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Anti-aging rubber material for rubber-lined pipeline of nuclear power station and preparation method of anti-aging rubber material

A rubber material and aging-resistant technology, which is applied in the field of aging-resistant rubber materials and preparations for rubber-lined pipelines in nuclear power plants, and can solve the problems of short service life of aging-resistant rubber materials

Pending Publication Date: 2022-04-12
LINGAO NUCLEAR POWER +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the prior art, the purpose of this application is to provide an aging-resistant rubber material for rubber-lined pipelines in nuclear power plants, aiming to solve the problem of short service life of the aging-resistant rubber materials for rubber-lined pipelines in nuclear power plants in the prior art

Method used

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  • Anti-aging rubber material for rubber-lined pipeline of nuclear power station and preparation method of anti-aging rubber material
  • Anti-aging rubber material for rubber-lined pipeline of nuclear power station and preparation method of anti-aging rubber material
  • Anti-aging rubber material for rubber-lined pipeline of nuclear power station and preparation method of anti-aging rubber material

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preparation example Construction

[0033] The second aspect of the embodiment of the present application provides a method for preparing an aging-resistant rubber material for a rubber-lined pipeline in a nuclear power plant, comprising the following steps:

[0034] Step S10: weighing each raw material component according to the components contained in the aging-resistant rubber material for the rubber-lined pipeline of the nuclear power plant;

[0035] Step S20: performing mixing treatment, rubber mixing treatment and vulcanization treatment on each raw material component to obtain an aging-resistant rubber material for a rubber-lined pipeline of a nuclear power plant.

[0036] The embodiment of the present application weighs each raw material component according to the components contained in the aging-resistant rubber material for the above-mentioned nuclear power plant rubber-lined pipeline and mixes them, so that EPDM rubber, active agent, carbon black, anti-aging agent, vulcanizing agent, The viscosity-in...

Embodiment 1

[0055] The aging-resistant rubber material for nuclear power plant rubber-lined pipelines of this embodiment, raw materials and weight are: 100 parts of EPDM rubber, 3.5 parts of activator, 25 parts of carbon black, 6.7 parts of anti-aging agent, 3.6 parts of vulcanizing agent, viscosity increasing 20 doses.

[0056] The EPDM rubber is ENB type ethylene propylene rubber, the ethylene content is 68.5%, the propylene content is 22.2%, and the ethylidene norbornene (ENB) content is 9.3%;

[0057] The active agent is zinc oxide;

[0058] Carbon black is 15 parts of N550 and 10 parts of gas carbon black;

[0059] The anti-aging agent is N-(1,3-dimethyl)butyl-N'-phenyl-p-phenylenediamine (anti-4020) 3 parts, 2-mercaptobenzimidazole (anti-MB) 2 parts, N-phenyl - 1.5 parts of 2-naphthylamine (anti-D), 0.2 parts of N-cyclohexylthiophthalimide (anti-scorch CTP);

[0060] The vulcanizing agent is 2,5-dimethyl-2,5-bis-tert-butylperoxyhexane (bis-25) 3 parts, cyanuric acid triallylonitr...

Embodiment 2

[0071] The aging-resistant rubber material for the rubber-lined pipeline of the nuclear power plant of the present embodiment, raw materials and weight are: 100 parts of EPDM rubber, 3.5 parts of activator, 25 parts of carbon black, 6.7 parts of anti-aging agent, 3.6 parts of vulcanizing agent, viscosity increasing 20 doses.

[0072] The EPDM rubber is ENB type ethylene propylene rubber, the ethylene content is 68.5%, the propylene content is 22.2%, and the ethylidene norbornene (ENB) content is 9.3%;

[0073] The active agent is zinc oxide;

[0074] Carbon black is 15 parts of N550 and 10 parts of gas carbon black;

[0075] The anti-aging agent is N-(1,3-dimethyl)butyl-N'-phenyl-p-phenylenediamine (anti-4020) 3 parts, 2-mercaptobenzimidazole (anti-MB) 2 parts, N-phenyl - 1.5 parts of 2-naphthylamine (anti-D), 0.2 parts of N-cyclohexylthiophthalimide (anti-scorch CTP);

[0076] The vulcanizing agent is 2,5-dimethyl-2,5-bis-tert-butylperoxyhexane (bis-25) 3 parts, cyanuric a...

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Abstract

The invention relates to the technical field of nuclear power station corrosion prevention, and discloses an anti-aging rubber material for a nuclear power station rubber-lined pipeline, which is prepared from the following raw materials in parts by weight: 100 parts of ethylene propylene diene monomer, 2-6 parts of an active agent, 20-35 parts of carbon black, 3-6 parts of an anti-aging agent, 3-5 parts of a vulcanizing agent and 18-22 parts of a tackifying aid. In addition, the invention also discloses a preparation method of the anti-aging rubber material for the rubber lined pipeline of the nuclear power station. The rubber-lined pipeline prepared from the anti-aging rubber material can meet the technical requirements of a nuclear island cooling water system of a nuclear power station, can meet the life requirement that the total life of the nuclear power station is 60 years, and greatly reduces the operation cost of the nuclear power station.

Description

technical field [0001] The application belongs to the technical field of nuclear power plant anticorrosion, and in particular relates to an aging-resistant rubber material for a rubber-lined pipeline of a nuclear power plant and a preparation method thereof. Background technique [0002] The operating medium of the cold source (SEC, Essential Service Water, nuclear island emergency water system) system piping of nuclear island equipment in nuclear power plants is seawater. Due to the high content of halogen ions such as chloride ions in seawater, and complex components such as marine microorganisms are highly corrosive to carbon steel materials, an anti-corrosion isolation layer must be used to prevent the inner wall of carbon steel pipes from directly contacting seawater. At present, most carbon steel pipelines use chloroprene (CR) rubber as the anti-corrosion lining material. Foreign products), it needs to be replaced after 20 years. However, the replacement of seawater ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/16C08L45/00C08K3/22C08K3/04C08K3/26
Inventor 严海德周游游李宇航李娜孙超超
Owner LINGAO NUCLEAR POWER
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