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Anti-aging nitrile rubber/o-phenylenediamine modified graphene oxide composite material

A technology of o-phenylenediamine and nitrile-butadiene rubber is applied in the field of aging-resistant nitrile-butadiene rubber/o-phenylenediamine-modified graphene oxide composite materials, and can solve the problems of high cost, complex process, low output and the like

Active Publication Date: 2019-06-11
PETROCHINA CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method is complicated in technology and high in cost, which is not conducive to industrialized production; (2) intercalation of small molecule rubber anti-aging agent to the interlayer of inorganic sheet filler hydrotalcite, and adding the hydrotalcite after intercalation modification to the rubber , while improving the aging resistance of the rubber, it inhibits the escape of the anti-aging agent
However, this method is complicated in process and low in yield, which is not conducive to industrial production.

Method used

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  • Anti-aging nitrile rubber/o-phenylenediamine modified graphene oxide composite material
  • Anti-aging nitrile rubber/o-phenylenediamine modified graphene oxide composite material
  • Anti-aging nitrile rubber/o-phenylenediamine modified graphene oxide composite material

Examples

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Embodiment 1

[0076] This embodiment provides a kind of anti-aging nitrile rubber / o-phenylenediamine modified graphene oxide composite material F 1 , in parts by weight, the composite material comprises the following raw material components: 100 parts of nitrile rubber raw rubber, 1 part of stearic acid, 3 parts of zinc oxide, 0.7 parts of accelerator TBBS, 1.5 parts of sulfur, 40 parts of carbon black, 3 parts of o-phenylenediamine modified graphene oxide.

[0077] The preparation method of o-phenylenediamine-modified graphene oxide: Add 1 g of graphite oxide into 1000 mL of deionized water, and ultrasonicate for 1 h at a power of 800 W to obtain a graphene oxide dispersion liquid, which is designated as liquid A. Then, 1 g of o-phenylenediamine was dissolved in 500 ml of ethanol as liquid B. Mix liquid A and liquid B with ultrasound for 30 minutes to obtain a mixed dispersion. Finally, the mixed dispersion is reacted in a sealed hydrothermal reactor at 180°C for 12 hours. The product is ...

Embodiment 2

[0090] This embodiment provides a kind of anti-aging nitrile rubber / o-phenylenediamine modified graphene oxide composite material F 4 , in parts by weight, the composite material comprises the following raw material components: 100 parts of nitrile rubber raw rubber, 1 part of stearic acid, 3 parts of zinc oxide, 0.7 parts of accelerator TBBS, 1.5 parts of sulfur, 40 parts of carbon black, 1 part of o-phenylenediamine modified graphene oxide. The preparation method of o-phenylenediamine modified graphene oxide is shown in Example 1.

[0091] In this example, mechanical blending is used to prepare composite materials. The specific process is as follows: 100 parts of nitrile rubber raw rubber, 1 part of stearic acid, 3 parts of zinc oxide, 0.7 parts of accelerator TBBS, 1.5 parts of sulfur, carbon 40 parts of black and 1 part of o-phenylenediamine-modified graphene oxide were fully blended on a two-roll mill to obtain a rubber compound; then the rubber compound was vulcanized b...

Embodiment 3

[0094] This embodiment provides a kind of anti-aging nitrile rubber / o-phenylenediamine modified graphene oxide composite material F 5 , the raw materials are as follows: in parts by weight, 100 parts of nitrile rubber raw rubber, 1 part of stearic acid, 3 parts of zinc oxide, 0.7 parts of accelerator TBBS, 1.5 parts of sulfur, 40 parts of carbon black, o-phenylenediamine modified 4 parts of graphene oxide. The preparation method of o-phenylenediamine modified graphene oxide is shown in Example 1.

[0095] In this example, mechanical blending is used to prepare composite materials. The specific process is as follows: 100 parts of nitrile rubber raw rubber, 1 part of stearic acid, 3 parts of zinc oxide, 0.7 parts of accelerator TBBS, 1.5 parts of sulfur, carbon 40 parts of black and 4 parts of o-phenylenediamine-modified graphene oxide were fully blended on a two-roll mill to obtain a rubber compound; then the rubber compound was vulcanized by a flat vulcanizer at 145°C and 10M...

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Abstract

The invention provides an anti-aging nitrile rubber / o-phenylenediamine modified graphene oxide composite material. The composite material comprises the following raw materials in parts by weight: 100parts of raw rubber of nitrile rubber, 0-5 parts of stearic acid, 1-7 parts of zinc oxide, 0.5-5 parts of an accelerator N-tert-butylbenzothiazole-2-sulphenamide (TBBS), 1-5 parts of sulfur, 0-60 parts of carbon black and 0.2-10 parts of o-phenylenediamine modified graphene oxide. According to the invention, the o-phenylenediamine modified graphene oxide is used as an anti-aging agent of nitrile rubber, so that the problem of poor anti-aging performance caused by poor dispersibility of p-phenylenediamine modified graphene oxide in rubber is solved, and meanwhile, the anti-aging agent o-phenylenediamine is chemically grafted to the graphene oxide. Therefore, the anti-aging agent cannot diffuse into the environment, and a green anti-aging effect is well achieved.

Description

technical field [0001] The invention belongs to the technical field of rubber composite material preparation, in particular to an aging-resistant nitrile rubber / o-phenylenediamine modified graphene oxide composite material. Background technique [0002] The aging problem of nitrile rubber products greatly reduces its service life, especially in some harsh environments (such as: high temperature, high pressure, acidic, alkaline and oily environments) will further shorten the service life of nitrile rubber products, Thereby increasing the cost of use. In order to improve the aging resistance of nitrile rubber products, various rubber antioxidants are usually used in nitrile rubber. However, most of the currently used nitrile rubber anti-aging agents are small molecules, which are easy to escape from the rubber matrix during production and use, which reduces the anti-aging effect of rubber products on the one hand; on the other hand brings environmental pollution, etc. questi...

Claims

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Application Information

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IPC IPC(8): C08L9/02C08K13/06C08K3/22C08K5/09C08K3/06C08K3/04C08K9/04
Inventor 赵洪国何显儒杨珊珊李晶李天祥胡海华钟锐景丽周雷何连成宋中勤万颂涵陈宋波李波吴宇
Owner PETROCHINA CO LTD
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