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Rubber composition for tyre belt layer and tyre prepared from the composition

A rubber composition and belt layer technology, which is applied to special tires, tire parts, rolling resistance optimization, etc., can solve problems such as driving difficulties and large changes in tire physical properties

Inactive Publication Date: 2013-06-26
HANKOOK TIRE WORLDWIDE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the filling amount of carbon black is reduced or the content of reinforcing resin is increased as described above, the change range of the tire physical properties becomes large, and especially when driving at high speed or with a heavy load, overheating due to high speed will cause difficulty in driving.

Method used

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  • Rubber composition for tyre belt layer and tyre prepared from the composition
  • Rubber composition for tyre belt layer and tyre prepared from the composition
  • Rubber composition for tyre belt layer and tyre prepared from the composition

Examples

Experimental program
Comparison scheme
Effect test

manufacture example

[0111] [Manufacturing example: Manufacture of rubber composition]

[0112] Rubber compositions for tire belts according to 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.

[0113] 【Table 1】

[0114]

[0115] (1) Natural rubber: RSS#3. Contains 25.5 parts by weight of TDAE oil based on 100 parts by weight of rubber.

[0116] (2) Carbon black: nitrogen adsorption specific surface area is 160m 2 / g, DBP (n-dibutyl phthalate) oil absorption is 210cc / 100g.

[0117] (3) Surface-treated aramid short fibers: a compound represented by the above chemical formula 1 (Me is Na , m is 1, n is 6) dihydrate 7.0 parts by weight and the compound represented by the above chemical formula 6 (R 1 and R 2 is hydrogen, m is 2) 6.5 parts by weight for surface treatment.

experiment example

[0118] [Experimental example: Measurement of physical properties of manufactured rubber composition]

[0119] Table 2 shows the physical properties of the rubber test pieces produced in the above Examples and Comparative Examples.

[0120]-100% modulus and elongation were measured according to the ISO37 standard.

[0121] -tanδ was measured by RDS (Rheo Dynamic Spectroscopy).

[0122] 【Table 2】

[0123]

[0124] Referring to the above Table 2, compared with the comparative example, the initial modulus of the example including the surface-treated aramid staple fiber was improved, and the heat generation was suppressed.

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Abstract

The invention relates to rubber composition for a tyre belt layer and tyres prepared from the composition. The composition includes the components as following: 100 weight parts of natural rubber; and 0.1 to 10 weight parts of aromatic polyamide short fibers processed by the compound shown in the chemical formula 1 or hydrate and polysulfide of the compound. In the chemical formula 1, Me indicats an alkali metal, n is an integer from 1 to 10, and m is an integer from 1 to 6. According to the rubber composition for a tyre belt layer, indurence is guaranteed, simultaneously, over-heating of the belt layer in driving is inhibited, the service of tyres is increased, the rolling resistance is increased, and thereby stable high-speed and long-term driving is guaranteed.

Description

technical field [0001] The present invention relates to a rubber composition for a tire belt and a tire manufactured using the composition. Specifically, it relates to suppressing overheating of the belt during running while maintaining durability, thereby increasing the life of the tire and improving rolling resistance, thereby enabling A rubber composition for a tire belt capable of more stable high-speed and long-term running, and a tire manufactured using the composition. Background technique [0002] There is a problem that the belt layer of the tire is overheated due to the up, down, left, and right movements during driving compared with the initial stage. Especially for racing tires running at high speed, and truck or bus tires loaded with heavy loads, the belt may be detached due to overheating of the belt layer during driving. [0003] In conventional tires, in order to suppress the above-mentioned overheating of the belt layer, the solution used is to reduce the f...

Claims

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Application Information

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IPC IPC(8): C08L7/00C08L77/00C08L77/10C08J5/06B60C1/00
CPCY02T10/86B60C1/00B60C2001/0066C08J5/046C08J5/06C08K3/04C08K5/42C08K5/46C08K7/02C08K9/04C08L7/00
Inventor 金秉立
Owner HANKOOK TIRE WORLDWIDE
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