Rubber composition for bonding tire belt and tire manufactured using same

A technology of rubber composition and belt layer, which is applied in the direction of special tires, tire parts, transportation and packaging, etc., and can solve problems such as weakening of the bond

Inactive Publication Date: 2015-08-05
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 composition for bonding tire belt and tire manufactured using same
  • Rubber composition for bonding tire belt and tire manufactured using same
  • Rubber composition for bonding tire belt and tire manufactured using same

Examples

Experimental program
Comparison scheme
Effect test

manufacture example

[0121] [Production example: Production of rubber composition]

[0122] The rubber compositions for tire belt layer bonding of the Examples and Comparative Examples were produced using the composition of Table 1 below. The production of the rubber composition is based on a usual method of producing a rubber composition.

[0123] 【Table 1】

[0124]

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

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

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

[0128] (4) Oil: Oil with characteristics of ozone resistance.

[0129] (5) Aromatic polyamide short fiber particles: 3 strands of aromatic polyamide short fibers (average length of 4mm, average diameter of 0.125mm, relative to 100 parts by weight of aromatic polyamide short fibers, represented by the chemical formula 1 1.6 parts by weight of the dihydrate of th...

experiment example

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

[0131] The physical properties of the rubber test pieces manufactured in the above-mentioned Examples and Comparative Examples were measured, and the results are shown in Table 2.

[0132] -Hardness is measured by a Shore A (Shore A) hardness tester. The hardness is a value indicating operational stability, and the higher the value, the better the operational stability.

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

[0134] -Abrasion loss (g): The abrasion loss is the Lambourn abrasion tester, which is a numerical value indicating the loss of abraded rubber when rotating at room temperature, a slip rate of 25%, and a load of 1.5 kg. The larger the abrasion performance, the better.

[0135] -tanδ is measured by ARES (10Hz, 0.5% stress). The lo...

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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 belt topping and tires manufactured using the composition. Specifically, it relates to improving the rigidity of the belt topping rubber and reducing the topping gauge, A rubber composition for a tire belt layer that reduces the hysteresis effect of the rubber for belt bonding and can reduce energy loss that occurs when the tire rotates, and a tire manufactured using the composition. Background technique [0002] Generally, in a radial tire, the middle portion from the carcass to the tread is called a belt layer, and the material of the belt layer uses organic matter and steel cords. [0003] The belt layer is provided at an angle close to a circular shape on the outer part of the tire, and is formed by overlapping a plurality of strong belt cords bonded with rubber bonding. The belt layer is a very important part as a strength layer in a radial tire. [0004] The steel cords constituting the belt laye...

Claims

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Application Information

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Patent Type & Authority Patents(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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