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Tread rubber for all-steel truck radial tire and preparation method thereof

A radial tire and tread rubber technology is applied to the tread rubber of an all-steel truck radial tire and its preparation field. Reaction active point, reduce energy consumption, make up for the effect of reinforcement

Inactive Publication Date: 2019-03-19
QINGDAO DOUBLESTAR TIRE IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in order to meet the tread reinforcement requirements, carbon nanotubes are used in a large amount and the production cost is high
In addition, because cracked carbon black dust is easy to fly, it brings great inconvenience to production

Method used

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  • Tread rubber for all-steel truck radial tire and preparation method thereof
  • Tread rubber for all-steel truck radial tire and preparation method thereof
  • Tread rubber for all-steel truck radial tire and preparation method thereof

Examples

Experimental program
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Effect test

preparation example Construction

[0041] The embodiment of the present invention also provides the above-mentioned preparation method for the tread rubber of the all-steel radial truck tire, comprising the following steps:

[0042] S1 Preparation of wet mixed rubber: disperse carbon nanotubes, graphene and cracked carbon black in water by ultrasonic treatment to form a filler slurry, mix the filler slurry with natural rubber by high-pressure jetting, and place it in a coagulation reactor Condensation in medium, dehydration and drying after coagulation, to obtain wet-mixed glue;

[0043] S2 three-stage mixing: add the above-mentioned wet mixed rubber, base rubber, active agent, carbon black, white carbon black, silane coupling agent and anti-aging agent together to mix in an internal mixer to obtain a master batch; Said one-stage masterbatch is added into internal mixer and mixed to obtain second-stage masterbatch; said second-stage masterbatch, accelerator and vulcanizing agent are added to internal mixer and ...

Embodiment 1

[0047] Tread rubber for all-steel radial truck tires, including the following components by weight:

[0048] The proportion of each component of tread rubber in Table 1 Example 1

[0049]

[0050] Among them, the diameter of carbon nanotubes is 30-50nm, and the length is 0.5-2μm; the thickness of graphene sheets is 1-4nm, and the two-dimensional size is 100-400nm; pyrolysis carbon black is waste tire thermal cracking carbon black, its The absorption value of dibutyl phthalate is (80~100)×10 -5 m 3 / kg, the iodine absorption value is 80~130g / kg, and the specific surface area is 60~80m 2 / g, heating loss at 125°C is 0.5% to 1.5%; nano-zinc oxide includes 80% primary particles with a particle size below 100nm and 20% primary particles with a particle size above 100nm; the specific surface area of ​​white carbon black is 120 ~200m 2 / g, the absorption value of dibutyl phthalate is 2.00~3.50cm 3 / g; when the white carbon black is dispersed in water to form a 5% aqueous solu...

Embodiment 2

[0055] Tread rubber for all-steel radial truck tires, including the following components by weight:

[0056] Each component distribution ratio of tread rubber in table 2 embodiment 2

[0057]

[0058] Wherein, the cis content of the butadiene rubber is more than 96%; the selection of other components is the same as in Example 1.

[0059] The above-mentioned preparation method for the tread rubber of all-steel radial truck tire comprises the following steps:

[0060] (1) Preparation of wet mixed rubber: disperse carbon nanotubes, graphene and pyrolysis carbon black in water by ultrasonic treatment to form filler water slurry, mix filler water slurry with natural rubber 20# through high-pressure jetting, and place in coagulation Coagulation is carried out in the reactor, after coagulation, dehydration and drying are carried out to obtain wet-mixed glue;

[0061] (2) Three-stage mixing: add the above-mentioned wet mixed rubber with matrix rubber, active agent, carbon black N...

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Abstract

The invention provides tread rubber for all-steel truck radial tire and a preparation method thereof, and belongs to the technical field of tread rubber. The tread rubber is prepared from the following components in parts by weight: 0 to 80 parts of matrix rubber, 30 to 153 parts of wet mixed rubber, 2 to 8 parts of an active agent, 0 to 50 parts of carbon black, 0 to 20 parts of white carbon, 0 to 4 parts of a silane coupling agent, 1 to 3 parts of an accelerator, 3 to 6 parts of an anti-aging agent and 1 to 2 parts of a vulcanizing agent, wherein the wet mixed rubber is prepared from 0.1 to3 parts of carbon nanotubes, 0.1 to 1 part of graphene, 10 to 50 parts of cracked carbon black and 20 to 100 parts of natural rubber, and is obtained by wet mixing; and the total number of parts of the natural rubber in the wet mixed rubber and the matrix rubber is 100. The tread rubber is excellent in material mechanical property, good in processing performance, low in production cost and favorable for promoting recycling of used tires.

Description

technical field [0001] The invention belongs to the technical field of tread rubber, in particular to a tread rubber for all-steel radial truck tires and a preparation method thereof. Background technique [0002] In recent years, with the rapid development of the global automobile industry, the number of automobiles in various countries is increasing day by day, followed by the accumulation of waste tires, which seriously endangers the environment on which human beings live and destroys the ecological balance. Countries around the world have begun to pay attention to waste Recycling of tires. At present, the most effective and environmentally friendly way to recycle waste tires is to use pyrolysis technology to treat waste tires. Pyrolysis waste tires undergo crushing, impurity removal, high-temperature pyrolysis, and removal of oil and gas generated by pyrolysis, and then flotation to remove steel wires. And other impurities, you can get high carbon material - pyrolysis c...

Claims

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Application Information

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IPC IPC(8): C08L7/00C08L9/00C08K13/02C08K3/04C08K3/22C08K5/09C08K3/36C08J3/20
CPCC08J3/205C08J2307/00C08K3/04C08K3/041C08K3/042C08K3/22C08K3/36C08K5/09C08K13/02C08K2003/2296C08K2201/003C08K2201/004C08K2201/006C08K2201/011C08L7/00C08L2205/025C08L2205/03C08L9/00
Inventor 王静黄义钢王建功王越张静孙钲
Owner QINGDAO DOUBLESTAR TIRE IND CO LTD
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