a preparation method thereof. The tire tread formula with low rolling resistance comprises the following components: 10-20% of natural rubber, 10-20% of butadiene rubber, soluble butadiene Benzene rubber 20-40%, highly dispersed white carbon black 20-40%, peptizer A-80.5-1%, chemical antioxidant 6PPD1-2%, physical antioxidant microcrystalline wax 1-2%, active agent ZNO1- 3%, active agent SA1-3%, polyethylene glycol PEG1-3%, vulcanizing agent S-3251-3%, accelerator NS1-3%, special accelerator CTP0.1-0.8% and coupling agent SI694- 8%. The beneficial effect of adopting the technical solution is that the tire has low rolling resistance, which can reach A grade or B grade, and its physical and mechanical properties are basically the same as those of non-low rolling resistance tires, and the advantages of tires in terms of wet and dry grip 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 Patents(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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