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
CN107129609AInactive Publication Date: 2017-09-05SHANDONG LINGLONG TIRE
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANDONG LINGLONG TIRE
Publication Date
2017-09-05
Estimated Expiration
Not applicable · inactive patent

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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.
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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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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