Rubber composite used for bonding belt ply of tire and tire manufactured with the composite

A technology of rubber composition and belt layer, which is applied to special tires, tire parts, transportation and packaging, etc., and can solve problems such as weak bonding

Inactive Publication Date: 2013-07-03
HANKOOK TIRE WORLDWIDE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, when the bonding thickness of the belt layer is reduced, the bond between the steel cord and the bonding rubber becomes weak cannot be avoided

Method used

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  • Rubber composite used for bonding belt ply of tire and tire manufactured with the composite
  • Rubber composite used for bonding belt ply of tire and tire manufactured with the composite
  • Rubber composite used for bonding belt ply of tire and tire manufactured with the composite

Examples

Experimental program
Comparison scheme
Effect test

manufacture example

[0121] [Manufacturing example: Manufacture of rubber composition]

[0122] Rubber compositions for bonding tire belts in Examples and Comparative Examples were produced using the compositions in Table 1 below. The rubber composition is produced according to the usual method for producing rubber compositions.

[0123] 【Table 1】

[0124]

[0125] (1) First raw material rubber: solution-polymerized styrene-butadiene rubber.

[0126] (2) The second raw material rubber: butadiene rubber.

[0127] (3) Silica: nitrogen adsorption specific surface area is 150m 2 / g, CTAB adsorption specific surface area is 150m 2 / g.

[0128] (4) Oil: oil having anti-ozone properties.

[0129] (5) Aramid short fiber particles: 3 strands of aramid short fibers (with an average length of 4 mm and an average diameter of 0.125 mm, expressed by the chemical formula 1 with respect to 100 parts by weight of aramid short fibers) 1.6 parts by weight of the dihydrate of the compound (Me is Na, m is 1,...

experiment example

[0130] [Experimental example: Measurement of physical properties of manufactured rubber composition]

[0131] Table 2 shows the physical properties of the rubber test pieces produced in the above Examples and Comparative Examples.

[0132] -Hardness is the result of measurement with a Shore A (Shore A) hardness tester. The hardness is a value indicating handling stability, and the higher the value, the better the handling stability is.

[0133] -100% and 300% modulus (kgf / m 2 ): Modulus is the tensile strength at 100% or 300% elongation, measured according to the ISO37 standard, and the higher the value, the better the strength.

[0134] - Abrasion loss (g): Abrasion loss is the Lambourn abrasion tester (Lambourn abrasion tester), which is a numerical value indicating the amount of rubber lost when it is rotated at room temperature, with a slip rate of 25% and a load of 1.5kg. The larger the value, the more excellent the wear performance.

[0135] -tanδ is measured by ARES...

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Abstract

The invention relates to rubber composite used for bonding a belt ply of a tire and the tire manufactured with the composite. The rubber includes 100 parts by weight of raw material rubber; 0.01 to 10 parts by weight of aromatic polyamide short fiber particles formed by more than two strands of aromatic polyamide short fiber and containing rubber penetrated between the twisted aromatic polyamide short fibers. The rubber composite used for bonding the belt ply of the tire can improves the rigidity of rubber used for bonding the belt ply of the tire, reducing bonding thickness and reducing hysteresis effect of the rubber used for bonding the belt ply of the tire, so that energy loss caused by the rotation of the tire can be reduced.

Description

technical field [0001] The present invention relates to a rubber composition for tire belt topping and a tire manufactured using the composition, in particular to improving the rigidity of the rubber for belt topping and reducing the topping gauge, A rubber composition for tire belt bonding capable of reducing the hysteresis effect of the rubber for bonding the belt layer so as to reduce energy loss when the tire rotates, and a tire manufactured using the composition. Background technique [0002] Generally, the intermediate portion from the carcass to the tread in a radial tire is called a belt layer, and organic matter and steel cords are used as materials for the belt layer. [0003] The belt layer is arranged at an angle close to a circle on the outer side of the tire, and is formed by overlapping a plurality of strong belt cords bonded with rubber. The belt layer is a very important part as a strength layer in a radial tire. [0004] The steel cord constituting the be...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L21/00C08L77/00C08K3/36B60C1/00
CPCB60C1/0016C08K3/36C08K5/41C08K7/02C08K9/04C08L9/00C08L9/06C08L21/00C08L81/06C08L2205/02
Inventor 白汉承
Owner HANKOOK TIRE WORLDWIDE
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