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Glue material for run-flat tire supporting glue, preparation method of glue material and run-flat tire

A technology for run-flat tires and support rubber, which is applied in the field of rubber materials for run-flat tire support rubber, and can solve problems such as sidewall breakage, ground contact, and vehicle inability to drive

Inactive Publication Date: 2018-02-23
QINGDAO FULUN TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the support rubber is not rigid enough, the run-of-the-air tire will sink, the rim will touch the ground, and the vehicle will not be able to drive; if the flex resistance and tear resistance are insufficient, the sidewall will break during the high-frequency compression release process Phenomenon, leading to tire failure
[0004] However, there is a certain contradiction between the rigidity, flex resistance and tear resistance of the support rubber, and it is difficult to balance

Method used

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  • Glue material for run-flat tire supporting glue, preparation method of glue material and run-flat tire
  • Glue material for run-flat tire supporting glue, preparation method of glue material and run-flat tire
  • Glue material for run-flat tire supporting glue, preparation method of glue material and run-flat tire

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0072] A rubber material for a run-flat tire support rubber, comprising the following components in parts by weight:

[0073] components

parts by weight

components

parts by weight

natural rubber

30

HMMM

1.5

Rubidium-based butadiene rubber

70

Phenolic Resin

3

Carbon black N660

30

Zinc Oxide Indirect Method

3

Silica

30

stearic acid

1

TESPT

4

insoluble sulfur

6

RF99

1

NS

1

[0074] The preparation method of the above-mentioned run-flat tire support rubber compound is as follows:

[0075] (1) According to the formula, add each component except the vulcanizing agent and accelerator into the internal mixer, mix for 3 minutes, and remove the glue when the temperature reaches 150°C to obtain a mixed rubber;

[0076] (2) After placing the above-mentioned one-stage mixed rubber for 8 hours, mix it in an internal mixer for 2 minutes, and remove the rubber when t...

Embodiment 2

[0079] A rubber material for a run-flat tire support rubber, comprising the following components in parts by weight:

[0080] components

parts by weight

components

parts by weight

natural rubber

50

Zinc Oxide Indirect Method

4

Rubidium-based butadiene rubber

50

stearic acid

1

Carbon black N660

50

insoluble sulfur

9

Silica

10

BYZGR

3

TESPT

2

Antiaging agent RD

1

RF99

1.5

Antiaging agent DMPPD

2

HMMM

2

Anti-reversion agent

0.5

Phenolic Resin

2

[0081] The preparation method of the above-mentioned run-flat tire support rubber compound is as follows:

[0082] (1) According to the formula, add each component except the vulcanizing agent and accelerator into the internal mixer, mix for 3 minutes, and remove the glue when the temperature reaches 150°C to obtain a mixed rubber;

[0083] (2) After placing the above-mentioned...

Embodiment 3

[0086] A rubber material for a run-flat tire support rubber, comprising the following components in parts by weight:

[0087]

[0088]

[0089] The preparation method of the above-mentioned run-flat tire support rubber compound is as follows:

[0090] (1) According to the formula, add each component except the vulcanizing agent and accelerator into the internal mixer, mix for 4 minutes, and remove the glue when the temperature reaches 160°C to obtain a mixed rubber;

[0091] (2) After placing the above-mentioned one-stage mixed rubber for 8 hours, mix it in an internal mixer for 2.3 minutes, and remove the rubber when the temperature reaches 145° C. to obtain the second-stage mixed rubber;

[0092](3) Put the above-mentioned two-stage compounded rubber for 8 hours, mix it together with the vulcanizing agent and accelerator in the internal mixer for 2.5 minutes, and discharge the rubber when the temperature reaches 105°C, and obtain the above-mentioned rubber for run-flat...

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Abstract

The invention provides a glue material for run-flat tire supporting glue, a preparation method of the glue material and a run-flat tire. The glue material comprises, by weight, 30-50 parts of naturalrubber, 50-70 parts of rubidium butadiene rubber, 30-50 parts of carbon black, 10-30 parts of white carbon black, 2-4 parts of silane coupling agents, 2-7 parts of tackifying resin, 4-8 parts of active agents, 6-9 parts of vulcanizing agents or 1-3 parts of accelerants. The glue material is prepared by mixing the components except for the vulcanizing agents and the accelerants, performing short-time secondary mixing and finally performing final mixing. The supporting glue formed after vulcanizing the glue material for the run-flat tire supporting glue has good rigidity, a rim of the tire cannot touch the earth in deflation, the tire stably runs, has high flexing resistance and tearing resistance and cannot break in high-frequency compression release process, and the buffer performance of the tire is ensured.

Description

technical field [0001] The invention belongs to the technical field of run-flat tires, and in particular relates to a rubber material for a run-flat tire support rubber, a preparation method thereof and a run-flat tire. Background technique [0002] With the popularization of automobiles, people pay more and more attention to their driving safety. All the mobility of the car needs to be realized by transmitting the force to the ground through the tire, so the performance of the tire directly affects the driving safety of the car. After the traditional tire is punctured during driving, the inner tube bursts, making the car uncontrollable and easily causing traffic accidents. The run-flat tire is a new type of tubeless tire, which can ensure that the car has the ability to drive in a short period of time even in the state of decompression or zero air pressure, which greatly improves the driving safety of the vehicle. [0003] When the tire is out of air, the run-flat tire re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L9/00C08L7/00C08L61/06C08L61/28C08K13/02C08K3/06C08K5/09C08K3/36C08K3/04
CPCC08L9/00C08K2201/003C08K2201/006C08L7/00C08L2205/02C08L2205/025C08L2205/035C08L61/06C08L61/28C08K13/02C08K3/06C08K5/09C08K3/36C08K3/04
Inventor 刘自金
Owner QINGDAO FULUN TECH
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