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Ultrafine powder reinforced rubber as well as preparation method and application thereof

A technology of reinforcing rubber and ultra-fine powder, which is applied in the field of composite rubber, can solve the problems of declining production of natural gas semi-reinforcing carbon black, stagnant production technology, and high natural gas price, and achieve good aging resistance and wear resistance High, good tensile strength effect

Inactive Publication Date: 2020-11-10
贵州仁宜智科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Before the 1980s, natural gas semi-reinforced carbon black was the backbone product in my country's carbon black family. It was replaced by carbon black by the oil furnace method with a lower price. Due to the high price of natural gas, the production of natural gas semi-reinforced carbon black has long been stopped abroad. The radial tire technology imported from abroad does not use natural gas semi-reinforced carbon black. As a result, the production of domestic natural gas semi-reinforced carbon black has declined year by year, and the production technology has stagnated
[0003] In the existing technology, with the emergence of large-scale equipment capacity, diversified product varieties, process control and product packaging automation, the new process oil furnace carbon has developed rapidly from scratch in the past 20 years, and the oil furnace semi-reinforced carbon black has gradually been obtained. However, compared with natural gas semi-reinforced carbon black, the oil furnace carbon black of the new process has the disadvantages of impure quality, unstable properties, poor elasticity, and high heat generation, so there is an urgent need for a semi-reinforced carbon with natural gas Materials with similar properties to black, and can replace natural gas semi-reinforced carbon black in rubber

Method used

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  • Ultrafine powder reinforced rubber as well as preparation method and application thereof
  • Ultrafine powder reinforced rubber as well as preparation method and application thereof
  • Ultrafine powder reinforced rubber as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A preparation method of modified fly ash in superfine powder reinforced rubber, comprising the steps of:

[0032] 1) drying the fly ash with a particle size of 150 mesh to constant weight to obtain superfine fly ash;

[0033] 2) Add the superfine fly ash and 0.5 part of activator stearic acid into deionized water together, and after ball milling for 8 hours, evaporate the deionized water at 100°C and dry to constant weight to obtain pretreated powder coal ash;

[0034] 3) Heat the pretreated fly ash in step 2) to 110°C, add 2 parts of coupling agent I and absolute ethanol, first add the silane coupling agent, and stir at constant temperature for 15 minutes, then add the carbonate coupling agent , and stirred at constant temperature for 6 minutes to obtain modified fly ash;

[0035] Wherein, the volume ratio of the absolute ethanol to the coupling agent I is 1:1.

[0036] A preparation method of superfine powder reinforced rubber, comprising the steps of:

[0037] 1)...

Embodiment 2

[0042] A preparation method of modified fly ash in superfine powder reinforced rubber, comprising the steps of:

[0043] 1) drying the fly ash with a particle size of 100 mesh to constant weight to obtain superfine fly ash;

[0044] 2) Add the superfine fly ash and 0.75 parts of activator stearic acid into deionized water together, and after ball milling for 6 hours, evaporate the deionized water at 110°C and dry to constant weight to obtain pretreated powder coal ash;

[0045] 3) Heat the pretreated fly ash in step 2) to 120°C, add 3 parts of coupling agent I and absolute ethanol, first add the silane coupling agent, and stir at constant temperature for 12 minutes, then add the carbonate coupling agent , and stirred at constant temperature for 8 minutes to obtain modified fly ash;

[0046] Wherein, the volume ratio of the absolute ethanol to the coupling agent I is 1.5:1.

[0047] A preparation method of superfine powder reinforced rubber, comprising the steps of:

[0048] ...

Embodiment 3

[0053] A preparation method of modified fly ash in superfine powder reinforced rubber, comprising the steps of:

[0054] 1) drying the fly ash with a particle size of 60 mesh to constant weight to obtain superfine fly ash;

[0055] 2) Add the superfine fly ash from step 1) and 1 part of activator stearic acid into deionized water, after ball milling for 5 hours, evaporate the deionized water at 120°C and dry to constant weight to obtain pretreated powder coal ash;

[0056] 3) Heat the pretreated fly ash in step 2) to 130°C, add 4 parts of coupling agent I and absolute ethanol, first add the silane coupling agent, and stir at constant temperature for 10 minutes, then add the carbonate coupling agent , and stirred at constant temperature for 10 minutes to obtain modified fly ash;

[0057] Wherein, the volume ratio of the absolute ethanol to the coupling agent I is 2:1.

[0058] A preparation method of superfine powder reinforced rubber, comprising the steps of:

[0059] 1) W...

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Abstract

The invention relates to the technical field of composite rubber, in particular to superfine powder reinforced rubber as well as a preparation method and application thereof. The powder reinforced rubber includes, by weight, 100 parts of rubber, 30-40 parts of modified fly ash, 2-2.5 parts of nano-zinc oxide, 2-4 parts of a coupling agent I, 5-8 parts of a coupling agent II, 1-2 parts of a vulcanization accelerator, 2-3 parts of a plasticizer, 0.5-1 part of an activator, 1-1.5 parts of sulfur and 0.6-0.8 part of an auxiliary agent. According to the invention, the modified fly ash is used as areinforcing agent instead of natural gas semi-reinforced carbon black, and the modified fly ash is applied to the rubber, so that the ultrafine powder reinforced rubber which can be applied to naturalrubber, nitrile rubber, chloroprene rubber or butadiene rubber is prepared.

Description

technical field [0001] The invention relates to the technical field of composite rubber, in particular to a superfine powder reinforced rubber and its preparation method and application. Background technique [0002] Before the 1980s, natural gas semi-reinforced carbon black was the backbone product in my country's carbon black family. It was replaced by carbon black by the oil furnace method with a lower price. Due to the high price of natural gas, the production of natural gas semi-reinforced carbon black has long been stopped abroad. The radial tire technology imported from abroad does not use natural gas semi-reinforced carbon black. As a result, the production of domestic natural gas semi-reinforced carbon black has declined year by year, and the production technology has stagnated. [0003] In the existing technology, with the emergence of large-scale equipment capacity, diversified product varieties, process control and product packaging automation, the new process oil...

Claims

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Application Information

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IPC IPC(8): C08L7/00C08L9/02C08L11/00C08L9/00C08K13/06C08K9/06C08K9/04C08K7/26C08K3/22C08K3/06C08K3/36C08K5/405C08K5/17
CPCC08L7/00C08L9/02C08L11/00C08L9/00C08L2205/02C08L2205/035C08K2201/011C08K2003/2296C08K2201/005
Inventor 王付军
Owner 贵州仁宜智科技有限公司
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