Epoxy resin coating and preparation method and application thereof

An epoxy resin coating, epoxy resin technology, applied in epoxy resin coatings, anti-corrosion coatings, coatings and other directions, can solve the problems of low construction efficiency, peeling, low decontamination rate of nuclear pollutants, etc., to improve radiation resistance Illumination ability, increased crosslink density, excellent tolerance effects

Active Publication Date: 2021-10-26
T&H NOVEL MATERIALS (SUZHOU) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 1) Existing epoxy coatings have poor adhesion to concrete substrates under high cumulative radiation doses, and the decontamination rate of nuclear pollutants is low;
[0006] 2) The film thickness of the existing epoxy coating is low in single-layer construction, and putty needs to be scraped and applied during the construction, which requires a large amount of polishing, low construction efficiency, and poor tolerance. After construction in the high-humidity environment of the containment, it is easy to cause paint blistering , fall off, peel off

Method used

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  • Epoxy resin coating and preparation method and application thereof
  • Epoxy resin coating and preparation method and application thereof
  • Epoxy resin coating and preparation method and application thereof

Examples

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Effect test

Embodiment 1

[0043] This embodiment provides a kind of epoxy resin paint, comprises base material and amine curing agent, and described base material raw material is composed of:

[0044]

[0045]

[0046] The preparation method of the self-emulsifying epoxy resin modified by the organosilicon oligomer comprises the steps:

[0047]1) Mix γ-glycidyl etheroxypropyltrimethoxysilane (KH560), dimethyldiethoxysilane, and water for hydrolysis, the hydrolysis temperature is 60°C, and the hydrolysis time is 4h. The γ-glycidol Etheroxypropyltrimethoxysilane: dimethyldiethoxysilane: the mass ratio of water is 100:20:10 to obtain the organosilicon oligomer (the number average molecular weight of the organosilicon oligomer is 500- 1000);

[0048] 2) Silicone oligomer and self-emulsifying epoxy resin (self-emulsifying epoxy resin is self-emulsifying bisphenol A epoxy resin with epoxy equivalent 188-200, purchased from Allnex Company, model 147W) are mixed and heated for modification , the modifi...

Embodiment 2

[0056] This embodiment provides a kind of epoxy resin paint, comprises base material and amine curing agent, and described base material raw material is composed of:

[0057]

[0058] The preparation method of the self-emulsifying epoxy resin modified by the organosilicon oligomer comprises the steps:

[0059] 1) Mix γ-glycidyl etheroxypropyltrimethoxysilane (KH560), diphenyldiethoxysilane, and water for hydrolysis. The hydrolysis temperature is 65°C, and the hydrolysis time is 4 hours. The γ-glycidol Etheroxypropyltrimethoxysilane: diphenyldiethoxysilane: the mass ratio of water is 100:20:10 to obtain the organosilicon oligomer (the number average molecular weight of the organosilicon oligomer is 600- 1000);

[0060] 2) Silicone oligomer and self-emulsifying epoxy resin (self-emulsifying epoxy resin is a self-emulsifying novolac epoxy resin with a functionality of 2.3 and an epoxy equivalent of 172-182, purchased from Huntsman Company, model PY340-2) Mixing and heating f...

Embodiment 3

[0068] This embodiment provides a kind of epoxy resin paint, comprises base material and amine curing agent, and described base material raw material is composed of:

[0069]

[0070] The preparation method of the self-emulsifying epoxy resin modified by the organosilicon oligomer comprises the steps:

[0071] 1) Mix γ-glycidyl etheroxypropyltrimethoxysilane (KH560), dimethyldiethoxysilane, and water for hydrolysis, the hydrolysis temperature is 55°C, and the hydrolysis time is 5h. The γ-glycidol Etheroxypropyltrimethoxysilane: dimethyldiethoxysilane: the mass ratio of water is 100:15:15, to obtain the organosilicon oligomer (the number average molecular weight of the organosilicon oligomer is 600- 800);

[0072] 2) Silicone oligomer and self-emulsifying epoxy resin (self-emulsifying epoxy resin is self-emulsifying bisphenol A epoxy resin with epoxy equivalent 188-200, purchased from Allnex Company, model 147W) are mixed and heated for modification , the modification temp...

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Abstract

The invention belongs to the field of nuclear power protective coatings, and particularly relates to an epoxy resin coating and a preparation method and application thereof. The epoxy resin coating provided by the invention comprises a base material and an amine curing agent, and the base material comprises organic silicon oligomer modified self-emulsifying epoxy resin, an inorganic hydration material, mineral fibers, a radiation-resistant filler and a wetting dispersant in specific parts by weight. The epoxy resin coating provided by the invention has excellent irradiation resistance, chemical medium tolerance and corrosion resistance; meanwhile, the solid content of the coating is high, the film thickness of single-channel construction reaches up to 200 mum without cracking, and the coating can be directly applied to the surface of concrete without putty.

Description

technical field [0001] The invention belongs to the field of nuclear power protective coatings, in particular to epoxy resin coatings and their preparation methods and applications. Background technique [0002] As a low-carbon energy source, nuclear power is an important part of new energy sources and an important foundation for my country's sustainable energy development in the future. According to the joint prediction of the Organization for Economic Cooperation and Development and the International Energy Agency, by 2050, the global nuclear power generation capacity will double on the current basis, and the proportion of power generation will reach 17% of the world's total power generation. But at present, the proportion of nuclear power in my country's total power generation is still low, accounting for only about 3%, far below the global average of 11%. But in the existing power generation structure, coal power alone accounts for 74% of it. If the demand for electric...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D183/06C09D5/08C09D7/61
CPCC09D163/00C09D5/08C09D7/61C09D7/70C08K2003/2241C08L83/06C08K7/06C08K3/22C08K3/36
Inventor 王书传张武军彭家全梁上海
Owner T&H NOVEL MATERIALS (SUZHOU) CO LTD
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