Rubber composition used for base rubber and tire side walls

A rubber composition and sidewall technology, applied in the field of base rubber and tire sidewall rubber composition, can solve the problems of yellowing and discoloration of colored rubber materials, failure to achieve dynamic ozone aging protection effect, weak protection effect, etc.

Inactive Publication Date: 2018-06-15
GUANGZHOU FENGLI RUBBER TIRE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, more non-polluting chemical anti-aging agents are usually added to the sidewall rubber of colored tires for ozone aging protection, but non-polluting chemical anti-aging agents have a weak protective effect on ozone aging, especially dynamic ozone aging, and cannot achieve sufficient dynamic ozone aging. Protective effect; and after a period of use, the color rubber is prone to yellowing and discoloration

Method used

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  • Rubber composition used for base rubber and tire side walls
  • Rubber composition used for base rubber and tire side walls
  • Rubber composition used for base rubber and tire side walls

Examples

Experimental program
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Effect test

Embodiment

[0055] According to the distribution ratio of each component in Table 1, each component is mixed in an internal mixer. The mixing method is a well-known mixing method for rubber technicians. Since the halogenated butyl rubber is used in the formula, When kneading, it should be noted that the kneading temperature should not exceed 140°C. The kneaded rubber can be extruded, molded, and vulcanized to produce tires. The tire production process is a process well known to technicians in conventional tire companies. The properties of the vulcanized rubber were tested using conventional testing methods, and the results are shown in Table 2.

[0056] Components and parts by weight of the embodiment of table 1

[0057]

[0058] Table 2 Examples 1-4 rubber performance evaluation results

[0059]

[0060]

[0061] The disclosed embodiments of the present invention have successfully produced colored tires. The tires have passed the indoor machine tool test, and the actual road t...

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Abstract

The invention provides a rubber composition used for tire side walls. The rubber composition comprises the following components in parts by weight: 100 parts of base rubber, 30 to 70 parts of a lightcolor filler, 0 to 10 parts of a silane coupling agent, 2 to 15 parts of a coloring agent, 0.5 to 8 parts of paraffin, 3 to 8 parts of an activating agent, 1 to 5 parts of an accelerant and 0.5 to 3 parts of a vulcanizing agent; the 100 parts of base rubber comprises 30 to 60 parts of natural rubber and butadiene rubber and 40 to 70 parts of halogenated butyl rubber and EPDM rubber in parts by weight; and the weight of natural rubber is greater than or equal to 50% of the total quantity of natural rubber and butadiene rubber. Compared with the prior art, no chemical anti-aging agent is added into the rubber composition provided by the invention, just through balance selectivity of the base rubber and the light color filler, the obtained colored rubber composition has excellent ozone agingresistance, flexing fatigue resistance and processability, and the appearance is colorful and the color is unlikely to change.

Description

technical field [0001] The invention belongs to the technical field of tires, in particular to a base rubber and a rubber composition for tire sidewalls. Background technique [0002] Traditional car tires are usually black, not beautiful and unique in appearance. Using colored rubber to produce colored tires, the appearance is novel and unique, with great personality. However, in order to obtain brightly colored rubber compounds, on the one hand, light-colored fillers must be used; on the other hand, polluting materials, especially polluting anti-aging agents, cannot be used. Moreover, for colored tire sidewall rubber, under the premise of bright color appearance, it also needs to have excellent ozone aging resistance and flex fatigue resistance. [0003] At present, more non-polluting chemical anti-aging agents are usually added to the sidewall rubber of colored tires for ozone aging protection, but non-polluting chemical anti-aging agents have a weak protective effect o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/28C08L7/00C08L9/00C08L23/16C08L91/06C08K3/36C08K3/22B60C1/00
CPCB60C1/0025C08K2003/2241C08L23/283C08L2201/08C08L2205/035C08L7/00C08L9/00C08L23/16C08L91/06C08K3/36C08K3/22
Inventor 曹晖王志远周荣杰何顺雄李键邱艳舞
Owner GUANGZHOU FENGLI RUBBER TIRE
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