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Preparation method of IS90 insoluble sulfur and antistatic agent for preparing IS90 insoluble sulfur

An antistatic agent and sulfur technology, applied in the field of antistatic agents, can solve the problems of poor dispersibility of insoluble sulfur, and achieve the effects of ensuring thermal stability, ensuring mixing uniformity, and preventing the impact of product performance.

Active Publication Date: 2018-09-21
SHANGHAI JINGHAI ANHUI CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the relatively poor dispersibility of the insoluble sulfur produced by the existing domestic technology, and provide a preparation method of IS90 insoluble sulfur and an antistatic agent for its preparation

Method used

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  • Preparation method of IS90 insoluble sulfur and antistatic agent for preparing IS90 insoluble sulfur
  • Preparation method of IS90 insoluble sulfur and antistatic agent for preparing IS90 insoluble sulfur

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Comparison scheme
Effect test

Embodiment 1

[0028] A kind of preparation method of IS90 insoluble sulfur of the present embodiment, use liquid sulfur as raw material, adopt gasification-quick cooling method to produce and obtain IS60 semi-finished product, carry out extraction, drying and sieving successively on IS60 semi-finished product to obtain IS90 semi-finished product, then obtain The IS90 semi-finished product is uniformly mixed with rubber oil and antistatic agent to obtain IS90 insoluble sulfur finished product. The antistatic agent is composed of fatty alcohol polyoxyethylene ether and polybutylene, and the mass percentage of fatty alcohol polyoxyethylene ether and polybutylene is 10% and 90% respectively, and the addition amount of the antistatic agent is 3% of the mass of the obtained IS90 insoluble sulfur finished product.

[0029] The dispersibility of insoluble sulfur products is crucial to its application effect. Sulfur with poor dispersibility will generate static electricity, which will cause all the s...

Embodiment 2

[0031] The preparation method of a kind of IS90 insoluble sulfur of this embodiment, its step is basically the same as embodiment 1, and its difference mainly lies in: the extraction solution of this embodiment adopts CS 2 , put the extracted product in a drying pot, heat it with hot water to increase the temperature of the product from 15°C to 60°C, and then use a 100-150 mesh screen for sieving treatment to obtain an IS90 semi-finished product. The obtained IS90 semi-finished product is mixed evenly with rubber oil and antistatic agent to obtain IS90 insoluble sulfur finished product. The mass percentages of fatty alcohol polyoxyethylene ether and polybutylene in the antistatic agent of the present embodiment are respectively 12%, 88%, And the addition amount of antistatic agent is 3.4% of the mass of the obtained IS90 insoluble sulfur finished product.

Embodiment 3

[0033]A kind of preparation method of IS90 insoluble sulfur of the present embodiment, its preparation process is basically the same as embodiment 2, and its difference mainly is: the mass percent of fatty alcohol polyoxyethylene ether and polybutylene in the antistatic agent of present embodiment is respectively 11%, 89%, and the amount of antistatic agent added is 4.5% of the mass of the obtained IS90 insoluble sulfur product. At the same time, when mixing the IS90 semi-finished product with rubber oil, a certain amount of iodine is added, and the amount of iodine added is the obtained IS90 insoluble sulfur 1‰ of finished product quality. In this embodiment, a certain amount of iodine is added during the oil-filling treatment, and the amount of iodine added is optimized, so as to effectively ensure the thermal stability of the obtained product and further prevent the impact of the addition of antistatic agents on the thermal stability of sulfur , At the same time, it can als...

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Abstract

The invention discloses a preparation method of IS90 insoluble sulfur and an antistatic agent for preparing the IS90 insoluble sulfur, and belongs to the technical field of sulfur production. The antistatic agent for preparing the IS90 insoluble sulfur is prepared from fatty alcohol-polyoxyethylene ether and polybutylethene, wherein the mass percent of the fatty alcohol-polyoxyethylene ether and the mass percent of the polybutylethene are 10 to 12 percent and 88 to 90 percent respectively. The preparation method of the IS90 insoluble sulfur comprises the following steps: taking liquid sulfur as a raw material and producing by adopting a gasification-quenching method to obtain a semi-finished product of IS60; successively extracting, drying and sieving the semi-finished product of the IS60to obtain a semi-finished product of IS90; then uniformly mixing the obtained semi-finished product of the IS90 with rubber oil and the antistatic agent to obtain a finished product of the IS90 insoluble sulfur. According to the preparation method of the IS90 insoluble sulfur and the antistatic agent, disclosed by the invention, the specific antistatic agent is added in the preparation process ofsulfur, so that dispersion performance of the obtained IS90 insoluble sulfur can be effectively improved, and further mixing uniformity of the d IS90 insoluble sulfur with rubber in subsequent application is ensured.

Description

technical field [0001] The invention belongs to the technical field of sulfur production, and more specifically relates to a preparation method of IS90 insoluble sulfur and an antistatic agent for preparation thereof. Background technique [0002] As an important vulcanizing agent in the rubber industry, insoluble sulfur has excellent vulcanization performance, can improve the bonding strength between the rubber compound and the skeleton material, effectively prevent the rubber compound from blooming, and improve the heat resistance and wear resistance of the tire. Therefore, it is widely used in tire parts and rubber products, such as tire carcass, cushioning layer, sidewall, rubber hose, tape and other rubber materials that require high bonding strength with skeleton materials, and can also be used in cables, rubber sets, rubber shoes, In the rubber compound of oil seals and other light-colored rubber products with a large amount of sulfur. [0003] With the improvement o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/20C08L71/02C08L91/00C08K3/06C01B17/12
CPCC01B17/12C08L23/20C08L2201/04C08L2205/03C08L71/02C08L91/00C08K3/06
Inventor 陈杰胡建敏
Owner SHANGHAI JINGHAI ANHUI CHEM
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