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A kind of engineered retread tire tread containing graphene oxide and preparation method thereof

A technology for retreading tires and oxide stones, applied in special tires, tire parts, transportation and packaging, etc., can solve the problems that the huge advantages of graphene materials cannot be reflected, and it is difficult to disperse the tread rubber matrix.

Active Publication Date: 2022-02-11
HEILONGJIANG INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the effective dispersion of graphene in rubber is another technical bottleneck restricting the rapid development of graphene-based rubber composites. Due to the strong intermolecular van der Waals force and intramolecular π-π conjugation attraction of graphene, its It is difficult to disperse the tread rubber matrix in the form of a single layer or few layers. If the effective and uniform dispersion of graphene in the rubber cannot be achieved, the huge advantages of graphene materials will not be reflected

Method used

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  • A kind of engineered retread tire tread containing graphene oxide and preparation method thereof
  • A kind of engineered retread tire tread containing graphene oxide and preparation method thereof
  • A kind of engineered retread tire tread containing graphene oxide and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0031] (1) Weighing raw materials: 70 parts of natural rubber, 30 parts of styrene-butadiene rubber, 5 parts of white carbon black, 35 parts of carbon black N231, 3.5 parts of modified graphene oxide, 2 parts of accelerator NS, 2 parts of WK-901, 3 parts of WH-02, 1.6 parts of HNZ, 3 parts of stearic acid, 4 parts of zinc oxide, 2 parts of aromatic oil X-140, 0.5 parts of anti-ozone wax, 3 parts of tackifier C501;

[0032] (2) One-stage mixing: After mixing the base rubber and the tackifier evenly, add 1 / 3 of the total amount of carbon black by weighing, mix in the internal mixer for 15-20min, remove the glue, and place it for 10-20min; The speed of mixing is set to 45-55rpm / min, and the temperature of debinding is 150-155°C;

[0033] (3) Two-stage mixing: In the base rubber after the first-stage mixing is completed, add modified graphene oxide in two times, and add 2 / 3 of the total amount of modified graphene oxide for the first time, and the speed is 40-50rpm / min, after mi...

Embodiment 2

[0037] (1) Weighing raw materials: 70 parts of natural rubber, 30 parts of styrene-butadiene rubber, 5 parts of white carbon black, 35 parts of carbon black N231, 7.1 parts of modified graphene oxide, 2 parts of accelerator NS, 2 parts of WK-901, 3 parts of WH-02, 1.6 parts of HNZ, 3 parts of stearic acid, 4 parts of zinc oxide, 2 parts of aromatic oil X-140, 0.5 parts of anti-ozone wax, 3 parts of tackifier C501;

[0038] (2) One-stage mixing: After mixing the base rubber and the tackifier evenly, add 1 / 3 of the total amount of carbon black by weighing, mix in the internal mixer for 15-20min, remove the glue, and place it for 10-20min; The speed of mixing is set to 45-55rpm / min, and the temperature of debinding is 150-155°C;

[0039] (3) Two-stage mixing: In the base rubber after the first-stage mixing is completed, add modified graphene oxide in two times, and add 2 / 3 of the total amount of modified graphene oxide for the first time, and the speed is 40-50rpm / min, after mi...

Embodiment 3

[0043] (1) Weighing raw materials: 70 parts of natural rubber, 30 parts of styrene-butadiene rubber, 5 parts of white carbon black, 35 parts of carbon black N231, 12.7 parts of modified graphene oxide, 2 parts of accelerator NS, 2 parts of WK-901, 3 parts of WH-02, 1.6 parts of HNZ, 3 parts of stearic acid, 4 parts of zinc oxide, 2 parts of aromatic oil X-140, 0.5 parts of anti-ozone wax, 3 parts of tackifier C501;

[0044] (2) One-stage mixing: After mixing the base rubber and the tackifier evenly, add 1 / 3 of the total amount of carbon black by weighing, mix in the internal mixer for 15-20min, remove the glue, and place it for 10-20min; The speed of mixing is set to 45-55rpm / min, and the temperature of debinding is 150-155°C;

[0045] (3) Two-stage mixing: In the base rubber after the first-stage mixing is completed, add modified graphene oxide in two times, and add 2 / 3 of the total amount of modified graphene oxide for the first time, and the speed is 40-50rpm / min, after m...

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Abstract

The invention discloses an engineered retreaded tire tread containing graphene oxide, which comprises the following raw materials in parts by weight: matrix rubber, white carbon black, carbon black, modified graphene oxide, accelerator, vulcanizing agent, anti-aging agent, and auxiliary agent , stearic acid, zinc oxide, aromatic hydrocarbon oil, anti-ozone wax, tackifier; the present invention uses modified graphene solution as engineering retreading tire tread reinforcement material, and strengthens the formula design and preparation of tread by modified graphene Process design, sample preparation, and reinforcement performance testing make it better dispersed in the tread rubber matrix, so as to exert the maximum reinforcement effect and load transfer effect of graphene on the tread rubber matrix, and effectively improve the performance of engineering retreaded tire treads. The anti-collapse, abrasion, puncture resistance and other properties, especially the interface adhesion between the tread layer containing graphene oxide and the old carcass layer is further enhanced, which effectively reduces the impact of engineering retreaded tire tread and carcass. Delamination failure problem.

Description

technical field [0001] The invention relates to the technical field of tire retreading, in particular to an engineered retreaded tire tread containing graphene oxide and a preparation method. Background technique [0002] In recent years, the rapid development of industries such as mining and construction has led to an increase in the use of engineering vehicle tires. Because they usually operate in open-pit mining areas such as earth and stonework, they have large loads, frequent starting and braking, and are subject to sharp stones. Large impact force such as blocks, etc. lead to a relatively short service life of OTR tires, which will generate a large amount of waste tires. Therefore, the secondary retreading and reuse of waste OTR tires can further extend the service life of OTR tires, which is beneficial to Saving rubber resources and promoting green environmental protection, "black pollution" will be effectively transformed into "black energy". Graphene is the materia...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L7/00C08L9/06C08K13/06C08K9/04C08K3/04C08K7/24B60C1/00B29B7/28B29C35/02
CPCC08L7/00B60C1/0016B29B7/28B29C35/02C08L9/06C08K13/06C08K9/04C08K3/042C08K3/04C08K7/24
Inventor 王强姜莉齐晓杰王云龙王国田
Owner HEILONGJIANG INST OF TECH