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Ozone aging-resistant sidewall rubber used for light truck

A technology of ozone aging resistance and sidewall rubber, which is applied in the field of sidewall rubber, can solve the problems of rubber viscosity drop, excessive frosting, etc., and achieve the effects of prolonging service life, good ozone aging resistance, and avoiding viscosity drop

Inactive Publication Date: 2014-04-02
SHANDONG YONGTAI CHEM GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The object of the present invention is to provide a kind of ozone aging-resistant sidewall rubber for light trucks in view of the above-mentioned defects. This kind of sidewall rubber has good ozone aging resistance and crack resistance, and does not contain wax, avoiding The viscosity of the rubber material decreases and the surface is excessively bloomed

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] An ozone aging-resistant sidewall rubber for light trucks, consisting of the following raw materials in proportions by weight:

[0056] Butadiene rubber 33 parts

[0057] Polyisoprene rubber 53 parts

[0058] 4,4'-dithiodimorpholine 2.3 parts

[0059] Carbon black N339 16 parts

[0060] Aromatic oil 5.5 parts

[0061] 0.7 parts of stearic acid

[0062] Zinc oxide 2.1 parts

[0063] 2.2 parts of bis-(N-1,4-dimethylphenyl-p-phenylenediamino)-3,5-triazine.

[0064] Using the ozone aging-resistant sidewall rubber for light trucks described in Example 1, the 300% modulus is 14.4MPa, the breaking strength is 23MPa, the breaking elongation is 237%, the rolling loss is 2.0, and the abrasion is 0.520 g / km. At the same time, the sidewall rubber is resistant to ozone aging and prolongs the service life of the tire for 10 years.

Embodiment 2

[0066] The ozone aging-resistant sidewall rubber for light trucks is composed of the following raw materials in proportions by weight:

[0067] Butadiene rubber 34 parts

[0068] Polyisoprene rubber 50 parts

[0069] 4,4'-dithiodimorpholine 2.7 parts

[0070] Carbon black N339 14 parts

[0071] Aromatic oil 4.6 parts

[0072] Stearic acid 1.0 parts

[0073] Zinc oxide 2.4 parts

[0074] 1.9 parts of bis-(N-1,4-dimethylphenyl-p-phenylenediamino)-3,5-triazine.

[0075] Using the ozone aging-resistant sidewall rubber for light trucks described in Example 2, the 300% modulus is 15.7MPa, the breaking strength is 24.5MPa, the breaking elongation is 258%, the rolling loss is 3.2, and the wear is 0.550g / km. At the same time, the sidewall rubber is resistant to ozone aging and prolongs the service life of the tire by 12.5 years.

Embodiment 3

[0077] The ozone aging-resistant sidewall rubber for light trucks is composed of the following raw materials in proportions by weight:

[0078] Butadiene rubber 42 parts

[0079] 43.5 parts of polyisoprene rubber

[0080] 4,4'-dithiodimorpholine 2.9 parts

[0081] Carbon black N339 13.5 parts

[0082] Aromatic oil 5.2 parts

[0083] 0.85 parts of stearic acid

[0084] Zinc oxide 2.6 parts

[0085] 2.1 parts of bis-(N-1,4-dimethylphenyl-p-phenylenediamino)-3,5-triazine.

[0086] Using the ozone aging-resistant sidewall rubber for light trucks described in Example 3, the 300% modulus is 17.6MPa, the breaking strength is 28.1MPa, the breaking elongation is 273%, the rolling loss is 2.9, and the wear is 0.583g / km. At the same time, the sidewall rubber is resistant to ozone aging and prolongs the service life of the tire by 11.7 years.

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Abstract

The invention belongs to the technical field of production of vehicle rubber, specifically to ozone aging-resistant sidewall rubber used for a light truck. The sidewall rubber comprises the following raw materials: butadiene rubber, polyisoprene rubber, 4,4'-dithiodimorpholine, carbon black N339, aromatic hydrocarbon oil, stearic acid, zinc oxide and di-(N-1,4-dimethylphenyl-p-phenylene-diamino)-3,5-triazine. The sidewall rubber provided by the invention has good ozone aging resistance and crack resistance, does not contain wax and overcomes the problems of decrease of viscosity of a rubber compound and excess surface blooming.

Description

technical field [0001] The invention belongs to the technical field of rubber production for vehicles, and in particular relates to an ozone aging-resistant sidewall rubber for light trucks. Background technique [0002] A tire is a ring-shaped elastic body assembled on a rim or a wheel axle, which is a connecting body between a vehicle and a road, and is used for the running and sliding of a vehicle or an aircraft. A set of tires with an inner tube usually consists of 3 pieces: the outer tire, the inner tube, and the pad. Among them, the outer tire is the outer shell of the tire used to withstand various forces; the inner tube is used to maintain the internal pressure of the tire, and has a circular elastic body with a tire valve; the pad belt is used to protect the inner tire from the wear of the rim. ring belt. The tread is the driving surface, which is the crown part of the tire, that is, the rubber layer of the tire on the belt layer or the buffer layer. It has a cert...

Claims

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Application Information

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IPC IPC(8): C08L9/00C08K13/02C08K5/378C08K3/04C08K5/09C08K3/22C08K5/3492
Inventor 尤晓明李洋刘国华张兰鹏葛汝海燕纪祥
Owner SHANDONG YONGTAI CHEM GROUP
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