Nuclear-grade high-temperature-resistance fireproof coating and preparation method thereof

A fire-resistant coating, high-temperature-resistant technology, applied in the field of coatings, to achieve the effects of excellent fire-proof and heat-insulating performance, excellent fire-resistant performance, and low VOC emissions

Active Publication Date: 2015-06-24
HAILONG EMERSON ZHENJIANG ENERGY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003]Existing high-temperature-resistant fire-resistant coatings have poor nuclear radiation resistance and cannot meet the requirements for surface protection of nuclear power equipment

Method used

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  • Nuclear-grade high-temperature-resistance fireproof coating and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Each component in this embodiment is measured in parts by mass.

[0043] First, 51 parts of 1000 mPa·s vinyl phenyl silicone oil, 31 parts of N-P expansion flame retardant, 2 parts of mica powder, 3 parts of wollastonite powder, 3 parts of talc powder, 3 parts of low-temperature glass powder, 2 parts of selenium hydroxide, Add 2 parts of expanded perlite, 1 part of silica sand, and 2 parts of sepiolite powder into the sand mill under stirring, gradually disperse until uniform, and get A component after sand grinding to 300 mesh.

[0044] Next, 34 parts of hydrogen-containing silicone oil with a hydrogen content of 0.4%, 36 parts of a hydrogen-containing silicone oil with a hydrogen content of 1.0%, 10 parts of γ-glycidyl etheroxypropyltrimethoxysilane, 12 parts of γ-aminopropyl Add triethoxysilane and 8 parts of Pt catalyst into the high-speed disperser, and mix uniformly to obtain component B;

[0045] Finally, the nuclear-grade high-temperature-resistant fireproof co...

Embodiment 2

[0047] Each component in this embodiment is measured in parts by mass.

[0048] First, 43 parts of 1000 mPa·s vinyl phenyl silicone oil, 10 parts of N-P expansion flame retardant, 17 parts of expanded graphite, 6 parts of mica powder, 3 parts of kaolin, 4 parts of wollastonite powder, 2 parts of talc powder, 1 part Boron-containing compound, 1 part of iron octoate, 2 parts of low-temperature glass powder, 4 parts of silica sand, and 7 parts of expanded perlite are added to the sand mill under stirring, gradually dispersed until uniform, and sanded to 300 mesh Afterwards, component A is obtained;

[0049] Secondly, 64 parts of hydrogen-containing silicone oil with a hydrogen content of 1.0%, 19 parts of γ-aminopropyl triethoxysilane, 16 parts of γ-glycidyl etheroxypropyl trimethoxysilane, and 1 part of Pt catalyst were added to the high-speed In the disperser, mix evenly to obtain component B;

[0050] Finally, the nuclear-grade high-temperature-resistant fireproof coating is...

Embodiment 3

[0052] Each component in this embodiment is measured in parts by mass.

[0053] First, 56 parts of 800 mPa·s vinyl phenyl silicone oil, 19 parts of expanded graphite, 1 part of wollastonite powder, 2 parts of kaolin, 5 parts of talcum powder, 1 part of iron octoate, 1 part of selenium hydroxide, and 6 parts of expanded pearl Rock and 9 parts of sepiolite powder were added to the sand mill under stirring, gradually dispersed until uniform, and sand-milled to 300 mesh to obtain component A.

[0054] Secondly, 78 parts of hydrogen-containing silicone oil with a hydrogen content of 0.4%, 10 parts of γ-aminopropyl triethoxysilane, 12 parts of γ-glycidyl etheroxypropyl trimethoxysilane, and 10 parts of Pt catalyst were added to the In a high-speed disperser, mix evenly to obtain component B;

[0055] Finally, the nuclear-grade high-temperature-resistant fireproof coating is obtained by uniformly mixing the prepared component A and component B at a mass ratio of 15:1.

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Abstract

The invention disclose a nuclear-grade high-temperature-resistance fireproof coating and a preparation method thereof. The fireproof coating consists of a component A and a component B, wherein the component A comprises phenyl vinyl silicone oil, a magnetic filler, a ceramization auxiliary and other heat-preservation heat-insulation fillers; the component B comprises a cross-linking agent, a coupling agent and a Pt catalyst; in use, the component A and the component B are mixed according to mass ratio of 15:1 and are cured to a film at room temperature. The nuclear-grade high-temperature-resistance fireproof coating does not contain an organic solvent, is convenient to operate, has the characteristics of excellent irradiation performance, good fire swelling performance, high expansion carbonized layer strength and long fireproof age, and can be widely applied to surface protection of nuclear power devices.

Description

Technical field: [0001] The invention relates to the technical field of coatings, in particular to a nuclear-grade high-temperature-resistant fireproof coating and a preparation method thereof. Background technique: [0002] As the cost of coal, oil, and natural gas continues to rise in our country, we are now turning our attention to nuclear power, and nuclear energy utilization technology has entered a period of rapid development. Nuclear radiation exists in many places in nuclear power plants. Radiation will accelerate the aging of materials. Porous concrete surfaces are also prone to absorb radioactive dust to form permanent radioactive sources, which will cause permanent damage to operating and maintenance personnel. Therefore, it is necessary to paint the surface of buildings and equipment. The most commonly used means of protection in nuclear power plants. Special coating for nuclear power is a coating system that meets the unique environmental conditions and techn...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D183/07C09D183/05C09D5/32C09D5/18C09D7/12G21F1/10
Inventor 严玉沃洛科卡尼段佳巍郑家青戴金华
Owner HAILONG EMERSON ZHENJIANG ENERGY TECH
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