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Tire sidewall rubber combination comprising 1,2-syndiotactic polybutadiene

A sidewall rubber and butadiene technology, applied in special tires, tire parts, rolling resistance optimization, etc., can solve the problem of high rolling resistance, reduce driving noise, retain wet grip, and retain dry handling. Effect

Inactive Publication Date: 2015-01-28
TRIANGLE TIRE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] On the other hand, ordinary tires now have relatively high rolling resistance, generally at E or C level. With the introduction of EU labeling regulations, the rolling resistance level will be an important indicator for consumers to consider

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A sidewall rubber composition containing 1,2-syndiotactic polybutadiene, which is prepared by kneading the following components in parts by mass:

[0026] Butadiene 25 1,2-Syndiotactic polybutadiene 30

[0027] Natural rubber 45 Carbon black 45

[0028] Environmentally friendly aromatic oil 12 Tackifying resin 3

[0029] Zinc oxide 3 Stearic acid 1

[0030] Sulfur 2.5 Accelerator 1.8

[0031] In this example, the pure component content of 1,2-syndiotactic polybutadiene is 93%, and the crystallinity is 39%.

[0032] The mixing method of the above-mentioned sidewall rubber composition is as the traditional sidewall compound. The comparison of the mixed product test data and the comparative examples is as follows:

[0033] 　 comparative example Example 1 Tensile Strength 16.1 18.2 100% modulus stress 1.5 2.8 300% modulus stress 6.0 9.1 Elongation at break 630 503 hardness 56 58 0℃Tanδ 0.2965 0.3198 60...

Embodiment 2

[0037] A sidewall rubber composition containing 1,2-syndiotactic polybutadiene, which is prepared by kneading the following components in parts by mass:

[0038] Butadiene 30 1,2-Syndiotactic polybutadiene 30

[0039] Natural rubber 40 Carbon black 48

[0040] Environmentally friendly aromatic oil 14 Tackifying resin 3

[0041] Zinc oxide 3 Stearic acid 1

[0042] Sulfur 2.5 Accelerator 1.8

[0043] The mixing method of the above-mentioned sidewall rubber composition containing 1,2-syndiotactic polybutadiene is as the traditional sidewall compound.

Embodiment 3

[0045] A sidewall rubber composition containing 1,2-syndiotactic polybutadiene, which is prepared by kneading the following components in terms of mass fraction:

[0046] Butadiene 30 1,2-Syndiotactic polybutadiene 35

[0047] Natural rubber 45 Carbon black 50

[0048] Environmentally friendly aromatic oil 16 Tackifying resin 3

[0049] Zinc oxide 3 Stearic acid 1

[0050] Sulfur 2.5 Accelerator 1.8

[0051] The mixing method of the above-mentioned sidewall rubber composition containing 1,2-syndiotactic polybutadiene is as the traditional sidewall compound.

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Abstract

The invention relates to the technical field of rubber, in particular to a tire sidewall rubber combination comprising 1,2-syndiotactic polybutadiene. 100 weight parts of rubber components serve as the standard, and the combination further includes, by weight, 35-65 parts of carbon black, 5-25 parts of environmentally-friendly aromatic oil, 1.0-5.0 parts of tackifying resin, 1.0-4.0 parts of zinc oxide, 0.5-2.5 parts of stearic acid, 1.5-3.5 parts of sulphur and 0.5-3.0 parts of accelerant. The rubber components include, by weight, 5-50 parts of polybutadiene rubber, 5-45 parts of 1,2 syndiotactic polybutadiene and 35-55 parts of natural rubber. According to the tire sidewall rubber combination comprising the 1,2-syndiotactic polybutadiene, the tire running noise is effectively lowered, the driving comfort is improved, the rolling resistance of a tire is relieved, the physical and mechanical performances of tires made of the tire sidewall rubber combination are basically identical with those of common tires, and the advantages of the wet land griping force and the dry land controllability of the tires are maintained.

Description

technical field [0001] The invention relates to the technical field of rubber, in particular to a sidewall rubber composition containing 1,2-syndiotactic polybutadiene. [0002] Background technique [0003] As we all know, with the rapid development of automobile industry technology, people's higher requirements for automobile safety, energy saving and comfort have brought new challenges to the only grounding part on the vehicle-tires. Therefore, Europe has formulated the corresponding tire labeling regulations-EC1222 / 2009, which pointed out that tires sold in the European market need to be labeled with grades, indicating performance indicators such as fuel efficiency, grip on wet roads, and rolling noise. Its purpose is to promote the reduction of automobile energy consumption through the enforcement of this regulation. With the introduction and implementation of the EU labeling law and Germany, other countries have also introduced corresponding labeling and grading regu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L7/00C08L9/00C08K13/02C08K3/04C08K5/01C08K3/22C08K5/09C08K3/06B60C1/00
CPCB60C1/0025C08L7/00C08L9/00C08L2205/02C08L2205/035C08L91/00C08K13/02C08K3/04C08K2003/2296C08K5/09C08K3/06Y02T10/86
Inventor 贾进义顾高照丁全勇焦文秀张海盟孙希华
Owner TRIANGLE TIRE
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