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Insoluble sulfur capable of prolonging storage time of rubber and preparation technique thereof

A storage time and sulfur technology, applied in the preparation/purification of sulfur, can solve the problems of short storage time, poor quality and high cost of rubber

Active Publication Date: 2016-06-01
SHANGHAI JINGHAI ANHUI CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the domestic production of insoluble sulfur is unsafe, with high cost and poor quality. It is easy to migrate when used in rubber vulcanization, has poor thermal stability, and the storage time of rubber is short. Grinding, anti-aging, and insoluble sulfur that can store the rubber for a long time when used for rubber vulcanization is very important

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The insoluble sulfur used in this embodiment to extend the storage time of rubber materials is made of the following raw materials in parts by weight: 60 parts of ordinary industrial sulfur powder, 4 parts of light stabilizer, 1 part of vulcanization activator, 1 part of dispersant, and 1 part of antistatic agent , 1 part of coupling agent, 1 part of accelerator, 5 parts of montmorillonite, 5 parts of mica powder, 3 parts of antioxidant, 5 parts of zinc stearate, 6 parts of lecithin.

[0027] Wherein the production process of the insoluble sulfur prolonging the storage time of the sizing material comprises the following steps:

[0028] S1. Melting and liquefaction: Weigh parts by weight of ordinary industrial sulfur powder, heat the sulfur powder to a molten state at 110-140°C, and raise the temperature to 160°C to obtain high-temperature sulfur liquid;

[0029] S2, Quenching: Add antistatic agent, coupling agent, vulcanization activator, zinc stearate to the high-tempe...

Embodiment 2

[0035] The insoluble sulfur used in this embodiment to prolong the storage time of the sizing material is made of the following raw materials in parts by weight: 60 parts of common industrial sulfur powder, 4 parts of ethyl salicylate, 1 part of nano-zinc oxide, 1 part of dispersant, coconut oil fatty acid 1 part of diethylene glycol amide, 1 part of silane coupling agent, 1 part of accelerator CZ, 5 parts of montmorillonite, 5 parts of mica powder, 3 parts of antioxidant, 5 parts of zinc stearate, 6 parts of lecithin.

[0036] Wherein the production process of the insoluble sulfur prolonging the storage time of the sizing material comprises the following steps:

[0037] S1. Melting and liquefaction: Weigh parts by weight of ordinary industrial sulfur powder, heat the sulfur powder to a molten state at 110-140°C, and raise the temperature to 160°C to obtain high-temperature sulfur liquid;

[0038] S2. Quenching: Add coconut oil fatty acid diethylene glycol amide, silane coupli...

Embodiment 3

[0044] The insoluble sulfur used in this embodiment to prolong the storage time of the sizing material is made of the following raw materials in parts by weight: 100 parts of common industrial sulfur powder, 8 parts of ethyl salicylate, 3 parts of nano-zinc oxide, 3 parts of dispersant, coconut oil fatty acid Diethylene glycol amide 4 parts, silane coupling agent 3 parts, accelerator TMTD 3 parts, montmorillonite 12 parts, mica powder 12 parts, antioxidant 6 parts, zinc stearate 13 parts, lecithin 12 parts.

[0045] Wherein the production process of the insoluble sulfur prolonging the storage time of the sizing material comprises the following steps:

[0046] S1. Melting and liquefaction: Weigh parts by weight of ordinary industrial sulfur powder, heat the sulfur powder to a molten state at 110-140°C, and raise the temperature to 160°C to obtain high-temperature sulfur liquid;

[0047]S2. Quenching: Add coconut oil fatty acid diethylene glycol amide, silane coupling agent, nan...

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PUM

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Abstract

The invention provides an insoluble sulfur capable of prolonging storage time of rubber and a preparation technique thereof, relating to the technical field of rubber product processing aids. The insoluble sulfur is prepared from common industrial sulfur powder, a light stabilizer, a vulcanization activator, a dispersing agent, an antistatic agent, a coupling agent, an accelerator, smectite, mica powder, an antioxidant, zinc stearate and lecithin. The production technique comprises the following steps: melting and liquefying, quenching, curing, pulverizing, extracting, drying and carrying out oil extension. The insoluble sulfur capable of prolonging storage time of rubber has the advantages of high quality, high heat stability, favorable dispersity, wear resistance, aging resistance and low cost, can not easily transfer when being used for rubber vulcanization, can tackify vulcanized rubber on the premise of avoiding blooming and reducing scorching, can enhance the aging resistance and wear resistance of the rubber product, prolongs the storage time of the rubber, and is safe to operate in the production process.

Description

technical field [0001] The invention relates to the technical field of processing aids for rubber products, in particular to an insoluble sulfur for prolonging the storage time of rubber materials and a preparation process. Background technique [0002] Insoluble Sulfur (Insoluble Sulfur), molecular formula: Su, is a non-toxic, flammable yellow powder, named for its insolubility in carbon disulfide. It is prepared by thermal polymerization of ordinary sulfur. The number of sulfur atoms in the molecular chain is as high as 108 or more. It has the viscoelasticity and molecular weight distribution of high polymers. Therefore, it is also called elastic sulfur or polymeric sulfur. It belongs to inorganic polymer chemical raw materials. Insoluble sulfur (abbreviated as IS) is a thermoplastic linear polymer homopolymer. As an advanced accelerator and vulcanizing agent in the rubber industry, insoluble sulfur is widely used in the production of tires and other rubber composite produ...

Claims

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Application Information

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IPC IPC(8): C01B17/12
CPCC01B17/12
Inventor 陈杰胡建敏
Owner SHANGHAI JINGHAI ANHUI CHEM
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