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Rubber anti-reversion agent composition

An anti-reversion agent and composition technology, which is applied in the field of material engineering, can solve problems such as not very obvious effects, achieve good quality, stable performance, and ensure the effect of constant elongation stress

Inactive Publication Date: 2014-06-25
QINGDAO SHUAIWANG OIL CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] Embodiment 1, a composition of a rubber anti-reversion agent, made of the following raw materials in parts by weight: 50 parts of natural rubber, 20 parts of carbon black, 15 parts of white carbon black, 3 parts of fatty acid zinc, disulfide 5 parts of disodium sulfate, 8 parts of zinc aromatic acid, 7 parts of citraconimide, 2 parts of accelerator NS, 4 parts of propanethiol.

[0011] Add 50 parts of natural rubber, 20 parts of carbon black, and 15 parts of white carbon black into the reaction kettle, heat and stir until melting, continue heating to 100°C, then add 3 parts of fatty acid zinc, 5 parts of disodium dithiosulfate, aromatic Add 8 parts of zinc acid into the reaction kettle, continue to heat up to 110°C, heat and stir until mixed evenly, then add 7 parts of citraconimide, 2 parts of accelerator NS, and 4 parts of propanethiol into the reaction kettle in 3 times , at an interval of 3 minutes, at 110°C, stirring and reacting for 0.6 hours, sampling and measuri...

Embodiment 2

[0012] Embodiment 2, a composition of rubber anti-reversion agent, made of the following raw materials in parts by weight: 80 parts of natural rubber, 35 parts of carbon black, 30 parts of white carbon black, 5 parts of fatty acid zinc, bisthio 6 parts of disodium sulfate, 10 parts of zinc aromatic acid, 10 parts of citraconimide, 4 parts of accelerator NS, 6 parts of propanethiol.

[0013] Add 80 parts of natural rubber, 35 parts of carbon black, and 30 parts of white carbon black into the reaction kettle, heat and stir until melting, continue heating to 100°C, then add 5 parts of fatty acid zinc, 6 parts of disodium dithiosulfate, aromatic Add 10 parts of zinc acid into the reaction kettle, continue to heat up to 110°C, heat and stir until mixed evenly, then add 10 parts of citraconimide, 4 parts of accelerator NS, and 6 parts of propanethiol into the reaction kettle in 3 times , at an interval of 3 minutes, at 110°C, stirring and reacting for 0.6 hours, sampling and measuri...

Embodiment 3

[0014] Embodiment 3, a composition of rubber anti-reversion agent, made of the following raw materials in parts by weight: 100 parts of natural rubber, 50 parts of carbon black, 45 parts of white carbon black, 7 parts of fatty acid zinc, dithiocarbamate 8 parts of disodium sulfate, 12 parts of zinc aromatic acid, 15 parts of citraconimide, 5 parts of accelerator NS, 8 parts of propanethiol.

[0015] Add 100 parts of natural rubber, 50 parts of carbon black, and 45 parts of white carbon black into the reaction kettle, heat and stir until melting, continue heating to 100°C, add 7 parts of fatty acid zinc, 8 parts of disodium dithiosulfate, aromatic Add 12 parts of zinc acid into the reaction kettle, continue to heat up to 110°C, heat and stir until mixed evenly, then add 15 parts of citraconimide, 5 parts of accelerator NS, and 8 parts of propanethiol into the reaction kettle in 3 times , at an interval of 3 minutes, at 110°C, stirring and reacting for 0.6 hours, sampling and me...

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PUM

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Abstract

The invention discloses a rubber anti-reversion agent composition. The composition is prepared by using the following raw materials, by weight, 50-100 parts of natural rubber, 20-50 parts of carbon black, 15-45 parts of white carbon black, 3-7 parts of zinc fatty acid, 5-8 parts of disodium dithiosulfate, 8-12 parts of zinc aromatic acid, 7-15 parts of citraconyl imine, 2-5 parts of an accelerant NS, and 4-8 parts of propanethiol. The rubber anti-reversion agent composition has the advantages of stable performances, good quality, improvement of the anti-reversion capability of rubber, and guarantee of the stress at definite elongation of the rubber compound under over vulcanization conditions.

Description

technical field [0001] The invention relates to the technical field of material engineering, in particular to a composition of a rubber anti-reversion agent. 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. When the natural rubber is vulcanized by the traditional vulcanization system, the amount of sulfur is large and the amount of accelerator is small. More than 70% of the vulcanized rubber forms a polysulfide cross-linking bond structure, which has the advantage of high mechanical strength. However, the thermal stability of polysulfide crosslinks is poor. During the vulcanization process, as the heating time increases, the initially formed polysulfide crosslinks will be partially broken, resulting in a decrease in the physical properties of the vulcanizate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L7/00C08K13/02C08K3/04C08K3/36C08K5/098C08K5/37
Inventor 王明夫
Owner QINGDAO SHUAIWANG OIL CHEM
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