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Method for preparing low-zinc vulcanized active agents by active carrier method

A vulcanization activator and modification technology, which is applied in the treatment of low-molecular organic compounds in dyeing, chemical instruments and methods, and the treatment of high-molecular organic compounds in dyeing. It can solve the problems of limited zinc ions, decreased application performance, and poor performance. The effect of outstanding price advantage, cost reduction and low price

Active Publication Date: 2012-03-21
BEIJING RES & DESIGN INST OF RUBBER IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The fourth category is to use other metal oxides or other completely zinc-free compounds to replace zinc oxide, and the performance of the product is poor
Montmorillonite has not been modified by organic activity, and the zinc ions on the adsorption are limited, so the application performance in the rubber compound is greatly reduced

Method used

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  • Method for preparing low-zinc vulcanized active agents by active carrier method
  • Method for preparing low-zinc vulcanized active agents by active carrier method
  • Method for preparing low-zinc vulcanized active agents by active carrier method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Add sodium dodecylsulfonate with a mass concentration of 5% to the aqueous solution of montmorillonite at 20°C, stir for 2 hours, filter the fully modified montmorillonite with suction, wash with water until there is no sodium ion, and put it in 60°C Dry in oven for 12h.

[0045] Dissolve the modified montmorillonite in 1.5 mol / l zinc chloride salt solution, stir and react for 4 hours, then add 0.01 mol / l oxalic acid dropwise for 30 minutes. After fully stirring for 2 hours, the completely reacted montmorillonite was suction-filtered, washed until there was no chloride ion, and dried in an oven at 60°C for 24 hours.

[0046] The dried montmorillonite was fired at 450°C for 2h.

[0047] Evaluation test: The sample is subjected to the basic performance test in styrene-butadiene rubber 1712, using GB / T8656-1998, and the carbon black is N330.

[0048] The results of vulcanization instrument and strength test show that the low-zinc vulcanization activator sample and ordinary...

Embodiment 2

[0064] Add sodium dodecylbenzene sulfonate with a mass concentration of 5% to the kaolin aqueous solution at 40°C, and stir for 2 hours. Suction filter the fully modified kaolin, wash with water until there is no sodium ion, and put it in an oven at 80°C. Dry in medium for 12h.

[0065] The modified kaolin was dissolved in a 1.5 mol / l zinc sulfate solution, stirred and reacted for 4 hours, and then 0.1 mol / l hexamethylenetetramine was added dropwise for 30 minutes. After fully stirring for 2 hours, the fully reacted kaolin was suction-filtered, washed until no sulfate ions were present, and dried in an oven at 80°C for 24 hours.

[0066] The dried kaolin was burned at 250°C for 2h.

[0067] Evaluation test: The basic performance test of the sample is carried out in styrene-butadiene rubber 1502, using GB / T8656-1998, and the carbon black is N330.

[0068] The results of the vulcanization tester and the strength test show that the low-zinc vulcanization activator sample and or...

Embodiment 3

[0083] Add hexadecyltrimethylammonium bromide with a mass concentration of 2% to the vermiculite aqueous solution at 60°C, stir for 2 hours, filter the fully modified vermiculite with suction, wash with water until no ammonium ions are present, and put Dry in an oven at 80°C for 12 hours.

[0084] Dissolve the modified vermiculite in 1.0 mol / l zinc acetate solution, stir and react for 4 hours, then add 0.01 mol / l ammonia water dropwise for 30 minutes. After fully stirring for 4 hours, suction filter the completely reacted vermiculite, wash until there is no zinc ion, and put it into an oven at 80°C for 24 hours to dry.

[0085] Burn the dried vermiculite at 350°C for 2h.

[0086] Evaluation test: The basic performance test of the sample is carried out in the formula of butadiene rubber 9000, using GB / T8660-2008, and the carbon black is N330.

[0087] The results of the vulcanization tester and the strength test show that the low-zinc vulcanization activator sample and ordina...

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Abstract

The invention relates to a method for preparing low-zinc vulcanized active agents by an active carrier method. Novel nanometer-grade dispersed clay is adopted to be used as a carrier, a small number of zinc ions are loaded after the organic activation of the carrier is modified so that the loaded zinc ions are enriched on the surface of the carrier, and after the full adsorption reaction, precipitating agents are dripped so that the zinc ions absorbed on the carrier are completely precipitated on the surface of the active carrier clay. The concentration of the zinc ions practically participating in the reaction is improved, and simultaneously, the dispersibility of the zinc ions is also improved. Because the concentration of the loaded zinc ions is low and only equals to that of the zinc ions practically participating in the reaction, the ZnO consumption in sizing materials can be obviously reduced. The method has the advantages that the process is simple, the zinc content of the prepared low-zinc vulcanized active agents is low, and the application performance is identical to that of zinc oxide.

Description

technical field [0001] The invention relates to a vulcanization activator in a rubber vulcanization process, in particular to an active carrier method for preparing a low-zinc vulcanization activator. Background technique [0002] In recent years, more and more attention has been paid to the environmental pollution of additives in rubber products. As the most commonly used additive in the production of rubber products, zinc oxide has always been used in a high amount. On the one hand, precious zinc resources are wasted, and on the other hand On the one hand, excessive zinc is released into the environment through the application of late rubber products, causing great harm to zinc-sensitive aquatic organisms and causing environmental pollution. The analysis data of foreign brand-name tires recently analyzed shows that the amount of zinc oxide is far lower than the general amount of domestic tires. However, domestic tire manufacturers still follow the traditional standards, a...

Claims

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Application Information

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IPC IPC(8): C09C1/42C09C3/08C09C3/10C09C3/04C09C3/06C08K9/12C08K9/04C08K3/34C08L21/00
Inventor 李花婷贾昧马金峰胡浩
Owner BEIJING RES & DESIGN INST OF RUBBER IND
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