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Tire tread and preparation method thereof

A tire tread and tread technology, applied in special tires, tire parts, rolling resistance optimization, etc., can solve problems such as use restrictions, and achieve the effects of reducing rolling resistance, increasing modulus, and improving wear performance

Inactive Publication Date: 2017-09-05
SHANDONG LINGLONG TIRE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the accelerator DPG contains carcinogenic aniline in the decomposition product during the rubber vulcanization process, so its use is subject to certain restrictions.

Method used

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  • Tire tread and preparation method thereof
  • Tire tread and preparation method thereof
  • Tire tread and preparation method thereof

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Embodiment Construction

[0013] A tire tread, said tread comprising: 1-60 parts of solution-polymerized styrene-butadiene rubber, 1-40 parts of natural rubber, 1.5 parts of environment-friendly accelerator, 10-100 parts of highly dispersed white carbon black, 1-8 parts Silane coupling agent, 10-50 parts of carbon black, and 1-20 parts of petroleum aromatic oil.

[0014] Wherein, the environment-friendly accelerator is a compound of zinc dialkyl dithiophosphate and a carrier.

[0015] In the solution-polymerized styrene-butadiene rubber, styrene is 0-60%, the vinyl content accounts for 10%-70%, and the Tg point is -10°C--50°C;

[0016] The natural rubber is a polymer of 1,4-cis polyisoprene;

[0017] The nitrogen adsorption specific surface area of ​​the highly dispersed white carbon black is 120-200m 2 / g, can directly or indirectly combine with rubber molecules physically and chemically;

[0018] The silane coupling agent is a sulfur-containing organosilicon compound with functional groups;

[00...

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Abstract

The invention relates to tire tread which comprises 1-60 parts of solution polymerized styrene-butadiene rubber, 1-40 parts of natural rubber, 1.5 parts of environment-friendly promoter, 10-100 parts of high-dispersion white carbon black, 1-8 parts of silane coupling agent, 10-50 parts of carbon black and 1-20 parts of petroleum-series aromatic hydrocarbon oil. Preferably, the environment-friendly promoter is a compound of zinc dialkyl dithiophsophate and a carrier. The invention further provides a preparation method of the tire tread. The preparation process is divided into three adding and mixing stages, and the environment-friendly promoter is added at the productive stage. The tire tread and the preparation method have the advantages that combined use of the solution polymerized styrene-butadiene rubber, the natural rubber, the high-dispersion white carbon black, the silane coupling agent and the environment-friendly promoter is considered important for promoting scorching time, improving modulus and wear performance and lowering rolling resistance. By using the environment-friendly promoter, toxic, allergic and carcinogenic risks in the operation process can be avoided.

Description

technical field [0001] The invention relates to a tire tread and a preparation method thereof. Background technique [0002] Accelerator DPG, also known as Accelerator D, has a chemical name of N,N'-diphenylguanidine. Its melting point is ≥140°C, its purity is ≥95.0%, and its relative density is 1.10-1.20. It is irritating when in contact with the skin. The existing accelerator DPG (N,N'-diphenylguanidine) combined with thiazole accelerators is widely used in the production of rubber products, and is also commonly used as a coating agent for silica-filled solution-polymerized styrene-butadiene rubber (SSBR). The SSBR compound has excellent physical properties and dynamic properties. However, the decomposition product of the accelerator DPG in the rubber vulcanization process contains carcinogenic aniline, so its use is subject to certain restrictions. [0003] Therefore, as one of the most important accelerators in the rubber industry, it has become a trend to use environm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L9/06C08L7/00C08L91/06C08K13/02C08K3/36C08K3/04C08K3/22C08K5/5398B60C1/00
CPCB60C1/0016C08K2003/2296C08L9/06C08L2205/03C08L7/00C08L91/06C08K13/02C08K3/36C08K3/04C08K3/22C08K5/5398Y02T10/86
Inventor 王锋张丽丽刘自光周兵花曙太邢涛
Owner SHANDONG LINGLONG TIRE
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