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Tetramethylthiuram disulfide pre-dispersed mother colloidal particle and preparation method thereof

A technology of tetramethylthiuram disulfide and tetramethylthiuram disulfide powder, which is applied in the field of tetramethylthiuram disulfide pre-dispersed masterbatch and preparation, and can solve the problem of easy agglomeration and flying , Difficult to disperse and other issues, to achieve the effect of ensuring activity, weakening static electricity, and reducing surface tension

Inactive Publication Date: 2015-10-21
SHANDONG YANGGU HUATAI CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the problems in the prior art that powder tetramethylthiuram disulfide is easy to fly, easy to agglomerate and difficult to disperse during mixing, the present invention provides a pre-dispersed masterbatch of tetramethylthiuram disulfide and its preparation The method uses tetramethylthiuram disulfide pre-dispersed masterbatch instead of powdered tetramethylthiuram disulfide as an accelerator or vulcanizing agent in rubber, which can not only improve the dispersibility, but also improve the storage stability. Improve operational safety and improve product quality

Method used

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  • Tetramethylthiuram disulfide pre-dispersed mother colloidal particle and preparation method thereof
  • Tetramethylthiuram disulfide pre-dispersed mother colloidal particle and preparation method thereof

Examples

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Embodiment 1

[0034] A kind of tetramethyl thiuram disulfide pre-dispersed masterbatch particles, comprising the following raw materials in parts by weight: 70 parts of tetramethyl thiuram disulfide powder, 10 parts of binary ethylene propylene rubber, 10 parts of ternary ethylene propylene rubber 5 parts, 5 parts of dispersant HST, 5 parts of paraffin oil.

[0035] The preparation method is as follows:

[0036] (1) Put the EPDM rubber and EPDM rubber into the internal mixer and mix for 30 seconds, then put in tetramethylthiuram disulfide powder, dispersant, paraffin oil and mix for 100 seconds, then lift the compact Turn over the top bolt on the mill once, then continue to mix with the ram, the total mixing time reaches 300 seconds, and the glue is discharged; the temperature of glue removal is 80°C; then, it is thinly passed on the mill for 3 times to obtain the masterbatch;

[0037] (2) Put the mixed masterbatch into an extruder equipped with an 80-mesh stainless steel filter screen for...

Embodiment 2

[0039] A kind of tetramethylthiuram disulfide pre-dispersed masterbatch particles, comprising the following raw materials by weight: 74 parts of tetramethylthiuram disulfide powder, 8 parts of binary ethylene propylene rubber, 8 parts of ternary ethylene propylene rubber 5 parts, 5 parts of dispersant HST, 5 parts of paraffin oil.

[0040] The preparation method is the same as in Example 1.

Embodiment 3

[0042] A kind of tetramethylthiuram disulfide pre-dispersed masterbatch particles, comprising the following raw materials by weight: 76 parts of tetramethylthiuram disulfide powder, 8 parts of binary ethylene propylene rubber, 8 parts of ternary ethylene propylene rubber 4 parts, 4 parts of dispersant HST, 4 parts of paraffin oil.

[0043] The preparation method is the same as in Example 1.

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Abstract

The invention relates to a tetramethylthiuram disulfide pre-dispersed mother colloidal particle and a preparation method thereof. The pre-dispersed mother colloidal particle comprises, by weight, 70-85 parts of tetramethylthiuram disulfide powder, 7-20 parts of ethylene propylene rubber, 1-10 parts of a dispersant and 1-10 parts of processing oil. The invention also provides the preparation method of the tetramethylthiuram disulfide pre-dispersed mother colloidal particle. A wax protection film is formed on the surface of the particle due to special formula design, and can effectively prolong the storage life of the tetramethylthiuram disulfide pre-dispersed mother colloidal particle.

Description

technical field [0001] The invention relates to a tetramethylthiuram disulfide pre-dispersed masterbatch and a preparation method thereof, in particular to a tetramethylthiuram disulfide high-dispersion masterbatch with rubber as a carrier to replace the traditional tetramethylthiuram disulfide Kithuram powder and its preparation method. Background technique [0002] Tetramethylthiuram disulfide, referred to as TMTD or TT, is used as an accelerator for rubber natural rubber and synthetic rubber. It is mainly used in the manufacture of tires, inner tubes, cables, sealing strips, etc., because it can be slowly decomposed and released at temperatures above 100 ° C. Sulfur, so it can also be used as a vulcanizing agent. Ordinary tetramethyl thiuram disulfide is easy to fly and agglomerate due to the static electricity on the powder surface is difficult to eliminate during mixing, resulting in the loss and local concentration of tetramethyl thiuram disulfide, which leads to insu...

Claims

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Application Information

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IPC IPC(8): C08L23/16C08L91/06C08K5/40C08K5/103C08K5/09C08J3/22
CPCC08L23/16C08J3/226C08J2423/16C08L2205/03C08L91/06C08K5/40C08K5/09C08K5/103
Inventor 杨振林陈宝喜李卉
Owner SHANDONG YANGGU HUATAI CHEM
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