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Highly dispersed high-stability insoluble sulfur and preparation method thereof

A highly stable and highly dispersed technology, applied in the field of rubber product processing, can solve the problems affecting the application performance of rubber processing, insoluble sulfur dispersion and adverse effects on stability, etc.

Inactive Publication Date: 2015-06-24
WUXI HUASHENG RUBBER TECHN +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since a variety of polymer materials are added to the insoluble sulfur, there is no doubt that it will have a certain degree of adverse effects on the dispersion and stability of the insoluble sulfur, and may affect the application performance in rubber processing

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] This preparation method comprises the following steps:

[0050] (1), based on 100 parts by weight of insoluble sulfur, weigh the following components:

[0051] Coconut oil fatty acid diethylene glycol acyl: 0.8 parts, ethyl salicylate: 0.07 parts, polyethylene glycol with a molecular weight of 800: 0.5 parts, add appropriate amount of water to the above raw materials, and mix well;

[0052] (2) Weigh 1.0 parts of AEROSIL300 and fully stir and mix with 100 parts of insoluble sulfur at a speed of 800~1000 rpm;

[0053] (3) Add the mixture prepared in step (1) to the material finished in step (2), and continue to fully stir and mix at a speed of 800~1000 rpm;

[0054] (4) The material obtained in step (3) is vacuum-dried, and then further oil-washed to obtain a highly dispersed and highly stable insoluble sulfur product.

Embodiment 2

[0056] This preparation method comprises the following steps:

[0057](1), based on 100 parts by weight of insoluble sulfur, weigh the following components:

[0058] Coconut oil fatty acid diethylene glycol acyl: 0.5 parts, ethyl salicylate: 0.1 parts, polyethylene glycol with a molecular weight of 800: 0.6 parts, add appropriate amount of water to the above raw materials, and mix well;

[0059] (2) Weigh 0.5 parts of AEROSIL300 and fully stir and mix with 100 parts of insoluble sulfur at a speed of 800~1000 rpm;

[0060] (3) Add the mixture prepared in step (1) to the material finished in step (2), and continue to fully stir and mix at a speed of 800~1000 rpm;

[0061] (4) The material obtained in step (3) is vacuum-dried, and then further oil-washed to obtain a highly dispersed and highly stable insoluble sulfur product.

Embodiment 3

[0063] This preparation method comprises the following steps:

[0064] (1), based on 100 parts by weight of insoluble sulfur, weigh the following components:

[0065] Coconut oil fatty acid diethylene glycol acyl: 0.7 parts, ethyl salicylate: 0.05 parts, polyethylene glycol with a molecular weight of 1000: 0.3 parts, add appropriate amount of water to the above raw materials, and mix well;

[0066] (2) Weigh 1.5 parts of AEROSIL300 and fully stir and mix with 100 parts of insoluble sulfur at a speed of 800~1000 rpm;

[0067] (3) Add the mixture prepared in step (1) to the material finished in step (2), and continue to fully stir and mix at a speed of 800~1000 rpm;

[0068] (4) The material obtained in step (3) is vacuum-dried, and then further oil-washed to obtain a highly dispersed and highly stable insoluble sulfur product.

[0069] Embodiment three:

[0070] This preparation method comprises the following steps:

[0071] (1), based on 100 parts by weight of insoluble su...

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PUM

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Abstract

The invention relates to highly dispersed high-stability insoluble sulfur and a preparation method thereof. The highly dispersed high-stability insoluble sulfur is prepared from the following components in parts by weight: 100 parts of insoluble sulfur powder, 0.5-2.0 parts of shielding blocking agent, 0.5-1.0 part of antistatic agent, 0.05-0.2 part of light stabilizer and 0.2-0.6 part of dispersant; the shielding blocking agent is fumed silica; the antistatic agent is a fatty acid alkanolamide type surfactant; the light stabilizer is a salicylate; and the dispersant is polyethylene glycol. According to the method, the insoluble sulfur is mixed with the shielding blocking agent, the antistatic agent, the light stabilizer and the dispersant are mixed together, and the two mixtures are mixed and stirred, dried in vacuum and then filled with oil. According to the highly dispersed high-stability insoluble sulfur and the preparation method thereof, the dispersibility and the stability of the insoluble sulfur are improved and are relatively high.

Description

technical field [0001] The invention relates to a highly dispersed and highly stable insoluble sulfur and a preparation method thereof, belonging to the technical field of rubber product processing. Background technique [0002] Insoluble sulfur (abbreviated as IS) refers to polymerized sulfur insoluble in carbon disulfide, which is a thermoplastic linear polymer homopolymer. Insoluble sulfur has obvious chemical inertness and physical inertness. It is not easy to migrate when used in rubber vulcanization, so It can increase the viscosity of vulcanized rubber, prevent blooming, reduce scorching and prolong the shelf life of glue. At present, the latest technology for the production of insoluble sulfur in the world is the continuous one-step gasification process. With this process, the "three high" indicators of insoluble sulfur have been basically realized, namely high content, high dispersion and high thermal stability. However, due to the high content of insoluble sulfur,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B17/12
CPCC01B17/12
Inventor 陈明清刘士荣储鸿陈杰倪忠斌顾蓉英
Owner WUXI HUASHENG RUBBER TECHN
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