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A kind of tread rubber based on synthetic rubber and its preparation method and application

A synthetic rubber and tread rubber technology, applied in special tires, tire parts, transportation and packaging, etc., can solve the problems of inability to produce aviation tire natural rubber and restrict development, and achieve the promotion of localization process and excellent wear resistance Effect

Active Publication Date: 2022-03-22
CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although my country is also a big country in the production and processing of natural rubber, due to the specific geographical location and climatic conditions, until now it is still unable to produce high-quality and high-grade natural rubber for the preparation of aviation tires, which has led to the development of my country's aviation tire industry. The backward position, related products can only be purchased or rented from abroad, which greatly limits the modernization process of my country's national defense and the development of the transportation industry

Method used

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  • A kind of tread rubber based on synthetic rubber and its preparation method and application
  • A kind of tread rubber based on synthetic rubber and its preparation method and application
  • A kind of tread rubber based on synthetic rubber and its preparation method and application

Examples

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preparation example Construction

[0051] The preparation method of the tread rubber of the present invention taking synthetic rubber as the base glue may further comprise the steps:

[0052] Step 1, taking each component by proportioning;

[0053] Step 2. Put cis-isoprene rubber, butadiene rubber and trans-isoprene rubber into an internal mixer with a temperature of 50-80°C and a rotation speed of 20-70rpm, and banbury for 1-3min; the preferred temperature The temperature is 50°C, the rotating speed is 25rpm, and the banburying time is 3min;

[0054] Step 3. Add anti-aging agent, activator, reinforcing agent and auxiliary agent to the internal mixer in step 2. After banburying for 5-10 minutes, discharge the glue and release the film, and park the film at 30-50°C for 18-24 hours , to obtain the banburying film; the preferred banburying time is 7min, and the film is parked at 30°C for 24h;

[0055] Step 4: Put the banbury rubber sheet obtained in Step 3 on the rolling mill with a roll temperature of 40-80°C, ...

Embodiment 1-7 and comparative example 1-2

[0062] The formulations of the tread rubbers of Examples 1-7 and Comparative Examples 1-2 are shown in Table 1. The preparation method is:

[0063] Step 1, taking each component by proportioning;

[0064] Step 2, putting natural rubber, cis isoprene rubber, butadiene rubber and trans isoprene rubber into an internal mixer with a temperature of 70° C. and a rotating speed of 25 rpm, and banburying for 3 minutes;

[0065] Step 3. Add anti-aging agent, activator, reinforcing agent and auxiliary agent to the internal mixer in step 2. After banburying for 7 minutes, discharge the glue and release the film. The film is parked at 30°C for 24 hours to obtain the banbury film;

[0066] Step 4: Put the banbury rubber sheet obtained in Step 3 on the rolling mill with a roll temperature of 50°C, and add vulcanizing agent and accelerator during the rolling process. After the rolling is uniform, the sheet is released, and the film is parked at 30°C for 24 hours to obtain Mixed rubber shee...

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Abstract

The invention relates to a tread rubber based on synthetic rubber, a preparation method and application thereof, and belongs to the technical field of tread rubber. The tread rubber based on synthetic rubber of the present invention comprises: 55-100 parts by weight of cis-isoprene rubber, 0-45 parts by weight of butadiene rubber, and 0-15 parts by weight of trans-isoprene rubber , 0.5-2.5 parts by weight of vulcanizing agent, 0.5-2 parts by weight of accelerator, 1.5-4 parts by weight of antioxidant, 3-10 parts by weight of activator and 35-60 parts by weight of reinforcing agent. The tread rubber has excellent wear resistance, and at the same time, the comprehensive performance is equal to or better than that of the tread rubber prepared from natural rubber, and is especially suitable for use as the tread rubber of aviation tires.

Description

technical field [0001] The invention belongs to the technical field of tread rubber, and in particular relates to a tread rubber based on synthetic rubber, a preparation method and application thereof. Background technique [0002] Aviation tires are the only part of the aircraft that is in contact with the ground, and the tread is the key component of the entire tire. The take-off and landing of the aircraft, as well as the transmission of traction and braking forces, are all achieved through the friction between the tire tread and the ground. Different from automobile tires of the same specification, the actual working conditions of aviation tires are more harsh, with the characteristics of high inflation pressure, high load, large impact, large deformation, wide temperature range, and complex environmental changes, which require suitable equipment The tread rubber material has the characteristics of high strength, high wear resistance, tear resistance, impact resistance, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L9/00C08K13/02C08K3/22C08K5/09C08K3/06B60C1/00
CPCC08L9/00B60C1/0016C08L2205/03C08L2205/025C08L2205/035C08K2003/2296C08K13/02C08K3/22C08K5/09C08K3/06
Inventor 杨小牛陈兆彬王晓建尹园孙洪国郇彦郑雅芳郑书轶
Owner CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
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