High-strength heat-resistant tread rubber composition and preparation method thereof

A rubber composition and high-strength technology, applied in the field of rubber, can solve the problems such as strength to be further improved, tire blowout, poor heat resistance, etc., and achieve the effect of enhancing protection effect, preventing tire blowout, and good heat resistance

Inactive Publication Date: 2015-01-21
青岛黄海轮胎有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above-mentioned tires have poor heat resistance and are prone to tire blowouts.
The Chinese patent with application number 201210131553.1 provides a tread rubber composition for scraper tires used in underground mining. Although the tires made of this composition have good heat resistance, the strength needs to be further improved

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A high-strength heat-resistant tread rubber composition, consisting of the following components in parts by mass: 60 parts of natural rubber, 21 parts of butadiene rubber, 5 parts of microcrystalline wax, 7 parts of carbon black, 3 parts of sulfur, and anti-aging agent 2 parts, accelerator 3 parts, zinc oxide 5 parts.

[0023] Preparation:

[0024] (1) According to the above mass parts, set the internal mixer speed to 70-72rpm, add natural rubber, butadiene rubber and microcrystalline wax in the internal mixer and mix for 80-85 seconds, then add carbon black, and mix for 70-75 Seconds, lift the bolt, and get the mixture after pressing the bolt;

[0025] (2) Place the mixture obtained in step (1) in an open mill, the front roll speed of the open mill is 20-21rpm, the rear roll speed is 15-16rpm, and the roll temperature is 65-70°C, add sulfur, anti-aging agent, Accelerator and zinc oxide, mixed for 60-65 seconds to get the glue;

[0026] (3) Heating the glue in a mold...

Embodiment 2

[0028] A high-strength heat-resistant tread rubber composition, consisting of the following components in parts by mass: 85 parts of natural rubber, 32 parts of butadiene rubber, 15 parts of microcrystalline wax, 17 parts of carbon black, 10 parts of sulfur, and anti-aging agent 18 parts, 11 parts of accelerator, 12 parts of zinc oxide.

[0029] Preparation:

[0030] (1) According to the above mass parts, set the internal mixer speed to 70-72rpm, add natural rubber, butadiene rubber and microcrystalline wax in the internal mixer and mix for 80-85 seconds, then add carbon black, and mix for 70-75 Seconds, lift the bolt, and get the mixture after pressing the bolt;

[0031] (2) Place the mixture obtained in step (1) in an open mill, the front roll speed of the open mill is 20-21rpm, the rear roll speed is 15-16rpm, and the roll temperature is 65-70°C, add sulfur, anti-aging agent, Accelerator and zinc oxide, mixed for 60-65 seconds to get the glue;

[0032] (3) Heating the gl...

Embodiment 3

[0034] A high-strength heat-resistant tread rubber composition, consisting of the following components in parts by mass: 65 parts of natural rubber, 22 parts of butadiene rubber, 7 parts of microcrystalline wax, 8 parts of carbon black, 5 parts of sulfur, and anti-aging agent 5 parts, 6 parts of accelerator, 8 parts of zinc oxide.

[0035] Preparation:

[0036] (1) According to the above mass parts, set the internal mixer speed to 70-72rpm, add natural rubber, butadiene rubber and microcrystalline wax in the internal mixer and mix for 80-85 seconds, then add carbon black, and mix for 70-75 Seconds, lift the bolt, and get the mixture after pressing the bolt;

[0037] (2) Place the mixture obtained in step (1) in an open mill, the front roll speed of the open mill is 20-21rpm, the rear roll speed is 15-16rpm, and the roll temperature is 65-70°C, add sulfur, anti-aging agent, Accelerator and zinc oxide, mixed for 60-65 seconds to get the glue;

[0038] (3) Heating the glue in ...

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Abstract

The invention discloses a high-strength heat-resistant tread rubber composition and a preparation method thereof. The tread rubber composition consists of the following components in parts by mass: 60-85 parts of natural rubber, 21-32 parts of butadiene rubber, 5-15 parts of microcrystalline wax, 7-17 parts of carbon black, 3-10 parts of sulfur, 2-18 parts of anti-aging agent, 3-11 parts of accelerant and 5-12 parts of zinc oxide. The preparation method comprises the following steps: adding the natural rubber, butadiene rubber and microcrystalline wax into an internal mixer for mixing according to the mass parts, adding the carbon black, continuously mixing, extracting, and pressing, thereby obtaining a mixture; adding the mixture into an open mill, adding the sulfur, the anti-aging agent, accelerant and zinc oxide, mixing, thereby obtaining rubber cement; and heating and molding the rubber cement in a mold, thereby obtaining the high-strength heat-resistant tread rubber composition. The tread rubber composition prepared by the preparation method disclosed by the invention has the advantages of high strength, high heat resistance and capacities of prolonging the service life of tires and preventing a flat tire.

Description

technical field [0001] The invention relates to the technical field of rubber, in particular to a high-strength heat-resistant tread rubber composition and a preparation method thereof. Background technique [0002] Tires are circular elastic rubber products that are rolled on the ground and rolled on various vehicles or machinery. Usually installed on metal rims, it can support the body, buffer external impact, realize contact with the road surface and ensure the driving performance of the vehicle. The outermost layer of the tire is in contact with the road surface and has a pattern printed on the surface. It can make the tire have traction, buffer the impact and swing when driving, and prevent the cord layer from being cut and pierced. It is required to have high wear resistance, fatigue resistance, good aging resistance, high tensile strength, elasticity and toughness, and low heat generation during driving. [0003] In recent years, with the global warming effect, the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L7/00C08L9/00C08L91/06C08K13/02C08K3/04C08K3/06C08K3/22C08K5/3437C08K5/47B60C1/00
CPCB60C1/0016C08K2201/005C08L7/00C08L2201/08C08L2205/03C08L9/00C08L91/06C08K13/02C08K3/04C08K3/06C08K2003/2296C08K5/47C08K5/3437
Inventor 翟红波杨振枢韦洪屹
Owner 青岛黄海轮胎有限公司
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