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Anti-reversion shoulder pad rubber composition

A rubber composition and anti-reversion technology, applied in the rubber field, can solve problems such as not very obvious effects, and achieve the effects of reducing the heat generation of the tire shoulder, improving the service life, and improving the anti-reversion ability.

Active Publication Date: 2014-03-12
TRIANGLE TIRE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, some manufacturers solve the problem of vulcanization reversion by adding anti-reversion agent alone, which has a certain effect, but the effect is not very obvious

Method used

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  • Anti-reversion shoulder pad rubber composition

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Embodiment Construction

[0009] Below in conjunction with embodiment the present invention will be further described:

[0010] The invention is characterized by adopting the following raw materials in parts by weight: 100 parts by weight of natural rubber, 25-40 parts by weight of carbon black, 5-10 parts by weight of white carbon black, 3-5 parts by organic silicon mixture TESPT, 3-6 parts by weight of zinc oxide, 1.5 parts by stearic acid ~2.5, Super Tackifying Resin 1~2, Antiaging Agent 4020 1~2.5, Antiaging Agent RD 0.5~1.5, Insoluble Sulfur 1~2.5, Accelerator NS 0.5~2, Antiscorch Agent CTP 0.2, Hexamethylene-1 , 6-dithiosulfate disodium salt. Two parts of crystal water (HTS) 0.5 to 2.5.

[0011] Preferably, the carbon black is preferably N375 and N660, where N375 is 10-15 parts by weight, and N660 is 15-25 parts by weight.

[0012] Preferably, the disodium salt of hexamethylene-1,6-bisthiosulfate. Two parts of crystal water (HTS) is 1-2 parts.

[0013] In the present invention, a balanced vulca...

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Abstract

The invention relates to the technical field of rubber, particularly an anti-reversion shoulder pad rubber composition which is characterized by comprising the following components in parts by weight: 100 parts of natural rubber, 25-40 parts of carbon black, 5-10 parts of silica white, 3-5 parts of organosilicon mixture TESPT, 3-6 parts of zinc oxide, 1.5-2.5 parts of stearic acid, 1-2 parts of tackifying resin, 1-2.5 parts of anti-aging agent 4020, 0.5-1.5 parts of anti-aging agent RD, 1-2.5 parts of insoluble sulfur, 0.2-5-2 parts of accelerator NS, 0.2 part of vulcanization retardant CTP, 0.5-2.5 parts of hexamethylene-1,6-dithiosulfate disodium and 2 parts of crystal water. The invention enhances the anti-reversion capacity of the tire shoulder pad, ensures the stability of stress at definite elongation, hardness and other mechanical properties of rubber under the condition of overvulcanization, lowers the tire shoulder generated heat, and prolongs the service life of the tire.

Description

technical field [0001] The invention relates to the technical field of rubber, in particular to a shoulder pad rubber composition resistant to vulcanization reversion. Background technique [0002] As we all know, vulcanization reversion will have many adverse effects on vulcanized rubber, such as the decrease of physical properties, the decrease of crosslink density, the deterioration of dynamic properties and the increase of heat generation. The vulcanization reversion of tire rubber mainly occurs during tire vulcanization and actual use. At present, the raw rubber in the formula of most rubber parts of all-steel radial truck tires is still mainly NR, and the vulcanization system is mostly ordinary sulfur vulcanization system. In order to ensure positive vulcanization inside the tire during the vulcanization process, different degrees of vulcanization regression will often occur on the outside of the tire. During the actual use of the tire, due to factors such as high s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L7/00C08K13/02C08K3/04C08K3/36C08K3/22C08K5/09C08K3/06C08K5/36B60C1/00
Inventor 丁玉华单国玲董凌波韩菁马海民林科董秀玲
Owner TRIANGLE TIRE
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