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Rubber composition, screening method thereof and tire adopting composition

A rubber composition, rubber technology, applied in special tires, tire parts, transportation and packaging, etc., can solve problems such as inaccuracy

Active Publication Date: 2021-04-27
ZHONGCE RUBBER GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the latest research has found that the characterization of tanδ to Tg is inaccurate

Method used

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  • Rubber composition, screening method thereof and tire adopting composition
  • Rubber composition, screening method thereof and tire adopting composition
  • Rubber composition, screening method thereof and tire adopting composition

Examples

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Embodiment Construction

[0028] The present invention is further illustrated by the following examples, but the scope of the present invention is not limited to these examples.

[0029] Embodiments 1 to 5 and comparative example 1 and comparative example 2 are according to each component in the formula (parts by weight) shown in table 1, raw rubber except vulcanization accelerator and sulfur and compounding ingredients and banburying with 1.7 liters After 5 minutes of machine mixing, the sheet was released, and after standing for 24 hours, the vulcanization accelerator and sulfur were mixed in the mixture for 4 minutes with an 8 inch to obtain a rubber composition.

[0030] These rubber compositions were press-vulcanized at 160° C. for 20 minutes to prepare required abrasion samples and subjected to Akron abrasion tests. For the rolling resistance of tires, different tread compositions are used to make tires, and the composition and structure of other components of the tires are the same.

[0031] Th...

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Abstract

The invention relates to the field of tire production and manufacturing, in particular to a rubber composition with ultralow abrasion and ultralow rolling resistance for production, a screening method of the rubber composition and a tire adopting the composition. The rubber composition comprises two rubber components and a filler comprising at least white carbon black, wherein the rubber components are microscopically phase-separated into two phases in a rubber compound, and the two rubber components exhibits different peak temperatures in a temperature scanning curve of a viscous modulus G''. The rubber composition is ulcanized to obtain a G'' value and the peak temperature of a temperature scanning curve of T1 and T2, the temperature corresponding to the peak with a low temperature is recorded as T1, and the temperature corresponding to the peak with a high temperature is recorded as T2, wherein the relationship between T1 and T2 needs to meet the condition that T2-T1 is more than 0 DEG C and less than 20 DEG C. According to the invention, G'' is used for characterizing Tg, polymers with different Tg are not used for obtaining a partial microcosmic phase separation effect, and finally the tire tread rubber composition with good rolling resistance and abrasion balance is obtained.

Description

technical field [0001] The invention relates to the field of tire production and manufacturing, in particular to a rubber composition for production with ultra-low abrasion and ultra-low rolling resistance, a screening method thereof, and a tire using the composition. Background technique [0002] In recent years, due to the increasing calls for energy saving and emission reduction in automobiles, more attention has been paid to the low rolling resistance performance of tires. On the other hand, the problem of fine powder particles of tire tread vulcanizate after wear has also attracted new attention. The fine powder particles after tire wear have a three-dimensional network structure, which is more difficult to degrade in the natural environment than ordinary polymer materials. Therefore, for tire designers, on the premise of maintaining wet grip and other performances, it is an urgent problem to be solved to greatly balance the performance of wear and rolling resistance. ...

Claims

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Application Information

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IPC IPC(8): C08L9/06C08L7/00C08K7/26C08K5/548C08K13/04G01N25/00G01N33/44B60C1/00
CPCC08L9/06C08L7/00G01N25/00G01N33/445B60C1/0016C08K7/26C08K5/548C08K13/04Y02T10/86
Inventor 王丹灵陈生刘玄白浩倪宝刘辉
Owner ZHONGCE RUBBER GRP CO LTD
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