Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Strippable radiation-resistant and anti-corrosion coating for nuclear use and preparation method thereof

An anti-corrosion coating and radiation-resistant technology, applied in the field of radiation-resistant materials, can solve problems such as difficulty in complete cleaning, contamination by radioactive substances, difficult cleaning and decontamination of anti-radiation plastic construction technology, etc., to achieve easy peeling and replacement, and improve coating toughness , Easy to decontaminate and clean

Active Publication Date: 2018-07-03
中昊北方涂料工业研究设计院有限公司
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a strippable radiation-resistant and anti-corrosion coating for nuclear use and its preparation method, aiming at the difficulty of cleaning and decontamination after the surface of the existing ground protective coating system is damaged and the defects in the construction process of radiation-resistant plastics. The coating system not only has excellent radiation resistance and medium resistance, but also combines the stripping technology of the coating to endow the protective coating with good strippability, so that the coating can be replaced like a plastic soft board after the surface is damaged. It solves the problem that radioactive dust and other radioactive substances are difficult to clean completely

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Strippable radiation-resistant and anti-corrosion coating for nuclear use and preparation method thereof
  • Strippable radiation-resistant and anti-corrosion coating for nuclear use and preparation method thereof
  • Strippable radiation-resistant and anti-corrosion coating for nuclear use and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] (1) Synthesis of modified epoxy resin: first mix 34.0kg E-12, 20.0kg E-06, 0.6kg dimethylethanolamine and 28.0kg mixed solvent (12.0kg xylene, 11.0kg butyl acetate and 5.0kg Methyl isobutyl ketone) was added, after stirring evenly, 17.4kg of linoleic acid was added and the temperature was raised to 145°C, the temperature was kept until the acid value was ≤2.16mg KOH / g, the temperature was lowered to 28°C, and the material was discharged to obtain the modified epoxy resin .

[0058] (2) Preparation of peelable primer first component

[0059] , first dispersant (2.0kg EFKA-4340, 2.0kg BYK-110), leveling agent (0.2kg BYK-388, 0.4kg BYK-320), defoamer (0.4kg BYK-051, 0.3kg BYK-A 530) and 4.4kg BYK-394 were added to 20.0kg of mixed solvent (5.0kg of propylene glycol methyl ether acetate, 10.0kg of butyl acetate and 5.0kg of butanone), and after stirring well, 20.0kg of iron oxide red, 15.0kg of titanium dioxide and Mica powder 10.0kg, after stirring, add 25.0kg of modified...

Embodiment 2

[0066] (1) Synthesis of modified epoxy resin: 29.7kg E-12, 29.7kg E-06, 0.6kg dimethylethanolamine and 20.0kg mixed solvent (10.0kg xylene, 5.0kg butyl acetate and 5.0kg Methyl isobutyl ketone) was added, after stirring evenly, 20.0kg of linoleic acid was added and the temperature was raised to 145°C, the temperature was kept until the acid value was ≤1.88mg KOH / g, the temperature was lowered to 27°C, and the modified epoxy resin was obtained after discharge.

[0067] (2) Preparation of peelable primer first component

[0068] First put the dispersant (1.0kg EFKA-4340, 2.0kg BYK-110), leveling agent (0.4kg BYK-388, 0.4kg BYK-320), defoamer (0.6kg BYK-051, 0.2kg BYK -A 530) and 7.0kg BYK-394 were added to 20.0kg of mixed solvent (5.0kg of propylene glycol methyl ether acetate, 10.0kg of butyl acetate and 5.0kg of butanone), and after stirring well, 20.0kg of iron oxide red and 10.0kg of titanium dioxide were added kg and mica powder 8.0kg, after stirring, add 30.0kg of modifie...

Embodiment 3

[0075] (1) Synthesis of modified epoxy resin: first 39.0kg E-12, 17.0kg E-03, 0.5kg dimethylethanolamine and 25.0kg mixed solvent (10.0kg cyclohexanone, 10.0kg butyl acetate and 5.0 kg kg methyl ethyl ketone), stir evenly, add 18.5kg linoleic acid and directly heat up to 150°C, keep warm until the acid value is less than or equal to 2.85mg KOH / g, cool down to 30°C, and discharge to obtain the modified epoxy resin.

[0076] (2) Preparation of peelable primer A component

[0077] First, dispersant (2.0kgEFKA-4340, 1.5kg LACTIMON), leveling agent (0.3kg FEKA-3777, 0.3kg BYK-306), defoamer (0.3kg BYK-051, 0.3kg BYK-066N) and 6.0 Add 20.0kg of mixed solvent (5.0kg of propylene glycol methyl ether acetate, 10.0kg of methyl isobutyl ketone and 5.0kg of xylene) to kg TEGO PAD 2700, stir well and add 20.0kg of iron oxide red, 10.0kg of titanium dioxide and talc Powder 10.0kg, after stirring, add 29.0kg of modified epoxy resin that step 1) obtains, grind to fineness and be less than 20...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention provides a peelable radiation-resistant anti-corrosive coating for nuclear application and a preparation method thereof. The coating comprises a primer and a finishing coat. The primer comprises a component A and a component B; according to the chemical reaction measurement method, -OH in component A and -NCO in component B are in equivalence ratio for coating preparation as below: ROH:NCO=1.1-1.3:1; the finishing coat comprises a component C and the component B, and -OH in component C and -NCO in component B are in equivalence ratio for coating preparation as below: ROH:NCO=0.8-1.0:1. The coating provided by the invention has excellent resistance and tolerance on corrosion media, such as nuclear radiation pollution, strong acid, strong base and special oils, and the coating is easy for decontamination, peeling and replacement, so that the destructed surface of the coating can be replaced as a plastic soft plate. The coating solves the problem of difficult complete cleaning of contamination of radioactive dust and other radioactive substances, and can effectively protect the field workers from radiation damage.

Description

technical field [0001] The invention belongs to the field of anti-radiation materials, and in particular relates to a radiation-resistant and anti-corrosion coating for nuclear use with peelability and a preparation method thereof. Background technique [0002] Nuclear energy is characterized by safety, economy, and cleanliness, and mature technologies can support its large-scale production. In the production environment of nuclear energy, nuclear radiation exists in many places. Nuclear radiation not only accelerates the aging of equipment and building materials, but also causes radioactive dust to be adsorbed on the porous concrete surface, forming a permanent radioactive source, which in turn causes continuous damage to workers. Especially in the process of nuclear material production process, the workers directly contact the ground of the plant and facilities, which has the greatest impact on the health of the workers, and the movement of the workers can easily cause th...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C09D175/14C09D7/61C09D7/63C09D5/08C09D5/20
CPCC08K3/22C08K3/34C08K3/38C08K2003/2241C09D5/082C09D5/20C09D7/40C09D175/14
Inventor 宋欢欢陈小庆李超宇李志宝王学龙王茜红
Owner 中昊北方涂料工业研究设计院有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com