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Tread rubber of maglev train tire and preparation method of tread rubber

A technology for magnetic levitation trains and tire treads, which is applied in the field of tire rubber, can solve the problems of not being able to tread rubber, regardless of wear resistance, anti-herringbone cut resistance and collapse resistance, and achieves the improvement of semi-finished product qualification rate. Effect

Inactive Publication Date: 2016-12-07
SHANDONG YONGTAI CHEM GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since this sidewall reinforcing rubber can support the weight when the tire leaks, only the elastic modulus at high temperature is considered, and the wear resistance, herringbone notch resistance and chipping resistance are not considered, so it cannot be used as tread rubber use

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The maglev train tire tread rubber includes the following raw materials in parts by weight: 70 parts of natural rubber; 20 parts of vinyl polybutadiene rubber; 10 parts of reclaimed rubber; 20 parts of carbon black N550; 21 parts of arrowroot powder; 3.6 parts of castor oil; 0.7 parts of Simei powder; 1.4 parts of anti-aging agent 6PPD; 1.1 parts of anti-aging agent JOL; 0.8 parts of thiuram; 3.0 parts of sulfur.

[0025] The preparation method of the maglev train tire tread rubber comprises the following three stages of mixing:

[0026] (1) One-stage mixing: first, mix 70 parts of natural rubber with 20 parts of vinyl polybutadiene rubber, 10 parts of reclaimed rubber, 13 parts of polyvinyl alcohol, 3.6 parts of castor oil, 0.7 parts of Simei powder, and 1.4 parts of anti-aging agent 6PPD, 1.1 parts of anti-aging agent JOL, 20 parts of carbon black N550, and 2 / 3 of the total amount of 21 parts of arrowroot powder were added to the internal mixer for mixing in turn, and...

Embodiment 2

[0034] The maglev train tire tread rubber includes the following raw materials in parts by weight: 70 parts of natural rubber; 20 parts of vinyl polybutadiene rubber; 10 parts of reclaimed rubber; 34 parts of carbon black N550; 18 parts of arrowroot powder; 3.0 parts of castor oil; 1.1 parts of Simei powder; 1.2 parts of anti-aging agent 6PPD; 1.4 parts of anti-aging agent JOL; 0.7 parts of thiuram; 3.4 parts of sulfur.

[0035] The preparation method of the maglev train tire tread rubber comprises the following three stages of mixing:

[0036] (1) One-stage mixing: first, mix 70 parts of natural rubber with 20 parts of vinyl polybutadiene rubber, 10 parts of reclaimed rubber, 15 parts of polyvinyl alcohol, 3.0 parts of castor oil, 1.1 parts of silicon beauty powder, and 1.2 parts of antioxidant 6PPD, 1.4 parts of anti-aging agent JOL, 34 parts of carbon black N550, and 2 / 3 of the total amount of 18 parts of arrowroot powder were added to the internal mixer for mixing, and the...

Embodiment 3

[0044] The maglev train tire tread rubber includes the following raw materials in parts by weight: 70 parts of natural rubber; 20 parts of vinyl polybutadiene rubber; 10 parts of reclaimed rubber; 33 parts of carbon black N550; 20 parts of arrowroot powder; 3.5 parts of castor oil; 0.9 parts of Simei powder; 1.3 parts of anti-aging agent 6PPD; 1.2 parts of anti-aging agent JOL; 0.75 parts of thiuram; 3.2 parts of sulfur.

[0045] The preparation method of the maglev train tire tread rubber comprises the following three stages of mixing:

[0046](1) One-stage mixing: first, mix 70 parts of natural rubber with 20 parts of vinyl polybutadiene rubber, 10 parts of reclaimed rubber, 15 parts of polyvinyl alcohol, 3.5 parts of castor oil, 0.9 parts of Simei powder, and 1.3 parts of anti-aging agent 6PPD, 1.2 parts of anti-aging agent JOL, 33 parts of carbon black N550, 2 / 3 of the total amount of arrowroot powder 20 parts were added to the internal mixer for mixing in turn, and then d...

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Abstract

The invention belongs to the technical field of tire rubber and in particular relates to tread rubber of a maglev train tire and a preparation method of the tread rubber. The tread rubber of the maglev train tire is prepared from the following raw materials in parts by weight: 70 parts of natural rubber, 20 parts of vinyl polybutadiene rubber, 10 parts of reclaimed rubber, 15 to 35 parts of carbon black N550, 17 to 21 parts of radix puerariae starch, 13 to 15 parts of polyvinyl alcohol, 3.0 to 3.6 parts of castor oil, 0.7 to 1.1 parts of humite powder, 1.2 to 1.4 parts of an anti-ageing agent 6PPD, 1.1 to 1.4 parts of an anti-ageing agent JOL, 0.7 to 0.8 part of thiuram and 3.0 to 3.4 parts of sulfur. The tread rubber can consider the wearing resistance, heat generation resistance, herringbone cutting resistance and chunking resistance of the tire at a high temperature.

Description

technical field [0001] The invention belongs to the technical field of tire rubber, and in particular relates to a tire tread rubber for maglev trains and a preparation method thereof. Background technique [0002] In tires for maglev trains, when the maglev train makes an emergency landing, since the tire tread is subjected to large deformation and a large load, the heat generated by the tire is very large, and it is necessary to prevent friction between the tread and the belt layer with a small heat transfer coefficient. Adhesive peeling and chunks of tread rubber falling off. During normal departure and landing, consideration must also be given to preventing local early wear of the tread due to tread slippage on the track surface during a long period of time from landing or landing. Relative to the load, due to the small ground contact area of ​​the tire, the heat generated by the tread will increase significantly when the tire is subjected to the specified load. [000...

Claims

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Application Information

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IPC IPC(8): C08L7/00C08L9/00C08L17/00C08L29/04C08L91/00C08K13/02C08K3/04C08K3/06C08K5/40
CPCC08L7/00C08L2205/035C08L9/00C08L17/00C08L29/04C08L91/00C08K13/02C08K3/04C08K3/06C08K5/40
Inventor 尤晓明张国栋冯小波曹佃波张明
Owner SHANDONG YONGTAI CHEM GROUP
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