Low rolling resistance tire rubber composition and application thereof

A rubber composition and low rolling resistance technology, applied in the field of tire rubber, can solve the problems of hysteresis loss, unfavorable tire rolling resistance, inability to take into account, conflicting wear resistance, etc., to improve tire rolling resistance, processing workability, and grip. And the effect of good wear resistance and difficult processing workability

Active Publication Date: 2018-11-06
CHENG SHIN RUBBER CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in high-performance car tires, various properties such as grip and skid resistance, rolling resistance, and wear resistance often conflict with each other and cannot be balanced
The rolling resistance of tir...

Method used

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  • Low rolling resistance tire rubber composition and application thereof
  • Low rolling resistance tire rubber composition and application thereof

Examples

Experimental program
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Effect test

preparation example Construction

[0050] The specific preparation process in the embodiment of the present invention is divided into three stages: the first stage, raw rubber, reinforcing filler and plasticizing system are added in proportion, and the mixing temperature is preferably 140-160°C; the second stage (re-mixing stage), zinc oxide, stearic acid, anti-aging agent, etc. are added in proportion, and the kneading temperature is preferably 140-160°C. In the final mixing stage, accelerators and sulfur are added, and the mixing temperature is preferably 90-115°C. After kneading, the embodiment of the present invention is subjected to a vulcanization step: vulcanize the unvulcanized rubber composition under pressure for 20 minutes at 160° C. to obtain a vulcanized rubber composition.

[0051] In addition, the present invention also provides the use of the low rolling resistance tire rubber composition as described above as a tire tread. Among them, the present invention has no special restrictions on tire t...

Embodiment 1

[0056] According to the components shown in Table 1, use a general Banbury internal mixer to prepare in a step-by-step mixing manner. In the first stage, raw rubber, reinforcing filler and plasticizing system are added in proportion, and the mixing temperature is 150°C. In the re-mixing stage, zinc oxide, stearic acid, anti-aging agent, etc. are added in proportion, and the mixing temperature is 150°C. In the final mixing stage, accelerator and sulfur are added, and the mixing temperature is 105°C.

[0057] After kneading, the unvulcanized rubber composition was vulcanized under pressure at 160° C. for 20 minutes to obtain a vulcanized rubber composition.

[0058] Table 1 Comparative Examples 1-2 of the present invention and the components of Examples 1-4 and their contents (numerical unit: % by weight)

[0059]

[0060]

Embodiment 2～4

[0062] According to the components shown in Table 1, the same method as in Example 1 was used to knead separately to obtain films.

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Abstract

The invention provides a low rolling resistance tire rubber composition and application thereof. The composition is prepared from the following ingredients in percentage by weight: 10 to 35 percent ofsolution polystyrene-butadiene rubber, X percent of emulsified polystyrene-butadiene rubber (X is greater than 0 but smaller than or equal to 25), Y percent of cis-rich polybutadiene (Y is greater than 0 but smaller than or equal to 15), 2 to 25 percent of reinforcing carbon black, 10 to 40 percent of silicon dioxide filling materials, 6 to 15 percent of silane coupling agents, Z percent of hydrocarbon resin (Z is greater than 0 but smaller than or equal to 5), 2 to 18 percent of enhancing system containing amorphous silica spherical particles, fatty acid zinc salt and processing oil. All ingredients jointly act in a certain proportion, so that the tire rubber composition can improve the tire rolling resistance and the workability; good performance compromise is realized on rolling resistance, road holding force and abrasion performance; the problem that the workability is difficult when the use quantity of reinforcing fillers is high can be solved; the low rolling resistance tire rubber composition is particularly suitable for being applied to high-performance tire tread rubber.

Description

technical field [0001] The invention relates to the technical field of tire rubber, in particular to a tire rubber composition with low rolling resistance and its application. Background technique [0002] In recent years, with the rapid development of my country's economy, the use of automobiles has increased rapidly, and the pollution of the environment has become increasingly serious. Among them, how to reduce carbon emissions and energy consumption is a common challenge faced by all countries. For example, in the development of automobile tires, it is necessary to develop green tires with low hysteresis loss and wear resistance to meet the requirements of energy saving and carbon reduction. [0003] In the development of tire rubber compositions in the past, diene rubber such as natural rubber or butadiene rubber has lower hysteresis loss, and thus is widely used in fuel-efficient tires. Moreover, research has found that highly dispersed silica, as a reinforcing filler,...

Claims

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Application Information

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IPC IPC(8): C08L9/08C08L9/06C08L9/00C08L57/02C08L91/00C08K13/04C08K3/04C08K3/36C08K5/098C08K3/22C08K7/18B60C1/00
CPCB60C1/0016C08K2003/2296C08K2201/003C08K2201/006C08K2201/014C08L9/06C08L9/08C08L2205/02C08L2205/035C08L9/00C08L57/02C08L91/00C08K13/04C08K3/04C08K3/36C08K5/098C08K3/22C08K7/18Y02T10/86
Inventor 罗才仁
Owner CHENG SHIN RUBBER CHINA
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