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A kind of aviation tire tread rubber and its preparation method and application

A technology for aviation tires and tread rubber, used in special tires, tire parts, transportation and packaging, etc.

Active Publication Date: 2022-05-03
中国化工集团曙光橡胶工业研究设计院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing tread rubber is difficult to meet the above performance requirements at the same time

Method used

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  • A kind of aviation tire tread rubber and its preparation method and application
  • A kind of aviation tire tread rubber and its preparation method and application
  • A kind of aviation tire tread rubber and its preparation method and application

Examples

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preparation example Construction

[0055] The present invention provides the preparation method of the aviation tire tread rubber described in the above scheme, comprising the following steps:

[0056] Mix the natural rubber masticated rubber. When the mixing temperature rises to 90~95℃, add multi-wall carbon nanotubes, multifunctional vulcanization activator and heat stabilizer to continue mixing. When the mixing temperature rises from 90~95℃ When the temperature rises from 95°C to 100-105°C, add medium and super wear-resistant carbon black, silica wet-process adhesive and silane coupling agent to continue mixing. When the mixing temperature rises from 100-105°C to 140-145°C, mix The obtained mixture is sliced, cooled and parked to obtain a section of mixed rubber;

[0057] Mixing the first-stage rubber compound, anti-tear resin, zinc oxide and anti-aging agent, when the mixing temperature rises to 120-125° C., the obtained mixture is cut into pieces, cooled and parked to obtain a second-stage rubber compound...

Embodiment 1～3

[0067] The preparation raw materials of Examples 1-3 are shown in Table 4.

[0068] The preparation method of aviation tire tread rubber is as follows:

[0069] A blend:

[0070] Put the natural rubber masticated rubber into the internal mixer, and the mixing temperature is raised from 80 °C to 90 °C; put the multi-walled carbon nanotubes, multi-functional vulcanization activators, and heat stabilizers into the internal mixer according to the proportion, and mix and mix. The mixing temperature is raised from 90°C to 100°C; the super wear-resistant carbon black, white carbon black wet-process adhesive, and silane coupling agent are put into the internal mixer in proportion, and mixed and mixed, and the mixing temperature is from 100°C to 100°C. 140°C; when the mixing temperature reaches 140°C, the mixture is discharged from the internal mixer to the upper and lower tablets of the tablet press, cooled, and parked for 16 hours to obtain a section of mixed rubber.

[0071] Two-s...

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Abstract

The invention relates to the technical field of aviation tires, in particular to an aviation tire tread rubber and its preparation method and application. In parts by mass, the aviation tire tread rubber includes the following raw materials: 88-92 parts of natural rubber, 46-50 parts of super wear-resistant carbon black, 12-18 parts of white carbon black wet-process rubber, silane coupling agent 2-3 parts, heat stabilizer 1-2 parts, anti-reversion agent 0.5-1 part, multi-functional vulcanization activator 1-3 parts, tear-resistant resin 1.5-2.0 parts, zinc oxide 3-5 parts, anti-aging 2-5 parts of agent, 2.1-2.3 parts of insoluble sulfur, 1.0-1.1 parts of accelerator, and 1-2 parts of multi-walled carbon nanotubes. The tread rubber of the present invention has low compression heat generation, high tear strength, good cutting resistance, good wear resistance, good flex cracking resistance, good ozone aging resistance, good thermal stability, and has tensile properties at the same time. It has the advantages of high tensile strength and elongation at break, and can be used in aviation tires.

Description

technical field [0001] The invention relates to the technical field of aviation tires, in particular to an aviation tire tread compound and a preparation method and application thereof. Background technique [0002] Tread rubber is a layer of rubber that the outermost layer of the tire is in contact with the road surface and has patterns printed on the surface. With the continuous improvement of the take-off and landing speed of new aircraft, the performance requirements of tires are getting higher and higher. Aeronautical tires take off and land at high speeds under high loads. Tread rubber requires high tensile strength, tear strength, low dynamic heat generation, good cutting resistance, good wear resistance, good flex crack resistance and thermal Good stability can ensure the safety of tire use. Due to the long storage time of the tire, the tread compound is required to have good ozone aging resistance. However, it is difficult for the existing tread compounds to meet...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L7/00C08L101/00C08K13/04C08K3/04C08K7/26C08K3/22C08K3/06B60C1/00
CPCC08L7/00B60C1/0016C08K2003/2296C08K2201/001C08K2201/011C08L2201/08C08L101/00C08K13/04C08K3/04C08K7/26C08K3/22C08K3/06C08K3/041
Inventor 俞华英王继泽孙乐华吴春齐彭文理
Owner 中国化工集团曙光橡胶工业研究设计院有限公司
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