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Vulcanized rubber regeneration activator and preparation method and uses thereof

A compound and reaction kettle technology, applied in the application field of vulcanized rubber regeneration, can solve the problems of low production cost of reclaimed rubber, high production cost of reclaimed rubber, poor infiltration penetration, etc., achieve significant economic and social benefits, and accelerate thermal oxidation. The rate of degradation, the effect of enhancing tensile strength

Inactive Publication Date: 2008-01-30
安徽金马橡胶助剂有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This activator has the following disadvantages: 1, the activity is not strong, and the application range is not wide
For example, the waste rubber regeneration activity of peroxide cross-linking and low-sulfur cross-linking vulcanization system of sulfur compounds is not strong
2. The quality of recycled rubber produced by using it is poor, and the tensile strength and elongation at break are low, which cannot meet the needs of industrial production
3. Poor infiltration and penetration, only suitable for the production of small rubber particles, increasing power consumption and crushing costs
4. The amount of activator used is large, and the production cost of recycled rubber is high
[0004] After extensive searching, there is no new type of rubber with strong activity and wide application; the recycled rubber is of good quality and high tensile strength, which can meet the production needs of the rubber industry; Strong wetting and penetrating power, suitable for the production of small rubber particles; the amount of activator used is small, the production cost of reclaimed rubber is low, and it can be used as a compound of new vulcanized rubber regeneration activator

Method used

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  • Vulcanized rubber regeneration activator and preparation method and uses thereof
  • Vulcanized rubber regeneration activator and preparation method and uses thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Preparation of 2-tert-butyl-p-methylresorcinol polysulfide compound (B-450 vulcanized rubber regeneration activator)

[0034] Put 100 kg of sulfur into the airtight reactor, open the bottle of liquid chlorine, pour 100 kg of chlorine gas into the reactor, heat and stir to obtain the intermediate sulfur monochloride;

[0035] Add 1 ton of oily by-products from the production of 168 antioxidants into the warming tank, heat them with steam to melt them, pump them into the reactor with a vacuum pump, heat, and vacuum dehydrate to obtain intermediate product B;

[0036] Put the prepared intermediate product B into the reaction kettle, keep the temperature to 75 degrees, stir, slowly add 200 kg of sulfur monochloride; after 30 minutes, vacuumize, continue to stir and react for 15 minutes; then heat to 150 degrees; add the catalyst concentration 3 kg of 98% concentrated sulfuric acid solution, add 200 kg of ZR-1 resin toughening agent while stirring, continue to react at high temp...

Embodiment 2

[0038] Preparation of 2-tert-butyl-p-methylresorcinol polysulfide compound (B-450 vulcanized rubber regeneration activator)

[0039] Put 500 kg of sulfur into the airtight reactor, open the bottle of liquid chlorine, pour 500 kg of chlorine into the reactor, heat and stir to obtain the intermediate sulfur monochloride;

[0040] Add 5 tons of oily by-products from the production of 501 antioxidant to the temperature tank, heat it with steam to melt it, pump it into the reactor with a vacuum pump, heat it, and vacuum dehydrate to obtain intermediate product B.

[0041] Put the prepared intermediate product B into the reaction kettle, keep the temperature at 75 degrees, stir, slowly add 1 ton of sulfur monochloride; after 30 minutes, vacuumize, continue to stir and react for 15 minutes; then heat up to 115 degrees; add a concentration of 98 % Concentrated sulfuric acid solution 15 kg, add 1 ton of ZR-4 resin toughening agent while stirring, continue to react at high temperature for 2 h...

Embodiment 3

[0043] Application of 2-tert-butyl p-methylresorcinol polysulfide compound (B-450 vulcanized rubber regeneration activator) in reclaimed rubber

[0044] Waste rubber raw materials: mixed waste rubber of butyl rubber, EPDM rubber, styrene butadiene rubber, nitrile rubber and other synthetic rubbers; rubber powder particle size 16 mesh.

[0045] The dosage of 2-tert-butyl-p-methylresorcinol polysulfide compound (B-450 vulcanized rubber regeneration activator) of the product of the present invention: 0.03% of the weight of the waste rubber raw material.

[0046] Recycled rubber quality: tensile strength (MPa) 11.2; elongation at break above 430;

[0047] Features: The waste rubber powder has a large particle size and can still produce fine reclaimed rubber, which reduces the electricity cost per ton of reclaimed rubber by 120 yuan. In the production process, compared with the traditionally used polyalkylphenol disulfide trade name 420 rubber regeneration activator, rosin is omitted a...

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Abstract

The invention relates to a novel general formula compound that is 2-tert-butyl para-methane meta-benzenediol polysulfide (B-450 vulcanized rubber regeneration activator). The invention also relates to the preparation of the compound and the application of the compound of the invention in waste rubber generation activation.

Description

Technical field [0001] The invention relates to a compound of 2-tert-butyl p-methylresorcinol polysulfide (B-450 vulcanized rubber regeneration activator), a preparation method thereof, and application in the regeneration of vulcanized rubber. Background technique [0002] With the development of society and the rapid growth of the automobile industry and home appliance industry, the use of rubber is increasing. my country is one of the main bases for the processing and production of rubber products in the world. It has gathered many giants of rubber products in the world and is a big rubber consumer. According to statistics from the Beijing Rubber Industry Design Institute, my country's total consumption of natural rubber and synthetic rubber exceeds that of the United States, becoming the world's largest rubber consuming country. Like many other organic materials, the strength, elongation and mechanical properties of rubber will gradually deteriorate over time, making the rubbe...

Claims

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Application Information

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IPC IPC(8): C07C321/28C08K5/375C08C19/20
Inventor 宋同银
Owner 安徽金马橡胶助剂有限公司
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