Anti-irradiation easy-decontamination paint and preparation method thereof

A technology that is easy to decontaminate and is resistant to radiation. It is used in anti-fouling/underwater coatings, radiation-absorbing coatings, anti-corrosion coatings, etc., which can solve the problem of increased waste liquid treatment burden, prone to chalking of coatings, and high requirements for coating performance. problem, to achieve the effects of strong self-cleaning, improved radiation resistance, and low friction

Active Publication Date: 2017-01-11
CNOOC CHANGZHOU PAINT & COATINGS IND RES INST +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The performance requirements of the coating are high and the technical difficulty is great, which is mainly reflected in the following aspects: First, the internal nuclear radiation dose is large. Although a small amount of radiation can cross-link some polymer chain segments, the excessive radioactive radiation Illumination can easily cause the chemical bonds in the polymer to break and degrade, which has a strong destructive effect on the polymer base material system in the coating, and the coating is prone to problems such as powdering and wrinkling, resulting in a serious decline in the protective effect
[0003] The decommissioning of exhaust towers of nuclear power plants and nuclear facilities has been cleaned and decontaminated by alternating acid and alkali methods. This method produces a large amount of secondary waste, which increases the burden of waste liquid treatment and increases the cost of decommissioning.

Method used

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  • Anti-irradiation easy-decontamination paint and preparation method thereof
  • Anti-irradiation easy-decontamination paint and preparation method thereof
  • Anti-irradiation easy-decontamination paint and preparation method thereof

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preparation example Construction

[0029] Preparation of component A: (1) Weigh the fluorocarbon resin and diluent of the formula into the container, stir evenly to form a transparent solution;

[0030] (2) Add coloring pigments, fillers, anti-corrosion pigments, flame retardants, and dispersants in the formulated amount and stir for 15 minutes;

[0031] (3) Grinding the solution obtained in step (2), and after the fineness of the grinding slurry is less than or equal to 35 μm, transfer the slurry into a stirring container and continue stirring for 30 minutes to obtain component A;

[0032] Preparation of component B: filter the modified aromatic polyisocyanate curing agent and / or aliphatic polyisocyanate curing agent to obtain component B;

[0033] Mixing: Mixing component A and component B in proportion is a radiation-resistant, easy-to-stain paint.

Embodiment 1-5

[0036] (1) Preparation of component A

[0037] ① Prepare each component according to the following ratio

[0038] In terms of weight percentage, component A includes the following components: 40-60% fluorocarbon resin, 4-10% colored pigment, 15-25% filler, 10-15% anti-corrosion pigment, 5-15% flame retardant, Dispersion aid 0.5-1.5%, diluent 5-10%.

[0039] The specific formula in each embodiment is shown in Table 1.

[0040] The formula of A component in each embodiment of table 1

[0041]

[0042]

[0043] ②Specific operation: Add fluorocarbon resin and diluent into the mixing tank, stir until a uniform transparent liquid is formed, then add coloring pigment, filler, anti-corrosion pigment, flame retardant, and dispersing aid in sequence and continue stirring for 15 minutes, then transfer to sand When the fineness of the grinding slurry is less than or equal to 35 μm, transfer the grinding slurry into the mixing tank, and after stirring for 30 minutes, take a sample...

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Abstract

The invention belongs to the technical field of novel materials and particularly relates to anti-irradiation easy-decontamination paint and a preparation method thereof. The anti-irradiation easy-decontamination paint is formed by mixing of a component A and a component B. The component A is prepared from, by weight, 40-60% of fluorocarbon resin, 4-10% of tinting pigments, 15-25% of filler, 10-15% of anticorrosion pigments, 5-15% of a flame retardant, 0.5-1.5% of a dispersing auxiliary agent and 5-10% of a diluting agent. The component B is selected from one or both of a modified aromatic polyisocyanate curing agent and an aliphatic polyisocyanate curing agent. A coating of the paint prepared according to the method is not only resistant to irradiation, weather and corrosion but also easy to clean to remove radioactive pollutants.

Description

technical field [0001] The invention belongs to the technical field of new materials, and in particular relates to a radiation-resistant and easy-to-decontamination coating and a preparation method thereof. Background technique [0002] The decommissioning of exhaust towers of nuclear power plants and nuclear facilities has always been a difficult problem. In order to ensure the normal operation of exhaust towers within the service life of nuclear power plants, professional protective coatings must be used. On the one hand, the basic protection of the coating must be provided. A dense, easily cleaned surface to remove radioactive contamination. The performance requirements of the coating are high and the technical difficulty is great, which is mainly reflected in the following aspects: First, the internal nuclear radiation dose is large. Although a small amount of radiation can cross-link some polymer chain segments, the excessive radioactive radiation Illumination can easi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D127/12C09D5/32C09D5/16C09D5/08
CPCC08K2201/014C08L2201/08C08L2205/02C09D5/084C09D5/1687C09D5/32C09D127/12C08L27/18C08K13/06C08K2003/2296C08K2003/328C08K2003/327C08K3/34
Inventor 倪维良朱亚君王留方魏建国常会芳陆文明郭亮亮张睿
Owner CNOOC CHANGZHOU PAINT & COATINGS IND RES INST
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