A kind of rubber vulcanization accelerator and preparation method thereof

A technology of rubber vulcanization and accelerator, which is applied in the field of rubber vulcanization accelerator and its preparation, which can solve the problems of no major improvement in vulcanization technology and unclear understanding of the mechanism of action of the accelerator, so as to improve the acceleration efficiency and process safety , the effect of improving safety

Active Publication Date: 2021-11-05
兰溪市双牛助剂化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no self-developed accelerator in our country so far, and the mechanism of action of the accelerator is unclear, so the vulcanization technology has not been greatly improved.

Method used

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  • A kind of rubber vulcanization accelerator and preparation method thereof
  • A kind of rubber vulcanization accelerator and preparation method thereof

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Comparison scheme
Effect test

Embodiment 1

[0020] A rubber vulcanization accelerator, comprising 5 parts of stearyl alcohol, 5 parts of stearic acid, 2.5 parts of ethylene glycol amine, 4 parts of sodium urealate polymer, 10 parts of accelerator D, 7.5 parts of accelerator Agent CZ, 5 parts of anti-scorch agent, 3 parts of sulfur and 6 parts of white carbon black.

[0021] The preparation method of above-mentioned rubber vulcanization accelerator is as follows:

[0022] (1) Put 50kg of stearyl alcohol, 50kg of stearic acid, and 25kg of ethylene glycol amine into a 500-liter reaction pot, and heat to 125°C under stirring to form a uniform liquid;

[0023] (2) Put the above liquid into a mixing pot, gradually add 100kg of accelerator D and 75kg of accelerator CZ under heating, 50kg of anti-scorch agent CTP, 30kg of sulfur and 40kg of sodium urealate polymer, and the temperature is controlled at 105°C. After mixing evenly, gradually add 60kg of white carbon black, and discharge after mixing.

Embodiment 2

[0025] A rubber vulcanization accelerator, comprising 4 parts of stearyl alcohol, 4 parts of stearic acid, 2 parts of ethylene glycol amine, 5 parts of sodium urealate polymer, 8 parts of accelerator D, 6.5 parts of accelerator Agent CZ, 4 parts of anti-scorch agent, 2 parts of sulfur and 5 parts of white carbon black.

[0026] The preparation method of above-mentioned rubber vulcanization accelerator is as follows:

[0027] (1) First put 40 kg of stearyl alcohol, 40 kg of stearic acid, and 20 kg of ethylene glycol amine into a 500-liter reaction pot, and heat to 130 °C under stirring to form a uniform liquid;

[0028] (2) Put the above liquid into a mixing pot, gradually add 80kg of accelerator D and 65kg of accelerator CZ, 40kg of anti-scorch agent CTP, 20kg of sulfur and 50kg of sodium ureaformate polymer under heating, and the temperature is controlled at 100°C. After mixing evenly, gradually add 50kg of white carbon black, and discharge after mixing.

Embodiment 3

[0030] A rubber vulcanization accelerator, comprising 6 parts of stearyl alcohol, 6 parts of stearic acid, 3 parts of ethylene glycol amine, 6 parts of sodium urealate polymer, 12 parts of accelerator D, 8.5 parts of accelerator Agent CZ, 6 parts of anti-scorch agent, 4 parts of sulfur and 7 parts of white carbon black.

[0031] The preparation method of above-mentioned rubber vulcanization accelerator is as follows:

[0032] (1) First put 60 kg of stearyl alcohol, 60 kg of stearic acid, and 30 kg of ethylene glycol amine into a 500-liter reaction pot, and heat to 120 ° C under stirring to form a uniform liquid;

[0033] (2) Put the above liquid into a mixing pot, gradually add 120kg of accelerator D and 85kg of accelerator CZ, 60kg of anti-scorching agent CTP, 40kg of sulfur and 60kg of sodium ureaformate polymer under heating. After mixing evenly, gradually add 70kg of white carbon black, and discharge after mixing.

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Abstract

The invention belongs to the technical field of rubber vulcanization, and discloses a rubber vulcanization accelerator and a preparation method thereof. The rubber vulcanization accelerator of the present invention comprises 4-6 parts of stearyl alcohol, 4-6 parts of stearic acid, 4-6 parts of sodium urealate polymer, 2-3 parts of ethylene glycol amine, 8 parts by weight. ‑12 parts of accelerator D, 6.5‑8.5 parts of accelerator CZ, 4‑6 parts of anti-scorch agent, 2‑4 parts of sulfur and 5‑7 parts of white carbon black. The rubber vulcanization accelerator can be more evenly distributed in the rubber compound and improve the acceleration efficiency. It can reduce the use of the aftereffect accelerator and the remaining amount of the accelerator. The use of the accelerator and the addition of functional groups of nano-polar particles has a low-temperature stable combination. And the characteristics of high temperature release, effectively reducing the scorch time and improving the promotion efficiency.

Description

technical field [0001] The invention relates to the technical field of rubber vulcanization, in particular to a rubber vulcanization accelerator and a preparation method thereof. Background technique [0002] With the expansion of rubber application fields and the increasing quality of rubber products, the vulcanization technology of rubber has also been continuously developed. The vulcanization reaction is a complex chemical reaction process in which multiple components participate. It not only includes a series of chemical reactions between rubber molecules, vulcanizing agents and other compounding ingredients, but also a variety of chemical reactions when forming a network crosslinking structure. side effects. The cross-linking forms of vulcanization mainly include three types: carbon atom direct cross-linking type, sulfur cross-linking type and non-sulfur vulcanizing agent cross-linking type. The main vulcanizing agents are sulfur, sulfur donors, metal oxides, peroxides...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08K5/05C08K5/09C08K5/17C08K5/31C08K5/47C08K3/06C08K7/26C08K5/43C08L61/32
Inventor 盛柏松董方清谭德征盛桢妮
Owner 兰溪市双牛助剂化工有限公司
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