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Gross rubber for high wearable tyre and its prepn.

A high wear-resistant, tire-based technology, applied in special tires, tire parts, transportation and packaging, etc., to achieve the effects of low dynamic compression heat generation, high modulus-elongation stress, and excellent fatigue resistance

Inactive Publication Date: 2008-10-15
NORTHWESTERN POLYTECHNICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is still a lack of more rubber materials suitable for the production of tires, especially high-performance tires. Therefore, the development of rubber materials that can be used for the production of high-performance tires has become an urgent task for my country's rubber industry.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Formula: Eucommia gum: 30 parts, rubber additive 1: 35 parts, rubber additive 2: 35 parts, sulfur-containing accelerator: 2.5 parts, anti-aging agent: 1 part, others: 70 parts.

[0022] The above system is mixed on a double-roller machine at 50-80°C, and vulcanized at a temperature of 140-160°C and a pressure of 120-150MPa to obtain the desired product.

[0023] Performance:

[0024] Tensile strength ≥200kg / cm 2

[0025] Elongation at break ≥500%

[0026] Residual deformation ≥20%

[0027] 300% tensile strength ≥110 kg / cm 2

[0028] Dynamic stretch fatigue >120 minutes

[0029] (170 times / min, 200% fixed extension)

[0030] Abrasion (mg / min) <8.

Embodiment 2

[0032] Formula: Eucommia gum: 40 parts, rubber additive 1: 30 parts, rubber additive 2: 30 parts, sulfur-containing accelerator: 2.5 parts, anti-aging agent: 1 part, others: 70 parts.

[0033] The formula description and operating instructions of embodiment 2 are the same as embodiment 1.

[0034] Performance:

[0035] Tensile strength ≥170kg / cm 2

[0036] Elongation at break ≥400%

[0037] Residual deformation ≥15%

[0038] 300% tensile strength ≥130 kg / cm 2

[0039] Dynamic stretch fatigue >140 minutes

[0040] (170 times / min, 200% fixed extension)

[0041] Abrasion (mg / min) <8.

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Abstract

This invention relates to a kind of high wear-resistant tyre rubber and its preparation method. Eucommia ulmoides gum is blended with natural rubber, styrene-butadiene rubber, nitrile-butadiene rubber and cis-1, 4-polybutadiene rubber and vulcanized; and by varying the ratio of eucommia ulmoides gum to rubber additive 1 and eucommia ulmoides gum to rubber additive 2 in the ingredients, high wear-resistant tyre rubber is obtained. It has the technique characteristics of eucommia ulmoides gum, rubber additive 1, rubber additive 2, sulphur-containing enhancer and antioxidant. The preparation method is that, raw materials according to the ingredients mentioned above is blended in a double-roller machine for common rubber processing at a temperature of 50~80 deg. C and heated on a plate vulcanization machine to produce the desired high wear-resistant tyre rubber. It has the advantages of abundant raw materials source and simple preparation method. The obtained rubber is uniquely of extraordinary wear resistance and little rolling friction. It also has low dynamic compression heat, good fatigue resistance and skid resistance and comprehensive properties for tyre driving, and is a perfect kind of tyre materials for aviation.

Description

technical field [0001] The invention relates to a rubber material for high wear-resistant tires and a preparation method thereof. The rubber material for high wear-resistant tires is prepared by blending and vulcanizing technology with the characteristic raw material of Eucommia gum, a natural polymer material. Background technique: [0002] High-performance tires, that is, tires with low rolling resistance, high traction performance and high wear resistance, are currently a hot research topic in the tire industry in the world. The purpose of the research is to improve the high-speed driving safety, wear resistance and riding comfort of the tire, and also to reduce fuel consumption and save energy. One of the key measures to solve this problem is to develop tread materials that can meet the requirements of high-performance tires through the synthesis and processing of new rubbers. At present, in addition to the three general-purpose rubber types of natural rubber, low-tempe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L7/00C08L83/00C08L75/04C08L33/04C08K5/39B60C1/00
Inventor 岳红朱峰杨青芳
Owner NORTHWESTERN POLYTECHNICAL UNIV
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