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Rubber composition improving anti-reversion performance and application thereof

A rubber composition and anti-vulcanization reversion technology, applied in the field of rubber, can solve the problems of unfavorable health and safety, a large amount of dust, etc., achieve low dynamic heat generation, good mechanical properties, and improve the effect of anti-vulcanization reversion performance

Active Publication Date: 2016-02-24
BEIJING RED AVENUE INNOVA
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Hexamethylene-1,6 dithiosulfate disodium salt dihydrate (HTS) must be ground very finely to disperse evenly, but grinding into powder will inevitably bring a lot of dust, which is not conducive to health and safety

Method used

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  • Rubber composition improving anti-reversion performance and application thereof
  • Rubber composition improving anti-reversion performance and application thereof
  • Rubber composition improving anti-reversion performance and application thereof

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Embodiment Construction

[0016] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below in conjunction with specific examples. It should be pointed out that all similar substitutions and modifications are obvious to those skilled in the art, and they are all deemed to be included in the present invention.

[0017] The anti-reversion agent composition and composition in Examples 1 to 4 are as follows:

[0018] Table 1. Anti-reversion agent components in Examples 1-4

[0019]

[0020] Components and sources in the embodiment rubber composition are as follows:

[0021] Natural rubber, SMR20, product from Malaysia;

[0022] Carbon black N326, Cabot (China) Investment Co., Ltd.;

[0023] Zinc Oxide, Dalian Zinc Oxide Factory;

[0024] Stearic acid, Tyko Browning;

[0025] Antiaging agent 4020, Jiangsu Sunon Chemical Co., Ltd.;

[0026] Antiaging agent RD, Jiangsu Sunon Chemica...

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Abstract

A rubber composition which is economical and has a strong anti-reversion performance includes 100 parts by weight of natural rubber, 40.0-60.0 parts by weight of carbon black, 1.0-6.0 the parts by weight of zinc oxide, 1.0-4.0 parts by weight of stearic acid, 1.5-5.0 parts by weight of an anti-aging agent, 1.0-5.0 parts by weight of an anti-reversion agent, 2.0-6.0 parts by weight of sulfur, and 0.5-2.0 parts by weight of an accelerant; the anti-reversion agent comprises the components of polyfunctional acrylate, white carbon black, and a fatty acid derivative. The rubber composition improves the anti-reversion performance of rubber, guarantees that a rubber material has stable mechanical performance under an over-cure condition, and besides, improves the dynamic performance of the rubber material.

Description

technical field [0001] The invention relates to the technical field of rubber, in particular to a rubber composition for improving anti-vulcanization reversion performance and its application. Background technique [0002] Vulcanization reversion refers to the phenomenon that the thermal degradation of the vulcanized cross-linking bonds leads to the decrease of the physical properties of the vulcanized rubber and the deterioration of the service performance. The vulcanization system commonly used in natural rubber is mainly sulfur / accelerator vulcanization system. When using sulfur / accelerator system (especially common vulcanization system and semi-effective system) to vulcanize natural rubber, the obtained vulcanized rubber contains longer and soft polysulfide Linked, so it has excellent physical properties, especially good dynamic properties. However, the bond energy of the sulfur-sulfur bond is low. During long-term oversulfurization or high-temperature vulcanization, th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L7/00C08K13/02C08K3/04C08K5/103C08K3/36C08K5/098
CPCC08K3/04C08K3/36C08K5/098C08K5/103C08K13/02C08K2201/006C08L7/00
Inventor 陈强甄博鸣赵丽丽卢佳董栋
Owner BEIJING RED AVENUE INNOVA
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