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A kind of reclaimed rubber activator, preparation method and application

An activator and reclaimed rubber technology, applied in the field of regenerated rubber, can solve the problems of non-environmentally friendly reclaimed rubber performance, unstable performance of regenerated activator, etc., to improve reaction efficiency and yield, enhance storage stability, and high activation efficiency Effect

Active Publication Date: 2019-10-29
内蒙古寰创橡胶科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problems of unstable performance, non-environmental protection and low performance of regenerated rubber in the prior art, the present invention provides an environmentally friendly, stable and efficient waste vulcanized regenerated rubber activator and its preparation method

Method used

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  • A kind of reclaimed rubber activator, preparation method and application
  • A kind of reclaimed rubber activator, preparation method and application
  • A kind of reclaimed rubber activator, preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] In a 250mL three-necked flask equipped with stirring, a thermometer and a constant pressure dropping funnel, add 20g of 2,4-di-tert-butylphenol, 10g of 2,6-di-tert-butylphenol, 5g of ethylenediamine, and 2g of naphthenic oil , heated and melted at 60°C, then cooled to 20°C, 8 mL of disulfide dichloride was added dropwise through a constant pressure dropping funnel under stirring conditions, the reaction temperature was controlled at 20°C, and the dropping rate was about 2 drops / seconds, the tail gas was absorbed with dilute lye, and after the dropwise addition was completed, the reaction was continued for 3.5 hours to obtain a reddish-brown oily liquid, which was named E-1.

Embodiment 2

[0036] In a 250mL three-neck flask equipped with stirring, a thermometer and a constant pressure dropping funnel, add 10g of 2,4-di-tert-butylphenol, 20g of 2,6-di-tert-butylphenol, 6g of pyridine, and 5g of paraffin oil, Heat and melt at ℃, then cool to 25℃, add sulfur chloride 16mL dropwise through a constant pressure dropping funnel under stirring, control the reaction temperature at 20℃, the dropping rate is about 2 drops / second, and dilute the tail gas with After the alkali solution was absorbed, the temperature was raised to 80°C after the dropwise addition, and the reaction was continued for 1 hour to obtain a reddish-brown oily liquid, which was named E-2.

Embodiment 3

[0038] In a 250mL three-neck flask equipped with stirring, a thermometer and a constant pressure dropping funnel, add 35g of 2,4-di-tert-butylphenol, 5g of naphthenic oil, heat and melt at 50°C, then cool to 20°C, Under the condition of stirring, add 8 mL of disulfur dichloride dropwise through the constant pressure dropping funnel, control the reaction temperature at 20°C, and the drop rate is about 2 drops / second, absorb the tail gas with dilute alkali solution, and continue the reaction after the dropwise addition is completed After 3h, a reddish-brown oily liquid was obtained, which was named as E-3.

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Abstract

The invention relates to a reclaimed rubber activation agent. The activation agent comprises at least one of substances shown in the general formula (please see the formula in the description), wherein R1, R2, R3 and R4 are -OH or -H, at least two groups in R1, R2, R3 or R4 are -OH, and n is larger than or equal to 2. The activation agent has the advantages that the synthesis process is simple, no solvents are added in the reaction process, and no waste water or waste gas is emitted; the activation agent does not contain cancerogenic substances, namely polycyclic aromatic hydrocarbon (anthracene, naphthalene and the like), and conforms to European Union REACH regulations; the consumption of the reclaimed activation agent can be greatly reduced, and use cost is reduced; fourthly, mechanical properties of reclaimed rubber can be remarkably improved.

Description

technical field [0001] The invention relates to a reclaimed rubber activator, a preparation method and application, and belongs to the technical field of regenerated rubber. Background technique [0002] With the rapid development of the transportation industry and the automobile industry, the production of waste rubber is increasing day by day. According to statistics, in 2013, the production of waste tires in my country was nearly 300 million pieces, with a weight of 10.8 million tons. Waste tires are industrial hazardous solid wastes, which are insoluble or insoluble polymer materials, and are called "black" pollution. How to realize the resource utilization of waste tires has become a worldwide problem. The development of recycling of waste tires can protect the environment and alleviate the shortage of rubber resources and high dependence on foreign countries in my country, which has great economic and social benefits. [0003] The regeneration of waste rubber is diffi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J11/28C08L17/00C07C319/24C07C323/20
CPCC07C319/24C07C323/20C08J11/28C08J2317/00Y02W30/62
Inventor 高文廷张小杰周睿谭钦艳郭素焱辛振祥
Owner 内蒙古寰创橡胶科技有限公司