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Run flat tyre sidewall supporting rubber and a preparing method thereof

A run-flat tire and support rubber technology, which is applied in the field of tires, can solve problems such as unstable performance, and achieve high modulus, improved heat aging resistance, and excellent heat aging resistance.

Inactive Publication Date: 2018-03-02
GUANGRAO GEE STAR TIRE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the existing run-flat tires can support a certain exercise function when the tire runs out of air and loses pressure, its performance is unstable, especially in various external environments such as complex road conditions. Low heat generation and flex resistance, as well as better and safer use after air loss and pressure loss, put forward higher requirements

Method used

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  • Run flat tyre sidewall supporting rubber and a preparing method thereof
  • Run flat tyre sidewall supporting rubber and a preparing method thereof
  • Run flat tyre sidewall supporting rubber and a preparing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The run-flat tire sidewall support rubber includes raw materials with the following weights:

[0028] Natural rubber STR20#30Kg, butadiene rubber BR9000 40Kg, butadiene rubber VCR412 30Kg; carbon black N550 25Kg, white carbon black 20Kg, silane coupling agent 2Kg, indirect method zinc oxide 5Kg, stearic acid 1Kg, anti-aging agent RD 1Kg, anti-aging Agent 4020 2Kg, tert-butylphenol alkyne resin 2Kg, insoluble sulfur 7020 2.5Kg, CZ accelerator 4.25Kg, 4,4`-dimorpholine disulfide 2.0Kg, anti-reversion agent 2Kg, anti-scorch agent CTP 0.15Kg.

[0029] The preparation method of this run-flat tire side support rubber, comprises the steps:

[0030] (1) Masterbatch mixing

[0031] Take the natural rubber SMR20# of the above weight, butadiene rubber BR9000, butadiene rubber VCR412, carbon black N550, white carbon black, silane coupling agent, indirect zinc oxide, stearic acid, anti-aging agent, tert-butylphenol alkyne resin Put it into the XM370 internal mixer, press the top b...

Embodiment 2

[0045] The run-flat tire sidewall support rubber includes raw materials with the following weights:

[0046] Natural rubber STR20#25Kg, butadiene rubber BR9000 45Kg, butadiene rubber VCR412 30Kg; carbon black N550 20Kg, white carbon black 15Kg, silane coupling agent 1.5Kg, indirect zinc oxide 4Kg, stearic acid 0.5Kg, antioxidant RD 0.5 Kg, anti-aging agent 4020 1.5Kg, tert-butylphenol alkyne resin 1.5Kg, insoluble sulfur 7020 2.4Kg, CZ accelerator 4Kg, 4,4`-dimorpholine disulfide 2.2Kg, anti-reversion agent 1.9Kg, anti-scorch Agent CTP 0.1Kg.

[0047] The preparation method of the run-flat tire sidewall support rubber is the same as in Example 1, and will not be described in detail here.

Embodiment 3

[0049] The run-flat tire sidewall support rubber includes raw materials with the following weights:

[0050]Natural rubber STR20#35Kg, butadiene rubber BR9000 35Kg, butadiene rubber VCR412 30Kg; carbon black N550 30Kg, white carbon black 25Kg, silane coupling agent 2.5Kg, indirect zinc oxide 6Kg, stearic acid 1.5Kg, antioxidant RD 1.5 Kg, anti-aging agent 4020 2.5Kg, tert-butylphenol alkyne resin 2.5Kg, insoluble sulfur 7020 2.6Kg, CZ accelerator 4.5Kg, 4,4`-dimorpholine disulfide 2.0Kg anti-reversion agent 2.1Kg, anti-scorch Agent CTP 0.2Kg.

[0051] The preparation method of the run-flat tire sidewall support rubber is the same as in Example 1, and will not be described in detail here.

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Abstract

The invention relates to the technical field of tyres, particularly run flat tyre sidewall supporting rubber and a preparing method thereof. Raw materials of the supporting rubber include natural rubber STR20#, polybutadiene, carbon black N550, white carbon black, a silane coupling agent, indirect-process zinc oxide, stearic acid, an antioxidant, 4-tert-butylphenol-acetylene resin, insoluble sulfur 7020, a CZ accelerant, 4,4'-dithiodimorpholine, an anti-reversion agent and a scorch retarder CTP. The supporting rubber has excellent properties superior to those of present products.

Description

Technical field: [0001] The invention relates to the technical field of tires, in particular to a run-flat tire side support rubber and a preparation method thereof. Background technique: [0002] Safety, comfort, and environmental protection are the current trends in the development of passenger tires. Run-flat tires are a new type of tire that mainly focuses on safety performance. Even if the tire internal pressure is lost to zero, the vehicle can still travel at a speed of 80km·h Driving more than 80km, this not only prevents the risk of car accidents caused by tire imbalance due to sudden loss of pressure, but also avoids the worry of tires breaking down due to loss of pressure in the field or halfway, and also saves the spare tire, thereby reducing the weight of the vehicle , reduce fuel consumption. [0003] The sidewall support compound formulation is the key to self-supporting run-flat tires. When the tire runs out of air and loses pressure, the sidewall support ru...

Claims

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Application Information

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IPC IPC(8): C08L9/00C08L7/00C08K13/02C08K3/04C08K3/36C08K3/22C08K5/09C08K3/06C08K5/43C08K5/47
CPCC08L9/00C08K2003/2296C08L7/00C08L2205/025C08L2205/035C08K13/02C08K3/04C08K3/36C08K3/22C08K5/09C08K3/06C08K5/43C08K5/47
Inventor 田家礼田凯姜晓亮裴玉鑫
Owner GUANGRAO GEE STAR TIRE CO LTD
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