Tire bead protective rubber and preparation method thereof

A kind of technology of spigot rubber and tires, which is applied in the field of rubber, can solve problems such as fatigue damage, accelerated aging of spigot rubber, and large heat generation of spigot rubber.

Inactive Publication Date: 2020-10-27
JIANGSU GENERAL SCI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problem of large heat generation of the traditionally designed spigot rubber has always been a technical difficulty that is difficult to overcome in the tire industry. The heat generation meeting will accelerate the aging of the spigot rubber, resulting in a decline in overall performance and fatigue damage.

Method used

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  • Tire bead protective rubber and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A tire rim protector, comprising the following components in parts by weight: 40 parts of natural rubber, 60 parts of high-cis-butadiene rubber, 2 parts of carbon nanotubes, 72 parts of carbon black, 4 parts of zinc oxide, hard 3 parts of fatty acid, 3 parts of anti-aging agent, 3 parts of tackifying resin, 4 parts of rubber filler oil, 1 part of rubber protective wax, 1.5 parts of accelerator, 1.4 parts of insoluble sulfur, 0.3 parts of anti-reversion agent, anti-scorch agent CTP0 .4 parts.

[0023] The carbon black is N330; the tackifying resin is Koresin super tackifying resin; the anti-reversion agent is dihydrated hexamethylene-1,6-dithiosulfate disodium salt; the anti-aging agent is anti-aging agent 4020, anti-aging agent RD and anti-aging agent 3100; the rubber filling oil is naphthenic oil; the accelerator is accelerator NS; the carbon nanotubes are multi-walled carbon nanotubes by vapor deposition method, with a diameter of 15nm, a length of 8um, and a specific...

Embodiment 2

[0029] A tire rim protector, comprising the following components in parts by weight: 40 parts of natural rubber, 60 parts of high-cis-butadiene rubber, 3 parts of carbon nanotubes, 70 parts of carbon black, 4 parts of zinc oxide, hard 3 parts of fatty acid, 3 parts of anti-aging agent, 4 parts of tackifying resin, 3 parts of rubber filler oil, 1 part of rubber protective wax, 1.5 parts of accelerator, 1.3 parts of insoluble sulfur, 0.2 parts of anti-reversion agent, anti-scorch agent CTP0 .4 parts.

[0030] The carbon black is N330; the tackifying resin is C5 tackifying resin; the anti-reversion agent is hexamethylene-1,6-dithiosulfuric acid disodium salt dihydrate; the anti-aging agent is anti-aging agent 4020 and anti-aging agent RD; The rubber filling oil is aromatic hydrocarbon oil; the accelerator is accelerator NS; the carbon nanotubes are multi-walled carbon nanotubes by gas phase precipitation, with a diameter of 12-15nm, a length of 5-12um, and a specific surface area...

Embodiment 3

[0036] A tire rim protector, comprising the following components in parts by weight: 35 parts of natural rubber, 65 parts of high-cis-butadiene rubber, 5 parts of carbon nanotubes, 66 parts of carbon black, 4 parts of zinc oxide, hard 3 parts of fatty acid, 3 parts of anti-aging agent, 3 parts of tackifying resin, 2-8 parts of rubber filler oil, 1 part of rubber protective wax, 1.4 parts of accelerator, 1.3 parts of insoluble sulfur, 0.3 parts of anti-reversion agent, anti-scorch Agent CTP 0.4 part.

[0037] The carbon black is N375; the tackifying resin is T6000 super tackifying resin; the anti-reversion agent is dihydrated hexamethylene-1,6-dithiosulfate disodium salt; the anti-aging agent is anti-aging agent 4020, anti-aging agent RD and anti-aging agent 3100; the rubber filler oil is aromatic oil; the accelerator is accelerator NS; the carbon nanotubes are multi-walled carbon nanotubes by vapor deposition method, with a diameter of 12nm, a length of 10um, and a specific su...

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Abstract

The invention provides tire bead protective rubber, which comprises the following components: 15-45 parts of natural rubber, 55-85 parts of high cis-butadiene rubber, 1-10 parts of carbon nanotubes, 50-70 parts of carbon black, 3-6 parts of zinc oxide, 2-4 parts of stearic acid, 2-5 parts of an anti-aging agent, 2-6 parts of tackifying resin, 2-8 parts of rubber filling oil, 1-2 parts of rubber protective wax, 1-3 parts of an accelerant, 1-3.5 parts of insoluble sulfur, 0.2-1 part of an anti-reversion agent and 0.1-0.5 part of a scorch retarder CTP. According to the tire bead protective rubberdisclosed by the invention, the carbon nanotubes are added, so that the heat generation of the bead protective rubber can be reduced, and meanwhile, the rigidity and tear resistance of the bead protective rubber can be improved; by adding the anti-reversion agent, the anti-reversion performance and fatigue resistance of the rubber can be improved; and a relatively proper process route is exploredfor industrial application and production of the carbon nanotubes in tires.

Description

technical field [0001] The invention relates to the technical field of rubber, in particular to a tire rim protector and a preparation method thereof. Background technique [0002] The tire bead protector is located in the bead position of the tire and directly contacts the rim, and the bead position is the concentrated area where the tire bears the load stress. Therefore, the bead protector is required to have strong rigidity, low heat generation and fatigue resistance And resistance to tear damage and other properties. [0003] At present, the design of the slit protector mainly adopts the vulcanization system with high carbon black filling content and high sulfur and low acceleration, which is used to improve the rigidity and tear resistance of the slit protector. The problem of large heat generation of the traditionally designed rim protector has always been a technical difficulty that is difficult to overcome in the tire industry. The heat generation will accelerate th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L9/00C08L7/00C08K13/02C08K3/04C08K3/22C08K5/09C08K3/06C08K5/41
CPCC08L9/00C08K2003/2296
Inventor 周平赵江华王宝鹏郑成威张洪学
Owner JIANGSU GENERAL SCI TECH
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