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Steel wire bonding rubber composition with damp-heat aging resistance and steam aging resistance and application thereof

A rubber composition, a technology of resistance to heat and humidity, applied in the direction of adhesive types, natural rubber adhesives, aldehyde/ketone condensation polymer adhesives, etc., can solve problems such as accelerated rubber hydrocarbon aging, achieve good retention rate, The effect of good durability, improved service life and refurbishment

Inactive Publication Date: 2020-05-29
SHANDONG LINGLONG TIRE
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Cobalt salts will reduce the transition from amorphous state to crystalline state of the adhesive layer after heat and humidity aging, but the disadvantage is that the presence of cobalt salts in the compound will accelerate the aging of rubber hydrocarbons
Therefore, although cobalt salt is an indispensable key material for bonding between rubber and steel wire skeleton materials, the presence of cobalt salt in rubber will accelerate the aging of rubber hydrocarbons, which is contradictory.

Method used

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  • Steel wire bonding rubber composition with damp-heat aging resistance and steam aging resistance and application thereof
  • Steel wire bonding rubber composition with damp-heat aging resistance and steam aging resistance and application thereof
  • Steel wire bonding rubber composition with damp-heat aging resistance and steam aging resistance and application thereof

Examples

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Effect test

example 1

[0021] Rubber compositions of the composition specified in Table 1 were prepared in a BR Banbury internal mixer using four separate addition mixing stages, namely three non-productive mixing stages and one productive mixing stage. The three non-productive stages were mixed for about 1-3 minutes until the rubber temperature reached 160°C, which was completed; the productive stage was mixed for about 1-2.5 minutes until the rubber temperature reached 100°C.

[0022] The rubber compositions are referred to herein as Comparative Example 1, Comparative Example 2, and Example 1.

[0023] Table 2 shows the steel wire pulling performance of the vulcanized samples of Comparative Example 1, Comparative Example 2, and Example 1, and Table 3 shows the peeling force of the vulcanized samples of Comparative Example 1, Comparative Example 2, and Example 1.

[0024] Table 1 rubber composition raw material table

[0025]

[0026]

[0027] Table 2 Comparative Example 1, Comparative Examp...

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Abstract

The invention relates to the technical field of tires, in particular to a steel wire bonding rubber composition with damp-heat aging resistance and steam aging resistance. The steel wire bonding rubber composition comprises the following components in parts by weight: 1-100 parts of natural rubber, 20-100 parts of a reinforcing filler, 1-5 parts of an adhesive resin and 3-7 parts of an adhesive. The preparation method has the beneficial effects that the problem of poor aging resistance of the rubber material caused by cobalt salt is solved, and the toxic effect of the cobalt salt on the environment and human bodies in the use process is reduced. Cobalt salt is not added into the formula, contact between a human body and the cobalt salt is avoided in the production process, and the greenertire production process is guaranteed; meanwhile, the catalytic aging effect of cobalt salt on rubber hydrocarbon is avoided, so that the durability of the adhesive rubber is better, the retention rate of the adhesive force under the damp and hot aging condition is better, the adhesive degradation is slower after steam aging, and the steel wire bonding rubber composition has great significance inprolonging the service life of tires and improving the retreading performance of the tires, and has great value for end users of truck and passenger car tires.

Description

technical field [0001] The invention relates to the technical field of tires, in particular to a steel wire bonded rubber composition resistant to damp heat aging and steam aging and its application. Background technique [0002] Car tires generally have no problems in the initial use process, but when they run on high-frequency, high-load, and complex road conditions for a long time, the separation between the skeleton material and the rubber often occurs in the tire, that is, the durability of the tire is poor. Analyze the reason It is mainly caused by the damage of the rubber bonding layer caused by the aging effect of the tire during long-term use. [0003] Based on the above reasons, in order to improve the durability of tires, improve the service life of tires, especially for improving the retreading performance of tires, how to improve the aging resistance of the bond between rubber and skeleton materials is a key technical problem that needs to be solved urgently. ...

Claims

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Application Information

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IPC IPC(8): C09J107/00C09J161/12C09J161/10C08L7/00C08L61/12C08L61/10B60C1/00
CPCB60C1/0041C08L7/00C08L2201/08C09J107/00C08L61/06C08K13/04C08K7/26C08K3/22C08K5/09C08K3/04C08L61/12
Inventor 王锋李洪兰庄儒彬陈雪梅韩绍楠仇培超王慧李先业邢涛张正伟
Owner SHANDONG LINGLONG TIRE
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