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High-performance tire tread rubber and preparation method thereof

A tire tread, high-performance technology, applied in special tires, tire parts, transportation and packaging, etc., can solve the problems of aromatic oil migration and pollution, and achieve the effects of reduced wear, improved tear strength, and reduced loss factor

Active Publication Date: 2019-01-11
SHANDONG HUAJU POLYMER MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] One of the purposes of the present invention is to solve the problem of migration and pollution of aromatic oil in tire use, provide a low molecular weight trans-butadiene-isoprene copolymer rubber that can participate in vulcanization and crosslinking and use it in tire tread rubber , to improve the processing and mixing performance of rubber materials, and at the same time participate in the role of vulcanization and crosslinking

Method used

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  • High-performance tire tread rubber and preparation method thereof
  • High-performance tire tread rubber and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0081] A high-performance tire tread rubber compound consists of the following components in parts by weight:

[0082] 80 parts of natural rubber;

[0083] Butadiene rubber 20 parts;

[0084] 10 parts of low molecular weight trans-butadiene-isoprene copolymer rubber;

[0085] Others are the same as Comparative Example 1.

[0086] The molar content of butadiene units in the low molecular weight trans-butadiene-isoprene copolymer rubber is 40.7%, the molar content of isoprene units is 59.3%, and the molar content of trans-1,4-structure is greater than 95% %, Mooney viscosity value (100°C, 3+4) is 21.6. The properties of the vulcanizate are shown in Table 1.

Embodiment 2

[0088] One-stage banburying process is:

[0089] Add natural rubber and butadiene rubber in the internal mixer, banbury for 1min, put in zinc oxide, stearic acid, anti-aging agent and anti-scorch agent, banbury for 1min; put in all carbon black, banbury for 2min; put in white carbon black and Silane coupling agent, banburying for 7min; cleaning the upper bolt; adding low molecular weight trans-butadiene-isoprene copolymer rubber, banburying for 7.5min, 150°C for rubber removal, and standing at room temperature for 1 hour to obtain a section of banbury rubber .

[0090] Others are the same as embodiment 1. The properties of the vulcanizate are shown in Table 1.

Embodiment 3

[0092] 73 parts of natural rubber;

[0093] Butadiene rubber 18 parts;

[0094] 9 parts of low molecular weight trans-butadiene-isoprene copolymer rubber;

[0095] Others are the same as embodiment 1. The properties of the vulcanizate are shown in Table 1.

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Abstract

The invention relates to a high-performance tire tread rubber and a preparation method thereof, wherein the high-performance tire tread rubber comprises, by mass, 60-90 parts of natural rubber, 0-20 parts of cis-1,4-polybutadiene rubber, 9-20 parts of a low molecular weight trans butadiene-isoprene copolymerization rubber, 40-60 parts of carbon black, 0-20 parts of white carbon black, 0-2 parts ofa silane coupling agent, 1-5 parts of zinc oxide, 1-5 parts of stearic acid, 0.3-3 parts of sulfur, 0.5-5 parts of an accelerator, 1-3 parts of an anti-aging agent, and 1-10 parts of other auxiliaryagents. According to the present invention, the tire tread rubber is modified with the low molecular weight trans butadiene-isoprene copolymerization rubber, such that the tensile strength of the vulcanized rubber is increased by 15-20%, the tear strength is increased by 1%-20%, the 60 DEG C loss factor is reduced by 4-20%, and the wear is reduced by 10-25%; and various performances of the tire tread rubber material of the present invention meet the performances of the tire tread rubber.

Description

technical field [0001] The invention relates to a high-performance tire tread rubber, in particular to the application of low molecular weight trans-butadiene-isoprene copolymerized rubber in the tire tread rubber and the preparation method of the high-performance tire tread rubber. Background technique [0002] China is a big tire producer and a big tire exporter. The implementation of the EU labeling law has caused a major impact on my country's tire industry, forcing my country's tire industry to continuously improve tire grades, develop new materials, and develop new formulas. The "Devil's Triangle" in tires: Rolling resistance, wear and wet skid resistance are important indicators that affect tire performance. In the rubber industry, softeners are usually used. Such substances usually contain aromatic hydrocarbon compounds, which are toxic to the human body and most of them are polluting. As the country pays more attention to environmental protection, the use of aroma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L7/00C08L9/00C08K3/36C08K3/04C08K3/22C08K5/09C08K3/06B60C1/00
CPCB60C1/0016C08K2003/2296C08L7/00C08L2205/025C08L9/00C08K3/36C08K3/04C08K3/22C08K5/09C08K3/06
Inventor 贺爱华马韵升邵华锋栾波王日国
Owner SHANDONG HUAJU POLYMER MATERIALS CO LTD
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